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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "scatterdatamodifier.h"
#include <QtGraphs/QScatterDataProxy>
#include <QtGraphs/QValue3DAxis>
#include <QtGraphs/Q3DScene>
#include <QtGraphs/QScatter3DSeries>
#include <QtCore/qmath.h>
#include <QtCore/QFile>
#include <QtCore/QTextStream>
#include <QtCore/QDebug>
ScatterDataModifier::ScatterDataModifier(Q3DScatterWidgetItem *scatter)
: m_graph(scatter)
{
m_graph->activeTheme()->setTheme(QGraphsTheme::Theme::QtGreen);
m_graph->setShadowQuality(QtGraphs3D::ShadowQuality::Medium);
m_graph->setCameraPreset(QtGraphs3D::CameraPreset::Front);
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::Mesh::Cube);
series->setItemSize(0.15f);
m_graph->addSeries(series);
//! [2]
m_animationCameraX = new QPropertyAnimation(m_graph, "cameraXRotation");
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, "cameraYRotation");
upAnimation->setDuration(9000);
upAnimation->setStartValue(QVariant::fromValue(5.0f));
upAnimation->setEndValue(QVariant::fromValue(45.0f));
QPropertyAnimation *downAnimation = new QPropertyAnimation(m_graph, "cameraYRotation");
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->unsetDefaultWheelHandler();
QObject::connect(m_graph, &Q3DGraphsWidgetItem::wheel, this, &ScatterDataModifier::onWheel);
QObject::connect(m_graph, &Q3DGraphsWidgetItem::mouseMove, this, &ScatterDataModifier::onMouseMove);
QObject::connect(m_graph, &Q3DGraphsWidgetItem::tapped, this, &ScatterDataModifier::onTapped);
QObject::connect(m_graph,
&Q3DGraphsWidgetItem::queriedGraphPositionChanged,
this,
&ScatterDataModifier::onPositionQueryChanged);
//! [0]
}
ScatterDataModifier::~ScatterDataModifier()
{
delete m_graph;
}
void ScatterDataModifier::start()
{
addData();
}
void ScatterDataModifier::addData()
{
QList<QVector3D> itemList;
// Read data items from the file to QList
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(",", Qt::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 QList to datamodel
QScatterDataArray dataArray;
dataArray.resize(itemList.size());
for (int i = 0; i < itemList.size(); i++)
dataArray[i].setPosition(itemList.at(i));
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::onWheel(QWheelEvent *event)
{
// Adjust zoom level based on what zoom range we're in.
int zoomLevel = m_graph->cameraZoomLevel();
if (zoomLevel > 100)
zoomLevel += event->angleDelta().y() / 12;
else if (zoomLevel > 50)
zoomLevel += event->angleDelta().y() / 60;
else
zoomLevel += event->angleDelta().y() / 120;
if (zoomLevel > 500)
zoomLevel = 500;
else if (zoomLevel < 10)
zoomLevel = 10;
m_graph->setCameraZoomLevel(zoomLevel);
}
void ScatterDataModifier::onMouseMove(QPoint mousePos)
{
m_mousePos = mousePos;
m_graph->doPicking(mousePos);
}
void ScatterDataModifier::onTapped(QEventPoint eventPoint, Qt::MouseButton button)
{
Q_UNUSED(button);
QPoint point = eventPoint.position().toPoint();
qDebug() << "Queried at: " << point;
m_graph->scene()->setGraphPositionQuery(point);
}
void ScatterDataModifier::onPositionQueryChanged(const QVector3D &position)
{
qDebug() << "Queried Position from signal:" << position;
qDebug() << "Queried Position from graph :" << m_graph->queriedGraphPosition();
}
void ScatterDataModifier::shadowQualityUpdatedByVisual(QtGraphs3D::ShadowQuality sq)
{
int quality = int(sq);
emit shadowQualityChanged(quality); // connected to a checkbox in main.cpp
}
void ScatterDataModifier::changeShadowQuality(int quality)
{
QtGraphs3D::ShadowQuality sq = QtGraphs3D::ShadowQuality(quality);
m_graph->setShadowQuality(sq);
}
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