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#include <DrawTrSurf_BezierCurve2d.ixx>
#include <Geom2d_BezierCurve.hxx>
#include <gp_Pnt.hxx>
#include <TColgp_Array1OfPnt2d.hxx>
#include <TColStd_Array1OfReal.hxx>
DrawTrSurf_BezierCurve2d::DrawTrSurf_BezierCurve2d (
const Handle(Geom2d_BezierCurve)& C) :
DrawTrSurf_Curve2d (C, Draw_vert, 50) {
drawPoles = Standard_True;
polesLook = Draw_rouge;
}
DrawTrSurf_BezierCurve2d::DrawTrSurf_BezierCurve2d (
const Handle(Geom2d_BezierCurve)& C, const Draw_Color& CurvColor,
const Draw_Color& PolesColor, const Standard_Boolean ShowPoles,
const Standard_Integer Discret) : DrawTrSurf_Curve2d (C, CurvColor, Discret) {
drawPoles = ShowPoles;
polesLook = PolesColor;
}
void DrawTrSurf_BezierCurve2d::DrawOn (Draw_Display& dis) const
{
Handle(Geom2d_BezierCurve) C = Handle(Geom2d_BezierCurve)::DownCast(curv);
if (drawPoles) {
dis.SetColor(polesLook);
TColgp_Array1OfPnt2d CPoles (1, C->NbPoles());
C->Poles (CPoles);
dis.MoveTo(CPoles(1));
for (Standard_Integer i = 2; i <= C->NbPoles(); i++) {
dis.DrawTo(CPoles(i));
}
}
DrawTrSurf_Curve2d::DrawOn(dis);
}
void DrawTrSurf_BezierCurve2d::ShowPoles ()
{
drawPoles = Standard_True;
}
void DrawTrSurf_BezierCurve2d::ClearPoles ()
{
drawPoles = Standard_False;
}
void DrawTrSurf_BezierCurve2d::FindPole (
const Standard_Real X,
const Standard_Real Y,
const Draw_Display& D,
const Standard_Real XPrec,
Standard_Integer& Index) const
{
Handle(Geom2d_BezierCurve) bz = Handle(Geom2d_BezierCurve)::DownCast(curv);
gp_Pnt2d p1(X/D.Zoom(),Y/D.Zoom());
Standard_Real Prec = XPrec / D.Zoom();
Index++;
Standard_Integer NbPoles = bz->NbPoles();
gp_Pnt P;
gp_Pnt2d P2d;
while (Index <= NbPoles) {
P2d = bz->Pole(Index);
P.SetCoord (P2d.X(), P2d.Y(), 0.0);
if (D.Project(P).Distance(p1) <= Prec)
return;
Index++;
}
Index = 0;
}
//=======================================================================
//function : Copy
//purpose :
//=======================================================================
Handle(Draw_Drawable3D) DrawTrSurf_BezierCurve2d::Copy()const
{
Handle(DrawTrSurf_BezierCurve2d) DC = new DrawTrSurf_BezierCurve2d
(Handle(Geom2d_BezierCurve)::DownCast(curv->Copy()),
look,polesLook,
drawPoles,
GetDiscretisation());
return DC;
}
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