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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtDataVis3D module.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
**
****************************************************************************/
#include "scatterchart.h"
#include <QtDataVis3D/qscatterdataproxy.h>
#include <QtDataVis3D/q3dvalueaxis.h>
#include <qmath.h>
using namespace QtDataVis3D;
//#define RANDOM_SCATTER // Uncomment this to switch to random scatter
const int numberOfItems = 10000;
ScatterDataModifier::ScatterDataModifier(Q3DScatter *scatter)
: m_chart(scatter),
m_fontSize(40.0f)
{
QFont font = m_chart->font();
font.setPointSize(m_fontSize);
m_chart->setFont(font);
m_chart->setObjectType(QDataVis::Spheres, true);
m_chart->setTheme(QDataVis::ThemeBrownSand);
m_chart->setShadowQuality(QDataVis::ShadowHigh);
m_chart->setCameraPreset(QDataVis::PresetFront);
m_chart->setAxisX(new Q3DValueAxis);
m_chart->setAxisY(new Q3DValueAxis);
m_chart->setAxisZ(new Q3DValueAxis);
QScatterDataProxy *proxy = new QScatterDataProxy;
proxy->setItemLabelFormat("@xTitle: @xLabel @yTitle: @yLabel @zTitle: @zLabel");
m_chart->setActiveDataProxy(proxy);
}
ScatterDataModifier::~ScatterDataModifier()
{
delete m_chart;
}
void ScatterDataModifier::start()
{
addData();
}
void ScatterDataModifier::addData()
{
// Add labels
m_chart->axisX()->setTitle("X");
m_chart->axisY()->setTitle("Y");
m_chart->axisZ()->setTitle("Z");
m_chart->axisX()->setRange(-50.0, 50.0);
m_chart->axisY()->setRange(-1.0, 1.0);
m_chart->axisZ()->setRange(-50.0, 50.0);
QScatterDataArray *dataArray = new QScatterDataArray;
dataArray->resize(numberOfItems);
QScatterDataItem *ptrToDataArray = &dataArray->first();
#ifdef RANDOM_SCATTER
for (int i = 0; i < numberOfItems; i++) {
ptrToDataArray->setPosition(randVector());
ptrToDataArray++;
}
#else
float limit = qSqrt(numberOfItems) / 2.0f;
for (float i = -limit; i < limit; i++) {
for (float j = -limit; j < limit; j++) {
ptrToDataArray->setPosition(QVector3D(i, qCos(qDegreesToRadians((i * j) / 7.5)), j));
ptrToDataArray++;
}
}
#endif
static_cast<QScatterDataProxy *>(m_chart->activeDataProxy())->resetArray(dataArray);
}
void ScatterDataModifier::changeStyle()
{
static int model = 0;
switch (model) {
case 0:
m_chart->setObjectType(QDataVis::Dots, false);
break;
case 1:
m_chart->setObjectType(QDataVis::Dots, true);
break;
case 2:
m_chart->setObjectType(QDataVis::Spheres, false);
break;
case 3:
m_chart->setObjectType(QDataVis::Spheres, true);
break;
}
model++;
if (model > 3)
model = 0;
}
void ScatterDataModifier::changePresetCamera()
{
static int preset = QDataVis::PresetFrontLow;
m_chart->setCameraPreset((QDataVis::CameraPreset)preset);
if (++preset > QDataVis::PresetDirectlyAboveCCW45)
preset = QDataVis::PresetFrontLow;
}
void ScatterDataModifier::changeTheme()
{
static int theme = QDataVis::ThemeSystem;
m_chart->setTheme((QDataVis::ColorTheme)theme);
if (++theme > QDataVis::ThemeLight)
theme = QDataVis::ThemeSystem;
}
void ScatterDataModifier::changeTransparency()
{
static int transparency = QDataVis::TransparencyNone;
m_chart->setLabelTransparency((QDataVis::LabelTransparency)transparency);
if (++transparency > QDataVis::TransparencyNoBackground)
transparency = QDataVis::TransparencyNone;
}
void ScatterDataModifier::changeFont(const QFont &font)
{
QFont newFont = font;
newFont.setPointSizeF(m_fontSize);
m_chart->setFont(newFont);
}
void ScatterDataModifier::shadowQualityUpdatedByVisual(QDataVis::ShadowQuality sq)
{
int quality = int(sq);
// Updates the UI component to show correct shadow quality
emit shadowQualityChanged(quality);
}
void ScatterDataModifier::changeShadowQuality(int quality)
{
QDataVis::ShadowQuality sq = QDataVis::ShadowQuality(quality);
m_chart->setShadowQuality(sq);
emit shadowQualityChanged(quality);
}
void ScatterDataModifier::setBackgroundEnabled(int enabled)
{
m_chart->setBackgroundVisible((bool)enabled);
}
void ScatterDataModifier::setGridEnabled(int enabled)
{
m_chart->setGridVisible((bool)enabled);
}
QVector3D ScatterDataModifier::randVector()
{
return QVector3D(
(float)(rand() % 100) / 2.0f - (float)(rand() % 100) / 2.0f,
(float)(rand() % 100) / 100.0f - (float)(rand() % 100) / 100.0f,
(float)(rand() % 100) / 2.0f - (float)(rand() % 100) / 2.0f);
}
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