customitemgraph.cpp Example File

customitems/customitemgraph.cpp
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#include "customitemgraph.h" #include <QtDataVisualization/Q3DTheme> #include <QtDataVisualization/QCustom3DItem> #include <QtDataVisualization/QCustom3DLabel> #include <QtGui/QImage> using namespace QtDataVisualization; CustomItemGraph::CustomItemGraph(Q3DSurface *surface, QLabel *label) : m_graph(surface), m_textField(label), m_previouslyAnimatedItem(0) { QImage layerOneHMap(":/maps/layer_1.png"); QHeightMapSurfaceDataProxy *layerOneProxy = new QHeightMapSurfaceDataProxy(layerOneHMap); QSurface3DSeries *layerOneSeries = new QSurface3DSeries(layerOneProxy); layerOneSeries->setItemLabelFormat(QStringLiteral("(@xLabel, @zLabel): @yLabel")); layerOneProxy->setValueRanges(34.0f, 40.0f, 18.0f, 24.0f); layerOneSeries->setDrawMode(QSurface3DSeries::DrawSurface); layerOneSeries->setFlatShadingEnabled(false); QImage layerTwoHMap(":/maps/layer_2.png"); QHeightMapSurfaceDataProxy *layerTwoProxy = new QHeightMapSurfaceDataProxy(layerTwoHMap); QSurface3DSeries *layerTwoSeries = new QSurface3DSeries(layerTwoProxy); layerTwoSeries->setItemLabelFormat(QStringLiteral("(@xLabel, @zLabel): @yLabel")); layerTwoProxy->setValueRanges(34.0f, 40.0f, 18.0f, 24.0f); layerTwoSeries->setDrawMode(QSurface3DSeries::DrawSurface); layerTwoSeries->setFlatShadingEnabled(false); QImage layerThreeHMap(":/maps/layer_3.png"); QHeightMapSurfaceDataProxy *layerThreeProxy = new QHeightMapSurfaceDataProxy(layerThreeHMap); QSurface3DSeries *layerThreeSeries = new QSurface3DSeries(layerThreeProxy); layerThreeSeries->setItemLabelFormat(QStringLiteral("(@xLabel, @zLabel): @yLabel")); layerThreeProxy->setValueRanges(34.0f, 40.0f, 18.0f, 24.0f); layerThreeSeries->setDrawMode(QSurface3DSeries::DrawSurface); layerThreeSeries->setFlatShadingEnabled(false); m_graph->axisX()->setLabelFormat("%.1f N"); m_graph->axisZ()->setLabelFormat("%.1f E"); m_graph->axisX()->setRange(34.0f, 40.0f); m_graph->axisY()->setRange(0.0f, 200.0f); m_graph->axisZ()->setRange(18.0f, 24.0f); m_graph->axisX()->setTitle(QStringLiteral("Latitude")); m_graph->axisY()->setTitle(QStringLiteral("Height")); m_graph->axisZ()->setTitle(QStringLiteral("Longitude")); m_graph->addSeries(layerOneSeries); m_graph->addSeries(layerTwoSeries); m_graph->addSeries(layerThreeSeries); QLinearGradient grOne; grOne.setColorAt(0.0, Qt::black); grOne.setColorAt(0.38, Qt::darkYellow); grOne.setColorAt(0.39, Qt::darkGreen); grOne.setColorAt(0.5, Qt::darkGray); grOne.setColorAt(1.0, Qt::gray); m_graph->seriesList().at(0)->setBaseGradient(grOne); m_graph->seriesList().at(0)->setColorStyle(Q3DTheme::ColorStyleRangeGradient); QLinearGradient grTwo; grTwo.setColorAt(0.385, Qt::blue); grTwo.setColorAt(0.395, Qt::white); m_graph->seriesList().at(1)->setBaseGradient(grTwo); m_graph->seriesList().at(1)->setColorStyle(Q3DTheme::ColorStyleRangeGradient); QLinearGradient grThree; grThree.setColorAt(0.0, Qt::white); grThree.setColorAt(0.05, Qt::black); m_graph->seriesList().at(2)->setBaseGradient(grThree); m_graph->seriesList().at(2)->setColorStyle(Q3DTheme::ColorStyleRangeGradient); m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront); connect(m_graph, &QAbstract3DGraph::selectedElementChanged, this, &CustomItemGraph::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); QCustom3DLabel *titleLabel = new QCustom3DLabel("Oil Rigs on Imaginary Sea", titleFont, QVector3D(0.0f, 1.2f, 0.0f), QVector3D(1.0f, 1.0f, 0.0f), QQuaternion()); titleLabel->setPositionAbsolute(true); titleLabel->setFacingCamera(true); titleLabel->setBackgroundColor(QColor(0x66cdaa)); m_graph->addCustomItem(titleLabel); toggleItemOne(true); toggleItemTwo(true); } CustomItemGraph::~CustomItemGraph() { delete m_graph; } void CustomItemGraph::toggleItemOne(bool show) { QVector3D positionOne = QVector3D(39.0f, 77.0f, 19.2f); QVector3D positionOnePipe = QVector3D(39.0f, 45.0f, 19.2f); QVector3D positionOneLabel = QVector3D(39.0f, 107.0f, 19.2f); if (show) { QImage color = QImage(2, 2, QImage::Format_RGB32); color.fill(Qt::red); QCustom3DItem *item = new QCustom3DItem(":/items/oilrig.obj", positionOne, QVector3D(0.025f, 0.025f, 0.025f), QQuaternion::fromAxisAndAngle(0.0f, 1.0f, 0.0f, 45.0f), color); m_graph->addCustomItem(item); item = new QCustom3DItem(":/items/pipe.obj", positionOnePipe, QVector3D(0.005f, 0.5f, 0.005f), QQuaternion(), color); item->setShadowCasting(false); m_graph->addCustomItem(item); QCustom3DLabel *label = new QCustom3DLabel(); label->setText("Oil Rig One"); label->setPosition(positionOneLabel); label->setScaling(QVector3D(1.0f, 1.0f, 1.0f)); m_graph->addCustomItem(label); } else { resetSelection(); m_graph->removeCustomItemAt(positionOne); m_graph->removeCustomItemAt(positionOnePipe); m_graph->removeCustomItemAt(positionOneLabel); } } void CustomItemGraph::toggleItemTwo(bool show) { QVector3D positionTwo = QVector3D(34.5f, 77.0f, 23.4f); QVector3D positionTwoPipe = QVector3D(34.5f, 45.0f, 23.4f); QVector3D positionTwoLabel = QVector3D(34.5f, 107.0f, 23.4f); if (show) { QImage color = QImage(2, 2, QImage::Format_RGB32); color.fill(Qt::red); QCustom3DItem *item = new QCustom3DItem(); item->setMeshFile(":/items/oilrig.obj"); item->setPosition(positionTwo); item->setScaling(QVector3D(0.025f, 0.025f, 0.025f)); item->setRotation(QQuaternion::fromAxisAndAngle(0.0f, 1.0f, 0.0f, 25.0f)); item->setTextureImage(color); m_graph->addCustomItem(item); item = new QCustom3DItem(":/items/pipe.obj", positionTwoPipe, QVector3D(0.005f, 0.5f, 0.005f), QQuaternion(), color); item->setShadowCasting(false); m_graph->addCustomItem(item); QCustom3DLabel *label = new QCustom3DLabel(); label->setText("Oil Rig Two"); label->setPosition(positionTwoLabel); label->setScaling(QVector3D(1.0f, 1.0f, 1.0f)); m_graph->addCustomItem(label); } else { resetSelection(); m_graph->removeCustomItemAt(positionTwo); m_graph->removeCustomItemAt(positionTwoPipe); m_graph->removeCustomItemAt(positionTwoLabel); } } void CustomItemGraph::toggleItemThree(bool show) { QVector3D positionThree = QVector3D(34.5f, 86.0f, 19.1f); QVector3D positionThreeLabel = QVector3D(34.5f, 116.0f, 19.1f); if (show) { QImage color = QImage(2, 2, QImage::Format_RGB32); color.fill(Qt::darkMagenta); QCustom3DItem *item = new QCustom3DItem(); item->setMeshFile(":/items/refinery.obj"); item->setPosition(positionThree); item->setScaling(QVector3D(0.04f, 0.04f, 0.04f)); item->setRotation(QQuaternion::fromAxisAndAngle(0.0f, 1.0f, 0.0f, 75.0f)); item->setTextureImage(color); m_graph->addCustomItem(item); QCustom3DLabel *label = new QCustom3DLabel(); label->setText("Refinery"); label->setPosition(positionThreeLabel); label->setScaling(QVector3D(1.0f, 1.0f, 1.0f)); m_graph->addCustomItem(label); } else { resetSelection(); m_graph->removeCustomItemAt(positionThree); m_graph->removeCustomItemAt(positionThreeLabel); } } void CustomItemGraph::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 CustomItemGraph::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 CustomItemGraph::toggleShadows(bool shadows) { if (shadows) m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualityMedium); else m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualityNone); } void CustomItemGraph::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 CustomItemGraph::resetSelection() { m_selectionAnimation->stop(); if (m_previouslyAnimatedItem) m_previouslyAnimatedItem->setScaling(m_previousScaling); m_previouslyAnimatedItem = 0; }

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