diff options
Diffstat (limited to 'examples/datavisualization/graphgallery')
44 files changed, 9713 insertions, 0 deletions
diff --git a/examples/datavisualization/graphgallery/CMakeLists.txt b/examples/datavisualization/graphgallery/CMakeLists.txt new file mode 100644 index 00000000..c66fee25 --- /dev/null +++ b/examples/datavisualization/graphgallery/CMakeLists.txt @@ -0,0 +1,75 @@ +# Copyright (C) 2023 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +cmake_minimum_required(VERSION 3.16) +project(graphgallery LANGUAGES CXX) + +set(CMAKE_INCLUDE_CURRENT_DIR ON) + +set(CMAKE_AUTOMOC ON) +set(CMAKE_AUTORCC ON) +set(CMAKE_AUTOUIC ON) + +if(NOT DEFINED INSTALL_EXAMPLESDIR) + set(INSTALL_EXAMPLESDIR "examples") +endif() + +set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}") + +find_package(Qt6 COMPONENTS Core) +find_package(Qt6 COMPONENTS Gui) +find_package(Qt6 COMPONENTS Widgets) +find_package(Qt6 COMPONENTS DataVisualization) + +qt_add_executable(graphgallery + main.cpp + bargraph.cpp bargraph.h + graphmodifier.cpp graphmodifier.h + rainfalldata.cpp rainfalldata.h + variantbardatamapping.cpp variantbardatamapping.h + variantbardataproxy.cpp variantbardataproxy.h + variantdataset.cpp variantdataset.h + scattergraph.cpp scattergraph.h + scatterdatamodifier.cpp scatterdatamodifier.h + axesinputhandler.cpp axesinputhandler.h + surfacegraph.cpp surfacegraph.h + surfacegraphmodifier.cpp surfacegraphmodifier.h + custominputhandler.cpp custominputhandler.h + highlightseries.cpp highlightseries.h + topographicseries.cpp topographicseries.h +) +set_target_properties(graphgallery PROPERTIES + WIN32_EXECUTABLE TRUE + MACOSX_BUNDLE TRUE +) +target_link_libraries(graphgallery PUBLIC + Qt::Core + Qt::Gui + Qt::Widgets + Qt::DataVisualization +) + +set(graphgallery_resource_files + "data/raindata.txt" + "data/layer_1.png" + "data/layer_2.png" + "data/layer_3.png" + "data/oilrig.obj" + "data/pipe.obj" + "data/refinery.obj" + "data/maptexture.jpg" + "data/topography.png" +) + +qt6_add_resources(graphgallery "graphgallery" + PREFIX + "/" + FILES + ${graphgallery_resource_files} +) + +install(TARGETS graphgallery + RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" + BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" + LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" +) diff --git a/examples/datavisualization/graphgallery/axesinputhandler.cpp b/examples/datavisualization/graphgallery/axesinputhandler.cpp new file mode 100644 index 00000000..3292650e --- /dev/null +++ b/examples/datavisualization/graphgallery/axesinputhandler.cpp @@ -0,0 +1,116 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "axesinputhandler.h" +#include <QtCore/qmath.h> + +AxesInputHandler::AxesInputHandler(QAbstract3DGraph *graph, QObject *parent) : + Q3DInputHandler(parent) +{ + //! [3] + // Connect to the item selection signal from graph + connect(graph, &QAbstract3DGraph::selectedElementChanged, this, + &AxesInputHandler::handleElementSelected); + //! [3] +} + +//! [0] +void AxesInputHandler::mousePressEvent(QMouseEvent *event, const QPoint &mousePos) +{ + Q3DInputHandler::mousePressEvent(event, mousePos); + if (Qt::LeftButton == event->button()) + m_mousePressed = true; +} +//! [0] + +//! [2] +void AxesInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos) +{ + //! [5] + // Check if we're trying to drag axis label + if (m_mousePressed && m_state != StateNormal) { + //! [5] + setPreviousInputPos(inputPosition()); + setInputPosition(mousePos); + handleAxisDragging(); + } else { + Q3DInputHandler::mouseMoveEvent(event, mousePos); + } +} +//! [2] + +//! [1] +void AxesInputHandler::mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos) +{ + Q3DInputHandler::mouseReleaseEvent(event, mousePos); + m_mousePressed = false; + m_state = StateNormal; +} +//! [1] + +void AxesInputHandler::handleElementSelected(QAbstract3DGraph::ElementType type) +{ + //! [4] + switch (type) { + case QAbstract3DGraph::ElementAxisXLabel: + m_state = StateDraggingX; + break; + case QAbstract3DGraph::ElementAxisYLabel: + m_state = StateDraggingY; + break; + case QAbstract3DGraph::ElementAxisZLabel: + m_state = StateDraggingZ; + break; + default: + m_state = StateNormal; + break; + } + //! [4] +} + +void AxesInputHandler::handleAxisDragging() +{ + float distance = 0.0f; + + //! [6] + // Get scene orientation from active camera + float xRotation = scene()->activeCamera()->xRotation(); + float yRotation = scene()->activeCamera()->yRotation(); + //! [6] + + //! [7] + // Calculate directional drag multipliers based on rotation + float xMulX = qCos(qDegreesToRadians(xRotation)); + float xMulY = qSin(qDegreesToRadians(xRotation)); + float zMulX = qSin(qDegreesToRadians(xRotation)); + float zMulY = qCos(qDegreesToRadians(xRotation)); + //! [7] + + //! [8] + // Get the drag amount + QPoint move = inputPosition() - previousInputPos(); + + // Flip the effect of y movement if we're viewing from below + float yMove = (yRotation < 0) ? -move.y() : move.y(); + //! [8] + + //! [9] + // Adjust axes + switch (m_state) { + case StateDraggingX: + distance = (move.x() * xMulX - yMove * xMulY) / m_speedModifier; + m_axisX->setRange(m_axisX->min() - distance, m_axisX->max() - distance); + break; + case StateDraggingZ: + distance = (move.x() * zMulX + yMove * zMulY) / m_speedModifier; + m_axisZ->setRange(m_axisZ->min() + distance, m_axisZ->max() + distance); + break; + case StateDraggingY: + distance = move.y() / m_speedModifier; // No need to use adjusted y move here + m_axisY->setRange(m_axisY->min() + distance, m_axisY->max() + distance); + break; + default: + break; + } + //! [9] +} diff --git a/examples/datavisualization/graphgallery/axesinputhandler.h b/examples/datavisualization/graphgallery/axesinputhandler.h new file mode 100644 index 00000000..bb8432ac --- /dev/null +++ b/examples/datavisualization/graphgallery/axesinputhandler.h @@ -0,0 +1,54 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef AXESINPUTHANDLER_H +#define AXESINPUTHANDLER_H + +#include <QtDataVisualization/q3dinputhandler.h> +#include <QtDataVisualization/qabstract3dgraph.h> +#include <QtDataVisualization/qvalue3daxis.h> + +//! [0] +class AxesInputHandler : public Q3DInputHandler +//! [0] +{ + Q_OBJECT + + enum InputState { + StateNormal = 0, + StateDraggingX, + StateDraggingZ, + StateDraggingY + }; + +public: + explicit AxesInputHandler(QAbstract3DGraph *graph, QObject *parent = 0); + + inline void setAxes(QValue3DAxis *axisX, QValue3DAxis *axisZ, QValue3DAxis *axisY) { + m_axisX = axisX; + m_axisZ = axisZ; + m_axisY = axisY; + } + + //! [1] + inline void setDragSpeedModifier(float modifier) { m_speedModifier = modifier; } + //! [1] + + virtual void mousePressEvent(QMouseEvent *event, const QPoint &mousePos); + virtual void mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos); + virtual void mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos); + +private: + void handleElementSelected(QAbstract3DGraph::ElementType type); + void handleAxisDragging(); + +private: + bool m_mousePressed = false; + InputState m_state = StateNormal; + QValue3DAxis *m_axisX = nullptr; + QValue3DAxis *m_axisZ = nullptr; + QValue3DAxis *m_axisY = nullptr; + float m_speedModifier = 15.f; +}; + +#endif diff --git a/examples/datavisualization/graphgallery/bargraph.cpp b/examples/datavisualization/graphgallery/bargraph.cpp new file mode 100644 index 00000000..5873c757 --- /dev/null +++ b/examples/datavisualization/graphgallery/bargraph.cpp @@ -0,0 +1,329 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "bargraph.h" +#include "graphmodifier.h" + +#include <QtWidgets/qboxlayout.h> +#include <QtWidgets/qpushbutton.h> +#include <QtWidgets/qcheckbox.h> +#include <QtWidgets/qslider.h> +#include <QtWidgets/qfontcombobox.h> +#include <QtWidgets/qlabel.h> +#include <QtWidgets/qradiobutton.h> +#include <QtWidgets/qbuttongroup.h> +#include <QtGui/qfontdatabase.h> + +using namespace Qt::StringLiterals; + +BarGraph::BarGraph() +{ + //! [0] + m_barsGraph = new Q3DBars(); + //! [0] +} + +BarGraph::~BarGraph() = default; + +bool BarGraph::initialize(const QSize &minimumGraphSize, const QSize &maximumGraphSize) +{ + if (!m_barsGraph->hasContext()) + return false; + + //! [1] + m_barsWidget = new QWidget; + auto *hLayout = new QHBoxLayout(m_barsWidget); + m_container = QWidget::createWindowContainer(m_barsGraph, m_barsWidget); + m_barsGraph->resize(minimumGraphSize); + m_container->setMinimumSize(minimumGraphSize); + m_container->setMaximumSize(maximumGraphSize); + m_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); + m_container->setFocusPolicy(Qt::StrongFocus); + hLayout->addWidget(m_container, 1); + + auto *vLayout = new QVBoxLayout(); + hLayout->addLayout(vLayout); + //! [1] + + auto *themeList = new QComboBox(m_barsWidget); + themeList->addItem(u"Qt"_s); + themeList->addItem(u"Primary Colors"_s); + themeList->addItem(u"Digia"_s); + themeList->addItem(u"Stone Moss"_s); + themeList->addItem(u"Army Blue"_s); + themeList->addItem(u"Retro"_s); + themeList->addItem(u"Ebony"_s); + themeList->addItem(u"Isabelle"_s); + themeList->setCurrentIndex(0); + + auto *labelButton = new QPushButton(m_barsWidget); + labelButton->setText(u"Change label style"_s); + + auto *smoothCheckBox = new QCheckBox(m_barsWidget); + smoothCheckBox->setText(u"Smooth bars"_s); + smoothCheckBox->setChecked(false); + + auto *barStyleList = new QComboBox(m_barsWidget); + barStyleList->addItem(u"Bar"_s, QAbstract3DSeries::MeshBar); + barStyleList->addItem(u"Pyramid"_s, QAbstract3DSeries::MeshPyramid); + barStyleList->addItem(u"Cone"_s, QAbstract3DSeries::MeshCone); + barStyleList->addItem(u"Cylinder"_s, QAbstract3DSeries::MeshCylinder); + barStyleList->addItem(u"Bevel bar"_s, QAbstract3DSeries::MeshBevelBar); + barStyleList->addItem(u"Sphere"_s, QAbstract3DSeries::MeshSphere); + barStyleList->setCurrentIndex(4); + + auto *cameraButton = new QPushButton(m_barsWidget); + cameraButton->setText(u"Change camera preset"_s); + + auto *zoomToSelectedButton = new QPushButton(m_barsWidget); + zoomToSelectedButton->setText(u"Zoom to selected bar"_s); + + auto *selectionModeList = new QComboBox(m_barsWidget); + selectionModeList->addItem(u"None"_s, + int(QAbstract3DGraph::SelectionNone)); + selectionModeList->addItem(u"Bar"_s, + int(QAbstract3DGraph::SelectionItem)); + selectionModeList->addItem(u"Row"_s, + int(QAbstract3DGraph::SelectionRow)); + selectionModeList->addItem(u"Bar and Row"_s, + int(QAbstract3DGraph::SelectionItemAndRow)); + selectionModeList->addItem(u"Column"_s, + int(QAbstract3DGraph::SelectionColumn)); + selectionModeList->addItem(u"Bar and Column"_s, + int(QAbstract3DGraph::SelectionItemAndColumn)); + selectionModeList->addItem(u"Row and Column"_s, + int(QAbstract3DGraph::SelectionRowAndColumn)); + selectionModeList->addItem(u"Bar, Row and Column"_s, + int(QAbstract3DGraph::SelectionItemRowAndColumn)); + selectionModeList->addItem(u"Slice into Row"_s, + int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionRow)); + selectionModeList->addItem(u"Slice into Row and Item"_s, + int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionItemAndRow)); + selectionModeList->addItem(u"Slice into Column"_s, + int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionColumn)); + selectionModeList->addItem(u"Slice into Column and Item"_s, + int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionItemAndColumn)); + selectionModeList->addItem(u"Multi: Bar, Row, Col"_s, + int(QAbstract3DGraph::SelectionItemRowAndColumn + | QAbstract3DGraph::SelectionMultiSeries)); + selectionModeList->addItem(u"Multi, Slice: Row, Item"_s, + int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionItemAndRow + | QAbstract3DGraph::SelectionMultiSeries)); + selectionModeList->addItem(u"Multi, Slice: Col, Item"_s, + int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionItemAndColumn + | QAbstract3DGraph::SelectionMultiSeries)); + selectionModeList->setCurrentIndex(1); + + auto *backgroundCheckBox = new QCheckBox(m_barsWidget); + backgroundCheckBox->setText(u"Show background"_s); + backgroundCheckBox->setChecked(false); + + auto *gridCheckBox = new QCheckBox(m_barsWidget); + gridCheckBox->setText(u"Show grid"_s); + gridCheckBox->setChecked(true); + + auto *seriesCheckBox = new QCheckBox(m_barsWidget); + seriesCheckBox->setText(u"Show second series"_s); + seriesCheckBox->setChecked(false); + + auto *reverseValueAxisCheckBox = new QCheckBox(m_barsWidget); + reverseValueAxisCheckBox->setText(u"Reverse value axis"_s); + reverseValueAxisCheckBox->setChecked(false); + + auto *reflectionCheckBox = new QCheckBox(m_barsWidget); + reflectionCheckBox->setText(u"Show reflections"_s); + reflectionCheckBox->setChecked(false); + + //! [3] + auto *rotationSliderX = new QSlider(Qt::Horizontal, m_barsWidget); + rotationSliderX->setTickInterval(30); + rotationSliderX->setTickPosition(QSlider::TicksBelow); + rotationSliderX->setMinimum(-180); + rotationSliderX->setValue(0); + rotationSliderX->setMaximum(180); + //! [3] + auto *rotationSliderY = new QSlider(Qt::Horizontal, m_barsWidget); + rotationSliderY->setTickInterval(15); + rotationSliderY->setTickPosition(QSlider::TicksAbove); + rotationSliderY->setMinimum(-90); + rotationSliderY->setValue(0); + rotationSliderY->setMaximum(90); + + auto *fontSizeSlider = new QSlider(Qt::Horizontal, m_barsWidget); + fontSizeSlider->setTickInterval(10); + fontSizeSlider->setTickPosition(QSlider::TicksBelow); + fontSizeSlider->setMinimum(1); + fontSizeSlider->setValue(30); + fontSizeSlider->setMaximum(100); + + auto *fontList = new QFontComboBox(m_barsWidget); + fontList->setCurrentFont(QFont("Times New Roman")); + + auto *shadowQuality = new QComboBox(m_barsWidget); + shadowQuality->addItem(u"None"_s); + shadowQuality->addItem(u"Low"_s); + shadowQuality->addItem(u"Medium"_s); + shadowQuality->addItem(u"High"_s); + shadowQuality->addItem(u"Low Soft"_s); + shadowQuality->addItem(u"Medium Soft"_s); + shadowQuality->addItem(u"High Soft"_s); + shadowQuality->setCurrentIndex(5); + + auto *rangeList = new QComboBox(m_barsWidget); + rangeList->addItem(u"2015"_s); + rangeList->addItem(u"2016"_s); + rangeList->addItem(u"2017"_s); + rangeList->addItem(u"2018"_s); + rangeList->addItem(u"2019"_s); + rangeList->addItem(u"2020"_s); + rangeList->addItem(u"2021"_s); + rangeList->addItem(u"2022"_s); + rangeList->addItem(u"All"_s); + rangeList->setCurrentIndex(8); + + auto *axisTitlesVisibleCB = new QCheckBox(m_barsWidget); + axisTitlesVisibleCB->setText(u"Axis titles visible"_s); + axisTitlesVisibleCB->setChecked(true); + + auto *axisTitlesFixedCB = new QCheckBox(m_barsWidget); + axisTitlesFixedCB->setText(u"Axis titles fixed"_s); + axisTitlesFixedCB->setChecked(true); + + auto *axisLabelRotationSlider = new QSlider(Qt::Horizontal, m_barsWidget); + axisLabelRotationSlider->setTickInterval(10); + axisLabelRotationSlider->setTickPosition(QSlider::TicksBelow); + axisLabelRotationSlider->setMinimum(0); + axisLabelRotationSlider->setValue(30); + axisLabelRotationSlider->setMaximum(90); + + auto *modeGroup = new QButtonGroup(m_barsWidget); + auto *modeWeather = new QRadioButton(u"Temperature Data"_s, m_barsWidget); + modeWeather->setChecked(true); + auto *modeCustomProxy = new QRadioButton(u"Custom Proxy Data"_s, m_barsWidget); + modeGroup->addButton(modeWeather); + modeGroup->addButton(modeCustomProxy); + + //! [4] + vLayout->addWidget(new QLabel(u"Rotate horizontally"_s)); + vLayout->addWidget(rotationSliderX, 0, Qt::AlignTop); + //! [4] + vLayout->addWidget(new QLabel(u"Rotate vertically"_s)); + vLayout->addWidget(rotationSliderY, 0, Qt::AlignTop); + vLayout->addWidget(labelButton, 0, Qt::AlignTop); + vLayout->addWidget(cameraButton, 0, Qt::AlignTop); + vLayout->addWidget(zoomToSelectedButton, 0, Qt::AlignTop); + vLayout->addWidget(backgroundCheckBox); + vLayout->addWidget(gridCheckBox); + vLayout->addWidget(smoothCheckBox); + vLayout->addWidget(reflectionCheckBox); + vLayout->addWidget(seriesCheckBox); + vLayout->addWidget(reverseValueAxisCheckBox); + vLayout->addWidget(axisTitlesVisibleCB); + vLayout->addWidget(axisTitlesFixedCB); + vLayout->addWidget(new QLabel(u"Show year"_s)); + vLayout->addWidget(rangeList); + vLayout->addWidget(new QLabel(u"Change bar style"_s)); + vLayout->addWidget(barStyleList); + vLayout->addWidget(new QLabel(u"Change selection mode"_s)); + vLayout->addWidget(selectionModeList); + vLayout->addWidget(new QLabel(u"Change theme"_s)); + vLayout->addWidget(themeList); + vLayout->addWidget(new QLabel(u"Adjust shadow quality"_s)); + vLayout->addWidget(shadowQuality); + vLayout->addWidget(new QLabel(u"Change font"_s)); + vLayout->addWidget(fontList); + vLayout->addWidget(new QLabel(u"Adjust font size"_s)); + vLayout->addWidget(fontSizeSlider); + vLayout->addWidget(new QLabel(u"Axis label rotation"_s)); + vLayout->addWidget(axisLabelRotationSlider, 0, Qt::AlignTop); + vLayout->addWidget(modeWeather, 0, Qt::AlignTop); + vLayout->addWidget(modeCustomProxy, 1, Qt::AlignTop); + + //! [2] + auto *modifier = new GraphModifier(m_barsGraph, this); + //! [2] + + //! [5] + QObject::connect(rotationSliderX, &QSlider::valueChanged, modifier, &GraphModifier::rotateX); + //! [5] + QObject::connect(rotationSliderY, &QSlider::valueChanged, modifier, &GraphModifier::rotateY); + + QObject::connect(labelButton, &QPushButton::clicked, modifier, + &GraphModifier::changeLabelBackground); + QObject::connect(cameraButton, &QPushButton::clicked, modifier, + &GraphModifier::changePresetCamera); + QObject::connect(zoomToSelectedButton, &QPushButton::clicked, modifier, + &GraphModifier::zoomToSelectedBar); + + QObject::connect(backgroundCheckBox, &QCheckBox::stateChanged, modifier, + &GraphModifier::setBackgroundEnabled); + QObject::connect(gridCheckBox, &QCheckBox::stateChanged, modifier, + &GraphModifier::setGridEnabled); + QObject::connect(smoothCheckBox, &QCheckBox::stateChanged, modifier, + &GraphModifier::setSmoothBars); + QObject::connect(seriesCheckBox, &QCheckBox::stateChanged, modifier, + &GraphModifier::setSeriesVisibility); + QObject::connect(reverseValueAxisCheckBox, &QCheckBox::stateChanged, modifier, + &GraphModifier::setReverseValueAxis); + QObject::connect(reflectionCheckBox, &QCheckBox::stateChanged, modifier, + &GraphModifier::setReflection); + + QObject::connect(modifier, &GraphModifier::backgroundEnabledChanged, + backgroundCheckBox, &QCheckBox::setChecked); + QObject::connect(modifier, &GraphModifier::gridEnabledChanged, + gridCheckBox, &QCheckBox::setChecked); + + QObject::connect(rangeList, &QComboBox::currentIndexChanged, modifier, + &GraphModifier::changeRange); + + QObject::connect(barStyleList, &QComboBox::currentIndexChanged, modifier, + &GraphModifier::changeStyle); + + QObject::connect(selectionModeList, &QComboBox::currentIndexChanged, modifier, + &GraphModifier::changeSelectionMode); + + QObject::connect(themeList, &QComboBox::currentIndexChanged, modifier, + &GraphModifier::changeTheme); + + QObject::connect(shadowQuality, &QComboBox::currentIndexChanged, modifier, + &GraphModifier::changeShadowQuality); + + QObject::connect(modifier, &GraphModifier::shadowQualityChanged, shadowQuality, + &QComboBox::setCurrentIndex); + QObject::connect(m_barsGraph, &Q3DBars::shadowQualityChanged, modifier, + &GraphModifier::shadowQualityUpdatedByVisual); + + QObject::connect(fontSizeSlider, &QSlider::valueChanged, modifier, + &GraphModifier::changeFontSize); + QObject::connect(fontList, &QFontComboBox::currentFontChanged, modifier, + &GraphModifier::changeFont); + + QObject::connect(modifier, &GraphModifier::fontSizeChanged, fontSizeSlider, + &QSlider::setValue); + QObject::connect(modifier, &GraphModifier::fontChanged, fontList, + &QFontComboBox::setCurrentFont); + + QObject::connect(axisTitlesVisibleCB, &QCheckBox::stateChanged, modifier, + &GraphModifier::setAxisTitleVisibility); + QObject::connect(axisTitlesFixedCB, &QCheckBox::stateChanged, modifier, + &GraphModifier::setAxisTitleFixed); + QObject::connect(axisLabelRotationSlider, &QSlider::valueChanged, modifier, + &GraphModifier::changeLabelRotation); + + QObject::connect(modeWeather, &QRadioButton::toggled, modifier, + &GraphModifier::setDataModeToWeather); + QObject::connect(modeCustomProxy, &QRadioButton::toggled, modifier, + &GraphModifier::setDataModeToCustom); + QObject::connect(modeWeather, &QRadioButton::toggled, seriesCheckBox, + &QCheckBox::setEnabled); + QObject::connect(modeWeather, &QRadioButton::toggled, rangeList, + &QComboBox::setEnabled); + QObject::connect(modeWeather, &QRadioButton::toggled, axisTitlesVisibleCB, + &QCheckBox::setEnabled); + QObject::connect(modeWeather, &QRadioButton::toggled, axisTitlesFixedCB, + &QCheckBox::setEnabled); + QObject::connect(modeWeather, &QRadioButton::toggled, axisLabelRotationSlider, + &QSlider::setEnabled); + + return true; +} diff --git a/examples/datavisualization/graphgallery/bargraph.h b/examples/datavisualization/graphgallery/bargraph.h new file mode 100644 index 00000000..004c14eb --- /dev/null +++ b/examples/datavisualization/graphgallery/bargraph.h @@ -0,0 +1,26 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef BARGRAPH_H +#define BARGRAPH_H + +#include <QtDataVisualization/q3dbars.h> +#include <QtCore/qobject.h> + +class BarGraph : public QObject +{ + Q_OBJECT +public: + BarGraph(); + ~BarGraph(); + + bool initialize(const QSize &minimumGraphSize, const QSize &maximumGraphSize); + QWidget *barsWidget() { return m_barsWidget; } + +private: + Q3DBars *m_barsGraph = nullptr; + QWidget *m_container = nullptr; + QWidget *m_barsWidget = nullptr; +}; + +#endif diff --git a/examples/datavisualization/graphgallery/custominputhandler.cpp b/examples/datavisualization/graphgallery/custominputhandler.cpp new file mode 100644 index 00000000..f9f06871 --- /dev/null +++ b/examples/datavisualization/graphgallery/custominputhandler.cpp @@ -0,0 +1,161 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "custominputhandler.h" + +#include <QtDataVisualization/q3dcamera.h> +#include <QtCore/qmath.h> + +CustomInputHandler::CustomInputHandler(QAbstract3DGraph *graph, QObject *parent) : + Q3DInputHandler(parent) +{ + // Connect to the item selection signal from graph + connect(graph, &QAbstract3DGraph::selectedElementChanged, this, + &CustomInputHandler::handleElementSelected); +} + +void CustomInputHandler::mousePressEvent(QMouseEvent *event, const QPoint &mousePos) +{ + if (Qt::LeftButton == event->button()) { + m_highlight->setVisible(false); + m_mousePressed = true; + } + Q3DInputHandler::mousePressEvent(event, mousePos); +} + +//! [1] +void CustomInputHandler::wheelEvent(QWheelEvent *event) +{ + float delta = float(event->angleDelta().y()); + + m_axisXMinValue += delta; + m_axisXMaxValue -= delta; + m_axisZMinValue += delta; + m_axisZMaxValue -= delta; + checkConstraints(); + + float y = (m_axisXMaxValue - m_axisXMinValue) * m_aspectRatio; + + m_axisX->setRange(m_axisXMinValue, m_axisXMaxValue); + m_axisY->setRange(100.f, y); + m_axisZ->setRange(m_axisZMinValue, m_axisZMaxValue); +} +//! [1] + +void CustomInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos) +{ + // Check if we're trying to drag axis label + if (m_mousePressed && m_state != StateNormal) { + setPreviousInputPos(inputPosition()); + setInputPosition(mousePos); + handleAxisDragging(); + } else { + Q3DInputHandler::mouseMoveEvent(event, mousePos); + } +} + +void CustomInputHandler::mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos) +{ + Q3DInputHandler::mouseReleaseEvent(event, mousePos); + m_mousePressed = false; + m_state = StateNormal; +} + +void CustomInputHandler::handleElementSelected(QAbstract3DGraph::ElementType type) +{ + switch (type) { + case QAbstract3DGraph::ElementAxisXLabel: + m_state = StateDraggingX; + break; + case QAbstract3DGraph::ElementAxisZLabel: + m_state = StateDraggingZ; + break; + default: + m_state = StateNormal; + break; + } +} + +void CustomInputHandler::handleAxisDragging() +{ + float distance = 0.f; + + // Get scene orientation from active camera + float xRotation = scene()->activeCamera()->xRotation(); + + // Calculate directional drag multipliers based on rotation + float xMulX = qCos(qDegreesToRadians(xRotation)); + float xMulY = qSin(qDegreesToRadians(xRotation)); + float zMulX = qSin(qDegreesToRadians(xRotation)); + float zMulY = qCos(qDegreesToRadians(xRotation)); + + // Get the drag amount + QPoint move = inputPosition() - previousInputPos(); + + // Adjust axes + switch (m_state) { + //! [0] + case StateDraggingX: + distance = (move.x() * xMulX - move.y() * xMulY) * m_speedModifier; + m_axisXMinValue -= distance; + m_axisXMaxValue -= distance; + if (m_axisXMinValue < m_areaMinValue) { + float dist = m_axisXMaxValue - m_axisXMinValue; + m_axisXMinValue = m_areaMinValue; + m_axisXMaxValue = m_axisXMinValue + dist; + } + if (m_axisXMaxValue > m_areaMaxValue) { + float dist = m_axisXMaxValue - m_axisXMinValue; + m_axisXMaxValue = m_areaMaxValue; + m_axisXMinValue = m_axisXMaxValue - dist; + } + m_axisX->setRange(m_axisXMinValue, m_axisXMaxValue); + break; + //! [0] + case StateDraggingZ: + distance = (move.x() * zMulX + move.y() * zMulY) * m_speedModifier; + m_axisZMinValue += distance; + m_axisZMaxValue += distance; + if (m_axisZMinValue < m_areaMinValue) { + float dist = m_axisZMaxValue - m_axisZMinValue; + m_axisZMinValue = m_areaMinValue; + m_axisZMaxValue = m_axisZMinValue + dist; + } + if (m_axisZMaxValue > m_areaMaxValue) { + float dist = m_axisZMaxValue - m_axisZMinValue; + m_axisZMaxValue = m_areaMaxValue; + m_axisZMinValue = m_axisZMaxValue - dist; + } + m_axisZ->setRange(m_axisZMinValue, m_axisZMaxValue); + break; + default: + break; + } +} + +void CustomInputHandler::checkConstraints() +{ + //! [2] + if (m_axisXMinValue < m_areaMinValue) + m_axisXMinValue = m_areaMinValue; + if (m_axisXMaxValue > m_areaMaxValue) + m_axisXMaxValue = m_areaMaxValue; + // Don't allow too much zoom in + if ((m_axisXMaxValue - m_axisXMinValue) < m_axisXMinRange) { + float adjust = (m_axisXMinRange - (m_axisXMaxValue - m_axisXMinValue)) / 2.f; + m_axisXMinValue -= adjust; + m_axisXMaxValue += adjust; + } + //! [2] + + if (m_axisZMinValue < m_areaMinValue) + m_axisZMinValue = m_areaMinValue; + if (m_axisZMaxValue > m_areaMaxValue) + m_axisZMaxValue = m_areaMaxValue; + // Don't allow too much zoom in + if ((m_axisZMaxValue - m_axisZMinValue) < m_axisZMinRange) { + float adjust = (m_axisZMinRange - (m_axisZMaxValue - m_axisZMinValue)) / 2.f; + m_axisZMinValue -= adjust; + m_axisZMaxValue += adjust; + } +} diff --git a/examples/datavisualization/graphgallery/custominputhandler.h b/examples/datavisualization/graphgallery/custominputhandler.h new file mode 100644 index 00000000..a28b5851 --- /dev/null +++ b/examples/datavisualization/graphgallery/custominputhandler.h @@ -0,0 +1,76 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef CUSTOMINPUTHANDLER_H +#define CUSTOMINPUTHANDLER_H + +#include "highlightseries.h" + +#include <QtDataVisualization/q3dinputhandler.h> +#include <QtDataVisualization/qabstract3dgraph.h> +#include <QtDataVisualization/qvalue3daxis.h> + +class CustomInputHandler : public Q3DInputHandler +{ + Q_OBJECT + + enum InputState { + StateNormal = 0, + StateDraggingX, + StateDraggingZ, + StateDraggingY + }; + +public: + explicit CustomInputHandler(QAbstract3DGraph *graph, QObject *parent = 0); + + inline void setLimits(float min, float max, float minRange) { + m_areaMinValue = min; + m_areaMaxValue = max; + m_axisXMinValue = m_areaMinValue; + m_axisXMaxValue = m_areaMaxValue; + m_axisZMinValue = m_areaMinValue; + m_axisZMaxValue = m_areaMaxValue; + m_axisXMinRange = minRange; + m_axisZMinRange = minRange; + } + inline void setAxes(QValue3DAxis *axisX, QValue3DAxis *axisY, QValue3DAxis *axisZ) { + m_axisX = axisX; + m_axisY = axisY; + m_axisZ = axisZ; + } + inline void setAspectRatio(float ratio) { m_aspectRatio = ratio; } + inline void setHighlightSeries(HighlightSeries *series) { m_highlight = series; } + inline void setDragSpeedModifier(float modifier) { m_speedModifier = modifier; } + +protected: + virtual void mousePressEvent(QMouseEvent *event, const QPoint &mousePos); + virtual void mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos); + virtual void mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos); + virtual void wheelEvent(QWheelEvent *event); + +private: + void handleElementSelected(QAbstract3DGraph::ElementType type); + void handleAxisDragging(); + void checkConstraints(); + +private: + HighlightSeries *m_highlight = nullptr; + bool m_mousePressed = false; + InputState m_state = StateNormal; + QValue3DAxis *m_axisX = nullptr; + QValue3DAxis *m_axisY = nullptr; + QValue3DAxis *m_axisZ = nullptr; + float m_speedModifier = 20.f; + float m_aspectRatio = 0.f; + float m_axisXMinValue = 0.f; + float m_axisXMaxValue = 0.f; + float m_axisXMinRange = 0.f; + float m_axisZMinValue = 0.f; + float m_axisZMaxValue = 0.f; + float m_axisZMinRange = 0.f; + float m_areaMinValue = 0.f; + float m_areaMaxValue = 0.f; +}; + +#endif diff --git a/examples/datavisualization/graphgallery/data/layer_1.png b/examples/datavisualization/graphgallery/data/layer_1.png Binary files differnew file mode 100644 index 00000000..9138c710 --- /dev/null +++ b/examples/datavisualization/graphgallery/data/layer_1.png diff --git a/examples/datavisualization/graphgallery/data/layer_2.png b/examples/datavisualization/graphgallery/data/layer_2.png Binary files differnew file mode 100644 index 00000000..61631ae8 --- /dev/null +++ b/examples/datavisualization/graphgallery/data/layer_2.png diff --git a/examples/datavisualization/graphgallery/data/layer_3.png b/examples/datavisualization/graphgallery/data/layer_3.png Binary files differnew file mode 100644 index 00000000..066ffbe7 --- /dev/null +++ b/examples/datavisualization/graphgallery/data/layer_3.png diff --git a/examples/datavisualization/graphgallery/data/license.txt b/examples/datavisualization/graphgallery/data/license.txt new file mode 100644 index 00000000..749daf31 --- /dev/null +++ b/examples/datavisualization/graphgallery/data/license.txt @@ -0,0 +1,77 @@ +License information regarding the data obtained from National Land Survey of +Finland http://www.maanmittauslaitos.fi/en +- topographic model from Elevation model 2 m (U4421B, U4421D, U4422A and + U4422C) 08/2014 +- map image extracted from Topographic map raster 1:50 000 (U442) 08/2014 + +National Land Survey open data licence - version 1.0 - 1 May 2012 + +1. General information + +The National Land Survey of Finland (hereinafter the Licensor), as the holder +of the immaterial rights to the data, has granted on the terms mentioned below +the right to use a copy (hereinafter data or dataset(s)) of the data (or a part +of it). + +The Licensee is a natural or legal person who makes use of the data covered by +this licence. The Licensee accepts the terms of this licence by receiving the +dataset(s) covered by the licence. + +This Licence agreement does not create a co-operation or business relationship +between the Licensee and the Licensor. + +2. Terms of the licence + +2.1. Right of use + +This licence grants a worldwide, free of charge and irrevocable parallel right +of use to open data. According to the terms of the licence, data received by +the Licensee can be freely: + - copied, distributed and published, + - modified and utilised commercially and non-commercially, + - inserted into other products and + - used as a part of a software application or service. + +2.2. Duties and responsibilities of the Licensee + +Through reasonable means suitable to the distribution medium or method which is +used in conjunction with a product containing data or a service utilising data +covered by this licence or while distributing data, the Licensee shall: + - mention the name of the Licensor, the name of the dataset(s) and the time + when the National Land Survey has delivered the dataset(s) (e.g.: contains + data from the National Land Survey of Finland Topographic Database 06/2012) + - provide a copy of this licence or a link to it, as well as + - require third parties to provide the same information when granting rights + to copies of dataset(s) or products and services containing such data and + - remove the name of the Licensor from the product or service, if required to + do so by the Licensor. + +The terms of this licence do not allow the Licensee to state in conjunction +with the use of dataset(s) that the Licensor supports or recommends such use. + +2.3. Duties and responsibilities of the Licensor + +The Licensor shall ensure that + - the Licensor has the right to grant rights to the dataset(s) in accordance + with this licence. + +The data has been licensed "as is" and the Licensor + - shall not be held responsible for any errors or omissions in the data, + disclaims any warranty for the validity or up to date status of the data and + shall be free from liability for direct or consequential damages arising + from the use of data provided by the Licensor, + - and is not obligated to ensure the continuous availability of the data, nor + to announce in advance the interruption or cessation of availability, and + the Licensor shall be free from liability for direct or consequential + damages arising from any such interruption or cessation. + +3. Jurisdiction + +Finnish law shall apply to this licence. + +4. Changes to this licence + +The Licensor may at any time change the terms of the licence or apply a +different licence to the data. The terms of this licence shall, however, still +apply to such data that has been received prior to the change of the terms of +the licence or the licence itself. diff --git a/examples/datavisualization/graphgallery/data/maptexture.jpg b/examples/datavisualization/graphgallery/data/maptexture.jpg Binary files differnew file mode 100644 index 00000000..ae5d66eb --- /dev/null +++ b/examples/datavisualization/graphgallery/data/maptexture.jpg diff --git a/examples/datavisualization/graphgallery/data/oilrig.obj b/examples/datavisualization/graphgallery/data/oilrig.obj new file mode 100644 index 00000000..c3b6ea57 --- /dev/null +++ b/examples/datavisualization/graphgallery/data/oilrig.obj @@ -0,0 +1,2322 @@ +# Blender v2.66 (sub 0) OBJ File: 'oilrig.blend' +# www.blender.org +v 0.057462 2.272318 -1.170324 +v 0.057461 8.181165 -0.128434 +v 0.055540 2.268930 -1.151111 +v 0.055539 8.177776 -0.109221 +v 0.049849 2.265673 -1.132637 +v 0.049849 8.174520 -0.090747 +v 0.040608 2.262671 -1.115611 +v 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6/68/5 +f 12/102/11 10/103/9 8/104/7 +f 6/68/5 12/102/11 8/104/7 +f 64/70/63 2/2/2 1/1/1 +f 62/71/64 64/70/63 63/69/62 diff --git a/examples/datavisualization/graphgallery/data/raindata.txt b/examples/datavisualization/graphgallery/data/raindata.txt new file mode 100644 index 00000000..d9558921 --- /dev/null +++ b/examples/datavisualization/graphgallery/data/raindata.txt @@ -0,0 +1,158 @@ +# Rainfall per month from 2010 to 2022 in Northern Finland (Oulu) +# Format: year, month, rainfall +2010,1, 0, +2010,2, 3.4, +2010,3, 52, +2010,4, 33.8, +2010,5, 45.6, +2010,6, 43.8, +2010,7, 104.6, +2010,8, 105.4, +2010,9, 107.2, +2010,10,38.6, +2010,11,17.8, +2010,12,0, +2011,1, 8.2, +2011,2, 1.6, +2011,3, 27.4, +2011,4, 15.8, +2011,5, 57.6, +2011,6, 85.2, +2011,7, 127, +2011,8, 72.2, +2011,9, 82.2, +2011,10,62.4, +2011,11,31.6, +2011,12,53.8, +2012,1, 0, +2012,2, 5, +2012,3, 32.4, +2012,4, 57.6, +2012,5, 71.4, +2012,6, 60.8, +2012,7, 109, +2012,8, 43.6, +2012,9, 79.4, +2012,10,117.2, +2012,11,59, +2012,12,0.2, +2013,1, 28, +2013,2, 19, +2013,3, 0, +2013,4, 37.6, +2013,5, 44.2, +2013,6, 104.8, +2013,7, 84.2, +2013,8, 57.2, +2013,9, 37.2, +2013,10,64.6, +2013,11,77.8, +2013,12,92.8, +2014,1, 23.8, +2014,2, 23.6, +2014,3, 15.4, +2014,4, 13.2, +2014,5, 36.4, +2014,6, 26.4, +2014,7, 95.8, +2014,8, 81.8, +2014,9, 13.8, +2014,10,94.6, +2014,11,44.6, +2014,12,31, +2015,1, 37.4, +2015,2, 21, +2015,3, 42, +2015,4, 8.8, +2015,5, 82.4, +2015,6, 150, +2015,7, 56.8, +2015,8, 67.2, +2015,9, 131.2, +2015,10,38.4, +2015,11,83.4, +2015,12,47.8, +2016,1, 12.4, +2016,2, 34.8, +2016,3, 29, +2016,4, 40.4, +2016,5, 32.4, +2016,6, 80.2, +2016,7, 102.6, +2016,8, 95.6, +2016,9, 40.2, +2016,10,7.8, +2016,11,39.6, +2016,12,8.8, +2017,1, 9.4, +2017,2, 6.6, +2017,3, 29, +2017,4, 46.2, +2017,5, 43.2, +2017,6, 25.2, +2017,7, 72.4, +2017,8, 58.8, +2017,9, 68.8, +2017,10,45.8, +2017,11,36.8, +2017,12,29.6, +2018,1, 19.8, +2018,2, 0.8, +2018,3, 4, +2018,4, 23.2, +2018,5, 13.2, +2018,6, 62.8, +2018,7, 33, +2018,8, 96.6, +2018,9, 72.6, +2018,10,48.8, +2018,11,31.8, +2018,12,12.8, +2019,1, 0.2, +2019,2, 24.8, +2019,3, 32, +2019,4, 8.8, +2019,5, 71.4, +2019,6, 65.8, +2019,7, 17.6, +2019,8, 90, +2019,9, 50, +2019,10,77, +2019,11,27, +2019,12,43.2, +2020,1, 28.8, +2020,2, 45, +2020,3, 18.6, +2020,4, 13, +2020,5, 30.8, +2020,6, 21.4, +2020,7, 163.6, +2020,8, 12, +2020,9, 102.4, +2020,10,133.2, +2020,11,69.8, +2020,12,40.6, +2021,1, 0.4, +2021,2, 21.6, +2021,3, 24, +2021,4, 51.4, +2021,5, 76.4, +2021,6, 29.2, +2021,7, 36.4, +2021,8, 116, +2021,9, 72.4, +2021,10,93.4, +2021,11,21, +2021,12,10.2, +2022,1, 8.6, +2022,2, 6.6, +2022,3, 5.2, +2022,4, 15.2, +2022,5, 37.6, +2022,6, 45, +2022,7, 67.4, +2022,8, 161.6, +2022,9, 22.8, +2022,10,75.2, +2022,11,21.8, +2022,12,0.2 diff --git a/examples/datavisualization/graphgallery/data/refinery.obj b/examples/datavisualization/graphgallery/data/refinery.obj new file mode 100644 index 00000000..ed90c361 --- /dev/null +++ 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a/examples/datavisualization/graphgallery/doc/images/graphgallery-example.png b/examples/datavisualization/graphgallery/doc/images/graphgallery-example.png Binary files differnew file mode 100644 index 00000000..f3320c8e --- /dev/null +++ b/examples/datavisualization/graphgallery/doc/images/graphgallery-example.png diff --git a/examples/datavisualization/graphgallery/doc/src/graphgallery.qdoc b/examples/datavisualization/graphgallery/doc/src/graphgallery.qdoc new file mode 100644 index 00000000..ff7761d2 --- /dev/null +++ b/examples/datavisualization/graphgallery/doc/src/graphgallery.qdoc @@ -0,0 +1,705 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only + +/*! + \example graphgallery + \meta tags {DataVisualization, Q3DBars, Bar Graph, Custom Proxy, Q3DScatter, Scatter Graph, Custom Input Handler, Q3DSurface, Surface Graph, QCustom3DItem, Textured Surface} + \title Graph Gallery + \ingroup qtdatavisualization_examples + \brief Gallery of Bar, Scatter, and Surface graphs. + + \e {Graph Gallery} demonstrates all three graph types and some of their special features. + The graphs have their own tabs in the application. + + \image graphgallery-example.png + + \include examples-run.qdocinc + + \section1 Bar Graph + + In the \uicontrol {Bar Graph} tab, create a 3D bar graph using Q3DBars and combine the use of + widgets to adjust various bar graph qualities. The example shows how to: + + \list + \li Create an application with Q3DBars and some widgets + \li Use QBar3DSeries and QBarDataProxy to set data to the graph + \li Adjust some graph and series properties using widget controls + \li Select a row or a column by clicking an axis label + \li Create a custom proxy to use with Q3DBars + \endlist + + For information about interacting with the graph, see + \l{Qt Data Visualization Interacting with Data}{this page}. + + \section2 Creating the Application + + First, in \c{bargraph.cpp}, instantiate Q3DBars: + + \snippet graphgallery/bargraph.cpp 0 + + Then, create the widget, and horizontal and vertical layouts. + + The graph is embedded in a window container using + QWidget::createWindowContainer(). This is required because all data + visualization graph classes (Q3DBars, Q3DScatter, Q3DSurface) inherit + QWindow. This is the only way to use a class inheriting QWindow as a widget. + + Add the graph and the vertical layout to the + horizontal one: + + \snippet graphgallery/bargraph.cpp 1 + + Next, create another class to handle the data addition and other interaction with the + graph: + + \snippet graphgallery/bargraph.cpp 2 + + \section2 Setting up the Bar Graph + + Set up the graph in the constructor of the \c GraphModifier class: + + \snippet graphgallery/graphmodifier.cpp 0 + + First, create the axes and the series into member variables to support changing them easily: + + \snippet graphgallery/graphmodifier.cpp 1 + + Then, set some visual qualities for the graph: + + \snippet graphgallery/graphmodifier.cpp 2 + + Set up the axes and make them the active axes of the graph: + + \snippet graphgallery/graphmodifier.cpp 3 + + Give axis labels a small autorotation angle with setLabelAutoRotation() to make them orient + slightly toward the camera. This improves axis label readability at extreme camera angles. + + Next, initialize the visual properties of the series. Note that the second series is initially + not visible: + + \snippet graphgallery/graphmodifier.cpp 4 + + Add the series to the graph: + + \snippet graphgallery/graphmodifier.cpp 5 + + Finally, set the camera angle by calling the same method the camera angle change button + in the UI uses to cycle through various camera angles: + + \snippet graphgallery/graphmodifier.cpp 6 + + The camera is controlled via the scene object of the graph: + + \snippet graphgallery/graphmodifier.cpp 7 + + For more information about using scene and cameras, see Q3DScene and Q3DCamera. + + \section2 Adding Data to the Graph + + At the end of the constructor, call a method that sets up the data: + + \snippet graphgallery/graphmodifier.cpp 8 + + This method adds data to the proxies of the two series: + + \snippet graphgallery/graphmodifier.cpp 9a + \dots 0 + \snippet graphgallery/graphmodifier.cpp 9b + + \section2 Using Widgets to Control the Graph + + Continue by adding some widgets in \c{bargraph.cpp}. Add a slider: + + \snippet graphgallery/bargraph.cpp 3 + + Use the slider to rotate the graph instead of just using a mouse or touch. Add it to the + vertical layout: + + \snippet graphgallery/bargraph.cpp 4 + + Then, connect it to a method in \c GraphModifier: + + \snippet graphgallery/bargraph.cpp 5 + + Create a slot in \c GraphModifier for the signal connection. The camera is controlled via the + scene object. This time, specify the actual camera position along the orbit around the center + point, instead of specifying a preset camera angle: + + \snippet graphgallery/graphmodifier.cpp 10 + + You can now use the slider to rotate the graph. + + Add more widgets to the vertical layout to control: + + \list + \li Graph rotation + \li Label style + \li Camera preset + \li Background visibility + \li Grid visibility + \li Bar shading smoothness + \li Visibility of the second bar series + \li Value axis direction + \li Axis title visibility and rotation + \li Data range to be shown + \li Bar style + \li Selection mode + \li Theme + \li Shadow quality + \li Font + \li Font size + \li Axis label rotation + \li Data mode + \endlist + + Some widget controls are intentionally disabled when in the \uicontrol {Custom Proxy Data} + data mode. + + \section2 Selecting a Row or Column by Clicking an Axis Label + + Selection by axis label is default functionality for bar graphs. As an example, you can select + rows by clicking an axis label in the following way: + + \list 1 + \li Change selection mode to \c SelectionRow + \li Click a year label + \li The row with the clicked year is selected + \endlist + + The same method works with \c SelectionSlice and \c SelectionItem flags, as long as + either \c SelectionRow or \c SelectionColumn is set as well. + + \section2 Zooming to Selection + + As an example of adjusting the camera target, implement an animation of zooming to + selection via a button press. Animation initializations are done in the constructor: + + \snippet graphgallery/graphmodifier.cpp 11 + + Function \c{GraphModifier::zoomToSelectedBar()} contains the zooming functionality. + QPropertyAnimation \c m_animationCameraTarget targets Q3DCamera::target property, + which takes a value normalized to the range (-1, 1). + + Figure out where the selected bar is relative to axes, and use that as the end value for + \c{m_animationCameraTarget}: + + \snippet graphgallery/graphmodifier.cpp 12 + \dots 0 + \snippet graphgallery/graphmodifier.cpp 13 + + Then, rotate the camera so that it always points approximately to the center of + the graph at the end of the animation: + + \snippet graphgallery/graphmodifier.cpp 14 + + \section2 Custom Proxy for Data + + By toggling \uicontrol {Custom Proxy Data} data mode on, a custom dataset and the corresponding + proxy are taken into use. + + Define a simple flexible data set, \c{VariantDataSet}, where each data item is + a variant list. Each item can have multiple values, identified by their index in + the list. In this case, the data set is storing monthly rainfall data, where the value in + index zero is the year, the value in index one is the month, and the value in index two is + the amount of rainfall in that month. + + The custom proxy is similar to itemmodel-based proxies provided by Qt Data Visualization, and + it requires mapping to interpret the data. + + \section3 VariantDataSet + + Define the data items as QVariantList objects. Add functionality for clearing the data set and + querying for a reference to the data contained in the set. Also, add signals to be emitted when + data is added or the set is cleared: + + \snippet graphgallery/variantdataset.h 0 + \dots 0 + \codeline + \snippet graphgallery/variantdataset.h 1 + + \section3 VariantBarDataProxy + + Subclass \c VariantBarDataProxy from QBarDataProxy and provide a simple API of getters and + setters for the data set and the mapping: + + \snippet graphgallery/variantbardataproxy.h 0 + \dots 0 + \codeline + \snippet graphgallery/variantbardataproxy.h 1 + + The proxy listens for the changes in the data set and the mapping, and resolves the data set + if any changes are detected. This is not a particularly efficient implementation, as any change + will cause re-resolving of the entire data set, but that is not an issue for this example. + + In \c resolveDataSet() method, sort the variant data values into rows and columns based on the + mapping. This is very similar to how QItemModelBarDataProxy handles mapping, except you use + list indexes instead of item model roles here. Once the values are sorted, generate + \c QBarDataArray out of them, and call the \c resetArray() method in the parent class: + + \snippet graphgallery/variantbardataproxy.cpp 0 + + \section3 VariantBarDataMapping + + Store the mapping information between \c VariantDataSet data item indexes and rows, columns, + and values of \c QBarDataArray in \c VariantBarDataMapping. It contains the lists of rows and + columns to be included in the resolved data: + + \snippet graphgallery/variantbardatamapping.h 0 + \dots 0 + \codeline + \snippet graphgallery/variantbardatamapping.h 1 + \dots 0 + \codeline + \snippet graphgallery/variantbardatamapping.h 2 + \dots 0 + \codeline + \snippet graphgallery/variantbardatamapping.h 3 + + The primary way to use a \c VariantBarDataMapping object is to give the mappings in the + constructor, though you can use the \c remap() method to set them later, either individually or + all together. Emit a signal if mapping changes. The outcome is a simplified version of the + mapping functionality of QItemModelBarDataProxy, adapted to work with variant lists instead of + item models. + + \section3 RainfallData + + Handle the setup of QBar3DSeries with the custom proxy in the \c RainfallData class: + + \snippet graphgallery/rainfalldata.cpp 0 + + Populate the variant data set in the \c addDataSet() method: + + \snippet graphgallery/rainfalldata.cpp 1 + \dots + + Add the data set to the custom proxy and set the mapping: + + \snippet graphgallery/rainfalldata.cpp 2 + + Finally, add a function for getting the created series for displaying: + + \snippet graphgallery/rainfalldata.h 0 + + \section1 Scatter Graph + + In the \uicontrol {Scatter Graph} tab, create a 3D scatter graph using Q3DScatter. + The example shows how to: + + \list + \li Set up Q3DScatter graph + \li Use QScatterDataProxy to set data to the graph + \li Create a custom input handler by extending Q3DInputHandler + \endlist + + For basic application creation, see \l {Bar Graph}. + + \section2 Setting up the Scatter Graph + + First, set up some visual qualities for the graph in the constructor of the + \c ScatterDataModifier: + + \snippet graphgallery/scatterdatamodifier.cpp 0 + + None of these are mandatory, but are used to override graph defaults. You can try how it looks + with the preset defaults by commenting out the block above. + + Next, create a QScatterDataProxy and the associated QScatter3DSeries. Set a custom label format + and mesh smoothing for the series and add it to the graph: + + \snippet graphgallery/scatterdatamodifier.cpp 1 + + \section2 Adding Scatter Data + + The last thing to do in the \c ScatterDataModifier constructor is to add data to the graph: + + \snippet graphgallery/scatterdatamodifier.cpp 2 + + The actual data addition is done in \c addData() method. First, configure the axes: + + \snippet graphgallery/scatterdatamodifier.cpp 3 + + You could do this also in the constructor of \c {ScatterDataModifier}. Doing it here + keeps the constructor simpler and the axes' configuration near the data. + + Next, create a data array and populate it: + + \snippet graphgallery/scatterdatamodifier.cpp 4 + \dots + \snippet graphgallery/scatterdatamodifier.cpp 5 + + Finally, tell the proxy to start using the data we gave it: + + \snippet graphgallery/scatterdatamodifier.cpp 6 + + Now, the graph has the data and is ready for use. For information about adding widgets + to control the graph, see \l {Using Widgets to Control the Graph}. + + \section2 Replacing Default Input Handling + + Initialize \c m_inputHandler in the constructor with a pointer to the scatter graph instance: + + \snippet graphgallery/scatterdatamodifier.cpp 7 + + Replace the default input handling mechanism by setting the active input handler of + Q3DScatter to \c {AxesInputHandler}, which implements the custom behavior: + + \snippet graphgallery/scatterdatamodifier.cpp 8 + + The input handler needs access to the axes of the graph, so pass them to it: + + \snippet graphgallery/scatterdatamodifier.cpp 9 + + \section2 Extending Mouse Event Handling + + First, inherit the custom input handler from Q3DInputHandler instead of QAbstract3DInputHandler + to keep all the functionality of the default input handling, and to add the custom + functionality on top of it: + + \snippet graphgallery/axesinputhandler.h 0 + + Start extending the default functionality by re-implementing some of the mouse events. + First, extend \c {mousePressEvent}. Add a \c{m_mousePressed} flag for the left mouse button + to it, and keep the rest of the default functionality: + + \snippet graphgallery/axesinputhandler.cpp 0 + + Next, modify \c mouseReleaseEvent to clear the flag, and reset the internal state: + + \snippet graphgallery/axesinputhandler.cpp 1 + + Then, modify \c {mouseMoveEvent}. Check if \c m_mousePressed flag is \c {true} and + the internal state is something other than \c StateNormal. If so, set the input positions + for mouse movement distance calculations, and call the axis dragging function (see + \l {Implementing Axis Dragging} for details): + + \snippet graphgallery/axesinputhandler.cpp 2 + + \section2 Implementing Axis Dragging + + First, start listening to the selection signal from the graph. Do that in the + constructor, and connect it to the \c handleElementSelected method: + + \snippet graphgallery/axesinputhandler.cpp 3 + + In \c {handleElementSelected}, check the type of the selection, and set the internal state + based on it: + + \snippet graphgallery/axesinputhandler.cpp 4 + + The actual dragging logic is implemented in the \c handleAxisDragging method, which is called + from \c {mouseMoveEvent}, if the required conditions are met: + + \snippet graphgallery/axesinputhandler.cpp 5 + + In \c {handleAxisDragging}, first get the scene orientation from the active camera: + + \snippet graphgallery/axesinputhandler.cpp 6 + + Then, calculate the modifiers for mouse movement direction based on the orientation: + + \snippet graphgallery/axesinputhandler.cpp 7 + + After that, calculate the mouse movement, and modify it based on the y rotation of the + camera: + + \snippet graphgallery/axesinputhandler.cpp 8 + + Then, apply the moved distance to the correct axis: + + \snippet graphgallery/axesinputhandler.cpp 9 + + Finally, add a function for setting the dragging speed: + + \snippet graphgallery/axesinputhandler.h 1 + + This is needed, as the mouse movement distance is absolute in screen coordinates, and you + need to adjust it to the axis range. The larger the value, the slower the dragging will be. + Note that in this example, the scene zoom level is not taken into account when determining the + drag speed, so you'll notice changes in the range adjustment as you change the zoom level. + + You could also adjust the modifier automatically based on the axis range and camera zoom level. + + \section1 Surface Graph + + In the \uicontrol {Surface Graph} tab, create a 3D surface graph using Q3DSurface. + The example shows how to: + + \list + \li Set up a basic QSurfaceDataProxy and set data for it. + \li Use QHeightMapSurfaceDataProxy for showing 3D height maps. + \li Use topographic data to create 3D height maps. + \li Use three different selection modes for studying the graph. + \li Use axis ranges to display selected portions of the graph. + \li Set a custom surface gradient. + \li Add custom items and labels with QCustom3DItem and QCustom3DLabel. + \li Use custom input handler to enable zooming and panning. + \li Highlight an area of the surface. + \endlist + + For basic application creation, see \l {Bar Graph}. + + \section2 Simple Surface with Generated Data + + First, instantiate a new QSurfaceDataProxy and attach it to a new QSurface3DSeries: + + \snippet graphgallery/surfacegraphmodifier.cpp 0 + + Then, fill the proxy with a simple square root and sine wave data. Create a new + \c QSurfaceDataArray instance, and add \c QSurfaceDataRow elements to it. + Set the created \c QSurfaceDataArray as the data array for the QSurfaceDataProxy by calling + \c{resetArray()}. + + \snippet graphgallery/surfacegraphmodifier.cpp 1 + + \section2 Multiseries Height Map Data + + Create the height map by instantiating a QHeightMapSurfaceDataProxy with a QImage containing + the height data. Use QHeightMapSurfaceDataProxy::setValueRanges() to define the + value range of the map. In the example, the map is from an imaginary position of + 34.0\unicode 0x00B0 N - 40.0\unicode 0x00B0 N and 18.0\unicode 0x00B0 E - 24.0\unicode 0x00B0 E. + These values are used to position the map on the axes. + + \snippet graphgallery/surfacegraphmodifier.cpp 2 + + Add the other surface layers the same way, by creating a proxy and a series for them using + height map images. + + \section2 Topographic Map Data + + The topographic data is obtained from the National Land Survey of Finland. It provides a product + called \c{Elevation Model 2 m}, which is suitable for this example. + The topography data is from Levi fell. The accuracy of the data is well beyond the need, and + therefore it is compressed and encoded into a PNG file. The height value of the original + ASCII data is encoded into RGB format using a multiplier, which you will see later in + a code extract. The multiplier is calculated by dividing the largest 24-bit value with the + highest point in Finland. + + QHeightMapSurfaceDataProxy converts only one-byte values. To utilize the higher accuracy of + the data from the National Land Survey of Finland, read the data from the PNG file and decode + it into QSurface3DSeries. + + First, define the encoding multiplier: + + \snippet graphgallery/topographicseries.cpp 0 + + Then, perform the actual decoding: + + \snippet graphgallery/topographicseries.cpp 1 + + Now, the data is usable by the proxy. + + \section2 Selecting the Data Set + + To demonstrate different proxies, \uicontrol {Surface Graph} has three radio buttons to + switch between the series. + + With \uicontrol {Sqrt & Sin}, the simple generated series is activated. First, set + the decorative features, such as enabling the grid for the surface, and selecting the flat + shading mode. Next, define the axis label format and value ranges. Set automatic label rotation + to improve label readability at low camera angles. Finally, make sure the correct series is + added to the graph and the others are not: + + \snippet graphgallery/surfacegraphmodifier.cpp 3 + + With \uicontrol {Multiseries Height Map}, the height map series are activated and others + disabled. Auto-adjusting Y-axis range works well for the height map surface, so ensure it is + set. + + \snippet graphgallery/surfacegraphmodifier.cpp 4 + + With \uicontrol {Textured Topography}, the topographic series is activated and others disabled. + Activate a custom input handler for this series, to be able to highlight areas on it: + + \snippet graphgallery/surfacegraphmodifier.cpp 5 + + See \l {Use Custom Input Handler to Enable Zooming and Panning} for information about the + custom input handler for this data set. + + \section2 Selection Modes + + The three selection modes supported by Q3DSurface can be used with radio buttons. + To activate the selected mode or to clear it, add the following inline methods: + + \snippet graphgallery/surfacegraphmodifier.h 0 + + Add \c{QAbstract3DGraph::SelectionSlice} and \c{QAbstract3DGraph::SelectionMultiSeries} flags + for the row and column selection modes to support doing a slice selection to all visible series + in the graph simultaneously. + + \section2 Axis Ranges for Studying the Graph + + The example has four slider controls for adjusting the min and max values for X and Z + axes. When selecting the proxy, these sliders are adjusted to match the axis ranges of the + current data set: + + \snippet graphgallery/surfacegraphmodifier.cpp 6 + + Add support for setting the X range from the widget controls to the graph: + + \snippet graphgallery/surfacegraphmodifier.cpp 7 + + Add the support for Z range the same way. + + \section2 Custom Surface Gradients + + With the \uicontrol {Sqrt & Sin} data set, custom surface gradients can be taken into use + with two push buttons. Define the gradient with QLinearGradient, where the desired colors are + set. Also, change the color style to Q3DTheme::ColorStyleRangeGradient to use the gradient. + + \snippet graphgallery/surfacegraphmodifier.cpp 8 + + \section2 Adding Custom Meshes to the Application + + Add the mesh files to \c{CMakeLists.txt} for cmake build: + + \badcode + set(graphgallery_resource_files + ... + "data/oilrig.obj" + "data/pipe.obj" + "data/refinery.obj" + ... + ) + + qt6_add_resources(graphgallery "graphgallery" + PREFIX + "/" + FILES + ${graphgallery_resource_files} + ) + \endcode + + Also, add them in the qrc resource file for use with qmake: + + \badcode + <RCC> + <qresource prefix="/"> + ... + <file>data/refinery.obj</file> + <file>data/oilrig.obj</file> + <file>data/pipe.obj</file> + ... + </qresource> + </RCC> + \endcode + + \section2 Adding Custom Item to a Graph + + With the \uicontrol {Multiseries Height Map} data set, custom items are inserted into the + graph and can be toggled on or off using checkboxes. Other visual qualities can also be + controlled with another set of checkboxes, including see-through for the two top layers, and + a highlight for the bottom layer. + + Begin by creating a small QImage. Fill it with a single color to use as the color for the + custom object: + + \snippet graphgallery/surfacegraphmodifier.cpp 9 + + Then, specify the position of the item in a variable. The position can then be used for + removing the correct item from the graph: + + \snippet graphgallery/surfacegraphmodifier.cpp 10 + + Then, create a new QCustom3DItem with all the parameters: + + \snippet graphgallery/surfacegraphmodifier.cpp 11 + + Finally, add the item to the graph: + + \snippet graphgallery/surfacegraphmodifier.cpp 12 + + \section2 Adding Custom Label to a Graph + + Adding a custom label is very similar to adding a custom item. For the label, a custom mesh is + not needed, but just a QCustom3DLabel instance: + + \snippet graphgallery/surfacegraphmodifier.cpp 13 + + \section2 Removing Custom Item from a Graph + + To remove a specific item from the graph, call \c removeCustomItemAt() with the position of + the item: + + \snippet graphgallery/surfacegraphmodifier.cpp 14 + + \note Removing a custom item from the graph also deletes the object. If you want to preserve + the item, use the \c releaseCustomItem() method instead. + + \section2 Texture to a Surface Series + + With the \uicontrol {Textured Topography} data set, create a map texture to be used with the + topographic height map. + + Set an image to be used as the texture on a surface with QSurface3DSeries::setTextureFile(). + Add a check box to control if the texture is set or not, and a handler to react to the checkbox + state: + + \snippet graphgallery/surfacegraphmodifier.cpp 15 + + The image in this example is read from a JPG file. Setting an empty file with the method clears + the texture, and the surface uses the gradients or colors from the theme. + + \section2 Use Custom Input Handler to Enable Zooming and Panning + + With the \uicontrol {Textured Topography} data set, create a custom input handler to + highlight the selection on the graph and allow panning the graph. + + The panning implementation is similar to the one shown in \l{Implementing Axis Dragging}. + The difference is that, in this example, you follow only the X and Z axes and don't allow + dragging the surface outside the graph. To limit the dragging, follow the limits of the axes + and do nothing if going outside the graph: + + \snippet graphgallery/custominputhandler.cpp 0 + + For zooming, catch the \c wheelEvent and adjust the X and Y axis ranges according to the delta + value on QWheelEvent. Adjust the Y axis so that the aspect ratio between the Y axis and the XZ + plane stays the same. This prevents getting a graph in which the height is exaggerated: + + \snippet graphgallery/custominputhandler.cpp 1 + + Next, add some limits to the zoom level, so that it won't get too near to or far from the + surface. For instance, if the value for the X axis gets below the allowed limit, i.e. zooming + gets too far, the value is set to the minimum allowed value. If the range is going to below + the range minimum, both ends of the axis are adjusted so that the range stays at the limit: + + \snippet graphgallery/custominputhandler.cpp 2 + + \section2 Highlight an Area of the Surface + + To implement a highlight to be displayed on the surface, create a copy of the series and add + some offset to the y value. In this example, the class \c HighlightSeries implements the + creation of the copy in its \c handlePositionChange method. + + First, give \c HighlightSeries the pointer to the original series, and then start listening to + the QSurface3DSeries::selectedPointChanged signal: + + \snippet graphgallery/highlightseries.cpp 0 + + When the signal triggers, check that the position is valid. Then, calculate the ranges + for the copied area, and check that they stay within the bounds. Finally, fill the data array + of the highlight series with the range from the data array of the topography series: + + \snippet graphgallery/highlightseries.cpp 1 + + \section2 A Gradient to the Highlight Series + + Since the \c HighlightSeries is QSurface3DSeries, all the decoration methods a series can + have are available. In this example, add a gradient to emphasize the elevation. Because the + suitable gradient style depends on the range of the Y axis and we change the range when + zooming, the gradient color positions need to be adjusted as the range changes. Do this by + defining proportional values for the gradient color positions: + + \snippet graphgallery/highlightseries.cpp 2 + + The gradient modification is done in the \c handleGradientChange method, so connect it to + react to changes on the Y axis: + + \snippet graphgallery/surfacegraphmodifier.cpp 16 + + When a change in the Y axis max value happens, calculate the new gradient color positions: + + \snippet graphgallery/highlightseries.cpp 3 + + \section1 Example Contents +*/ diff --git a/examples/datavisualization/graphgallery/graphgallery.pro b/examples/datavisualization/graphgallery/graphgallery.pro new file mode 100644 index 00000000..c9bd96f6 --- /dev/null +++ b/examples/datavisualization/graphgallery/graphgallery.pro @@ -0,0 +1,49 @@ +android|ios|winrt { + error( "This example is not supported for android, ios, or winrt." ) +} + +!include( ../examples.pri ) { + error( "Couldn't find the examples.pri file!" ) +} + +QT += widgets +requires(qtConfig(fontcombobox)) +requires(qtConfig(combobox)) + +SOURCES += main.cpp \ + bargraph.cpp \ + graphmodifier.cpp \ + rainfalldata.cpp \ + variantdataset.cpp \ + variantbardataproxy.cpp \ + variantbardatamapping.cpp \ + scattergraph.cpp \ + scatterdatamodifier.cpp \ + axesinputhandler.cpp \ + surfacegraph.cpp \ + surfacegraphmodifier.cpp \ + custominputhandler.cpp \ + highlightseries.cpp \ + topographicseries.cpp + +HEADERS += \ + bargraph.h \ + graphmodifier.h \ + rainfalldata.h \ + variantdataset.h \ + variantbardataproxy.h \ + variantbardatamapping.h \ + scattergraph.h \ + scatterdatamodifier.h \ + axesinputhandler.h \ + surfacegraph.h \ + surfacegraphmodifier.h \ + custominputhandler.h \ + highlightseries.h \ + topographicseries.h + +RESOURCES += graphgallery.qrc + +OTHER_FILES += doc/src/* \ + doc/images/* \ + data/* diff --git a/examples/datavisualization/graphgallery/graphgallery.qrc b/examples/datavisualization/graphgallery/graphgallery.qrc new file mode 100644 index 00000000..6df5703d --- /dev/null +++ b/examples/datavisualization/graphgallery/graphgallery.qrc @@ -0,0 +1,13 @@ +<RCC> + <qresource prefix="/"> + <file>data/raindata.txt</file> + <file>data/layer_1.png</file> + <file>data/layer_2.png</file> + <file>data/layer_3.png</file> + <file>data/refinery.obj</file> + <file>data/oilrig.obj</file> + <file>data/pipe.obj</file> + <file>data/maptexture.jpg</file> + <file>data/topography.png</file> + </qresource> +</RCC> diff --git a/examples/datavisualization/graphgallery/graphmodifier.cpp b/examples/datavisualization/graphgallery/graphmodifier.cpp new file mode 100644 index 00000000..b0cb6f48 --- /dev/null +++ b/examples/datavisualization/graphgallery/graphmodifier.cpp @@ -0,0 +1,441 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "graphmodifier.h" +#include "rainfalldata.h" + +#include <QtDataVisualization/qcategory3daxis.h> +#include <QtDataVisualization/qvalue3daxis.h> +#include <QtDataVisualization/qbardataproxy.h> +#include <QtDataVisualization/q3dscene.h> +#include <QtDataVisualization/q3dcamera.h> +#include <QtDataVisualization/qbar3dseries.h> +#include <QtDataVisualization/q3dtheme.h> +#include <QtCore/qmath.h> +#include <QtWidgets/qcombobox.h> + +using namespace Qt::StringLiterals; + +// TODO: Many of the values do not affect custom proxy series now - should be fixed + +//! [0] +GraphModifier::GraphModifier(Q3DBars *bargraph, QObject *parent) : + QObject(parent), + m_graph(bargraph), + //! [0] + //! [1] + m_temperatureAxis(new QValue3DAxis), + m_yearAxis(new QCategory3DAxis), + m_monthAxis(new QCategory3DAxis), + m_primarySeries(new QBar3DSeries), + m_secondarySeries(new QBar3DSeries), + m_celsiusString(u"°C"_s) + //! [1] +{ + //! [2] + m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualitySoftMedium); + m_graph->activeTheme()->setBackgroundEnabled(false); + m_graph->activeTheme()->setFont(QFont("Times New Roman", m_fontSize)); + m_graph->activeTheme()->setLabelBackgroundEnabled(true); + m_graph->setMultiSeriesUniform(true); + //! [2] + + m_months = {"January", "February", "March", "April", "May", "June" , "July", + "August", "September", "October" , "November", "December"}; + m_years = {"2015", "2016", "2017", "2018", "2019", "2020", "2021", "2022"}; + + //! [3] + m_temperatureAxis->setTitle("Average temperature"); + m_temperatureAxis->setSegmentCount(m_segments); + m_temperatureAxis->setSubSegmentCount(m_subSegments); + m_temperatureAxis->setRange(m_minval, m_maxval); + m_temperatureAxis->setLabelFormat(u"%.1f "_s + m_celsiusString); + m_temperatureAxis->setLabelAutoRotation(30.0f); + m_temperatureAxis->setTitleVisible(true); + + m_yearAxis->setTitle("Year"); + m_yearAxis->setLabelAutoRotation(30.0f); + m_yearAxis->setTitleVisible(true); + m_monthAxis->setTitle("Month"); + m_monthAxis->setLabelAutoRotation(30.0f); + m_monthAxis->setTitleVisible(true); + + m_graph->setValueAxis(m_temperatureAxis); + m_graph->setRowAxis(m_yearAxis); + m_graph->setColumnAxis(m_monthAxis); + //! [3] + + //! [4] + m_primarySeries->setItemLabelFormat(u"Oulu - @colLabel @rowLabel: @valueLabel"_s); + m_primarySeries->setMesh(QAbstract3DSeries::MeshBevelBar); + m_primarySeries->setMeshSmooth(false); + + m_secondarySeries->setItemLabelFormat(u"Helsinki - @colLabel @rowLabel: @valueLabel"_s); + m_secondarySeries->setMesh(QAbstract3DSeries::MeshBevelBar); + m_secondarySeries->setMeshSmooth(false); + m_secondarySeries->setVisible(false); + //! [4] + + //! [5] + m_graph->addSeries(m_primarySeries); + m_graph->addSeries(m_secondarySeries); + //! [5] + + //! [6] + changePresetCamera(); + //! [6] + + //! [8] + resetTemperatureData(); + //! [8] + + // Set up property animations for zooming to the selected bar + //! [11] + Q3DCamera *camera = m_graph->scene()->activeCamera(); + m_defaultAngleX = camera->xRotation(); + m_defaultAngleY = camera->yRotation(); + m_defaultZoom = camera->zoomLevel(); + m_defaultTarget = camera->target(); + + m_animationCameraX.setTargetObject(camera); + m_animationCameraY.setTargetObject(camera); + m_animationCameraZoom.setTargetObject(camera); + m_animationCameraTarget.setTargetObject(camera); + + m_animationCameraX.setPropertyName("xRotation"); + m_animationCameraY.setPropertyName("yRotation"); + m_animationCameraZoom.setPropertyName("zoomLevel"); + m_animationCameraTarget.setPropertyName("target"); + + int duration = 1700; + m_animationCameraX.setDuration(duration); + m_animationCameraY.setDuration(duration); + m_animationCameraZoom.setDuration(duration); + m_animationCameraTarget.setDuration(duration); + + // The zoom always first zooms out above the graph and then zooms in + qreal zoomOutFraction = 0.3; + m_animationCameraX.setKeyValueAt(zoomOutFraction, QVariant::fromValue(0.0f)); + m_animationCameraY.setKeyValueAt(zoomOutFraction, QVariant::fromValue(90.0f)); + m_animationCameraZoom.setKeyValueAt(zoomOutFraction, QVariant::fromValue(50.0f)); + m_animationCameraTarget.setKeyValueAt(zoomOutFraction, + QVariant::fromValue(QVector3D(0.0f, 0.0f, 0.0f))); + //! [11] + + m_customData = new RainfallData(); +} + +GraphModifier::~GraphModifier() +{ + delete m_customData; +} + +void GraphModifier::resetTemperatureData() +{ + //! [9a] + // Set up data + static const float tempOulu[8][12] = { + {-7.4f, -2.4f, 0.0f, 3.0f, 8.2f, 11.6f, 14.7f, 15.4f, 11.4f, 4.2f, 2.1f, -2.3f}, // 2015 + {-13.4f, -3.9f, -1.8f, 3.1f, 10.6f, 13.7f, 17.8f, 13.6f, 10.7f, 3.5f, -3.1f, -4.2f}, // 2016 + //! [9a] + {-5.7f, -6.7f, -3.0f, -0.1f, 4.7f, 12.4f, 16.1f, 14.1f, 9.4f, 3.0f, -0.3f, -3.2f}, // 2017 + {-6.4f, -11.9f, -7.4f, 1.9f, 11.4f, 12.4f, 21.5f, 16.1f, 11.0f, 4.4f, 2.1f, -4.1f}, // 2018 + {-11.7f, -6.1f, -2.4f, 3.9f, 7.2f, 14.5f, 15.6f, 14.4f, 8.5f, 2.0f, -3.0f, -1.5f}, // 2019 + {-2.1f, -3.4f, -1.8f, 0.6f, 7.0f, 17.1f, 15.6f, 15.4f, 11.1f, 5.6f, 1.9f, -1.7f}, // 2020 + {-9.6f, -11.6f, -3.2f, 2.4f, 7.8f, 17.3f, 19.4f, 14.2f, 8.0f, 5.2f, -2.2f, -8.6f}, // 2021 + {-7.3f, -6.4f, -1.8f, 1.3f, 8.1f, 15.5f, 17.6f, 17.6f, 9.1f, 5.4f, -1.5f, -4.4f} // 2022 + }; + + static const float tempHelsinki[8][12] = { + {-2.0f, -0.1f, 1.8f, 5.1f, 9.7f, 13.7f, 16.3f, 17.3f, 12.7f, 5.4f, 4.6f, 2.1f}, // 2015 + {-10.3f, -0.6f, 0.0f, 4.9f, 14.3f, 15.7f, 17.7f, 16.0f, 12.7f, 4.6f, -1.0f, -0.9f}, // 2016 + {-2.9f, -3.3f, 0.7f, 2.3f, 9.9f, 13.8f, 16.1f, 15.9f, 11.4f, 5.0f, 2.7f, 0.7f}, // 2017 + {-2.2f, -8.4f, -4.7f, 5.0f, 15.3f, 15.8f, 21.2f, 18.2f, 13.3f, 6.7f, 2.8f, -2.0f}, // 2018 + {-6.2f, -0.5f, -0.3f, 6.8f, 10.6f, 17.9f, 17.5f, 16.8f, 11.3f, 5.2f, 1.8f, 1.4f}, // 2019 + {1.9f, 0.5f, 1.7f, 4.5f, 9.5f, 18.4f, 16.5f, 16.8f, 13.0f, 8.2f, 4.4f, 0.9f}, // 2020 + {-4.7f, -8.1f, -0.9f, 4.5f, 10.4f, 19.2f, 20.9f, 15.4f, 9.5f, 8.0f, 1.5f, -6.7f}, // 2021 + {-3.3f, -2.2f, -0.2f, 3.3f, 9.6f, 16.9f, 18.1f, 18.9f, 9.2f, 7.6f, 2.3f, -3.4f} // 2022 + }; + + // Create data arrays + //! [9b] + auto *dataSet = new QBarDataArray; + auto *dataSet2 = new QBarDataArray; + + dataSet->reserve(m_years.size()); + for (qsizetype year = 0; year < m_years.size(); ++year) { + // Create a data row + auto *dataRow = new QBarDataRow(m_months.size()); + auto *dataRow2 = new QBarDataRow(m_months.size()); + for (qsizetype month = 0; month < m_months.size(); ++month) { + // Add data to the row + (*dataRow)[month].setValue(tempOulu[year][month]); + (*dataRow2)[month].setValue(tempHelsinki[year][month]); + } + // Add the row to the set + dataSet->append(dataRow); + dataSet2->append(dataRow2); + } + + // Add data to the data proxy (the data proxy assumes ownership of it) + m_primarySeries->dataProxy()->resetArray(dataSet, m_years, m_months); + m_secondarySeries->dataProxy()->resetArray(dataSet2, m_years, m_months); + //! [9b] +} + +void GraphModifier::changeRange(int range) +{ + if (range >= m_years.count()) + m_yearAxis->setRange(0, m_years.count() - 1); + else + m_yearAxis->setRange(range, range); +} + +void GraphModifier::changeStyle(int style) +{ + auto *comboBox = qobject_cast<QComboBox *>(sender()); + if (comboBox) { + m_barMesh = comboBox->itemData(style).value<QAbstract3DSeries::Mesh>(); + m_primarySeries->setMesh(m_barMesh); + m_secondarySeries->setMesh(m_barMesh); + m_customData->customSeries()->setMesh(m_barMesh); + } +} + +void GraphModifier::changePresetCamera() +{ + m_animationCameraX.stop(); + m_animationCameraY.stop(); + m_animationCameraZoom.stop(); + m_animationCameraTarget.stop(); + + // Restore camera target in case animation has changed it + m_graph->scene()->activeCamera()->setTarget(QVector3D(0.0f, 0.0f, 0.0f)); + + //! [7] + static int preset = Q3DCamera::CameraPresetFront; + + m_graph->scene()->activeCamera()->setCameraPreset((Q3DCamera::CameraPreset)preset); + + if (++preset > Q3DCamera::CameraPresetDirectlyBelow) + preset = Q3DCamera::CameraPresetFrontLow; + //! [7] +} + +void GraphModifier::changeTheme(int theme) +{ + Q3DTheme *currentTheme = m_graph->activeTheme(); + currentTheme->setType(Q3DTheme::Theme(theme)); + emit backgroundEnabledChanged(currentTheme->isBackgroundEnabled()); + emit gridEnabledChanged(currentTheme->isGridEnabled()); + emit fontChanged(currentTheme->font()); + emit fontSizeChanged(currentTheme->font().pointSize()); +} + +void GraphModifier::changeLabelBackground() +{ + m_graph->activeTheme()->setLabelBackgroundEnabled(!m_graph->activeTheme()->isLabelBackgroundEnabled()); +} + +void GraphModifier::changeSelectionMode(int selectionMode) +{ + auto *comboBox = qobject_cast<QComboBox *>(sender()); + if (comboBox) { + int flags = comboBox->itemData(selectionMode).toInt(); + m_graph->setSelectionMode(QAbstract3DGraph::SelectionFlags(flags)); + } +} + +void GraphModifier::changeFont(const QFont &font) +{ + QFont newFont = font; + m_graph->activeTheme()->setFont(newFont); +} + +void GraphModifier::changeFontSize(int fontsize) +{ + m_fontSize = fontsize; + QFont font = m_graph->activeTheme()->font(); + font.setPointSize(m_fontSize); + m_graph->activeTheme()->setFont(font); +} + +void GraphModifier::shadowQualityUpdatedByVisual(QAbstract3DGraph::ShadowQuality sq) +{ + int quality = int(sq); + // Updates the UI component to show correct shadow quality + emit shadowQualityChanged(quality); +} + +void GraphModifier::changeLabelRotation(int rotation) +{ + m_temperatureAxis->setLabelAutoRotation(float(rotation)); + m_monthAxis->setLabelAutoRotation(float(rotation)); + m_yearAxis->setLabelAutoRotation(float(rotation)); +} + +void GraphModifier::setAxisTitleVisibility(bool enabled) +{ + m_temperatureAxis->setTitleVisible(enabled); + m_monthAxis->setTitleVisible(enabled); + m_yearAxis->setTitleVisible(enabled); +} + +void GraphModifier::setAxisTitleFixed(bool enabled) +{ + m_temperatureAxis->setTitleFixed(enabled); + m_monthAxis->setTitleFixed(enabled); + m_yearAxis->setTitleFixed(enabled); +} + +void GraphModifier::zoomToSelectedBar() +{ + m_animationCameraX.stop(); + m_animationCameraY.stop(); + m_animationCameraZoom.stop(); + m_animationCameraTarget.stop(); + + Q3DCamera *camera = m_graph->scene()->activeCamera(); + float currentX = camera->xRotation(); + float currentY = camera->yRotation(); + float currentZoom = camera->zoomLevel(); + QVector3D currentTarget = camera->target(); + + m_animationCameraX.setStartValue(QVariant::fromValue(currentX)); + m_animationCameraY.setStartValue(QVariant::fromValue(currentY)); + m_animationCameraZoom.setStartValue(QVariant::fromValue(currentZoom)); + m_animationCameraTarget.setStartValue(QVariant::fromValue(currentTarget)); + + QPoint selectedBar = m_graph->selectedSeries() + ? m_graph->selectedSeries()->selectedBar() + : QBar3DSeries::invalidSelectionPosition(); + + if (selectedBar != QBar3DSeries::invalidSelectionPosition()) { + // Normalize selected bar position within axis range to determine target coordinates + //! [12] + QVector3D endTarget; + float xMin = m_graph->columnAxis()->min(); + float xRange = m_graph->columnAxis()->max() - xMin; + float zMin = m_graph->rowAxis()->min(); + float zRange = m_graph->rowAxis()->max() - zMin; + endTarget.setX((selectedBar.y() - xMin) / xRange * 2.0f - 1.0f); + endTarget.setZ((selectedBar.x() - zMin) / zRange * 2.0f - 1.0f); + //! [12] + + // Rotate the camera so that it always points approximately to the graph center + //! [14] + qreal endAngleX = 90.0 - qRadiansToDegrees(qAtan(qreal(endTarget.z() / endTarget.x()))); + if (endTarget.x() > 0.0f) + endAngleX -= 180.0f; + float barValue = m_graph->selectedSeries()->dataProxy()->itemAt(selectedBar.x(), + selectedBar.y())->value(); + float endAngleY = barValue >= 0.0f ? 30.0f : -30.0f; + if (m_graph->valueAxis()->reversed()) + endAngleY *= -1.0f; + //! [14] + + m_animationCameraX.setEndValue(QVariant::fromValue(float(endAngleX))); + m_animationCameraY.setEndValue(QVariant::fromValue(endAngleY)); + m_animationCameraZoom.setEndValue(QVariant::fromValue(250)); + //! [13] + m_animationCameraTarget.setEndValue(QVariant::fromValue(endTarget)); + //! [13] + } else { + // No selected bar, so return to the default view + m_animationCameraX.setEndValue(QVariant::fromValue(m_defaultAngleX)); + m_animationCameraY.setEndValue(QVariant::fromValue(m_defaultAngleY)); + m_animationCameraZoom.setEndValue(QVariant::fromValue(m_defaultZoom)); + m_animationCameraTarget.setEndValue(QVariant::fromValue(m_defaultTarget)); + } + + m_animationCameraX.start(); + m_animationCameraY.start(); + m_animationCameraZoom.start(); + m_animationCameraTarget.start(); +} + +void GraphModifier::setDataModeToWeather(bool enabled) +{ + if (enabled) + changeDataMode(false); +} + +void GraphModifier::setDataModeToCustom(bool enabled) +{ + if (enabled) + changeDataMode(true); +} + +void GraphModifier::changeShadowQuality(int quality) +{ + QAbstract3DGraph::ShadowQuality sq = QAbstract3DGraph::ShadowQuality(quality); + m_graph->setShadowQuality(sq); + emit shadowQualityChanged(quality); +} + +//! [10] +void GraphModifier::rotateX(int rotation) +{ + m_xRotation = rotation; + m_graph->scene()->activeCamera()->setCameraPosition(m_xRotation, m_yRotation); +} +//! [10] + +void GraphModifier::rotateY(int rotation) +{ + m_yRotation = rotation; + m_graph->scene()->activeCamera()->setCameraPosition(m_xRotation, m_yRotation); +} + +void GraphModifier::setBackgroundEnabled(int enabled) +{ + m_graph->activeTheme()->setBackgroundEnabled(bool(enabled)); +} + +void GraphModifier::setGridEnabled(int enabled) +{ + m_graph->activeTheme()->setGridEnabled(bool(enabled)); +} + +void GraphModifier::setSmoothBars(int smooth) +{ + m_smooth = bool(smooth); + m_primarySeries->setMeshSmooth(m_smooth); + m_secondarySeries->setMeshSmooth(m_smooth); + m_customData->customSeries()->setMeshSmooth(m_smooth); +} + +void GraphModifier::setSeriesVisibility(int enabled) +{ + m_secondarySeries->setVisible(bool(enabled)); +} + +void GraphModifier::setReverseValueAxis(int enabled) +{ + m_graph->valueAxis()->setReversed(enabled); +} + +void GraphModifier::setReflection(bool enabled) +{ + m_graph->setReflection(enabled); +} + +void GraphModifier::changeDataMode(bool customData) +{ + // Change between weather data and data from custom proxy + if (customData) { + m_graph->removeSeries(m_primarySeries); + m_graph->removeSeries(m_secondarySeries); + m_graph->addSeries(m_customData->customSeries()); + m_graph->setValueAxis(m_customData->valueAxis()); + m_graph->setRowAxis(m_customData->rowAxis()); + m_graph->setColumnAxis(m_customData->colAxis()); + } else { + m_graph->removeSeries(m_customData->customSeries()); + m_graph->addSeries(m_primarySeries); + m_graph->addSeries(m_secondarySeries); + m_graph->setValueAxis(m_temperatureAxis); + m_graph->setRowAxis(m_yearAxis); + m_graph->setColumnAxis(m_monthAxis); + } +} diff --git a/examples/datavisualization/graphgallery/graphmodifier.h b/examples/datavisualization/graphgallery/graphmodifier.h new file mode 100644 index 00000000..0d112c0d --- /dev/null +++ b/examples/datavisualization/graphgallery/graphmodifier.h @@ -0,0 +1,87 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef GRAPHMODIFIER_H +#define GRAPHMODIFIER_H + +#include <QtDataVisualization/q3dbars.h> +#include <QtDataVisualization/qbardataproxy.h> +#include <QtDataVisualization/qabstract3dseries.h> +#include <QtCore/qpropertyanimation.h> + +class RainfallData; + +class GraphModifier : public QObject +{ + Q_OBJECT +public: + explicit GraphModifier(Q3DBars *bargraph, QObject *parent); + ~GraphModifier(); + + void resetTemperatureData(); + void changePresetCamera(); + void changeLabelBackground(); + void changeFont(const QFont &font); + void changeFontSize(int fontsize); + void rotateX(int rotation); + void rotateY(int rotation); + void setBackgroundEnabled(int enabled); + void setGridEnabled(int enabled); + void setSmoothBars(int smooth); + void setSeriesVisibility(int enabled); + void setReverseValueAxis(int enabled); + void setReflection(bool enabled); + void changeDataMode(bool customData); + +public Q_SLOTS: + void changeRange(int range); + void changeStyle(int style); + void changeSelectionMode(int selectionMode); + void changeTheme(int theme); + void changeShadowQuality(int quality); + void shadowQualityUpdatedByVisual(QAbstract3DGraph::ShadowQuality shadowQuality); + void changeLabelRotation(int rotation); + void setAxisTitleVisibility(bool enabled); + void setAxisTitleFixed(bool enabled); + void zoomToSelectedBar(); + void setDataModeToWeather(bool enabled); + void setDataModeToCustom(bool enabled); + +Q_SIGNALS: + void shadowQualityChanged(int quality); + void backgroundEnabledChanged(bool enabled); + void gridEnabledChanged(bool enabled); + void fontChanged(const QFont &font); + void fontSizeChanged(int size); + +private: + Q3DBars *m_graph = nullptr; + float m_xRotation = 0.f; + float m_yRotation = 0.f; + int m_fontSize = 30; + int m_segments = 4; + int m_subSegments = 3; + float m_minval = -20.f; + float m_maxval = 20.f; + QStringList m_months = {}; + QStringList m_years = {}; + QValue3DAxis *m_temperatureAxis = nullptr; + QCategory3DAxis *m_yearAxis = nullptr; + QCategory3DAxis *m_monthAxis = nullptr; + QBar3DSeries *m_primarySeries = nullptr; + QBar3DSeries *m_secondarySeries = nullptr; + QAbstract3DSeries::Mesh m_barMesh = QAbstract3DSeries::MeshBevelBar; + bool m_smooth = false; + QPropertyAnimation m_animationCameraX = {}; + QPropertyAnimation m_animationCameraY = {}; + QPropertyAnimation m_animationCameraZoom = {}; + QPropertyAnimation m_animationCameraTarget = {}; + float m_defaultAngleX = 0.f; + float m_defaultAngleY = 0.f; + float m_defaultZoom = 0.f; + QVector3D m_defaultTarget = {}; + const QString m_celsiusString; + RainfallData *m_customData = nullptr; +}; + +#endif diff --git a/examples/datavisualization/graphgallery/highlightseries.cpp b/examples/datavisualization/graphgallery/highlightseries.cpp new file mode 100644 index 00000000..3f10b421 --- /dev/null +++ b/examples/datavisualization/graphgallery/highlightseries.cpp @@ -0,0 +1,101 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "highlightseries.h" + +//! [2] +const float darkRedPos = 1.f; +const float redPos = 0.8f; +const float yellowPos = 0.6f; +const float greenPos = 0.4f; +const float darkGreenPos = 0.2f; +//! [2] + +HighlightSeries::HighlightSeries() +{ + setDrawMode(QSurface3DSeries::DrawSurface); + setFlatShadingEnabled(true); + setVisible(false); +} + +HighlightSeries::~HighlightSeries() +{ +} + +//! [0] +void HighlightSeries::setTopographicSeries(TopographicSeries *series) +{ + m_topographicSeries = series; + m_srcWidth = m_topographicSeries->dataProxy()->array()->at(0)->size(); + m_srcHeight = m_topographicSeries->dataProxy()->array()->size(); + + QObject::connect(m_topographicSeries, &QSurface3DSeries::selectedPointChanged, + this, &HighlightSeries::handlePositionChange); +} +//! [0] + +//! [1] +void HighlightSeries::handlePositionChange(const QPoint &position) +{ + m_position = position; + + if (position == invalidSelectionPosition()) { + setVisible(false); + return; + } + + int halfWidth = m_width / 2; + int halfHeight = m_height / 2; + + int startX = position.y() - halfWidth; + if (startX < 0 ) + startX = 0; + int endX = position.y() + halfWidth; + if (endX > (m_srcWidth - 1)) + endX = m_srcWidth - 1; + int startZ = position.x() - halfHeight; + if (startZ < 0 ) + startZ = 0; + int endZ = position.x() + halfHeight; + if (endZ > (m_srcHeight - 1)) + endZ = m_srcHeight - 1; + + QSurfaceDataProxy *srcProxy = m_topographicSeries->dataProxy(); + const QSurfaceDataArray &srcArray = *srcProxy->array(); + + auto *dataArray = new QSurfaceDataArray; + dataArray->reserve(endZ - startZ); + for (int i = startZ; i < endZ; ++i) { + auto *newRow = new QSurfaceDataRow; + newRow->reserve(endX - startX); + QSurfaceDataRow *srcRow = srcArray.at(i); + for (int j = startX; j < endX; ++j) { + QVector3D pos = srcRow->at(j).position(); + pos.setY(pos.y() + 0.1f); + newRow->append(QSurfaceDataItem(pos)); + } + dataArray->append(newRow); + } + + dataProxy()->resetArray(dataArray); + setVisible(true); +} +//! [1] + +//! [3] +void HighlightSeries::handleGradientChange(float value) +{ + float ratio = m_minHeight / value; + + QLinearGradient gr; + gr.setColorAt(0.f, Qt::black); + gr.setColorAt(darkGreenPos * ratio, Qt::darkGreen); + gr.setColorAt(greenPos * ratio, Qt::green); + gr.setColorAt(yellowPos * ratio, Qt::yellow); + gr.setColorAt(redPos * ratio, Qt::red); + gr.setColorAt(darkRedPos * ratio, Qt::darkRed); + + setBaseGradient(gr); + setColorStyle(Q3DTheme::ColorStyleRangeGradient); +} +//! [3] diff --git a/examples/datavisualization/graphgallery/highlightseries.h b/examples/datavisualization/graphgallery/highlightseries.h new file mode 100644 index 00000000..c74a6b84 --- /dev/null +++ b/examples/datavisualization/graphgallery/highlightseries.h @@ -0,0 +1,35 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef HIGHLIGHTSERIES_H +#define HIGHLIGHTSERIES_H + +#include <QtDataVisualization/qsurface3dseries.h> + +#include "topographicseries.h" + +class HighlightSeries : public QSurface3DSeries +{ + Q_OBJECT +public: + explicit HighlightSeries(); + ~HighlightSeries(); + + void setTopographicSeries(TopographicSeries *series); + inline void setMinHeight(float height) { m_minHeight = height; } + +public Q_SLOTS: + void handlePositionChange(const QPoint &position); + void handleGradientChange(float value); + +private: + int m_width = 100; + int m_height = 100; + int m_srcWidth = 0; + int m_srcHeight = 0; + QPoint m_position = {}; + TopographicSeries *m_topographicSeries = nullptr; + float m_minHeight = 0.f; +}; + +#endif // HIGHLIGHTSERIES_H diff --git a/examples/datavisualization/graphgallery/main.cpp b/examples/datavisualization/graphgallery/main.cpp new file mode 100644 index 00000000..4bffa1c1 --- /dev/null +++ b/examples/datavisualization/graphgallery/main.cpp @@ -0,0 +1,52 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "bargraph.h" +#include "scattergraph.h" +#include "surfacegraph.h" + +#include <QtWidgets/qapplication.h> +#include <QtWidgets/qmessagebox.h> +#include <QtWidgets/qwidget.h> +#include <QtWidgets/qtabwidget.h> +#include <QtGui/qscreen.h> + +using namespace Qt::StringLiterals; + +int main(int argc, char **argv) +{ + qputenv("QSG_RHI_BACKEND", "opengl"); + + QApplication app(argc, argv); + + // Create a tab widget for creating own tabs for Q3DBars, Q3DScatter, and Q3DSurface + QTabWidget tabWidget; + tabWidget.setWindowTitle(u"Graph Gallery"_s); + + const QSize screenSize = tabWidget.screen()->size(); + const QSize minimumGraphSize{screenSize.width() / 2, qRound(screenSize.height() / 1.75)}; + + // Create bar graph + BarGraph bars; + // Create scatter graph + ScatterGraph scatter; + // Create surface graph + SurfaceGraph surface; + + if (!bars.initialize(minimumGraphSize, screenSize) + || !scatter.initialize(minimumGraphSize, screenSize) + || !surface.initialize(minimumGraphSize, screenSize)) { + QMessageBox::warning(nullptr, u"Graph Gallery"_s, u"Couldn't initialize the OpenGL context."_s); + return -1; + } + + // Add bars widget + tabWidget.addTab(bars.barsWidget(), u"Bar Graph"_s); + // Add scatter widget + tabWidget.addTab(scatter.scatterWidget(), u"Scatter Graph"_s); + // Add surface widget + tabWidget.addTab(surface.surfaceWidget(), u"Surface Graph"_s); + + tabWidget.show(); + return app.exec(); +} diff --git a/examples/datavisualization/graphgallery/rainfalldata.cpp b/examples/datavisualization/graphgallery/rainfalldata.cpp new file mode 100644 index 00000000..66a2553a --- /dev/null +++ b/examples/datavisualization/graphgallery/rainfalldata.cpp @@ -0,0 +1,117 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "rainfalldata.h" +#include <QtDataVisualization/q3dscene.h> +#include <QtDataVisualization/q3dcamera.h> +#include <QtDataVisualization/qbar3dseries.h> +#include <QtDataVisualization/q3dtheme.h> +#include <QtCore/qtextstream.h> +#include <QtCore/qfile.h> + +using namespace Qt::StringLiterals; + +RainfallData::RainfallData() +{ + // In data file the months are in numeric format, so create custom list + for (int i = 1; i <= 12; ++i) + m_numericMonths << QString::number(i); + + m_columnCount = m_numericMonths.size(); + + updateYearsList(2010, 2022); + + // Create proxy and series + //! [0] + m_proxy = new VariantBarDataProxy; + m_series = new QBar3DSeries(m_proxy); + //! [0] + + m_series->setItemLabelFormat(u"%.1f mm"_s); + + // Create the axes + m_rowAxis = new QCategory3DAxis(this); + m_colAxis = new QCategory3DAxis(this); + m_valueAxis = new QValue3DAxis(this); + m_rowAxis->setAutoAdjustRange(true); + m_colAxis->setAutoAdjustRange(true); + m_valueAxis->setAutoAdjustRange(true); + + // Set axis labels and titles + QStringList months{"January", "February", "March", "April", + "May", "June", "July", "August", "September", "October", + "November","December"}; + m_rowAxis->setTitle("Year"); + m_colAxis->setTitle("Month"); + m_valueAxis->setTitle("rainfall (mm)"); + m_valueAxis->setSegmentCount(5); + m_rowAxis->setLabels(m_years); + m_colAxis->setLabels(months); + m_rowAxis->setTitleVisible(true); + m_colAxis->setTitleVisible(true); + m_valueAxis->setTitleVisible(true); + + addDataSet(); +} + +RainfallData::~RainfallData() +{ + delete m_mapping; + delete m_dataSet; + delete m_proxy; +} + +void RainfallData::updateYearsList(int start, int end) +{ + m_years.clear(); + + for (int i = start; i <= end; ++i) + m_years << QString::number(i); + + m_rowCount = m_years.size(); +} + +//! [1] +void RainfallData::addDataSet() +{ + // Create a new variant data set and data item list + m_dataSet = new VariantDataSet; + auto *itemList = new VariantDataItemList; + + // Read data from a data file into the data item list + QFile dataFile(":/data/raindata.txt"); + if (dataFile.open(QIODevice::ReadOnly | QIODevice::Text)) { + QTextStream stream(&dataFile); + while (!stream.atEnd()) { + QString line = stream.readLine(); + if (line.startsWith('#')) // Ignore comments + continue; + const auto strList = QStringView{line}.split(',', Qt::SkipEmptyParts); + // Each line has three data items: Year, month, and rainfall value + if (strList.size() < 3) { + qWarning() << "Invalid row read from data:" << line; + continue; + } + // Store year and month as strings, and rainfall value as double + // into a variant data item and add the item to the item list. + auto *newItem = new VariantDataItem; + for (int i = 0; i < 2; ++i) + newItem->append(strList.at(i).trimmed().toString()); + newItem->append(strList.at(2).trimmed().toDouble()); + itemList->append(newItem); + } + } else { + qWarning() << "Unable to open data file:" << dataFile.fileName(); + } + //! [1] + + //! [2] + // Add items to the data set and set it to the proxy + m_dataSet->addItems(itemList); + m_proxy->setDataSet(m_dataSet); + + // Create new mapping for the data and set it to the proxy + m_mapping = new VariantBarDataMapping(0, 1, 2, m_years, m_numericMonths); + m_proxy->setMapping(m_mapping); + //! [2] +} diff --git a/examples/datavisualization/graphgallery/rainfalldata.h b/examples/datavisualization/graphgallery/rainfalldata.h new file mode 100644 index 00000000..c71f072b --- /dev/null +++ b/examples/datavisualization/graphgallery/rainfalldata.h @@ -0,0 +1,43 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef RAINFALLDATA_H +#define RAINFALLDATA_H + +#include "variantbardataproxy.h" +#include <QtDataVisualization/qcategory3daxis.h> +#include <QtDataVisualization/qvalue3daxis.h> + +class RainfallData : public QObject +{ + Q_OBJECT +public: + explicit RainfallData(); + ~RainfallData(); + + void addDataSet(); + + //! [0] + QBar3DSeries *customSeries() { return m_series; } + //! [0] + + QValue3DAxis *valueAxis() { return m_valueAxis; } + QCategory3DAxis *rowAxis() { return m_rowAxis; } + QCategory3DAxis *colAxis() { return m_colAxis; } + +private: + void updateYearsList(int start, int end); + int m_columnCount; + int m_rowCount; + QStringList m_years; + QStringList m_numericMonths; + VariantBarDataProxy *m_proxy; + VariantBarDataMapping *m_mapping; + VariantDataSet *m_dataSet; + QBar3DSeries *m_series; + QValue3DAxis *m_valueAxis; + QCategory3DAxis *m_rowAxis; + QCategory3DAxis *m_colAxis; +}; + +#endif diff --git a/examples/datavisualization/graphgallery/scatterdatamodifier.cpp b/examples/datavisualization/graphgallery/scatterdatamodifier.cpp new file mode 100644 index 00000000..1f3ec7ed --- /dev/null +++ b/examples/datavisualization/graphgallery/scatterdatamodifier.cpp @@ -0,0 +1,191 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "scatterdatamodifier.h" +#include <QtDataVisualization/qscatterdataproxy.h> +#include <QtDataVisualization/qvalue3daxis.h> +#include <QtDataVisualization/q3dscene.h> +#include <QtDataVisualization/q3dcamera.h> +#include <QtDataVisualization/qscatter3dseries.h> +#include <QtDataVisualization/q3dtheme.h> +#include <QtCore/qmath.h> +#include <QtCore/qrandom.h> +#include <QtWidgets/qcombobox.h> + +using namespace Qt::StringLiterals; + +//#define RANDOM_SCATTER // Uncomment this to switch to random scatter + +const int numberOfItems = 10000; +const float curveDivider = 7.5f; +const int lowerNumberOfItems = 900; +const float lowerCurveDivider = 0.75f; + +ScatterDataModifier::ScatterDataModifier(Q3DScatter *scatter, QObject *parent) : + QObject(parent), + m_graph(scatter), + m_itemCount(lowerNumberOfItems), + m_curveDivider(lowerCurveDivider), + //! [7] + m_inputHandler(new AxesInputHandler(scatter)) + //! [7] +{ + //! [0] + m_graph->activeTheme()->setType(Q3DTheme::ThemeStoneMoss); + m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualitySoftHigh); + m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront); + m_graph->scene()->activeCamera()->setZoomLevel(80.f); + //! [0] + + //! [1] + auto *proxy = new QScatterDataProxy; + auto *series = new QScatter3DSeries(proxy); + series->setItemLabelFormat(u"@xTitle: @xLabel @yTitle: @yLabel @zTitle: @zLabel"_s); + series->setMeshSmooth(m_smooth); + m_graph->addSeries(series); + //! [1] + + //! [8] + // Give ownership of the handler to the graph and make it the active handler + m_graph->setActiveInputHandler(m_inputHandler); + //! [8] + + //! [9] + // Give our axes to the input handler + m_inputHandler->setAxes(m_graph->axisX(), m_graph->axisZ(), m_graph->axisY()); + //! [9] + + //! [2] + addData(); + //! [2] +} + +void ScatterDataModifier::addData() +{ + // Configure the axes according to the data + //! [3] + m_graph->axisX()->setTitle("X"); + m_graph->axisY()->setTitle("Y"); + m_graph->axisZ()->setTitle("Z"); + //! [3] + + //! [4] + auto *dataArray = new QScatterDataArray; + dataArray->reserve(m_itemCount); + //! [4] + +#ifdef RANDOM_SCATTER + for (int i = 0; i < m_itemCount; ++i) + dataArray->append(QScatterDataItem(randVector())); +#else + //! [5] + const float limit = qSqrt(m_itemCount) / 2.0f; + for (int i = -limit; i < limit; ++i) { + for (int j = -limit; j < limit; ++j) { + const float x = float(i) + 0.5f; + const float y = qCos(qDegreesToRadians(float(i * j) / m_curveDivider)); + const float z = float(j) + 0.5f; + dataArray->append(QScatterDataItem({x, y, z})); + } + } + //! [5] +#endif + + //! [6] + m_graph->seriesList().at(0)->dataProxy()->resetArray(dataArray); + //! [6] +} + +void ScatterDataModifier::changeStyle(int style) +{ + QComboBox *comboBox = qobject_cast<QComboBox *>(sender()); + if (comboBox) { + m_style = comboBox->itemData(style).value<QAbstract3DSeries::Mesh>(); + if (!m_graph->seriesList().isEmpty()) + m_graph->seriesList().at(0)->setMesh(m_style); + } +} + +void ScatterDataModifier::setSmoothDots(int smooth) +{ + m_smooth = bool(smooth); + QScatter3DSeries *series = m_graph->seriesList().at(0); + series->setMeshSmooth(m_smooth); +} + +void ScatterDataModifier::changeTheme(int theme) +{ + Q3DTheme *currentTheme = m_graph->activeTheme(); + currentTheme->setType(Q3DTheme::Theme(theme)); + emit backgroundEnabledChanged(currentTheme->isBackgroundEnabled()); + emit gridEnabledChanged(currentTheme->isGridEnabled()); +} + +void ScatterDataModifier::changePresetCamera() +{ + static int preset = Q3DCamera::CameraPresetFrontLow; + + m_graph->scene()->activeCamera()->setCameraPreset((Q3DCamera::CameraPreset)preset); + + if (++preset > Q3DCamera::CameraPresetDirectlyBelow) + preset = Q3DCamera::CameraPresetFrontLow; +} + +void ScatterDataModifier::shadowQualityUpdatedByVisual(QAbstract3DGraph::ShadowQuality sq) +{ + int quality = int(sq); + emit shadowQualityChanged(quality); // connected to a checkbox in scattergraph.cpp +} + +void ScatterDataModifier::changeShadowQuality(int quality) +{ + QAbstract3DGraph::ShadowQuality sq = QAbstract3DGraph::ShadowQuality(quality); + m_graph->setShadowQuality(sq); +} + +void ScatterDataModifier::setBackgroundEnabled(int enabled) +{ + m_graph->activeTheme()->setBackgroundEnabled(enabled == Qt::Checked); +} + +void ScatterDataModifier::setGridEnabled(int enabled) +{ + m_graph->activeTheme()->setGridEnabled(enabled == Qt::Checked); +} + +void ScatterDataModifier::toggleItemCount() +{ + if (m_itemCount == numberOfItems) { + m_itemCount = lowerNumberOfItems; + m_curveDivider = lowerCurveDivider; + } else { + m_itemCount = numberOfItems; + m_curveDivider = curveDivider; + } + m_graph->seriesList().at(0)->dataProxy()->resetArray(0); + addData(); +} + +void ScatterDataModifier::toggleRanges() +{ + if (!m_autoAdjust) { + m_graph->axisX()->setAutoAdjustRange(true); + m_graph->axisZ()->setAutoAdjustRange(true); + m_inputHandler->setDragSpeedModifier(1.5f); + m_autoAdjust = true; + } else { + m_graph->axisX()->setRange(-10.0f, 10.0f); + m_graph->axisZ()->setRange(-10.0f, 10.0f); + m_inputHandler->setDragSpeedModifier(15.0f); + m_autoAdjust = false; + } +} + +QVector3D ScatterDataModifier::randVector() +{ + auto *generator = QRandomGenerator::global(); + const auto x = float(generator->bounded(100)) / 2.0f - float(generator->bounded(100)) / 2.0f; + const auto y = float(generator->bounded(100)) / 100.0f - float(generator->bounded(100)) / 100.0f; + const auto z = float(generator->bounded(100)) / 2.0f - float(generator->bounded(100)) / 2.0f; + return {x, y, z}; +} diff --git a/examples/datavisualization/graphgallery/scatterdatamodifier.h b/examples/datavisualization/graphgallery/scatterdatamodifier.h new file mode 100644 index 00000000..53f557e6 --- /dev/null +++ b/examples/datavisualization/graphgallery/scatterdatamodifier.h @@ -0,0 +1,49 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef SCATTERDATAMODIFIER_H +#define SCATTERDATAMODIFIER_H + +#include "axesinputhandler.h" + +#include <QtDataVisualization/q3dscatter.h> +#include <QtDataVisualization/qabstract3dseries.h> + +class ScatterDataModifier : public QObject +{ + Q_OBJECT +public: + explicit ScatterDataModifier(Q3DScatter *scatter, QObject *parent); + + void addData(); + +public Q_SLOTS: + void setBackgroundEnabled(int enabled); + void setGridEnabled(int enabled); + void setSmoothDots(int smooth); + void changePresetCamera(); + void toggleItemCount(); + void toggleRanges(); + void changeStyle(int style); + void changeTheme(int theme); + void changeShadowQuality(int quality); + void shadowQualityUpdatedByVisual(QAbstract3DGraph::ShadowQuality shadowQuality); + +Q_SIGNALS: + void backgroundEnabledChanged(bool enabled); + void gridEnabledChanged(bool enabled); + void shadowQualityChanged(int quality); + +private: + QVector3D randVector(); + Q3DScatter *m_graph = nullptr; + QAbstract3DSeries::Mesh m_style = QAbstract3DSeries::MeshSphere; + bool m_smooth = true; + int m_itemCount; + float m_curveDivider; + + AxesInputHandler *m_inputHandler; + bool m_autoAdjust = true; +}; + +#endif diff --git a/examples/datavisualization/graphgallery/scattergraph.cpp b/examples/datavisualization/graphgallery/scattergraph.cpp new file mode 100644 index 00000000..a426c10a --- /dev/null +++ b/examples/datavisualization/graphgallery/scattergraph.cpp @@ -0,0 +1,142 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "scattergraph.h" +#include "scatterdatamodifier.h" + +#include <QtWidgets/qboxlayout.h> +#include <QtWidgets/qcheckbox.h> +#include <QtWidgets/qcombobox.h> +#include <QtWidgets/qlabel.h> +#include <QtWidgets/qcommandlinkbutton.h> + +using namespace Qt::StringLiterals; + +ScatterGraph::ScatterGraph() +{ + m_scatterGraph = new Q3DScatter(); +} + +ScatterGraph::~ScatterGraph() = default; + +bool ScatterGraph::initialize(const QSize &minimumGraphSize, const QSize &maximumGraphSize) +{ + if (!m_scatterGraph->hasContext()) + return false; + + m_scatterWidget = new QWidget; + auto *hLayout = new QHBoxLayout(m_scatterWidget); + m_container = QWidget::createWindowContainer(m_scatterGraph, m_scatterWidget); + m_container->setMinimumSize(minimumGraphSize); + m_container->setMaximumSize(maximumGraphSize); + m_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); + m_container->setFocusPolicy(Qt::StrongFocus); + hLayout->addWidget(m_container, 1); + + auto *vLayout = new QVBoxLayout(); + hLayout->addLayout(vLayout); + + auto *cameraButton = new QCommandLinkButton(m_scatterWidget); + cameraButton->setText(u"Change camera preset"_s); + cameraButton->setDescription(u"Switch between a number of preset camera positions"_s); + cameraButton->setIconSize(QSize(0, 0)); + + auto *itemCountButton = new QCommandLinkButton(m_scatterWidget); + itemCountButton->setText(u"Toggle item count"_s); + itemCountButton->setDescription(u"Switch between 900 and 10000 data points"_s); + itemCountButton->setIconSize(QSize(0, 0)); + + auto *rangeButton = new QCommandLinkButton(m_scatterWidget); + rangeButton->setText(u"Toggle axis ranges"_s); + rangeButton->setDescription(u"Switch between automatic axis ranges and preset ranges"_s); + rangeButton->setIconSize(QSize(0, 0)); + + auto *backgroundCheckBox = new QCheckBox(m_scatterWidget); + backgroundCheckBox->setText(u"Show background"_s); + backgroundCheckBox->setChecked(true); + + auto *gridCheckBox = new QCheckBox(m_scatterWidget); + gridCheckBox->setText(u"Show grid"_s); + gridCheckBox->setChecked(true); + + auto *smoothCheckBox = new QCheckBox(m_scatterWidget); + smoothCheckBox->setText(u"Smooth dots"_s); + smoothCheckBox->setChecked(true); + + auto *itemStyleList = new QComboBox(m_scatterWidget); + itemStyleList->addItem(u"Sphere"_s, QAbstract3DSeries::MeshSphere); + itemStyleList->addItem(u"Cube"_s, QAbstract3DSeries::MeshCube); + itemStyleList->addItem(u"Minimal"_s, QAbstract3DSeries::MeshMinimal); + itemStyleList->addItem(u"Point"_s, QAbstract3DSeries::MeshPoint); + itemStyleList->setCurrentIndex(0); + + auto *themeList = new QComboBox(m_scatterWidget); + themeList->addItem(u"Qt"_s); + themeList->addItem(u"Primary Colors"_s); + themeList->addItem(u"Digia"_s); + themeList->addItem(u"Stone Moss"_s); + themeList->addItem(u"Army Blue"_s); + themeList->addItem(u"Retro"_s); + themeList->addItem(u"Ebony"_s); + themeList->addItem(u"Isabelle"_s); + themeList->setCurrentIndex(3); + + auto *shadowQuality = new QComboBox(m_scatterWidget); + shadowQuality->addItem(u"None"_s); + shadowQuality->addItem(u"Low"_s); + shadowQuality->addItem(u"Medium"_s); + shadowQuality->addItem(u"High"_s); + shadowQuality->addItem(u"Low Soft"_s); + shadowQuality->addItem(u"Medium Soft"_s); + shadowQuality->addItem(u"High Soft"_s); + shadowQuality->setCurrentIndex(6); + + vLayout->addWidget(cameraButton); + vLayout->addWidget(itemCountButton); + vLayout->addWidget(rangeButton); + vLayout->addWidget(backgroundCheckBox); + vLayout->addWidget(gridCheckBox); + vLayout->addWidget(smoothCheckBox); + vLayout->addWidget(new QLabel(u"Change dot style"_s)); + vLayout->addWidget(itemStyleList); + vLayout->addWidget(new QLabel(u"Change theme"_s)); + vLayout->addWidget(themeList); + vLayout->addWidget(new QLabel(u"Adjust shadow quality"_s)); + vLayout->addWidget(shadowQuality, 1, Qt::AlignTop); + + auto *modifier = new ScatterDataModifier(m_scatterGraph, this); + + QObject::connect(cameraButton, &QCommandLinkButton::clicked, modifier, + &ScatterDataModifier::changePresetCamera); + QObject::connect(itemCountButton, &QCommandLinkButton::clicked, modifier, + &ScatterDataModifier::toggleItemCount); + QObject::connect(rangeButton, &QCommandLinkButton::clicked, modifier, + &ScatterDataModifier::toggleRanges); + + QObject::connect(backgroundCheckBox, &QCheckBox::stateChanged, modifier, + &ScatterDataModifier::setBackgroundEnabled); + QObject::connect(gridCheckBox, &QCheckBox::stateChanged, modifier, + &ScatterDataModifier::setGridEnabled); + QObject::connect(smoothCheckBox, &QCheckBox::stateChanged, modifier, + &ScatterDataModifier::setSmoothDots); + + QObject::connect(modifier, &ScatterDataModifier::backgroundEnabledChanged, + backgroundCheckBox, &QCheckBox::setChecked); + QObject::connect(modifier, &ScatterDataModifier::gridEnabledChanged, + gridCheckBox, &QCheckBox::setChecked); + QObject::connect(itemStyleList, &QComboBox::currentIndexChanged, modifier, + &ScatterDataModifier::changeStyle); + + QObject::connect(themeList, &QComboBox::currentIndexChanged, modifier, + &ScatterDataModifier::changeTheme); + + QObject::connect(shadowQuality, &QComboBox::currentIndexChanged, modifier, + &ScatterDataModifier::changeShadowQuality); + + QObject::connect(modifier, &ScatterDataModifier::shadowQualityChanged, shadowQuality, + &QComboBox::setCurrentIndex); + QObject::connect(m_scatterGraph, &Q3DScatter::shadowQualityChanged, modifier, + &ScatterDataModifier::shadowQualityUpdatedByVisual); + + return true; +} diff --git a/examples/datavisualization/graphgallery/scattergraph.h b/examples/datavisualization/graphgallery/scattergraph.h new file mode 100644 index 00000000..eb8c7c52 --- /dev/null +++ b/examples/datavisualization/graphgallery/scattergraph.h @@ -0,0 +1,26 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef SCATTERGRAPH_H +#define SCATTERGRAPH_H + +#include <QtCore/qobject.h> +#include <QtDataVisualization/q3dscatter.h> + +class ScatterGraph : public QObject +{ + Q_OBJECT +public: + ScatterGraph(); + ~ScatterGraph(); + + bool initialize(const QSize &minimumGraphSize, const QSize &maximumGraphSize); + QWidget *scatterWidget() { return m_scatterWidget; } + +private: + Q3DScatter *m_scatterGraph = nullptr; + QWidget *m_container = nullptr; + QWidget *m_scatterWidget = nullptr; +}; + +#endif diff --git a/examples/datavisualization/graphgallery/surfacegraph.cpp b/examples/datavisualization/graphgallery/surfacegraph.cpp new file mode 100644 index 00000000..88cbc72f --- /dev/null +++ b/examples/datavisualization/graphgallery/surfacegraph.cpp @@ -0,0 +1,346 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "surfacegraph.h" +#include "surfacegraphmodifier.h" + +#include <QtWidgets/qboxlayout.h> +#include <QtWidgets/qcheckbox.h> +#include <QtWidgets/qcombobox.h> +#include <QtWidgets/qradiobutton.h> +#include <QtWidgets/qgroupbox.h> +#include <QtWidgets/qlabel.h> +#include <QtWidgets/qcommandlinkbutton.h> +#include <QtGui/qpainter.h> + +using namespace Qt::StringLiterals; + +static QPixmap gradientBtoYPB_Pixmap() +{ + QLinearGradient grBtoY(0, 0, 1, 100); + grBtoY.setColorAt(1.f, Qt::black); + grBtoY.setColorAt(0.67f, Qt::blue); + grBtoY.setColorAt(0.33f, Qt::red); + grBtoY.setColorAt(0.f, Qt::yellow); + QPixmap pm(24, 100); + QPainter pmp(&pm); + pmp.setBrush(QBrush(grBtoY)); + pmp.setPen(Qt::NoPen); + pmp.drawRect(0, 0, 24, 100); + return pm; +} + +static QPixmap gradientGtoRPB_Pixmap() +{ + QLinearGradient grGtoR(0, 0, 1, 100); + grGtoR.setColorAt(1.f, Qt::darkGreen); + grGtoR.setColorAt(0.5f, Qt::yellow); + grGtoR.setColorAt(0.2f, Qt::red); + grGtoR.setColorAt(0.f, Qt::darkRed); + QPixmap pm(24, 100); + QPainter pmp(&pm); + pmp.setBrush(QBrush(grGtoR)); + pmp.drawRect(0, 0, 24, 100); + return pm; +} + +static QPixmap highlightPixmap() +{ + constexpr int height = 400; + constexpr int width = 110; + constexpr int border = 10; + QLinearGradient gr(0, 0, 1, height - 2 * border); + gr.setColorAt(1.f, Qt::black); + gr.setColorAt(0.8f, Qt::darkGreen); + gr.setColorAt(0.6f, Qt::green); + gr.setColorAt(0.4f, Qt::yellow); + gr.setColorAt(0.2f, Qt::red); + gr.setColorAt(0.f, Qt::darkRed); + + QPixmap pmHighlight(width, height); + pmHighlight.fill(Qt::transparent); + QPainter pmpHighlight(&pmHighlight); + pmpHighlight.setBrush(QBrush(gr)); + pmpHighlight.setPen(Qt::NoPen); + pmpHighlight.drawRect(border, border, 35, height - 2 * border); + pmpHighlight.setPen(Qt::black); + int step = (height - 2 * border) / 5; + for (int i = 0; i < 6; ++i) { + int yPos = i * step + border; + pmpHighlight.drawLine(border, yPos, 55, yPos); + const int height = 550 - (i * 110); + pmpHighlight.drawText(60, yPos + 2, QString::number(height) + u" m"_s); + } + return pmHighlight; +} + +SurfaceGraph::SurfaceGraph() +{ + m_surfaceGraph = new Q3DSurface(); +} + +SurfaceGraph::~SurfaceGraph() = default; + +bool SurfaceGraph::initialize(const QSize &minimumGraphSize, const QSize &maximumGraphSize) +{ + if (!m_surfaceGraph->hasContext()) + return false; + + m_surfaceWidget = new QWidget; + auto *hLayout = new QHBoxLayout(m_surfaceWidget); + m_container = QWidget::createWindowContainer(m_surfaceGraph, m_surfaceWidget); + m_container->setMinimumSize(minimumGraphSize); + m_container->setMaximumSize(maximumGraphSize); + m_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); + m_container->setFocusPolicy(Qt::StrongFocus); + hLayout->addWidget(m_container, 1); + + auto *vLayout = new QVBoxLayout(); + hLayout->addLayout(vLayout); + vLayout->setAlignment(Qt::AlignTop); + + // Create control widgets + auto *modelGroupBox = new QGroupBox(u"Model"_s); + + auto *sqrtSinModelRB = new QRadioButton(m_surfaceWidget); + sqrtSinModelRB->setText(u"Sqrt && Sin"_s); + sqrtSinModelRB->setChecked(false); + + auto *heightMapModelRB = new QRadioButton(m_surfaceWidget); + heightMapModelRB->setText(u"Multiseries\nHeight Map"_s); + heightMapModelRB->setChecked(false); + + auto *texturedModelRB = new QRadioButton(m_surfaceWidget); + texturedModelRB->setText(u"Textured\nTopography"_s); + texturedModelRB->setChecked(false); + + auto *modelVBox = new QVBoxLayout; + modelVBox->addWidget(sqrtSinModelRB); + modelVBox->addWidget(heightMapModelRB); + modelVBox->addWidget(texturedModelRB); + modelGroupBox->setLayout(modelVBox); + + auto *selectionGroupBox = new QGroupBox(u"Graph Selection Mode"_s); + + auto *modeNoneRB = new QRadioButton(m_surfaceWidget); + modeNoneRB->setText(u"No selection"_s); + modeNoneRB->setChecked(false); + + auto *modeItemRB = new QRadioButton(m_surfaceWidget); + modeItemRB->setText(u"Item"_s); + modeItemRB->setChecked(false); + + auto *modeSliceRowRB = new QRadioButton(m_surfaceWidget); + modeSliceRowRB->setText(u"Row Slice"_s); + modeSliceRowRB->setChecked(false); + + auto *modeSliceColumnRB = new QRadioButton(m_surfaceWidget); + modeSliceColumnRB->setText(u"Column Slice"_s); + modeSliceColumnRB->setChecked(false); + + auto *selectionVBox = new QVBoxLayout; + selectionVBox->addWidget(modeNoneRB); + selectionVBox->addWidget(modeItemRB); + selectionVBox->addWidget(modeSliceRowRB); + selectionVBox->addWidget(modeSliceColumnRB); + selectionGroupBox->setLayout(selectionVBox); + + auto *axisGroupBox = new QGroupBox(u"Axis ranges"_s); + + auto *axisMinSliderX = new QSlider(Qt::Horizontal); + axisMinSliderX->setMinimum(0); + axisMinSliderX->setTickInterval(1); + axisMinSliderX->setEnabled(true); + auto *axisMaxSliderX = new QSlider(Qt::Horizontal); + axisMaxSliderX->setMinimum(1); + axisMaxSliderX->setTickInterval(1); + axisMaxSliderX->setEnabled(true); + auto *axisMinSliderZ = new QSlider(Qt::Horizontal); + axisMinSliderZ->setMinimum(0); + axisMinSliderZ->setTickInterval(1); + axisMinSliderZ->setEnabled(true); + auto *axisMaxSliderZ = new QSlider(Qt::Horizontal); + axisMaxSliderZ->setMinimum(1); + axisMaxSliderZ->setTickInterval(1); + axisMaxSliderZ->setEnabled(true); + + auto *axisVBox = new QVBoxLayout; + axisVBox->addWidget(new QLabel(u"Column range"_s)); + axisVBox->addWidget(axisMinSliderX); + axisVBox->addWidget(axisMaxSliderX); + axisVBox->addWidget(new QLabel(u"Row range"_s)); + axisVBox->addWidget(axisMinSliderZ); + axisVBox->addWidget(axisMaxSliderZ); + axisGroupBox->setLayout(axisVBox); + + // Mode-dependent controls + // sqrt-sin + auto *colorGroupBox = new QGroupBox(u"Custom gradient"_s); + + QPixmap pixmap = gradientBtoYPB_Pixmap(); + auto *gradientBtoYPB = new QPushButton(m_surfaceWidget); + gradientBtoYPB->setIcon(QIcon(pixmap)); + gradientBtoYPB->setIconSize(pixmap.size()); + + pixmap = gradientGtoRPB_Pixmap(); + auto *gradientGtoRPB = new QPushButton(m_surfaceWidget); + gradientGtoRPB->setIcon(QIcon(pixmap)); + gradientGtoRPB->setIconSize(pixmap.size()); + auto *colorHBox = new QHBoxLayout; + colorHBox->addWidget(gradientBtoYPB); + colorHBox->addWidget(gradientGtoRPB); + colorGroupBox->setLayout(colorHBox); + + // Multiseries heightmap + auto *showGroupBox = new QGroupBox(u"_show Object"_s); + showGroupBox->setVisible(false); + + auto *checkboxShowOilRigOne = new QCheckBox(u"Oil Rig 1"_s); + checkboxShowOilRigOne->setChecked(true); + + auto *checkboxShowOilRigTwo = new QCheckBox(u"Oil Rig 2"_s); + checkboxShowOilRigTwo->setChecked(true); + + auto *checkboxShowRefinery = new QCheckBox(u"Refinery"_s); + + auto *showVBox = new QVBoxLayout; + showVBox->addWidget(checkboxShowOilRigOne); + showVBox->addWidget(checkboxShowOilRigTwo); + showVBox->addWidget(checkboxShowRefinery); + showGroupBox->setLayout(showVBox); + + auto *visualsGroupBox = new QGroupBox(u"Visuals"_s); + visualsGroupBox->setVisible(false); + + auto *checkboxVisualsSeeThrough = new QCheckBox(u"See-Through"_s); + + auto *checkboxHighlightOil = new QCheckBox(u"Highlight Oil"_s); + + auto *checkboxShowShadows = new QCheckBox(u"Shadows"_s); + checkboxShowShadows->setChecked(true); + + auto *visualVBox = new QVBoxLayout; + visualVBox->addWidget(checkboxVisualsSeeThrough); + visualVBox->addWidget(checkboxHighlightOil); + visualVBox->addWidget(checkboxShowShadows); + visualsGroupBox->setLayout(visualVBox); + + auto *labelSelection = new QLabel(u"Selection:"_s); + labelSelection->setVisible(false); + + auto *labelSelectedItem = new QLabel(u"Nothing"_s); + labelSelectedItem->setVisible(false); + + // Textured topography heightmap + auto *enableTexture = new QCheckBox(u"Surface texture"_s); + enableTexture->setVisible(false); + + auto *label = new QLabel(m_surfaceWidget); + label->setPixmap(highlightPixmap()); + + auto *heightMapGroupBox = new QGroupBox(u"Highlight color map"_s); + auto *colorMapVBox = new QVBoxLayout; + colorMapVBox->addWidget(label); + heightMapGroupBox->setLayout(colorMapVBox); + heightMapGroupBox->setVisible(false); + + // Populate vertical layout + // Common + vLayout->addWidget(modelGroupBox); + vLayout->addWidget(selectionGroupBox); + vLayout->addWidget(axisGroupBox); + + // Sqrt Sin + vLayout->addWidget(colorGroupBox); + + // Multiseries heightmap + vLayout->addWidget(showGroupBox); + vLayout->addWidget(visualsGroupBox); + vLayout->addWidget(labelSelection); + vLayout->addWidget(labelSelectedItem); + + // Textured topography + vLayout->addWidget(heightMapGroupBox); + vLayout->addWidget(enableTexture); + + // Create the controller + auto *modifier = new SurfaceGraphModifier(m_surfaceGraph, labelSelectedItem, this); + + // Connect widget controls to controller + QObject::connect(heightMapModelRB, &QRadioButton::toggled, + modifier, &SurfaceGraphModifier::enableHeightMapModel); + QObject::connect(sqrtSinModelRB, &QRadioButton::toggled, + modifier, &SurfaceGraphModifier::enableSqrtSinModel); + QObject::connect(texturedModelRB, &QRadioButton::toggled, + modifier, &SurfaceGraphModifier::enableTopographyModel); + + QObject::connect(modeNoneRB, &QRadioButton::toggled, + modifier, &SurfaceGraphModifier::toggleModeNone); + QObject::connect(modeItemRB, &QRadioButton::toggled, + modifier, &SurfaceGraphModifier::toggleModeItem); + QObject::connect(modeSliceRowRB, &QRadioButton::toggled, + modifier, &SurfaceGraphModifier::toggleModeSliceRow); + QObject::connect(modeSliceColumnRB, &QRadioButton::toggled, + modifier, &SurfaceGraphModifier::toggleModeSliceColumn); + + QObject::connect(axisMinSliderX, &QSlider::valueChanged, + modifier, &SurfaceGraphModifier::adjustXMin); + QObject::connect(axisMaxSliderX, &QSlider::valueChanged, + modifier, &SurfaceGraphModifier::adjustXMax); + QObject::connect(axisMinSliderZ, &QSlider::valueChanged, + modifier, &SurfaceGraphModifier::adjustZMin); + QObject::connect(axisMaxSliderZ, &QSlider::valueChanged, + modifier, &SurfaceGraphModifier::adjustZMax); + + // Mode dependent connections + QObject::connect(gradientBtoYPB, &QPushButton::pressed, + modifier, &SurfaceGraphModifier::setBlackToYellowGradient); + QObject::connect(gradientGtoRPB, &QPushButton::pressed, + modifier, &SurfaceGraphModifier::setGreenToRedGradient); + + QObject::connect(checkboxShowOilRigOne, &QCheckBox::stateChanged, + modifier, &SurfaceGraphModifier::toggleItemOne); + QObject::connect(checkboxShowOilRigTwo, &QCheckBox::stateChanged, + modifier, &SurfaceGraphModifier::toggleItemTwo); + QObject::connect(checkboxShowRefinery, &QCheckBox::stateChanged, + modifier, &SurfaceGraphModifier::toggleItemThree); + + QObject::connect(checkboxVisualsSeeThrough, &QCheckBox::stateChanged, + modifier, &SurfaceGraphModifier::toggleSeeThrough); + QObject::connect(checkboxHighlightOil, &QCheckBox::stateChanged, + modifier, &SurfaceGraphModifier::toggleOilHighlight); + QObject::connect(checkboxShowShadows, &QCheckBox::stateChanged, + modifier, &SurfaceGraphModifier::toggleShadows); + + QObject::connect(enableTexture, &QCheckBox::stateChanged, + modifier, &SurfaceGraphModifier::toggleSurfaceTexture); + + // Connections to disable features depending on mode + QObject::connect(sqrtSinModelRB, &QRadioButton::toggled, + colorGroupBox, &QGroupBox::setVisible); + + QObject::connect(heightMapModelRB, &QRadioButton::toggled, + showGroupBox, &QGroupBox::setVisible); + QObject::connect(heightMapModelRB, &QRadioButton::toggled, + visualsGroupBox, &QGroupBox::setVisible); + QObject::connect(heightMapModelRB, &QRadioButton::toggled, + labelSelection, &QLabel::setVisible); + QObject::connect(heightMapModelRB, &QRadioButton::toggled, + labelSelectedItem, &QLabel::setVisible); + + QObject::connect(texturedModelRB, &QRadioButton::toggled, + enableTexture, &QLabel::setVisible); + QObject::connect(texturedModelRB, &QRadioButton::toggled, + heightMapGroupBox, &QGroupBox::setVisible); + + modifier->setAxisMinSliderX(axisMinSliderX); + modifier->setAxisMaxSliderX(axisMaxSliderX); + modifier->setAxisMinSliderZ(axisMinSliderZ); + modifier->setAxisMaxSliderZ(axisMaxSliderZ); + + sqrtSinModelRB->setChecked(true); + modeItemRB->setChecked(true); + enableTexture->setChecked(true); + + return true; +} diff --git a/examples/datavisualization/graphgallery/surfacegraph.h b/examples/datavisualization/graphgallery/surfacegraph.h new file mode 100644 index 00000000..5ec29930 --- /dev/null +++ b/examples/datavisualization/graphgallery/surfacegraph.h @@ -0,0 +1,26 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef SURFACEGRAPH_H +#define SURFACEGRAPH_H + +#include <QtCore/qobject.h> +#include <QtDataVisualization/q3dsurface.h> + +class SurfaceGraph : public QObject +{ + Q_OBJECT +public: + SurfaceGraph(); + ~SurfaceGraph(); + + bool initialize(const QSize &minimumGraphSize, const QSize &maximumGraphSize); + QWidget *surfaceWidget() { return m_surfaceWidget; } + +private: + Q3DSurface *m_surfaceGraph = nullptr; + QWidget *m_container = nullptr; + QWidget *m_surfaceWidget = nullptr; +}; + +#endif diff --git a/examples/datavisualization/graphgallery/surfacegraphmodifier.cpp b/examples/datavisualization/graphgallery/surfacegraphmodifier.cpp new file mode 100644 index 00000000..190a96b9 --- /dev/null +++ b/examples/datavisualization/graphgallery/surfacegraphmodifier.cpp @@ -0,0 +1,647 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "surfacegraphmodifier.h" +#include "highlightseries.h" +#include "topographicseries.h" +#include "custominputhandler.h" + +#include <QtDataVisualization/qvalue3daxis.h> +#include <QtDataVisualization/q3dtheme.h> +#include <QtGui/qimage.h> +#include <QtCore/qmath.h> + +using namespace Qt::StringLiterals; + +const int sampleCountX = 150; +const int sampleCountZ = 150; +const int heightMapGridStepX = 6; +const int heightMapGridStepZ = 6; +const float sampleMin = -8.f; +const float sampleMax = 8.f; + +const float areaWidth = 8000.f; +const float areaHeight = 8000.f; +const float aspectRatio = 0.1389f; +const float minRange = areaWidth * 0.49f; + +SurfaceGraphModifier::SurfaceGraphModifier(Q3DSurface *surface, QLabel *label, QObject *parent) : + QObject(parent), + m_graph(surface), + m_textField(label) +{ + m_graph->scene()->activeCamera()->setZoomLevel(85.f); + m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetIsometricRight); + m_graph->activeTheme()->setType(Q3DTheme::ThemeRetro); + + m_graph->setAxisX(new QValue3DAxis); + m_graph->setAxisY(new QValue3DAxis); + m_graph->setAxisZ(new QValue3DAxis); + + // + // Sqrt Sin + // + //! [0] + m_sqrtSinProxy = new QSurfaceDataProxy(); + m_sqrtSinSeries = new QSurface3DSeries(m_sqrtSinProxy); + //! [0] + fillSqrtSinProxy(); + + // + // Multisurface heightmap + // + //! [2] + // Create the first surface layer + QImage heightMapImageOne(":/data/layer_1.png"); + m_heightMapProxyOne = new QHeightMapSurfaceDataProxy(heightMapImageOne); + m_heightMapSeriesOne = new QSurface3DSeries(m_heightMapProxyOne); + m_heightMapSeriesOne->setItemLabelFormat(u"(@xLabel, @zLabel): @yLabel"_s); + m_heightMapProxyOne->setValueRanges(34.f, 40.f, 18.f, 24.f); + //! [2] + + // Create the other 2 surface layers + QImage heightMapImageTwo(":/data/layer_2.png"); + m_heightMapProxyTwo = new QHeightMapSurfaceDataProxy(heightMapImageTwo); + m_heightMapSeriesTwo = new QSurface3DSeries(m_heightMapProxyTwo); + m_heightMapSeriesTwo->setItemLabelFormat(u"(@xLabel, @zLabel): @yLabel"_s); + m_heightMapProxyTwo->setValueRanges(34.f, 40.f, 18.f, 24.f); + + QImage heightMapImageThree(":/data/layer_3.png"); + m_heightMapProxyThree = new QHeightMapSurfaceDataProxy(heightMapImageThree); + m_heightMapSeriesThree = new QSurface3DSeries(m_heightMapProxyThree); + m_heightMapSeriesThree->setItemLabelFormat(u"(@xLabel, @zLabel): @yLabel"_s); + m_heightMapProxyThree->setValueRanges(34.f, 40.f, 18.f, 24.f); + + // The images are the same size, so it's enough to get the dimensions from one + m_heightMapWidth = heightMapImageOne.width(); + m_heightMapHeight = heightMapImageOne.height(); + + // Set the gradients for multi-surface layers + QLinearGradient grOne; + grOne.setColorAt(0.f, Qt::black); + grOne.setColorAt(0.38f, Qt::darkYellow); + grOne.setColorAt(0.39f, Qt::darkGreen); + grOne.setColorAt(0.5f, Qt::darkGray); + grOne.setColorAt(1.f, Qt::gray); + m_heightMapSeriesOne->setBaseGradient(grOne); + m_heightMapSeriesOne->setColorStyle(Q3DTheme::ColorStyleRangeGradient); + + QLinearGradient grTwo; + grTwo.setColorAt(0.39f, Qt::blue); + grTwo.setColorAt(0.4f, Qt::white); + m_heightMapSeriesTwo->setBaseGradient(grTwo); + m_heightMapSeriesTwo->setColorStyle(Q3DTheme::ColorStyleRangeGradient); + + QLinearGradient grThree; + grThree.setColorAt(0.f, Qt::white); + grThree.setColorAt(0.05f, Qt::black); + m_heightMapSeriesThree->setBaseGradient(grThree); + m_heightMapSeriesThree->setColorStyle(Q3DTheme::ColorStyleRangeGradient); + + // Custom items and label + connect(m_graph, &QAbstract3DGraph::selectedElementChanged, + this, &SurfaceGraphModifier::handleElementSelected); + + m_selectionAnimation = new QPropertyAnimation(this); + m_selectionAnimation->setPropertyName("scaling"); + m_selectionAnimation->setDuration(500); + m_selectionAnimation->setLoopCount(-1); + + QFont titleFont = QFont("Century Gothic", 30); + titleFont.setBold(true); + m_titleLabel = new QCustom3DLabel("Oil Rigs on Imaginary Sea", titleFont, + QVector3D(0.f, 1.2f, 0.f), + QVector3D(1.f, 1.f, 0.f), + QQuaternion()); + m_titleLabel->setPositionAbsolute(true); + m_titleLabel->setFacingCamera(true); + m_titleLabel->setBackgroundColor(QColor(0x66cdaa)); + m_graph->addCustomItem(m_titleLabel); + m_titleLabel->setVisible(false); + + // Make two of the custom object visible + toggleItemOne(true); + toggleItemTwo(true); + + // + // Topographic map + // + m_topography = new TopographicSeries(); + m_topography->setTopographyFile(":/data/topography.png", areaWidth, areaHeight); + m_topography->setItemLabelFormat(u"@yLabel m"_s); + + m_highlight = new HighlightSeries(); + m_highlight->setTopographicSeries(m_topography); + m_highlight->setMinHeight(minRange * aspectRatio); + m_highlight->handleGradientChange(areaWidth * aspectRatio); + //! [16] + QObject::connect(m_graph->axisY(), &QValue3DAxis::maxChanged, + m_highlight, &HighlightSeries::handleGradientChange); + //! [16] + + m_customInputHandler = new CustomInputHandler(m_graph); + m_customInputHandler->setHighlightSeries(m_highlight); + m_customInputHandler->setAxes(m_graph->axisX(), m_graph->axisY(), m_graph->axisZ()); + m_customInputHandler->setLimits(0.f, areaWidth, minRange); + m_customInputHandler->setAspectRatio(aspectRatio); +} + +void SurfaceGraphModifier::fillSqrtSinProxy() +{ + float stepX = (sampleMax - sampleMin) / float(sampleCountX - 1); + float stepZ = (sampleMax - sampleMin) / float(sampleCountZ - 1); + + //! [1] + auto *dataArray = new QSurfaceDataArray; + dataArray->reserve(sampleCountZ); + for (int i = 0 ; i < sampleCountZ ; ++i) { + auto *newRow = new QSurfaceDataRow; + newRow->reserve(sampleCountX); + // Keep values within range bounds, since just adding step can cause minor drift due + // to the rounding errors. + float z = qMin(sampleMax, (i * stepZ + sampleMin)); + for (int j = 0; j < sampleCountX; ++j) { + float x = qMin(sampleMax, (j * stepX + sampleMin)); + float R = qSqrt(z * z + x * x) + 0.01f; + float y = (qSin(R) / R + 0.24f) * 1.61f; + newRow->append(QSurfaceDataItem({x, y, z})); + } + dataArray->append(newRow); + } + + m_sqrtSinProxy->resetArray(dataArray); + //! [1] +} + +void SurfaceGraphModifier::enableSqrtSinModel(bool enable) +{ + if (enable) { + //! [3] + m_sqrtSinSeries->setDrawMode(QSurface3DSeries::DrawSurfaceAndWireframe); + m_sqrtSinSeries->setFlatShadingEnabled(true); + + m_graph->axisX()->setLabelFormat("%.2f"); + m_graph->axisZ()->setLabelFormat("%.2f"); + m_graph->axisX()->setRange(sampleMin, sampleMax); + m_graph->axisY()->setRange(0.f, 2.f); + m_graph->axisZ()->setRange(sampleMin, sampleMax); + m_graph->axisX()->setLabelAutoRotation(30.f); + m_graph->axisY()->setLabelAutoRotation(90.f); + m_graph->axisZ()->setLabelAutoRotation(30.f); + + m_graph->removeSeries(m_heightMapSeriesOne); + m_graph->removeSeries(m_heightMapSeriesTwo); + m_graph->removeSeries(m_heightMapSeriesThree); + m_graph->removeSeries(m_topography); + m_graph->removeSeries(m_highlight); + + m_graph->addSeries(m_sqrtSinSeries); + //! [3] + + m_titleLabel->setVisible(false); + m_graph->axisX()->setTitleVisible(false); + m_graph->axisY()->setTitleVisible(false); + m_graph->axisZ()->setTitleVisible(false); + + m_graph->axisX()->setTitle({}); + m_graph->axisY()->setTitle({}); + m_graph->axisZ()->setTitle({}); + + m_graph->setActiveInputHandler(m_defaultInputHandler); + + //! [6] + // Reset range sliders for Sqrt & Sin + m_rangeMinX = sampleMin; + m_rangeMinZ = sampleMin; + m_stepX = (sampleMax - sampleMin) / float(sampleCountX - 1); + m_stepZ = (sampleMax - sampleMin) / float(sampleCountZ - 1); + m_axisMinSliderX->setMinimum(0); + m_axisMinSliderX->setMaximum(sampleCountX - 2); + m_axisMinSliderX->setValue(0); + m_axisMaxSliderX->setMinimum(1); + m_axisMaxSliderX->setMaximum(sampleCountX - 1); + m_axisMaxSliderX->setValue(sampleCountX - 1); + m_axisMinSliderZ->setMinimum(0); + m_axisMinSliderZ->setMaximum(sampleCountZ - 2); + m_axisMinSliderZ->setValue(0); + m_axisMaxSliderZ->setMinimum(1); + m_axisMaxSliderZ->setMaximum(sampleCountZ - 1); + m_axisMaxSliderZ->setValue(sampleCountZ - 1); + //! [6] + } +} + +void SurfaceGraphModifier::enableHeightMapModel(bool enable) +{ + if (enable) { + m_heightMapSeriesOne->setDrawMode(QSurface3DSeries::DrawSurface); + m_heightMapSeriesOne->setFlatShadingEnabled(false); + m_heightMapSeriesTwo->setDrawMode(QSurface3DSeries::DrawSurface); + m_heightMapSeriesTwo->setFlatShadingEnabled(false); + m_heightMapSeriesThree->setDrawMode(QSurface3DSeries::DrawSurface); + m_heightMapSeriesThree->setFlatShadingEnabled(false); + + m_graph->axisX()->setLabelFormat("%.1f N"); + m_graph->axisZ()->setLabelFormat("%.1f E"); + m_graph->axisX()->setRange(34.f, 40.f); + //! [4] + m_graph->axisY()->setAutoAdjustRange(true); + //! [4] + m_graph->axisZ()->setRange(18.f, 24.f); + + m_graph->axisX()->setTitle(u"Latitude"_s); + m_graph->axisY()->setTitle(u"Height"_s); + m_graph->axisZ()->setTitle(u"Longitude"_s); + + m_graph->removeSeries(m_sqrtSinSeries); + m_graph->removeSeries(m_topography); + m_graph->removeSeries(m_highlight); + m_graph->addSeries(m_heightMapSeriesOne); + m_graph->addSeries(m_heightMapSeriesTwo); + m_graph->addSeries(m_heightMapSeriesThree); + + m_graph->setActiveInputHandler(m_defaultInputHandler); + + m_titleLabel->setVisible(true); + m_graph->axisX()->setTitleVisible(true); + m_graph->axisY()->setTitleVisible(true); + m_graph->axisZ()->setTitleVisible(true); + + // Reset range sliders for height map + int mapGridCountX = m_heightMapWidth / heightMapGridStepX; + int mapGridCountZ = m_heightMapHeight / heightMapGridStepZ; + m_rangeMinX = 34.f; + m_rangeMinZ = 18.f; + m_stepX = 6.f / float(mapGridCountX - 1); + m_stepZ = 6.f / float(mapGridCountZ - 1); + m_axisMinSliderX->setMinimum(0); + m_axisMinSliderX->setMaximum(mapGridCountX - 2); + m_axisMinSliderX->setValue(0); + m_axisMaxSliderX->setMinimum(1); + m_axisMaxSliderX->setMaximum(mapGridCountX - 1); + m_axisMaxSliderX->setValue(mapGridCountX - 1); + m_axisMinSliderZ->setMinimum(0); + m_axisMinSliderZ->setMaximum(mapGridCountZ - 2); + m_axisMinSliderZ->setValue(0); + m_axisMaxSliderZ->setMinimum(1); + m_axisMaxSliderZ->setMaximum(mapGridCountZ - 1); + m_axisMaxSliderZ->setValue(mapGridCountZ - 1); + } +} + +void SurfaceGraphModifier::enableTopographyModel(bool enable) +{ + if (enable) { + m_graph->axisX()->setLabelFormat("%i"); + m_graph->axisZ()->setLabelFormat("%i"); + m_graph->axisX()->setRange(0.f, areaWidth); + m_graph->axisY()->setRange(100.f, areaWidth * aspectRatio); + m_graph->axisZ()->setRange(0.f, areaHeight); + m_graph->axisX()->setLabelAutoRotation(30.f); + m_graph->axisY()->setLabelAutoRotation(90.f); + m_graph->axisZ()->setLabelAutoRotation(30.f); + + m_graph->removeSeries(m_heightMapSeriesOne); + m_graph->removeSeries(m_heightMapSeriesTwo); + m_graph->removeSeries(m_heightMapSeriesThree); + m_graph->addSeries(m_topography); + m_graph->addSeries(m_highlight); + + m_titleLabel->setVisible(false); + m_graph->axisX()->setTitleVisible(false); + m_graph->axisY()->setTitleVisible(false); + m_graph->axisZ()->setTitleVisible(false); + + m_graph->axisX()->setTitle({}); + m_graph->axisY()->setTitle({}); + m_graph->axisZ()->setTitle({}); + + //! [5] + m_graph->setActiveInputHandler(m_customInputHandler); + //! [5] + + // Reset range sliders for topography map + m_rangeMinX = 0.f; + m_rangeMinZ = 0.f; + m_stepX = 1.f; + m_stepZ = 1.f; + m_axisMinSliderX->setMinimum(0); + m_axisMinSliderX->setMaximum(areaWidth - 200); + m_axisMinSliderX->setValue(0); + m_axisMaxSliderX->setMinimum(200); + m_axisMaxSliderX->setMaximum(areaWidth); + m_axisMaxSliderX->setValue(areaWidth); + m_axisMinSliderZ->setMinimum(0); + m_axisMinSliderZ->setMaximum(areaHeight - 200); + m_axisMinSliderZ->setValue(0); + m_axisMaxSliderZ->setMinimum(200); + m_axisMaxSliderZ->setMaximum(areaHeight); + m_axisMaxSliderZ->setValue(areaHeight); + } +} + +void SurfaceGraphModifier::adjustXMin(int min) +{ + float minX = m_stepX * float(min) + m_rangeMinX; + + int max = m_axisMaxSliderX->value(); + if (min >= max) { + max = min + 1; + m_axisMaxSliderX->setValue(max); + } + float maxX = m_stepX * max + m_rangeMinX; + + setAxisXRange(minX, maxX); +} + +void SurfaceGraphModifier::adjustXMax(int max) +{ + float maxX = m_stepX * float(max) + m_rangeMinX; + + int min = m_axisMinSliderX->value(); + if (max <= min) { + min = max - 1; + m_axisMinSliderX->setValue(min); + } + float minX = m_stepX * min + m_rangeMinX; + + setAxisXRange(minX, maxX); +} + +void SurfaceGraphModifier::adjustZMin(int min) +{ + float minZ = m_stepZ * float(min) + m_rangeMinZ; + + int max = m_axisMaxSliderZ->value(); + if (min >= max) { + max = min + 1; + m_axisMaxSliderZ->setValue(max); + } + float maxZ = m_stepZ * max + m_rangeMinZ; + + setAxisZRange(minZ, maxZ); +} + +void SurfaceGraphModifier::adjustZMax(int max) +{ + float maxX = m_stepZ * float(max) + m_rangeMinZ; + + int min = m_axisMinSliderZ->value(); + if (max <= min) { + min = max - 1; + m_axisMinSliderZ->setValue(min); + } + float minX = m_stepZ * min + m_rangeMinZ; + + setAxisZRange(minX, maxX); +} + +//! [7] +void SurfaceGraphModifier::setAxisXRange(float min, float max) +{ + m_graph->axisX()->setRange(min, max); +} +//! [7] + +void SurfaceGraphModifier::setAxisZRange(float min, float max) +{ + m_graph->axisZ()->setRange(min, max); +} + +void SurfaceGraphModifier::setBlackToYellowGradient() +{ + //! [8] + QLinearGradient gr; + gr.setColorAt(0.f, Qt::black); + gr.setColorAt(0.33f, Qt::blue); + gr.setColorAt(0.67f, Qt::red); + gr.setColorAt(1.f, Qt::yellow); + + m_sqrtSinSeries->setBaseGradient(gr); + m_sqrtSinSeries->setColorStyle(Q3DTheme::ColorStyleRangeGradient); + //! [8] +} + +void SurfaceGraphModifier::setGreenToRedGradient() +{ + QLinearGradient gr; + gr.setColorAt(0.f, Qt::darkGreen); + gr.setColorAt(0.5f, Qt::yellow); + gr.setColorAt(0.8f, Qt::red); + gr.setColorAt(1.f, Qt::darkRed); + + m_sqrtSinSeries->setBaseGradient(gr); + m_sqrtSinSeries->setColorStyle(Q3DTheme::ColorStyleRangeGradient); +} + +void SurfaceGraphModifier::toggleItemOne(bool show) +{ + //! [10] + QVector3D positionOne = QVector3D(39.f, 77.f, 19.2f); + //! [10] + QVector3D positionOnePipe = QVector3D(39.f, 45.f, 19.2f); + QVector3D positionOneLabel = QVector3D(39.f, 107.f, 19.2f); + if (show) { + //! [9] + QImage color = QImage(2, 2, QImage::Format_RGB32); + color.fill(Qt::red); + //! [9] + //! [11] + auto *item = new QCustom3DItem(":/data/oilrig.obj", positionOne, + QVector3D(0.025f, 0.025f, 0.025f), + QQuaternion::fromAxisAndAngle(0.f, 1.f, 0.f, 45.f), + color); + //! [11] + //! [12] + m_graph->addCustomItem(item); + //! [12] + item = new QCustom3DItem(":/data/pipe.obj", positionOnePipe, + QVector3D(0.005f, 0.5f, 0.005f), + QQuaternion(), + color); + item->setShadowCasting(false); + m_graph->addCustomItem(item); + + //! [13] + auto *label = new QCustom3DLabel(); + label->setText("Oil Rig One"); + label->setPosition(positionOneLabel); + label->setScaling(QVector3D(1.f, 1.f, 1.f)); + m_graph->addCustomItem(label); + //! [13] + } else { + resetSelection(); + //! [14] + m_graph->removeCustomItemAt(positionOne); + //! [14] + m_graph->removeCustomItemAt(positionOnePipe); + m_graph->removeCustomItemAt(positionOneLabel); + } +} + +void SurfaceGraphModifier::toggleItemTwo(bool show) +{ + QVector3D positionTwo = QVector3D(34.5f, 77.f, 23.4f); + QVector3D positionTwoPipe = QVector3D(34.5f, 45.f, 23.4f); + QVector3D positionTwoLabel = QVector3D(34.5f, 107.f, 23.4f); + if (show) { + QImage color = QImage(2, 2, QImage::Format_RGB32); + color.fill(Qt::red); + auto *item = new QCustom3DItem(); + item->setMeshFile(":/data/oilrig.obj"); + item->setPosition(positionTwo); + item->setScaling(QVector3D(0.025f, 0.025f, 0.025f)); + item->setRotation(QQuaternion::fromAxisAndAngle(0.f, 1.f, 0.f, 25.f)); + item->setTextureImage(color); + m_graph->addCustomItem(item); + item = new QCustom3DItem(":/data/pipe.obj", positionTwoPipe, + QVector3D(0.005f, 0.5f, 0.005f), + QQuaternion(), + color); + item->setShadowCasting(false); + m_graph->addCustomItem(item); + + auto *label = new QCustom3DLabel(); + label->setText("Oil Rig Two"); + label->setPosition(positionTwoLabel); + label->setScaling(QVector3D(1.f, 1.f, 1.f)); + m_graph->addCustomItem(label); + } else { + resetSelection(); + m_graph->removeCustomItemAt(positionTwo); + m_graph->removeCustomItemAt(positionTwoPipe); + m_graph->removeCustomItemAt(positionTwoLabel); + } +} + +void SurfaceGraphModifier::toggleItemThree(bool show) +{ + QVector3D positionThree = QVector3D(34.5f, 86.f, 19.1f); + QVector3D positionThreeLabel = QVector3D(34.5f, 116.f, 19.1f); + if (show) { + QImage color = QImage(2, 2, QImage::Format_RGB32); + color.fill(Qt::darkMagenta); + auto *item = new QCustom3DItem(); + item->setMeshFile(":/data/refinery.obj"); + item->setPosition(positionThree); + item->setScaling(QVector3D(0.04f, 0.04f, 0.04f)); + item->setRotation(QQuaternion::fromAxisAndAngle(0.f, 1.f, 0.f, 75.f)); + item->setTextureImage(color); + m_graph->addCustomItem(item); + + auto *label = new QCustom3DLabel(); + label->setText("Refinery"); + label->setPosition(positionThreeLabel); + label->setScaling(QVector3D(1.f, 1.f, 1.f)); + m_graph->addCustomItem(label); + } else { + resetSelection(); + m_graph->removeCustomItemAt(positionThree); + m_graph->removeCustomItemAt(positionThreeLabel); + } +} + +void SurfaceGraphModifier::toggleSeeThrough(bool seethrough) +{ + if (seethrough) { + m_graph->seriesList().at(0)->setDrawMode(QSurface3DSeries::DrawWireframe); + m_graph->seriesList().at(1)->setDrawMode(QSurface3DSeries::DrawWireframe); + } else { + m_graph->seriesList().at(0)->setDrawMode(QSurface3DSeries::DrawSurface); + m_graph->seriesList().at(1)->setDrawMode(QSurface3DSeries::DrawSurface); + } +} + +void SurfaceGraphModifier::toggleOilHighlight(bool highlight) +{ + if (highlight) { + QLinearGradient grThree; + grThree.setColorAt(0.0, Qt::black); + grThree.setColorAt(0.05, Qt::red); + m_graph->seriesList().at(2)->setBaseGradient(grThree); + } else { + QLinearGradient grThree; + grThree.setColorAt(0.0, Qt::white); + grThree.setColorAt(0.05, Qt::black); + m_graph->seriesList().at(2)->setBaseGradient(grThree); + } +} + +void SurfaceGraphModifier::toggleShadows(bool shadows) +{ + if (shadows) + m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualityMedium); + else + m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualityNone); +} + +//! [15] +void SurfaceGraphModifier::toggleSurfaceTexture(bool enable) +{ + if (enable) + m_topography->setTextureFile(":/data/maptexture.jpg"); + else + m_topography->setTextureFile(""); +} +//! [15] + +void SurfaceGraphModifier::handleElementSelected(QAbstract3DGraph::ElementType type) +{ + resetSelection(); + if (type == QAbstract3DGraph::ElementCustomItem) { + QCustom3DItem *item = m_graph->selectedCustomItem(); + QString text; + if (qobject_cast<QCustom3DLabel *>(item) != 0) { + text.append("Custom label: "); + } else { + QStringList split = item->meshFile().split("/"); + text.append(split.last()); + text.append(": "); + } + int index = m_graph->selectedCustomItemIndex(); + text.append(QString::number(index)); + m_textField->setText(text); + m_previouslyAnimatedItem = item; + m_previousScaling = item->scaling(); + m_selectionAnimation->setTargetObject(item); + m_selectionAnimation->setStartValue(item->scaling()); + m_selectionAnimation->setEndValue(item->scaling() * 1.5f); + m_selectionAnimation->start(); + } else if (type == QAbstract3DGraph::ElementSeries) { + QString text = "Surface ("; + QSurface3DSeries *series = m_graph->selectedSeries(); + if (series) { + QPoint point = series->selectedPoint(); + QString posStr; + posStr.setNum(point.x()); + text.append(posStr); + text.append(", "); + posStr.setNum(point.y()); + text.append(posStr); + } + text.append(")"); + m_textField->setText(text); + } else if (type > QAbstract3DGraph::ElementSeries + && type < QAbstract3DGraph::ElementCustomItem) { + int index = m_graph->selectedLabelIndex(); + QString text; + if (type == QAbstract3DGraph::ElementAxisXLabel) + text.append("Axis X label: "); + else if (type == QAbstract3DGraph::ElementAxisYLabel) + text.append("Axis Y label: "); + else + text.append("Axis Z label: "); + text.append(QString::number(index)); + m_textField->setText(text); + } else { + m_textField->setText("Nothing"); + } +} + +void SurfaceGraphModifier::resetSelection() +{ + m_selectionAnimation->stop(); + if (m_previouslyAnimatedItem) + m_previouslyAnimatedItem->setScaling(m_previousScaling); + m_previouslyAnimatedItem = nullptr; +} diff --git a/examples/datavisualization/graphgallery/surfacegraphmodifier.h b/examples/datavisualization/graphgallery/surfacegraphmodifier.h new file mode 100644 index 00000000..1a54958e --- /dev/null +++ b/examples/datavisualization/graphgallery/surfacegraphmodifier.h @@ -0,0 +1,109 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef SURFACEGRAPHMODIFIER_H +#define SURFACEGRAPHMODIFIER_H + +#include <QtDataVisualization/q3dsurface.h> +#include <QtDataVisualization/qsurfacedataproxy.h> +#include <QtDataVisualization/qheightmapsurfacedataproxy.h> +#include <QtDataVisualization/qsurface3dseries.h> +#include <QtDataVisualization/qcustom3ditem.h> +#include <QtDataVisualization/qcustom3dlabel.h> +#include <QtDataVisualization/q3dinputhandler.h> +#include <QtWidgets/qslider.h> +#include <QtWidgets/qlabel.h> +#include <QtCore/qpropertyanimation.h> + +class TopographicSeries; +class HighlightSeries; +class CustomInputHandler; + +class SurfaceGraphModifier : public QObject +{ + Q_OBJECT +public: + explicit SurfaceGraphModifier(Q3DSurface *surface, QLabel *label, QObject *parent); + + //! [0] + void toggleModeNone() { m_graph->setSelectionMode(QAbstract3DGraph::SelectionNone); } + void toggleModeItem() { m_graph->setSelectionMode(QAbstract3DGraph::SelectionItem); } + void toggleModeSliceRow() { m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemAndRow + | QAbstract3DGraph::SelectionSlice + | QAbstract3DGraph::SelectionMultiSeries); } + void toggleModeSliceColumn() { m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemAndColumn + | QAbstract3DGraph::SelectionSlice + | QAbstract3DGraph::SelectionMultiSeries); } + //! [0] + + void setBlackToYellowGradient(); + void setGreenToRedGradient(); + + void setAxisMinSliderX(QSlider *slider) { m_axisMinSliderX = slider; } + void setAxisMaxSliderX(QSlider *slider) { m_axisMaxSliderX = slider; } + void setAxisMinSliderZ(QSlider *slider) { m_axisMinSliderZ = slider; } + void setAxisMaxSliderZ(QSlider *slider) { m_axisMaxSliderZ = slider; } + + void adjustXMin(int min); + void adjustXMax(int max); + void adjustZMin(int min); + void adjustZMax(int max); + +public Q_SLOTS: + void enableSqrtSinModel(bool enable); + void enableHeightMapModel(bool enable); + void enableTopographyModel(bool enable); + + void toggleItemOne(bool show); + void toggleItemTwo(bool show); + void toggleItemThree(bool show); + void toggleSeeThrough(bool seethrough); + void toggleOilHighlight(bool highlight); + void toggleShadows(bool shadows); + void toggleSurfaceTexture(bool enable); + +private: + void setAxisXRange(float min, float max); + void setAxisZRange(float min, float max); + void fillSqrtSinProxy(); + void handleElementSelected(QAbstract3DGraph::ElementType type); + void resetSelection(); + +private: + Q3DSurface *m_graph = nullptr; + QSurfaceDataProxy *m_sqrtSinProxy = nullptr; + QSurface3DSeries *m_sqrtSinSeries = nullptr; + QHeightMapSurfaceDataProxy *m_heightMapProxyOne = nullptr; + QHeightMapSurfaceDataProxy *m_heightMapProxyTwo = nullptr; + QHeightMapSurfaceDataProxy *m_heightMapProxyThree = nullptr; + QSurface3DSeries *m_heightMapSeriesOne = nullptr; + QSurface3DSeries *m_heightMapSeriesTwo = nullptr; + QSurface3DSeries *m_heightMapSeriesThree = nullptr; + + QSlider *m_axisMinSliderX = nullptr; + QSlider *m_axisMaxSliderX = nullptr; + QSlider *m_axisMinSliderZ = nullptr; + QSlider *m_axisMaxSliderZ = nullptr; + float m_rangeMinX = 0.f; + float m_rangeMinZ = 0.f; + float m_stepX = 0.f; + float m_stepZ = 0.f; + int m_heightMapWidth = 0; + int m_heightMapHeight = 0; + + QLabel *m_textField = nullptr; + QPropertyAnimation *m_selectionAnimation = nullptr; + QCustom3DLabel *m_titleLabel = nullptr; + QCustom3DItem *m_previouslyAnimatedItem = nullptr; + QVector3D m_previousScaling = {}; + + TopographicSeries *m_topography = nullptr; + HighlightSeries *m_highlight = nullptr; + int m_highlightWidth = 0; + int m_highlightHeight = 0; + + CustomInputHandler *m_customInputHandler = nullptr; + Q3DInputHandler *m_defaultInputHandler = new Q3DInputHandler(); +}; + +#endif // SURFACEGRAPHMODIFIER_H diff --git a/examples/datavisualization/graphgallery/topographicseries.cpp b/examples/datavisualization/graphgallery/topographicseries.cpp new file mode 100644 index 00000000..201a275e --- /dev/null +++ b/examples/datavisualization/graphgallery/topographicseries.cpp @@ -0,0 +1,55 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "topographicseries.h" + +//! [0] +// Value used to encode height data as RGB value on PNG file +const float packingFactor = 11983.f; +//! [0] + +TopographicSeries::TopographicSeries() +{ + setDrawMode(QSurface3DSeries::DrawSurface); + setFlatShadingEnabled(true); + setBaseColor(Qt::white); +} + +TopographicSeries::~TopographicSeries() = default; + +void TopographicSeries::setTopographyFile(const QString file, float width, float height) +{ + //! [1] + QImage heightMapImage(file); + uchar *bits = heightMapImage.bits(); + int imageHeight = heightMapImage.height(); + int imageWidth = heightMapImage.width(); + int widthBits = imageWidth * 4; + float stepX = width / float(imageWidth); + float stepZ = height / float(imageHeight); + + auto *dataArray = new QSurfaceDataArray; + dataArray->reserve(imageHeight); + for (int i = 0; i < imageHeight; ++i) { + int p = i * widthBits; + float z = height - float(i) * stepZ; + auto *newRow = new QSurfaceDataRow; + newRow->reserve(imageWidth); + for (int j = 0; j < imageWidth; ++j) { + uchar aa = bits[p + 0]; + uchar rr = bits[p + 1]; + uchar gg = bits[p + 2]; + uint color = uint((gg << 16) + (rr << 8) + aa); + float y = float(color) / packingFactor; + newRow->append(QSurfaceDataItem({float(j) * stepX, y, z})); + p += 4; + } + dataArray->append(newRow); + } + + dataProxy()->resetArray(dataArray); + //! [1] + + m_sampleCountX = float(imageWidth); + m_sampleCountZ = float(imageHeight); +} diff --git a/examples/datavisualization/graphgallery/topographicseries.h b/examples/datavisualization/graphgallery/topographicseries.h new file mode 100644 index 00000000..41e03b1e --- /dev/null +++ b/examples/datavisualization/graphgallery/topographicseries.h @@ -0,0 +1,26 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef TOPOGRAPHICSERIES_H +#define TOPOGRAPHICSERIES_H + +#include <QtDataVisualization/qsurface3dseries.h> + +class TopographicSeries : public QSurface3DSeries +{ + Q_OBJECT +public: + TopographicSeries(); + ~TopographicSeries(); + + void setTopographyFile(const QString file, float width, float height); + + float sampleCountX() { return m_sampleCountX; } + float sampleCountZ() { return m_sampleCountZ; } + +private: + float m_sampleCountX = 0.f; + float m_sampleCountZ = 0.f; +}; + +#endif // TOPOGRAPHICSERIES_H diff --git a/examples/datavisualization/graphgallery/variantbardatamapping.cpp b/examples/datavisualization/graphgallery/variantbardatamapping.cpp new file mode 100644 index 00000000..7a2a6cc7 --- /dev/null +++ b/examples/datavisualization/graphgallery/variantbardatamapping.cpp @@ -0,0 +1,85 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "variantbardatamapping.h" + +VariantBarDataMapping::VariantBarDataMapping(int rowIndex, int columnIndex, int valueIndex, + const QStringList &rowCategories, + const QStringList &columnCategories) + : QObject(nullptr) +{ + m_rowIndex = rowIndex; + m_columnIndex = columnIndex; + m_valueIndex = valueIndex; + m_rowCategories = rowCategories; + m_columnCategories = columnCategories; +} + +VariantBarDataMapping::~VariantBarDataMapping() = default; + +void VariantBarDataMapping::setRowIndex(int index) +{ + m_rowIndex = index; + emit mappingChanged(); +} + +int VariantBarDataMapping::rowIndex() const +{ + return m_rowIndex; +} + +void VariantBarDataMapping::setColumnIndex(int index) +{ + m_columnIndex = index; + emit mappingChanged(); +} + +int VariantBarDataMapping::columnIndex() const +{ + return m_columnIndex; +} + +void VariantBarDataMapping::setValueIndex(int index) +{ + m_valueIndex = index; + emit mappingChanged(); +} + +int VariantBarDataMapping::valueIndex() const +{ + return m_valueIndex; +} + +void VariantBarDataMapping::setRowCategories(const QStringList &categories) +{ + m_rowCategories = categories; + emit mappingChanged(); +} + +const QStringList &VariantBarDataMapping::rowCategories() const +{ + return m_rowCategories; +} + +void VariantBarDataMapping::setColumnCategories(const QStringList &categories) +{ + m_columnCategories = categories; + emit mappingChanged(); +} + +const QStringList &VariantBarDataMapping::columnCategories() const +{ + return m_columnCategories; +} + +void VariantBarDataMapping::remap(int rowIndex, int columnIndex, int valueIndex, + const QStringList &rowCategories, + const QStringList &columnCategories) +{ + m_rowIndex = rowIndex; + m_columnIndex = columnIndex; + m_valueIndex = valueIndex; + m_rowCategories = rowCategories; + m_columnCategories = columnCategories; + emit mappingChanged(); +} diff --git a/examples/datavisualization/graphgallery/variantbardatamapping.h b/examples/datavisualization/graphgallery/variantbardatamapping.h new file mode 100644 index 00000000..25bacebd --- /dev/null +++ b/examples/datavisualization/graphgallery/variantbardatamapping.h @@ -0,0 +1,66 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef VARIANTBARDATAMAPPING_H +#define VARIANTBARDATAMAPPING_H + +#include <QtCore/qobject.h> +#include <QtCore/qstringlist.h> + +class VariantBarDataMapping : public QObject +{ + Q_OBJECT + //! [0] + Q_PROPERTY(int rowIndex READ rowIndex WRITE setRowIndex NOTIFY rowIndexChanged) + Q_PROPERTY(int columnIndex READ columnIndex WRITE setColumnIndex NOTIFY columnIndexChanged) + Q_PROPERTY(int valueIndex READ valueIndex WRITE setValueIndex NOTIFY valueIndexChanged) + Q_PROPERTY(QStringList rowCategories READ rowCategories WRITE setRowCategories NOTIFY rowCategoriesChanged) + Q_PROPERTY(QStringList columnCategories READ columnCategories WRITE setColumnCategories NOTIFY columnCategoriesChanged) + //! [0] +public: + //! [1] + explicit VariantBarDataMapping(int rowIndex, int columnIndex, int valueIndex, + const QStringList &rowCategories, + const QStringList &columnCategories); + //! [1] + virtual ~VariantBarDataMapping(); + + void setRowIndex(int index); + int rowIndex() const; + void setColumnIndex(int index); + int columnIndex() const; + void setValueIndex(int index); + int valueIndex() const; + + void setRowCategories(const QStringList &categories); + const QStringList &rowCategories() const; + void setColumnCategories(const QStringList &categories); + const QStringList &columnCategories() const; + + //! [2] + void remap(int rowIndex, int columnIndex, int valueIndex, + const QStringList &rowCategories, + const QStringList &columnCategories); + //! [2] +Q_SIGNALS: + void rowIndexChanged(); + void columnIndexChanged(); + void valueIndexChanged(); + void rowCategoriesChanged(); + void columnCategoriesChanged(); + //! [3] + void mappingChanged(); + //! [3] + +private: + // Indexes of the mapped items in the VariantDataItem + int m_rowIndex = 0; + int m_columnIndex = 1; + int m_valueIndex = 2; + + // For row/column items, sort items into these categories. Other categories are ignored. + QStringList m_rowCategories = {}; + QStringList m_columnCategories = {}; +}; + +#endif diff --git a/examples/datavisualization/graphgallery/variantbardataproxy.cpp b/examples/datavisualization/graphgallery/variantbardataproxy.cpp new file mode 100644 index 00000000..8fe73abc --- /dev/null +++ b/examples/datavisualization/graphgallery/variantbardataproxy.cpp @@ -0,0 +1,114 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "variantbardataproxy.h" + +VariantBarDataProxy::VariantBarDataProxy() = default; + +VariantBarDataProxy::~VariantBarDataProxy() +{ + delete m_dataSet; +} + +void VariantBarDataProxy::setDataSet(VariantDataSet *newSet) +{ + if (!m_dataSet.isNull()) + QObject::disconnect(m_dataSet.data(), nullptr, this, nullptr); + + m_dataSet = newSet; + + if (!m_dataSet.isNull()) { + QObject::connect(m_dataSet.data(), &VariantDataSet::itemsAdded, this, + &VariantBarDataProxy::handleItemsAdded); + QObject::connect(m_dataSet.data(), &VariantDataSet::dataCleared, this, + &VariantBarDataProxy::handleDataCleared); + } + resolveDataSet(); +} + +VariantDataSet *VariantBarDataProxy::dataSet() +{ + return m_dataSet.data(); +} + +void VariantBarDataProxy::setMapping(VariantBarDataMapping *mapping) +{ + if (!m_mapping.isNull()) { + QObject::disconnect(m_mapping.data(), &VariantBarDataMapping::mappingChanged, this, + &VariantBarDataProxy::handleMappingChanged); + } + + m_mapping = mapping; + + if (!m_mapping.isNull()) { + QObject::connect(m_mapping.data(), &VariantBarDataMapping::mappingChanged, this, + &VariantBarDataProxy::handleMappingChanged); + } + + resolveDataSet(); +} + +VariantBarDataMapping *VariantBarDataProxy::mapping() +{ + return m_mapping.data(); +} + +void VariantBarDataProxy::handleItemsAdded(int index, int count) +{ + Q_UNUSED(index); + Q_UNUSED(count); + + // Resolve new items + resolveDataSet(); +} + +void VariantBarDataProxy::handleDataCleared() +{ + // Data cleared, reset array + resetArray(nullptr); +} + +void VariantBarDataProxy::handleMappingChanged() +{ + resolveDataSet(); +} + +// Resolve entire dataset into QBarDataArray. +//! [0] +void VariantBarDataProxy::resolveDataSet() +{ + // If we have no data or mapping, or the categories are not defined, simply clear the array + if (m_dataSet.isNull() || m_mapping.isNull() || !m_mapping->rowCategories().size() + || !m_mapping->columnCategories().size()) { + resetArray(nullptr); + return; + } + const VariantDataItemList &itemList = m_dataSet->itemList(); + + int rowIndex = m_mapping->rowIndex(); + int columnIndex = m_mapping->columnIndex(); + int valueIndex = m_mapping->valueIndex(); + const QStringList &rowList = m_mapping->rowCategories(); + const QStringList &columnList = m_mapping->columnCategories(); + + // Sort values into rows and columns + using ColumnValueMap = QHash<QString, float>; + QHash <QString, ColumnValueMap> itemValueMap; + for (const VariantDataItem *item : itemList) { + itemValueMap[item->at(rowIndex).toString()][item->at(columnIndex).toString()] + = item->at(valueIndex).toReal(); + } + + // Create a new data array in format the parent class understands + auto *newProxyArray = new QBarDataArray; + for (const QString &rowKey : rowList) { + auto *newProxyRow = new QBarDataRow(columnList.size()); + for (qsizetype i = 0; i < columnList.size(); ++i) + (*newProxyRow)[i].setValue(itemValueMap[rowKey][columnList.at(i)]); + newProxyArray->append(newProxyRow); + } + + // Finally, reset the data array in the parent class + resetArray(newProxyArray); +} +//! [0] diff --git a/examples/datavisualization/graphgallery/variantbardataproxy.h b/examples/datavisualization/graphgallery/variantbardataproxy.h new file mode 100644 index 00000000..6a4d2f31 --- /dev/null +++ b/examples/datavisualization/graphgallery/variantbardataproxy.h @@ -0,0 +1,48 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef VARIANTBARDATAPROXY_H +#define VARIANTBARDATAPROXY_H + +#include "variantdataset.h" +#include "variantbardatamapping.h" +#include <QtDataVisualization/qbardataproxy.h> +#include <QtCore/qpointer.h> + +//! [0] +class VariantBarDataProxy : public QBarDataProxy +//! [0] +{ + Q_OBJECT + +public: + VariantBarDataProxy(); + virtual ~VariantBarDataProxy(); + + //! [1] + // Doesn't gain ownership of the dataset, but does connect to it to listen for data changes. + void setDataSet(VariantDataSet *newSet); + VariantDataSet *dataSet(); + + // Map key (row, column, value) to value index in data item (VariantItem). + // Doesn't gain ownership of mapping, but does connect to it to listen for mapping changes. + // Modifying mapping that is set to proxy will trigger dataset re-resolving. + void setMapping(VariantBarDataMapping *mapping); + VariantBarDataMapping *mapping(); + //! [1] + +public Q_SLOTS: + void handleItemsAdded(int index, int count); + void handleDataCleared(); + void handleMappingChanged(); + +private: + void resolveDataSet(); + + QPointer<VariantDataSet> m_dataSet; + QPointer<VariantBarDataMapping> m_mapping; + + Q_DISABLE_COPY(VariantBarDataProxy) +}; + +#endif diff --git a/examples/datavisualization/graphgallery/variantdataset.cpp b/examples/datavisualization/graphgallery/variantdataset.cpp new file mode 100644 index 00000000..3892f02b --- /dev/null +++ b/examples/datavisualization/graphgallery/variantdataset.cpp @@ -0,0 +1,45 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "variantdataset.h" + +VariantDataSet::VariantDataSet() = default; + +VariantDataSet::~VariantDataSet() +{ + clear(); +} + +void VariantDataSet::clear() +{ + for (VariantDataItem *item : m_variantData) { + item->clear(); + delete item; + } + m_variantData.clear(); + emit dataCleared(); +} + +int VariantDataSet::addItem(VariantDataItem *item) +{ + m_variantData.append(item); + int addIndex = m_variantData.size(); + + emit itemsAdded(addIndex, 1); + return addIndex; +} + +int VariantDataSet::addItems(VariantDataItemList *itemList) +{ + int newCount = itemList->size(); + int addIndex = m_variantData.size(); + m_variantData.append(*itemList); + delete itemList; + emit itemsAdded(addIndex, newCount); + return addIndex; +} + +const VariantDataItemList &VariantDataSet::itemList() const +{ + return m_variantData; +} diff --git a/examples/datavisualization/graphgallery/variantdataset.h b/examples/datavisualization/graphgallery/variantdataset.h new file mode 100644 index 00000000..ca0d7ffd --- /dev/null +++ b/examples/datavisualization/graphgallery/variantdataset.h @@ -0,0 +1,41 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef VARIANTDATASET_H +#define VARIANTDATASET_H + +#include <QtCore/qvariantlist.h> + +//! [0] +using VariantDataItem = QVariantList; +using VariantDataItemList = QList<VariantDataItem *>; +//! [0] + +class VariantDataSet : public QObject +{ + Q_OBJECT + +public: + explicit VariantDataSet(); + ~VariantDataSet(); + + //! [1] + void clear(); + + int addItem(VariantDataItem *item); + int addItems(VariantDataItemList *itemList); + + const VariantDataItemList &itemList() const; + +Q_SIGNALS: + void itemsAdded(int index, int count); + void dataCleared(); + //! [1] + +private: + VariantDataItemList m_variantData; + + Q_DISABLE_COPY(VariantDataSet) +}; + +#endif |
