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42 lines
No EOL
1.6 KiB
C++
42 lines
No EOL
1.6 KiB
C++
#include "ScatterCtrl_Demo.h"
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Pointf opara1(double t) {return Pointf(0.5*cos(2*M_PI*t), 0.5*sin(2*M_PI*t));}
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void para1(Pointf& xy, double t) {xy = Pointf(cos(2*M_PI*t), sin(2*M_PI*t));}
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void para2(Pointf& xy, double t) {xy = Pointf(0.5*cos(6*M_PI*t)+3*t-1, 1.5+0.5*sin(6*M_PI*t));}
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void para3(Pointf& xy, double t) {xy = Pointf(3+(0.5+t)*cos(6*M_PI*t), (0.5+t)*sin(6*M_PI*t));}
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void para4(Pointf& xy, double t) {xy = Pointf(0, -0.25+0.5*t);}
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void para1p(Pointf& xy, double t, double a, double b) {xy = Pointf(a*cos(2*M_PI*t),b*sin(2*M_PI*t));}
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void para3p(Pointf& xy, double t, double a) {xy = Pointf(a+(0.5+t)*cos(6*M_PI*t),(0.5+t)*sin(6*M_PI*t));}
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void Tab3_ParametricFunctions::Init()
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{
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CtrlLayout(*this);
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SizePos();
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scatter.SetRange(7, 4);
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scatter.SetMajorUnits(0.5, 0.5);
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scatter.SetXYMin(-2, -2);
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scatter.AddSeries(&opara1, 20).Legend("Circle 1");
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scatter.AddSeries(¶1, 100).Legend("Circle 2").NoMark();
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scatter.AddSeries(¶2, 100).Legend("Coil").NoMark();
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scatter.AddSeries(¶3, 150).Legend("Spiral 1").NoMark();
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scatter.AddSeries(STDBACK1(para3p, 2.5), 150, 0, 1).Legend("Spiral 2").NoMark();
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scatter.AddSeries(¶4, 2).Legend("VLine").NoMark();
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scatter.AddSeries([=](Pointf &xy, double t) {xy = Pointf(-0.25+0.5*t, 0);}, 2).Legend("HLine").NoMark();
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scatter.AddSeries(STDBACK2(para1p, 4.0, 0.25), 50, 0, 1).Legend("Ellipse 1").NoMark();
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scatter.AddSeries(STDBACK2(para1p, 2.0, 0.5), 50, 0, 1).Legend("Ellipse 2").NoMark();
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}
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ScatterDemo *Construct3()
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{
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static Tab3_ParametricFunctions tab;
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return &tab;
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}
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INITBLOCK {
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RegisterExample("Parametric Functions", Construct3, __FILE__);
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} |