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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};
}
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