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JKQtPlotter/examples/geo_simple/geo_simple.cpp

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/** \example geo_simple.cpp
* This project contains code that is used to generate the example graphs for geometric objects from teh documentation.
*
* \ref JKQTPlotterGeometricGraphsSimple
*/
#include <QCheckBox>
#include <QComboBox>
#include <QApplication>
#include "jkqtplotter/jkqtplotter.h"
#include "jkqtplotter/graphs/jkqtpgeometric.h"
template <class TELLIPSEPART>
void drawExample(JKQTPlotter* plot, double x0, double y0, double wid, double heig, double angleStart, double angleStop) {
JKQTPGeoRectangle* rect;
plot->addGraph(rect=new JKQTPGeoRectangle(plot,x0, y0, wid, heig));
rect->setLineColor(QColor("orange"));
rect->setLineStyle(Qt::PenStyle::DashLine);
rect->setFillColor(Qt::transparent);
rect->setLineWidth(1);
JKQTPGeoEllipse* ell;
plot->addGraph(ell=new JKQTPGeoEllipse(plot,x0, y0, wid, heig));
ell->setLineColor(QColor("orange"));
ell->setLineStyle(Qt::PenStyle::DashLine);
ell->setFillColor(Qt::transparent);
ell->setLineWidth(1);
TELLIPSEPART* obj;
plot->addGraph(obj=new TELLIPSEPART(plot,x0, y0, wid, heig, 10, angleStop));
obj->setLineColor(QColor("blue"));
obj->setLineStyle(Qt::PenStyle::SolidLine);
obj->setLineWidth(4);
JKQTPGeoBaseFilled* fillobj=dynamic_cast<JKQTPGeoBaseFilled*>(obj);
if (fillobj) {
fillobj->setFillColor(QColor("lightblue"));
fillobj->setAlpha(0.8);
}
JKQTPGeoLine* l;
plot->addGraph(new JKQTPGeoSymbol(plot, x0, y0, JKQTPCircle, 5, QColor("red")));
plot->addGraph(l=new JKQTPGeoLine(plot, x0, y0, x0+wid/2.0*cos(angleStart/180.0*JKQTPSTATISTICS_PI),y0+heig/2.0*sin(angleStart/180.0*JKQTPSTATISTICS_PI))); l->setColor(QColor("orange"));
plot->addGraph(new JKQTPGeoText(plot, x0+wid*1.1/2.0*cos(angleStart/180.0*JKQTPSTATISTICS_PI),y0+heig*1.1/2.0*sin(angleStart/180.0*JKQTPSTATISTICS_PI), "\\alpha_\\text{start}="+QString::number(angleStart, 'f', 0)+"\\degree", 10, QColor("orange")));
plot->addGraph(new JKQTPGeoLine(plot, x0, y0, x0+wid/2.0*cos(angleStop/180.0*JKQTPSTATISTICS_PI),y0+heig/2.0*sin(angleStop/180.0*JKQTPSTATISTICS_PI))); l->setColor(QColor("red"));
plot->addGraph(new JKQTPGeoText(plot, x0+wid*1.1/2.0*cos(angleStop/180.0*JKQTPSTATISTICS_PI),y0+heig*1.1/2.0*sin(angleStop/180.0*JKQTPSTATISTICS_PI), "\\alpha_\\text{stop}="+QString::number(angleStop, 'f', 0)+"\\degree", 10, QColor("red")));
plot->addGraph(new JKQTPGeoLine(plot, x0, y0, x0+wid/2.0*cos(0/180.0*JKQTPSTATISTICS_PI),y0+heig/2.0*sin(0/180.0*JKQTPSTATISTICS_PI)));l->setColor(QColor("orange"));
plot->addGraph(new JKQTPGeoText(plot, x0+wid*1.1/2.0*cos(0/180.0*JKQTPSTATISTICS_PI),y0+heig*1.1/2.0*sin(0/180.0*JKQTPSTATISTICS_PI), "0\\degree", 10, QColor("orange")));
plot->addGraph(new JKQTPGeoText(plot, x0,y0-0.05*heig, "(x,y)", 10, QColor("red")));
plot->addGraph(new JKQTPGeoText(plot, x0,y0-heig*1.1/2.0, "width="+QString::number(wid, 'f', 1), 10, QColor("red")));
plot->addGraph(new JKQTPGeoText(plot, x0-wid*1.05/2.0,y0, "height="+QString::number(heig, 'f', 1), 10, QColor("red")));
}
void drawEllExample(JKQTPlotter* plot, double x0, double y0, double wid, double heig, double angle=0) {
JKQTPGeoRectangle* rec;
plot->addGraph(rec=new JKQTPGeoRectangle(plot,x0, y0, wid, heig));
rec->setAngle(angle);
rec->setLineColor(QColor("orange"));
rec->setLineStyle(Qt::PenStyle::DashLine);
rec->setFillColor(Qt::transparent);
rec->setLineWidth(1);
JKQTPGeoEllipse* fillobj;
plot->addGraph(fillobj=new JKQTPGeoEllipse(plot,x0, y0, wid, heig));
fillobj->setLineColor(QColor("blue"));
fillobj->setLineStyle(Qt::PenStyle::DashLine);
fillobj->setFillColor(Qt::transparent);
fillobj->setLineWidth(1);
fillobj->setFillColor(QColor("lightblue"));
fillobj->setAlpha(0.8);
fillobj->setAngle(angle);
plot->addGraph(new JKQTPGeoSymbol(plot, x0, y0, JKQTPCircle, 5, QColor("red")));
plot->addGraph(new JKQTPGeoText(plot, x0,y0-0.05*heig, "(x,y)", 10, QColor("red")));
if (fabs(angle)<0.01) {
plot->addGraph(new JKQTPGeoText(plot, x0,y0-heig*1.1/2.0, "width="+QString::number(wid, 'f', 1), 10, QColor("red")));
plot->addGraph(new JKQTPGeoText(plot, x0-wid*1.05/2.0,y0, "height="+QString::number(heig, 'f', 1), 10, QColor("red")));
} else {
JKQTPGeoLine* l;
plot->addGraph(l=new JKQTPGeoLine(plot, x0, y0, x0+wid/2.0*cos(angle/180.0*JKQTPSTATISTICS_PI),y0+heig/2.0*sin(angle/180.0*JKQTPSTATISTICS_PI))); l->setColor( QColor("red"));
plot->addGraph(new JKQTPGeoText(plot, x0+wid*1.1/2.0*cos(angle/180.0*JKQTPSTATISTICS_PI),y0+heig*1.1/2.0*sin(angle/180.0*JKQTPSTATISTICS_PI), "\\alpha="+QString::number(angle, 'f', 0)+"\\degree", 10, QColor("red")));
plot->addGraph(l=new JKQTPGeoLine(plot, x0, y0, x0+wid/2.0*cos(0/180.0*JKQTPSTATISTICS_PI),y0+heig/2.0*sin(0/180.0*JKQTPSTATISTICS_PI))); l->setColor( QColor("orange"));
plot->addGraph(new JKQTPGeoText(plot, x0+wid*1.1/2.0*cos(0/180.0*JKQTPSTATISTICS_PI),y0+heig*1.1/2.0*sin(0/180.0*JKQTPSTATISTICS_PI), "0\\degree", 10, QColor("orange")));
}
}
int main(int argc, char* argv[])
{
QApplication app(argc, argv);
// 1. create a Widget with a plotter and some control-elements
QWidget widMain;
QGridLayout* layMain=new QGridLayout;
widMain.setLayout(layMain);
JKQTPlotter* plot=new JKQTPlotter(&widMain);
JKQTPlotter* plotlog=new JKQTPlotter(&widMain);
layMain->addWidget(plot, 1,0,1,3);
layMain->addWidget(plotlog, 1,3,1,3);
layMain->setRowStretch(1,1);
QCheckBox* chk;
QComboBox* cmb;
// combobox to select what to draw
layMain->addWidget(new QLabel(QObject::tr("Object: "), &widMain), 0, 1);
layMain->addWidget(cmb=new QComboBox(&widMain), 0, 2);
cmb->addItem(QObject::tr("JKQTPGeoArc"));
cmb->addItem(QObject::tr("JKQTPGeoPie"));
cmb->addItem(QObject::tr("JKQTPGeoChord"));
cmb->addItem(QObject::tr("JKQTPGeoEllipse"));
cmb->addItem(QObject::tr("JKQTPGeoEllipse, angle=-35deg"));
cmb->setCurrentIndex(0);
auto drawFunctor=[&](int index) {
plot->clearGraphs();
plotlog->clearGraphs();
if (index==0) {
drawExample<JKQTPGeoArc>(plot, 1,1,1,1.5,10,110);
drawExample<JKQTPGeoArc>(plotlog, 1,1,1,1.5,10,110);
} else if (index==1) {
drawExample<JKQTPGeoPie>(plot, 1,1,1,1.5,10,110);
drawExample<JKQTPGeoPie>(plotlog, 1,1,1,1.5,10,110);
} else if (index==2) {
drawExample<JKQTPGeoChord>(plot, 1,1,1,1.5,10,110);
drawExample<JKQTPGeoChord>(plotlog, 1,1,1,1.5,10,110);
} else if (index==3) {
drawEllExample(plot, 1,1,1,1.5);
drawEllExample(plotlog, 1,1,1,1.5);
} else if (index==4) {
drawEllExample(plot, 1,1,1,1.5,-35);
drawEllExample(plotlog, 1,1,1,1.5,-35);
}
plot->zoomToFit();
plotlog->zoomToFit();
};
QObject::connect(cmb, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), drawFunctor);
// when checkbox is toggled: aspect-ration is maintained, or not
layMain->addWidget(chk=new QCheckBox(QObject::tr("maintain aspect ratio"), &widMain), 0, 3);
chk->setChecked(true);
QObject::connect(chk, &QCheckBox::toggled, [&](bool checked) {
plot->getPlotter()->setMaintainAspectRatio(checked);
plot->getPlotter()->setMaintainAxisAspectRatio(checked);
plotlog->getPlotter()->setMaintainAspectRatio(checked);
plotlog->getPlotter()->setMaintainAxisAspectRatio(checked);
});
// when checkbox is toggled: aspect-ration is maintained, or not
layMain->addWidget(new QLabel(QObject::tr("DrawMode: "), &widMain), 0, 4);
layMain->addWidget(cmb=new QComboBox(&widMain), 0, 5);
cmb->addItem(QObject::tr("DrawAsGraphicElement"));
cmb->addItem(QObject::tr("DrawAsMathematicalCurve"));
cmb->setCurrentIndex(0);
QObject::connect(cmb, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [&](int index) {
for (size_t i=0; i<plot->getPlotter()->getGraphCount(); i++) {
JKQTPGeometricPlotElement* obj=dynamic_cast<JKQTPGeometricPlotElement*>(plot->getPlotter()->getGraph(i));
if (obj) {
obj->setDrawMode((index==0)?JKQTPGeometricPlotElement::DrawAsGraphicElement:JKQTPGeometricPlotElement::DrawAsMathematicalCurve);
}
}
plot->redrawPlot();
for (size_t i=0; i<plotlog->getPlotter()->getGraphCount(); i++) {
JKQTPGeometricPlotElement* obj=dynamic_cast<JKQTPGeometricPlotElement*>(plotlog->getPlotter()->getGraph(i));
if (obj) {
obj->setDrawMode((index==0)?JKQTPGeometricPlotElement::DrawAsGraphicElement:JKQTPGeometricPlotElement::DrawAsMathematicalCurve);
}
}
plotlog->redrawPlot();
});
// 2. format graph:
// 2.1 set the asxpect ratio to 1
plot->getPlotter()->setMaintainAspectRatio(true);
plot->getPlotter()->setAspectRatio(1);
plot->getPlotter()->setMaintainAxisAspectRatio(true);
plot->getPlotter()->setAxisAspectRatio(1);
// 2.2 set the asxpect ratio to 1
plot->getXAxis()->setDrawGrid(true);
plot->getYAxis()->setDrawGrid(true);
plot->getXAxis()->setDrawMinorGrid(true);
plot->getYAxis()->setDrawMinorGrid(true);
// 2.3 show 9 minor ticks between two major ticks
plot->getXAxis()->setMinorTicks(9);
plot->getYAxis()->setMinorTicks(9);
// 2.4 set log-axes
plotlog->getXAxis()->setLogAxis(true);
plotlog->getYAxis()->setLogAxis(true);
// 2.5 set the asxpect ratio to 1
plotlog->getPlotter()->setMaintainAspectRatio(true);
plotlog->getPlotter()->setAspectRatio(1);
plotlog->getPlotter()->setMaintainAxisAspectRatio(true);
plotlog->getPlotter()->setAxisAspectRatio(1);
// 2.6 set the asxpect ratio to 1
plotlog->getXAxis()->setDrawGrid(true);
plotlog->getYAxis()->setDrawGrid(true);
plotlog->getXAxis()->setDrawMinorGrid(true);
plotlog->getYAxis()->setDrawMinorGrid(true);
// 2.7 show 9 minor ticks between two major ticks
plotlog->getXAxis()->setMinorTicks(9);
plotlog->getYAxis()->setMinorTicks(9);
cmb->setCurrentIndex(0);
drawFunctor(0);
// 4. show plotter and make it a decent size
widMain.show();
widMain.resize(800,500);
return app.exec();
}
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