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++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #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 <QtCore/qmath.h>
++ #include <QtCore/qrandom.h>
++ #include <QtWidgets/qcombobox.h>
++
++ using namespace Qt::StringLiterals;
++
++ //#define RANDOM_SCATTER // Uncomment this to switch to random scatter
++
++ const int numberOfItems = 10000;
++ const float curveDivider = 7.5f;
++ const int lowerNumberOfItems = 900;
++ const float lowerCurveDivider = 0.75f;
++
++ ScatterDataModifier::ScatterDataModifier(Q3DScatter *scatter, QObject *parent) :
++ QObject(parent),
++ m_graph(scatter),
++ m_itemCount(lowerNumberOfItems),
++ m_curveDivider(lowerCurveDivider),
++ //! [7]
++ m_inputHandler(new AxesInputHandler(scatter))
++ //! [7]
++ {
++ //! [0]
++ m_graph->activeTheme()->setType(Q3DTheme::ThemeStoneMoss);
++ m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualitySoftHigh);
++ m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront);
++ m_graph->scene()->activeCamera()->setZoomLevel(80.f);
++ //! [0]
++
++ //! [1]
++ auto *proxy = new QScatterDataProxy;
++ auto *series = new QScatter3DSeries(proxy);
++ series->setItemLabelFormat(u"@xTitle: @xLabel @yTitle: @yLabel @zTitle: @zLabel"_s);
++ series->setMeshSmooth(m_smooth);
++ m_graph->addSeries(series);
++ //! [1]
++
++ //! [8]
++ // Give ownership of the handler to the graph and make it the active handler
++ m_graph->setActiveInputHandler(m_inputHandler);
++ //! [8]
++
++ //! [9]
++ // Give our axes to the input handler
++ m_inputHandler->setAxes(m_graph->axisX(), m_graph->axisZ(), m_graph->axisY());
++ //! [9]
++
++ //! [2]
++ addData();
++ //! [2]
++ }
++
++ void ScatterDataModifier::addData()
++ {
++ // Configure the axes according to the data
++ //! [3]
++ m_graph->axisX()->setTitle("X");
++ m_graph->axisY()->setTitle("Y");
++ m_graph->axisZ()->setTitle("Z");
++ //! [3]
++
++ //! [4]
++ auto *dataArray = new QScatterDataArray;
++ dataArray->reserve(m_itemCount);
++ //! [4]
++
++ #ifdef RANDOM_SCATTER
++ for (int i = 0; i < m_itemCount; ++i)
++ dataArray->append(QScatterDataItem(randVector()));
++ #else
++ //! [5]
++ const float limit = qSqrt(m_itemCount) / 2.0f;
++ for (int i = -limit; i < limit; ++i) {
++ for (int j = -limit; j < limit; ++j) {
++ const float x = float(i) + 0.5f;
++ const float y = qCos(qDegreesToRadians(float(i * j) / m_curveDivider));
++ const float z = float(j) + 0.5f;
++ dataArray->append(QScatterDataItem({x, y, z}));
++ }
++ }
++ //! [5]
++ #endif
++
++ //! [6]
++ m_graph->seriesList().at(0)->dataProxy()->resetArray(dataArray);
++ //! [6]
++ }
++
++ void ScatterDataModifier::changeStyle(int style)
++ {
++ QComboBox *comboBox = qobject_cast<QComboBox *>(sender());
++ if (comboBox) {
++ m_style = comboBox->itemData(style).value<QAbstract3DSeries::Mesh>();
++ if (!m_graph->seriesList().isEmpty())
++ m_graph->seriesList().at(0)->setMesh(m_style);
++ }
++ }
++
++ void ScatterDataModifier::setSmoothDots(int smooth)
++ {
++ m_smooth = bool(smooth);
++ QScatter3DSeries *series = m_graph->seriesList().at(0);
++ series->setMeshSmooth(m_smooth);
++ }
++
++ void ScatterDataModifier::changeTheme(int theme)
++ {
++ Q3DTheme *currentTheme = m_graph->activeTheme();
++ currentTheme->setType(Q3DTheme::Theme(theme));
++ emit backgroundEnabledChanged(currentTheme->isBackgroundEnabled());
++ emit gridEnabledChanged(currentTheme->isGridEnabled());
++ }
++
++ 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::shadowQualityUpdatedByVisual(QAbstract3DGraph::ShadowQuality sq)
++ {
++ int quality = int(sq);
++ emit shadowQualityChanged(quality); // connected to a checkbox in scattergraph.cpp
++ }
++
++ void ScatterDataModifier::changeShadowQuality(int quality)
++ {
++ QAbstract3DGraph::ShadowQuality sq = QAbstract3DGraph::ShadowQuality(quality);
++ m_graph->setShadowQuality(sq);
++ }
++
++ void ScatterDataModifier::setBackgroundEnabled(int enabled)
++ {
++ m_graph->activeTheme()->setBackgroundEnabled(enabled == Qt::Checked);
++ }
++
++ void ScatterDataModifier::setGridEnabled(int enabled)
++ {
++ m_graph->activeTheme()->setGridEnabled(enabled == Qt::Checked);
++ }
++
++ void ScatterDataModifier::toggleItemCount()
++ {
++ if (m_itemCount == numberOfItems) {
++ m_itemCount = lowerNumberOfItems;
++ m_curveDivider = lowerCurveDivider;
++ } else {
++ m_itemCount = numberOfItems;
++ m_curveDivider = curveDivider;
++ }
++ m_graph->seriesList().at(0)->dataProxy()->resetArray(0);
++ addData();
++ }
++
++ void ScatterDataModifier::toggleRanges()
++ {
++ if (!m_autoAdjust) {
++ m_graph->axisX()->setAutoAdjustRange(true);
++ m_graph->axisZ()->setAutoAdjustRange(true);
++ m_inputHandler->setDragSpeedModifier(1.5f);
++ m_autoAdjust = true;
++ } else {
++ m_graph->axisX()->setRange(-10.0f, 10.0f);
++ m_graph->axisZ()->setRange(-10.0f, 10.0f);
++ m_inputHandler->setDragSpeedModifier(15.0f);
++ m_autoAdjust = false;
++ }
++ }
++
++ QVector3D ScatterDataModifier::randVector()
++ {
++ auto *generator = QRandomGenerator::global();
++ const auto x = float(generator->bounded(100)) / 2.0f - float(generator->bounded(100)) / 2.0f;
++ const auto y = float(generator->bounded(100)) / 100.0f - float(generator->bounded(100)) / 100.0f;
++ const auto z = float(generator->bounded(100)) / 2.0f - float(generator->bounded(100)) / 2.0f;
++ return {x, y, z};
++ }