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/****************************************************************************
**
** Copyright (C) 2014 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/QValue3DAxis>
#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->activeTheme()->setType(Q3DTheme::ThemeDigia);
m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualityMedium);
m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront);
m_graph->setAxisX(new QValue3DAxis);
m_graph->setAxisY(new QValue3DAxis);
m_graph->setAxisZ(new QValue3DAxis);
m_graph->axisX()->setRange(-10.0f, 10.0f);
m_graph->axisY()->setRange(-5.0f, 5.0f);
m_graph->axisZ()->setRange(-5.0f, 5.0f);
QScatter3DSeries *series = new QScatter3DSeries;
series->setItemLabelFormat(QStringLiteral("@xLabel, @yLabel, @zLabel"));
series->setMesh(QAbstract3DSeries::MeshCube);
series->setItemSize(0.15f);
m_graph->addSeries(series);
//! [2]
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);
//! [2]
//! [3]
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);
//! [3]
m_animationCameraX->start();
m_animationCameraY->start();
// Give ownership of the handler to the graph and make it the active handler
//! [0]
m_graph->setActiveInputHandler(m_inputHandler);
//! [0]
//! [1]
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();
//! [1]
}
ScatterDataModifier::~ScatterDataModifier()
{
delete m_graph;
}
void ScatterDataModifier::start()
{
addData();
}
void ScatterDataModifier::addData()
{
QVector<QVector3D> itemList;
// 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(QAbstract3DGraph::ShadowQuality sq)
{
int quality = int(sq);
emit shadowQualityChanged(quality); // connected to a checkbox in main.cpp
}
void ScatterDataModifier::changeShadowQuality(int quality)
{
QAbstract3DGraph::ShadowQuality sq = QAbstract3DGraph::ShadowQuality(quality);
m_graph->setShadowQuality(sq);
}
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