JKQtPlotter/examples/simpletest_contourplot/contourplotanimator.cpp
jkriege2 5a4a778faf improved contour plots + added example for contour plots
split contour plot into two variant, one for C-array-data and one for image column data
improved doxygen annotation
2019-05-19 15:22:56 +02:00

52 lines
2.5 KiB
C++

#include "contourplotanimator.h"
ContourPlotAnimator::ContourPlotAnimator(JKQTPDatastore *ds_, JKQTPlotter *pplot_, int NX_, int NY_, double w_, double h_, double dx_, size_t cPotential_):
QObject(pplot_), angle(0), ds(ds_), pplot(pplot_), NX(NX_), NY(NY_), w(w_), h(h_), dx(dx_), cPotential(cPotential_)
{
}
void ContourPlotAnimator::start(int delayMS) {
timerFR.start();
QTimer::singleShot(delayMS, this,&ContourPlotAnimator::step);
}
void ContourPlotAnimator::step() {
double x;
double y=-h/2.0;
const double eps0=8.854187e-12;
double r=1e-6*(5.0+cos(angle/4.0))/6.0;
double r2=1e-6*(5.0+sin(angle/4.0))/6.0;
const double Q1=1.6e-19; // charge of charged particle 1
const double Q1_x0=-r*cos(angle); // x-position of charged particle 1
const double Q1_y0=-r*sin(angle); // y-position of charged particle 1
const double Q2=1.6e-19; // charge of charged particle 2
const double Q2_x0=r*cos(angle); // x-position of charged particle 2
const double Q2_y0=r*sin(angle); // y-position of charged particle 2
const double Q3=-1.6e-19; // charge of charged particle 3
const double Q3_x0=-r2*cos(angle); // x-position of charged particle 3
const double Q3_y0=r2*sin(angle); // y-position of charged particle 3
const double Q4=-1.6e-19; // charge of charged particle 4
const double Q4_x0=r2*cos(angle); // x-position of charged particle 4
const double Q4_y0=-r2*sin(angle); // y-position of charged particle 4
for (size_t iy=0; iy<NY; iy++ ) {
x=-w/2.0;
for (size_t ix=0; ix<NX; ix++ ) {
const double r1=sqrt((x-Q1_x0)*(x-Q1_x0)+(y-Q1_y0)*(y-Q1_y0));
const double r2=sqrt((x-Q2_x0)*(x-Q2_x0)+(y-Q2_y0)*(y-Q2_y0));
const double r3=sqrt((x-Q3_x0)*(x-Q3_x0)+(y-Q3_y0)*(y-Q3_y0));
const double r4=sqrt((x-Q4_x0)*(x-Q4_x0)+(y-Q4_y0)*(y-Q4_y0));
ds->setPixel(cPotential, ix, iy, Q1/(4.0*M_PI*eps0)/r1+Q2/(4.0*M_PI*eps0)/r2+Q3/(4.0*M_PI*eps0)/r3+Q4/(4.0*M_PI*eps0)/r4);
x+=dx;
}
y+=dx;
}
pplot->redrawPlot();
qDebug()<<"animation step: angle="<<angle<<", framerate="<<1.0/(timerFR.elapsed()/1000.0)<<"fps <==> "<<timerFR.elapsed()<<"ms/frame";
pplot->setWindowTitle("JKQTPColumnContourPlot ["+QString::number(1.0/(timerFR.elapsed()/1000.0))+"fps]");
angle+=(2.0/180.0*M_PI);
timerFR.start();
QTimer::singleShot(1, this,SLOT(step()));
}