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#include <DrawTrSurf_BezierCurve.ixx>
#include <Geom_BezierCurve.hxx>
#include <gp_Pnt2d.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <TColStd_Array1OfReal.hxx>
DrawTrSurf_BezierCurve::DrawTrSurf_BezierCurve (
const Handle(Geom_BezierCurve)& C)
: DrawTrSurf_Curve (C, Draw_vert, 16, 0.05, 1) {
drawPoles = Standard_True;
polesLook = Draw_rouge;
}
DrawTrSurf_BezierCurve::DrawTrSurf_BezierCurve (
const Handle(Geom_BezierCurve)& C, const Draw_Color& CurvColor,
const Draw_Color& PolesColor, const Standard_Boolean ShowPoles,
const Standard_Integer Discret,const Standard_Real Deflection,
const Standard_Integer DrawMode ) :
DrawTrSurf_Curve (C, CurvColor, Discret, Deflection, DrawMode) {
drawPoles = ShowPoles;
polesLook = PolesColor;
}
void DrawTrSurf_BezierCurve::DrawOn (Draw_Display& dis) const {
Handle(Geom_BezierCurve) C = Handle(Geom_BezierCurve)::DownCast(curv);
if (drawPoles) {
Standard_Integer NbPoles = C->NbPoles();
dis.SetColor(polesLook);
TColgp_Array1OfPnt CPoles (1, NbPoles);
C->Poles (CPoles);
dis.MoveTo(CPoles(1));
for (Standard_Integer i = 2; i <= NbPoles; i++) {
dis.DrawTo(CPoles(i));
}
}
DrawTrSurf_Curve::DrawOn(dis);
}
void DrawTrSurf_BezierCurve::ShowPoles () { drawPoles = Standard_True; }
void DrawTrSurf_BezierCurve::ClearPoles () { drawPoles = Standard_False; }
void DrawTrSurf_BezierCurve::FindPole (
const Standard_Real X, const Standard_Real Y, const Draw_Display& D,
const Standard_Real XPrec, Standard_Integer& Index) const {
Handle(Geom_BezierCurve) bz = Handle(Geom_BezierCurve)::DownCast(curv);
gp_Pnt2d p1(X/D.Zoom(),Y/D.Zoom());
Standard_Real Prec = XPrec / D.Zoom();
Index++;
Standard_Integer NbPoles = bz->NbPoles();
while (Index <= NbPoles) {
if (D.Project(bz->Pole(Index)).Distance(p1) <= Prec)
return;
Index++;
}
Index = 0;
}
//=======================================================================
//function : Copy
//purpose :
//=======================================================================
Handle(Draw_Drawable3D) DrawTrSurf_BezierCurve::Copy()const
{
Handle(DrawTrSurf_BezierCurve) DC = new DrawTrSurf_BezierCurve
(Handle(Geom_BezierCurve)::DownCast(curv->Copy()),
look,polesLook,
drawPoles,
GetDiscretisation(),GetDeflection(),GetDrawMode());
return DC;
}
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