| Problem using Geom2dAPI_InterCurveCurve |
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| haowei |
2012/08/03 11:04 |
I am using Geom2dAPI_InterCurveCurve to computes self-intersections of the curve. this is my test code:
Handle(TColgp_HArray1OfPnt2d) harray = new TColgp_HArray1OfPnt2d (1,12);
harray->SetValue(1,gp_Pnt2d(0,0));
harray->SetValue(2,gp_Pnt2d(10,0));
harray->SetValue(3,gp_Pnt2d(20,10));
harray->SetValue(4,gp_Pnt2d(30,0));
harray->SetValue(5,gp_Pnt2d(40,10));
harray->SetValue(6,gp_Pnt2d(50,0));
harray->SetValue(7,gp_Pnt2d(60,10));
harray->SetValue(8,gp_Pnt2d(70,0));
harray->SetValue(9,gp_Pnt2d(90,20));
harray->SetValue(10,gp_Pnt2d(110,0));
harray->SetValue(11,gp_Pnt2d(113,0));
harray->SetValue(12,gp_Pnt2d(127,5));
Geom2dAPI_Interpolate anInterpolation(harray,TRUE,1.0e-6);
anInterpolation.Perform();
Handle(Geom2d_BSplineCurve) curve = anInterpolation.Curve();
Geom2dAPI_InterCurveCurve IIC(curve,1.0e-10);
int nbpoints = IIC.NbPoints();
Geom2dAPI_InterCurveCurve only return one intersection point,but actual three intersction points. why?
Any help is appreciated!
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