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66 lines
2.3 KiB
C++
Executable file
66 lines
2.3 KiB
C++
Executable file
#include <PlotLib/PlotLib.h>
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#include <plugin/png/png.h>
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using namespace Upp;
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#define IMAGECLASS Symbol
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#define IMAGEFILE <PlotLibExample/symbol.iml>
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#include <Draw/iml.h>
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// If you wish, you can define virtualy anything as symbol, just use the WithPlotSymbol
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// template, which will setup almost everything for you and override the PaintOp method
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class Bug: public WithPlotSymbol<Bug>{
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public:
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virtual void PaintOp(Painter& sw)const{
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sw.Rectangle(0,0,s.cx,s.cy).Fill(Symbol::bug(),0,0,s.cx,0);
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}
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Bug(){s=Sizef(11,11);};
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};
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CONSOLE_APP_MAIN {
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Plot plot;
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// Register your PlotSymbol. This is not mandatory,
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// it only makes the symbol appear in PlotStyleDlg
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PlotSymbol::Register<Bug>("Ladybug");
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// You can create your data directly in plot ...
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plot.data.Add();
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plot.data[0].SetColor(LtRed()).SetTitle("Butterfly Curve");
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for(double t = -12*M_PI; t <= 12*M_PI; t+=0.02){
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double r=(exp(cos(t))-2*cos(4*t)+pow(sin(t/12),5));
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plot.data[0].AddXY(r*sin(t),r*cos(t));
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}
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// ... or take your data from elsewhere and copy them in plot. Supported types are
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// Vector<Pointf>, VectorMap, and Vector of reasonable formats (i.e. convertable
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// to double) + the same containers in Array flavor
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VectorMap<double,double> v;
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for(double x = -4; x <= 4; x+=0.05){
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v.Add(x,4*exp(-0.25*x*x)*sin(10*x));
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}
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plot.data.Add(v);
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plot.data[1].SetDash("1.5").SetTitle("4*exp(-x^2/4)*sin(10*x)").SetThickness(1.5)
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.SetSymbol("Cross",Size(9,9),Black());
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v.Clear();
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// random Ladybugs! :-)
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PlotData dataset;
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for(double x = -4; x <= 4; x+=0.5){
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dataset.AddXY(x,int(Random(7))-3);
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}
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plot.data.Add(dataset);
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plot.data[2].SetColor(Green()).SetTitle("Totally random")
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.SetThickness(2).SetSymbol("Ladybug");
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// Plot can be setup any time before painting
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plot.SetMode(PLOT_AA).SetLimits(-4.0,4.0,-4.0,4.0).SetPlotSize(640,480);
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// When it's all prepared, just call GetImage to get the plot and use the returned image
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// in whatever way you want, e.g. save it into PNG file:
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PNGEncoder().SaveFile(GetHomeDirFile("plot.png"), plot.GetImage());
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// If you want a legend, just create one ;-) It is a separate picture,
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// if you want it combined with the plot, it's up to you...
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PNGEncoder().SaveFile(GetHomeDirFile("legend.png"),
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Legend(plot).SetBackground(White()).GetLegend());
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}
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