| /**************************************************************************** |
| ** |
| ** 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 |
| ** accordance with the commercial license agreement provided with the |
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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 |
| ** included in the packaging of this file. Please review the following |
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| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #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 <qmath.h> |
| #include <QComboBox> |
| |
| using namespace QtDataVisualization; |
| |
| const int numberOfCols = 8; |
| const int numberOfRows = 8; |
| const float limit = 8.0f; |
| #define HEDGEHOG |
| |
| ScatterDataModifier::ScatterDataModifier(Q3DScatter *scatter) |
| : m_graph(scatter), |
| m_fontSize(40.0f), |
| m_style(QAbstract3DSeries::MeshUserDefined), |
| m_smooth(true) |
| { |
| m_graph->activeTheme()->setType(Q3DTheme::ThemeEbony); |
| QFont font = m_graph->activeTheme()->font(); |
| font.setPointSize(m_fontSize); |
| m_graph->activeTheme()->setFont(font); |
| m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualitySoftLow); |
| m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront); |
| |
| m_graph->setAxisX(new QValue3DAxis); |
| m_graph->setAxisY(new QValue3DAxis); |
| m_graph->setAxisZ(new QValue3DAxis); |
| |
| QScatterDataProxy *proxy = new QScatterDataProxy; |
| QScatter3DSeries *series = new QScatter3DSeries(proxy); |
| series->setItemLabelFormat("@xTitle: @xLabel @yTitle: @yLabel @zTitle: @zLabel"); |
| m_graph->addSeries(series); |
| |
| QObject::connect(&m_rotationTimer, &QTimer::timeout, this, |
| &ScatterDataModifier::triggerRotation); |
| |
| addData(); |
| } |
| |
| ScatterDataModifier::~ScatterDataModifier() |
| { |
| delete m_graph; |
| } |
| |
| void ScatterDataModifier::addData() |
| { |
| // Configure the axes according to the data |
| m_graph->axisX()->setTitle("X"); |
| m_graph->axisY()->setTitle("Y"); |
| m_graph->axisZ()->setTitle("Z"); |
| m_graph->axisX()->setRange(-limit, limit); |
| m_graph->axisY()->setRange(-1.0f, 1.0f); |
| m_graph->axisZ()->setRange(-limit, limit); |
| |
| QScatterDataArray *dataArray = new QScatterDataArray; |
| dataArray->resize(numberOfCols * numberOfRows); |
| QScatterDataItem *ptrToDataArray = &dataArray->first(); |
| |
| float angleStep = 360.0f / float(numberOfCols); |
| float latAngleStep = 100.0f / float(numberOfRows); |
| |
| for (float i = 0; i < numberOfRows; i++) { |
| float latAngle = float(i) * latAngleStep + 40.0f; |
| float radius = qSin(qDegreesToRadians(latAngle)) * limit; |
| float y = qCos(qDegreesToRadians(latAngle)) * 1.0f; |
| #ifdef HEDGEHOG |
| float angleZ = qRadiansToDegrees(qAtan((y * limit / 2.0f) / radius)); |
| QQuaternion rotationZ = QQuaternion::fromAxisAndAngle(QVector3D(0.0f, 0.0f, 1.0f), angleZ - 90.0f); |
| #endif |
| for (float j = 0; j < numberOfCols; j++) { |
| float angle = float(j) * angleStep; |
| float x = qCos(qDegreesToRadians(angle)) * radius; |
| float z = qSin(qDegreesToRadians(angle)) * radius; |
| |
| float angleY = qRadiansToDegrees(qAtan(z / x)); |
| if (x < 0) |
| angleY = 180.0f + angleY; |
| if (x > 0 && z < 0) |
| angleY = 360.0f + angleY; |
| #ifdef HEDGEHOG |
| QQuaternion rotationY = QQuaternion::fromAxisAndAngle(QVector3D(0.0f, 1.0f, 0.0f), angleY); |
| QQuaternion rotation = rotationY * rotationZ; |
| #else |
| QQuaternion rotation = QQuaternion::fromAxisAndAngle(QVector3D(0.0f, 1.0f, 0.0f), angleY) * |
| QQuaternion::fromAxisAndAngle(QVector3D(1.0f, 0.0f, 0.0f), -90.0f); |
| #endif |
| |
| ptrToDataArray->setPosition(QVector3D(x, y, z)); |
| ptrToDataArray->setRotation(rotation); |
| ptrToDataArray++; |
| } |
| } |
| |
| m_graph->seriesList().at(0)->dataProxy()->resetArray(dataArray); |
| } |
| |
| void ScatterDataModifier::enableOptimization(int enabled) |
| { |
| if (enabled) |
| m_graph->setOptimizationHints(QAbstract3DGraph::OptimizationStatic); |
| else |
| m_graph->setOptimizationHints(QAbstract3DGraph::OptimizationDefault); |
| } |
| |
| void ScatterDataModifier::changeStyle(int style) |
| { |
| QComboBox *comboBox = qobject_cast<QComboBox *>(sender()); |
| if (comboBox) { |
| m_style = QAbstract3DSeries::Mesh(comboBox->itemData(style).toInt()); |
| if (m_graph->seriesList().size()) |
| m_graph->seriesList().at(0)->setMesh(m_style); |
| } |
| } |
| |
| void ScatterDataModifier::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()); |
| } |
| |
| 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::changeLabelStyle() |
| { |
| m_graph->activeTheme()->setLabelBackgroundEnabled(!m_graph->activeTheme()->isLabelBackgroundEnabled()); |
| } |
| |
| void ScatterDataModifier::changeFont(const QFont &font) |
| { |
| QFont newFont = font; |
| newFont.setPointSizeF(m_fontSize); |
| m_graph->activeTheme()->setFont(newFont); |
| } |
| |
| void ScatterDataModifier::shadowQualityUpdatedByVisual(QAbstract3DGraph::ShadowQuality sq) |
| { |
| int quality = int(sq); |
| emit shadowQualityChanged(quality); // connected to a checkbox in main.cpp |
| } |
| |
| void ScatterDataModifier::triggerRotation() |
| { |
| if (m_graph->seriesList().size()) { |
| int selectedIndex = m_graph->seriesList().at(0)->selectedItem(); |
| if (selectedIndex != QScatter3DSeries::invalidSelectionIndex()) { |
| static float itemAngle = 0.0f; |
| QScatterDataItem item(*(m_graph->seriesList().at(0)->dataProxy()->itemAt(selectedIndex))); |
| QQuaternion itemRotation = QQuaternion::fromAxisAndAngle(0.0f, 0.0f, 1.0f, itemAngle++); |
| item.setRotation(itemRotation); |
| m_graph->seriesList().at(0)->dataProxy()->setItem(selectedIndex, item); |
| } else { |
| static float seriesAngle = 0.0f; |
| QQuaternion rotation = QQuaternion::fromAxisAndAngle(1.0f, 1.0f, 1.0f, seriesAngle++); |
| m_graph->seriesList().at(0)->setMeshRotation(rotation); |
| } |
| } |
| } |
| |
| void ScatterDataModifier::changeShadowQuality(int quality) |
| { |
| QAbstract3DGraph::ShadowQuality sq = QAbstract3DGraph::ShadowQuality(quality); |
| m_graph->setShadowQuality(sq); |
| } |
| |
| void ScatterDataModifier::setBackgroundEnabled(int enabled) |
| { |
| m_graph->activeTheme()->setBackgroundEnabled((bool)enabled); |
| } |
| |
| void ScatterDataModifier::setGridEnabled(int enabled) |
| { |
| m_graph->activeTheme()->setGridEnabled((bool)enabled); |
| } |
| |
| void ScatterDataModifier::toggleRotation() |
| { |
| if (m_rotationTimer.isActive()) |
| m_rotationTimer.stop(); |
| else |
| m_rotationTimer.start(20); |
| } |