| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
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| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
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| ** |
| ****************************************************************************/ |
| |
| #include "scatterdatamodifier.h" |
| |
| #include <QtDataVisualization/QScatterDataProxy> |
| #include <QtDataVisualization/QValue3DAxis> |
| #include <QtDataVisualization/Q3DScene> |
| #include <QtDataVisualization/Q3DCamera> |
| #include <QtDataVisualization/QScatter3DSeries> |
| #include <QtDataVisualization/Q3DTheme> |
| #include <QtCore/qmath.h> |
| #include <QtCore/QTextStream> |
| #include <QtCore/QDebug> |
| |
| 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); |
| } |