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#include <DrawTrSurf_BSplineCurve2d.ixx>
#include <Draw_MarkerShape.hxx>
#include <Geom2d_BSplineCurve.hxx>
#include <gp_Pnt.hxx>
#include <TColgp_Array1OfPnt2d.hxx>
#include <TColStd_Array1OfReal.hxx>
DrawTrSurf_BSplineCurve2d::DrawTrSurf_BSplineCurve2d (
const Handle(Geom2d_BSplineCurve)& C)
: DrawTrSurf_Curve2d (C, Draw_vert, 100) {
drawKnots = Standard_True;
knotsForm = Draw_Losange;
knotsLook = Draw_violet;
knotsDim = 5;
drawPoles = Standard_True;
polesLook = Draw_rouge;
}
DrawTrSurf_BSplineCurve2d::DrawTrSurf_BSplineCurve2d (
const Handle(Geom2d_BSplineCurve)& C, const Draw_Color& CurvColor,
const Draw_Color& PolesColor, const Draw_Color& KnotsColor,
const Draw_MarkerShape KnotsShape, const Standard_Integer KnotsSize,
const Standard_Boolean ShowPoles, const Standard_Boolean ShowKnots, const Standard_Integer Discret)
: DrawTrSurf_Curve2d (C, CurvColor, Discret) {
drawKnots = ShowKnots;
knotsForm = KnotsShape;
knotsLook = KnotsColor;
knotsDim = KnotsSize;
drawPoles = ShowPoles;
polesLook = PolesColor;
}
void DrawTrSurf_BSplineCurve2d::DrawOn (Draw_Display& dis) const
{
Handle(Geom2d_BSplineCurve) C = Handle(Geom2d_BSplineCurve)::DownCast(curv);
if (drawPoles) {
Standard_Integer NbPoles = C->NbPoles();
dis.SetColor(polesLook);
TColgp_Array1OfPnt2d CPoles (1, NbPoles);
C->Poles (CPoles);
dis.MoveTo(CPoles(1));
for (Standard_Integer i = 2; i <= NbPoles; i++) {
dis.DrawTo(CPoles(i));
}
if (C->IsPeriodic())
dis.DrawTo(CPoles(1));
}
DrawTrSurf_Curve2d::DrawOn(dis);
if (drawKnots) {
Standard_Integer NbKnots = C->NbKnots();
TColStd_Array1OfReal CKnots (1, NbKnots);
C->Knots (CKnots);
dis.SetColor(knotsLook);
for (Standard_Integer i = 1; i <= NbKnots; i++) {
gp_Pnt2d P = C->Value(CKnots(i));
dis.DrawMarker (P, knotsForm, knotsDim);
}
}
}
void DrawTrSurf_BSplineCurve2d::ShowPoles () { drawPoles = Standard_True; }
void DrawTrSurf_BSplineCurve2d::ShowKnots () { drawKnots = Standard_True; }
void DrawTrSurf_BSplineCurve2d::ClearPoles () { drawPoles = Standard_False; }
void DrawTrSurf_BSplineCurve2d::ClearKnots () { drawKnots = Standard_False; }
void DrawTrSurf_BSplineCurve2d::FindPole (
const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real XPrec,
Standard_Integer& Index) const {
Handle(Geom2d_BSplineCurve) bc = Handle(Geom2d_BSplineCurve)::DownCast(curv);
Standard_Real Prec = XPrec / D.Zoom();
gp_Pnt2d p1(X/D.Zoom(),Y/D.Zoom());
Index++;
Standard_Integer NbPoles = bc->NbPoles();
gp_Pnt P;
gp_Pnt2d P2d;
while (Index <= NbPoles) {
P2d = bc->Pole(Index);
P.SetCoord (P2d.X(), P2d.Y(), 0.0);
if (D.Project(P).Distance(p1) <= Prec)
return;
Index++;
}
Index = 0;
}
void DrawTrSurf_BSplineCurve2d::FindKnot (
const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real Prec,
Standard_Integer& Index) const {
Handle(Geom2d_BSplineCurve) bc = Handle(Geom2d_BSplineCurve)::DownCast(curv);
gp_Pnt2d P2d;
gp_Pnt P;
gp_Pnt2d p1(X,Y);
Index++;
Standard_Integer NbKnots = bc->NbKnots();
while (Index <= NbKnots) {
P2d = bc->Value(bc->Knot(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_BSplineCurve2d::Copy()const
{
Handle(DrawTrSurf_BSplineCurve2d) DC = new DrawTrSurf_BSplineCurve2d
(Handle(Geom2d_BSplineCurve)::DownCast(curv->Copy()),
look,polesLook,knotsLook,knotsForm,knotsDim,
drawPoles,drawKnots,
GetDiscretisation());
return DC;
}
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