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#include <DrawTrSurf_Surface.ixx>
#include <GeomTools_SurfaceSet.hxx>
#include <GeomAdaptor_HSurface.hxx>
#include <Adaptor3d_IsoCurve.hxx>
#include <Precision.hxx>
Standard_Real DrawTrSurf_SurfaceLimit = 400;
//=======================================================================
//function : DrawTrSurf_Surface
//purpose :
//=======================================================================
DrawTrSurf_Surface::DrawTrSurf_Surface (const Handle(Geom_Surface)& S)
: DrawTrSurf_Drawable (16, 0.01, 1)
{
surf = S;
boundsLook = Draw_jaune;
isosLook = Draw_bleu;
nbUIsos = 1;
nbVIsos = 1;
}
//=======================================================================
//function : DrawTrSurf_Surface
//purpose :
//=======================================================================
DrawTrSurf_Surface::DrawTrSurf_Surface
(const Handle(Geom_Surface)& S, const Standard_Integer Nu,
const Standard_Integer Nv,
const Draw_Color& BoundsColor, const Draw_Color& IsosColor,
const Standard_Integer Discret, const Standard_Real Deflection,
const Standard_Integer DrawMode)
: DrawTrSurf_Drawable (Discret, Deflection, DrawMode)
{
surf = S;
boundsLook = BoundsColor;
isosLook = IsosColor;
nbUIsos = Abs(Nu);
nbVIsos = Abs(Nv);
}
//=======================================================================
//function : DrawOn
//purpose :
//=======================================================================
void DrawTrSurf_Surface::DrawOn (Draw_Display& dis) const
{
DrawOn(dis,Standard_True);
}
//=======================================================================
//function : DrawOn
//purpose :
//=======================================================================
void DrawTrSurf_Surface::DrawOn (Draw_Display& dis,
const Standard_Boolean Iso) const
{
Standard_Real UFirst, ULast, VFirst, VLast;
surf->Bounds (UFirst, ULast, VFirst, VLast);
Standard_Boolean UfirstInf = Precision::IsNegativeInfinite(UFirst);
Standard_Boolean UlastInf = Precision::IsPositiveInfinite(ULast);
Standard_Boolean VfirstInf = Precision::IsNegativeInfinite(VFirst);
Standard_Boolean VlastInf = Precision::IsPositiveInfinite(VLast);
if (UfirstInf || UlastInf) {
gp_Pnt P1,P2;
Standard_Real v;
if (VfirstInf && VlastInf)
v = 0;
else if (VfirstInf)
v = VLast;
else if (VlastInf)
v = VFirst;
else
v = (VFirst + VLast) / 2;
Standard_Real delta = 1.;
if (UfirstInf && UlastInf) {
do {
delta *= 2;
UFirst = - delta;
ULast = delta;
surf->D0(UFirst,v,P1);
surf->D0(ULast,v,P2);
} while (P1.Distance(P2) < DrawTrSurf_SurfaceLimit);
}
else if (UfirstInf) {
surf->D0(ULast,v,P2);
do {
delta *= 2;
UFirst = ULast - delta;
surf->D0(UFirst,v,P1);
} while (P1.Distance(P2) < DrawTrSurf_SurfaceLimit);
}
else if (UlastInf) {
surf->D0(UFirst,v,P1);
do {
delta *= 2;
ULast = UFirst + delta;
surf->D0(ULast,v,P2);
} while (P1.Distance(P2) < DrawTrSurf_SurfaceLimit);
}
}
if (VfirstInf || VlastInf) {
gp_Pnt P1,P2;
Standard_Real u = (UFirst + ULast) /2 ;
Standard_Real delta = 1.;
if (VfirstInf && VlastInf) {
do {
delta *= 2;
VFirst = - delta;
VLast = delta;
surf->D0(u,VFirst,P1);
surf->D0(u,VLast,P2);
} while (P1.Distance(P2) < DrawTrSurf_SurfaceLimit);
}
else if (VfirstInf) {
surf->D0(u,VLast,P2);
do {
delta *= 2;
VFirst = VLast - delta;
surf->D0(u,VFirst,P1);
} while (P1.Distance(P2) < DrawTrSurf_SurfaceLimit);
}
else if (VlastInf) {
surf->D0(u,VFirst,P1);
do {
delta *= 2;
VLast = VFirst + delta;
surf->D0(u,VLast,P2);
} while (P1.Distance(P2) < DrawTrSurf_SurfaceLimit);
}
}
Handle(GeomAdaptor_HSurface) HS = new GeomAdaptor_HSurface();
HS->ChangeSurface().Load(surf,UFirst,ULast,VFirst,VLast);
Adaptor3d_IsoCurve C(HS);
if (Iso) {
dis.SetColor(isosLook);
Standard_Integer i, j;
Standard_Real Du = (ULast - UFirst) / (nbUIsos + 1);
Standard_Real U = UFirst;
for (i = 1; i <= nbUIsos; i++) {
U += Du;
DrawIsoCurveOn(C,GeomAbs_IsoU,U,VFirst,VLast,dis);
}
Standard_Real Dv = (VLast - VFirst) / (nbVIsos + 1);
Standard_Real V = VFirst;
for (j = 1; j <= nbVIsos; j++) {
V += Dv;
DrawIsoCurveOn(C,GeomAbs_IsoV,V,UFirst,ULast,dis);
}
}
// draw bounds
dis.SetColor(boundsLook);
if (!UfirstInf) DrawIsoCurveOn(C,GeomAbs_IsoU,UFirst,VFirst,VLast,dis);
if (!UlastInf) DrawIsoCurveOn(C,GeomAbs_IsoU,ULast ,VFirst,VLast,dis);
if (!VfirstInf) DrawIsoCurveOn(C,GeomAbs_IsoV,VFirst,UFirst,ULast,dis);
if (!VlastInf) DrawIsoCurveOn(C,GeomAbs_IsoV,VLast ,UFirst,ULast,dis);
// draw marker
DrawIsoCurveOn(C,GeomAbs_IsoU,
UFirst+(ULast-UFirst)/10.,
VFirst, VFirst + (VLast-VFirst)/10.,
dis);
}
//=======================================================================
//function : ShowIsos
//purpose :
//=======================================================================
void DrawTrSurf_Surface::ShowIsos ( const Standard_Integer Nu,
const Standard_Integer Nv)
{
nbUIsos = Abs(Nu);
nbVIsos = Abs(Nv);
}
//=======================================================================
//function : ClearIsos
//purpose :
//=======================================================================
void DrawTrSurf_Surface::ClearIsos ()
{
nbUIsos = 0;
nbVIsos = 0;
}
//=======================================================================
//function : Copy
//purpose :
//=======================================================================
Handle(Draw_Drawable3D) DrawTrSurf_Surface::Copy() const
{
Handle(DrawTrSurf_Surface) DS = new DrawTrSurf_Surface
(Handle(Geom_Surface)::DownCast(surf->Copy()),
nbUIsos,nbVIsos,boundsLook,isosLook,
GetDiscretisation(),GetDeflection(),GetDrawMode());
return DS;
}
//=======================================================================
//function : Dump
//purpose :
//=======================================================================
void DrawTrSurf_Surface::Dump(Standard_OStream& S)const
{
GeomTools_SurfaceSet::PrintSurface(surf,S);
}
//=======================================================================
//function : Whatis
//purpose :
//=======================================================================
void DrawTrSurf_Surface::Whatis(Draw_Interpretor& S)const
{
S << "a surface";
}
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