diff options
Diffstat (limited to 'examples/custominput/scatterdatamodifier.cpp')
| -rw-r--r-- | examples/custominput/scatterdatamodifier.cpp | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/examples/custominput/scatterdatamodifier.cpp b/examples/custominput/scatterdatamodifier.cpp new file mode 100644 index 00000000..a1e7e55f --- /dev/null +++ b/examples/custominput/scatterdatamodifier.cpp @@ -0,0 +1,160 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the QtDataVisualization module. +** +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** +****************************************************************************/ + +#include "scatterdatamodifier.h" + +#include <QtDataVisualization/QScatterDataProxy> +#include <QtDataVisualization/Q3DValueAxis> +#include <QtDataVisualization/Q3DScene> +#include <QtDataVisualization/Q3DCamera> +#include <QtDataVisualization/QScatter3DSeries> +#include <QtDataVisualization/Q3DTheme> +#include <qmath.h> + +using namespace QtDataVisualization; + +ScatterDataModifier::ScatterDataModifier(Q3DScatter *scatter) + : m_graph(scatter), + m_inputHandler(new CustomInputHandler()) +{ + m_graph->setObjectType(QDataVis::MeshStyleCubes, false); + m_graph->setTheme(new Q3DTheme(QDataVis::ThemeDigia)); + m_graph->setShadowQuality(QDataVis::ShadowQualitySoftLow); + m_graph->scene()->activeCamera()->setCameraPreset(QDataVis::CameraPresetFront); + + m_graph->setAxisX(new Q3DValueAxis); + m_graph->setAxisY(new Q3DValueAxis); + m_graph->setAxisZ(new Q3DValueAxis); + + QScatter3DSeries *series = new QScatter3DSeries; + series->setItemLabelFormat("@xTitle: @xLabel @yTitle: @yLabel @zTitle: @zLabel"); + m_graph->addSeries(series); + + m_animationCameraX = new QPropertyAnimation(m_graph->scene()->activeCamera(), "xRotation"); + m_animationCameraX->setDuration(20000); + m_animationCameraX->setStartValue(QVariant::fromValue(0.0f)); + m_animationCameraX->setEndValue(QVariant::fromValue(360.0f)); + m_animationCameraX->setLoopCount(-1); + + QPropertyAnimation *upAnimation = new QPropertyAnimation(m_graph->scene()->activeCamera(), "yRotation"); + upAnimation->setDuration(9000); + upAnimation->setStartValue(QVariant::fromValue(5.0f)); + upAnimation->setEndValue(QVariant::fromValue(45.0f)); + + QPropertyAnimation *downAnimation = new QPropertyAnimation(m_graph->scene()->activeCamera(), "yRotation"); + downAnimation->setDuration(9000); + downAnimation->setStartValue(QVariant::fromValue(45.0f)); + downAnimation->setEndValue(QVariant::fromValue(5.0f)); + + m_animationCameraY = new QSequentialAnimationGroup(); + m_animationCameraY->setLoopCount(-1); + m_animationCameraY->addAnimation(upAnimation); + m_animationCameraY->addAnimation(downAnimation); + + m_animationCameraX->start(); + m_animationCameraY->start(); + + // Give ownership of the handler to the graph and make it the active handler + m_graph->setActiveInputHandler(m_inputHandler); + + m_selectionTimer = new QTimer(this); + m_selectionTimer->setInterval(10); + m_selectionTimer->setSingleShot(false); + QObject::connect(m_selectionTimer, &QTimer::timeout, this, + &ScatterDataModifier::triggerSelection); + + m_selectionTimer->start(); +} + +ScatterDataModifier::~ScatterDataModifier() +{ + delete m_graph; +} + +void ScatterDataModifier::start() +{ + addData(); +} + +void ScatterDataModifier::addData() +{ + QVector<QVector3D> *itemList = new QVector<QVector3D>(); + + // Read data items from the file to QVector + QTextStream stream; + QFile dataFile(":/data/data.txt"); + if (dataFile.open(QIODevice::ReadOnly | QIODevice::Text)) { + stream.setDevice(&dataFile); + while (!stream.atEnd()) { + QString line = stream.readLine(); + if (line.startsWith("#")) // Ignore comments + continue; + QStringList strList = line.split(",", QString::SkipEmptyParts); + // Each line has three data items: xPos, yPos and zPos value + if (strList.size() < 3) { + qWarning() << "Invalid row read from data:" << line; + continue; + } + itemList->append(QVector3D( + strList.at(0).trimmed().toFloat(), + strList.at(1).trimmed().toFloat(), + strList.at(2).trimmed().toFloat())); + } + } else { + qWarning() << "Unable to open data file:" << dataFile.fileName(); + } + + // Add data from the QVector to datamodel + QScatterDataArray *dataArray = new QScatterDataArray; + dataArray->resize(itemList->count()); + QScatterDataItem *ptrToDataArray = &dataArray->first(); + for (int i = 0; i < itemList->count(); i++) { + ptrToDataArray->setPosition(itemList->at(i)); + ptrToDataArray++; + } + + m_graph->seriesList().at(0)->dataProxy()->resetArray(dataArray); +} + +void ScatterDataModifier::toggleCameraAnimation() +{ + if (m_animationCameraX->state() != QAbstractAnimation::Paused) { + m_animationCameraX->pause(); + m_animationCameraY->pause(); + } else { + m_animationCameraX->resume(); + m_animationCameraY->resume(); + } +} + +void ScatterDataModifier::triggerSelection() +{ + m_graph->scene()->setSelectionQueryPosition(m_inputHandler->inputPosition()); +} + +void ScatterDataModifier::shadowQualityUpdatedByVisual(QDataVis::ShadowQuality sq) +{ + int quality = int(sq); + emit shadowQualityChanged(quality); // connected to a checkbox in main.cpp +} + +void ScatterDataModifier::changeShadowQuality(int quality) +{ + QDataVis::ShadowQuality sq = QDataVis::ShadowQuality(quality); + m_graph->setShadowQuality(sq); +} |