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// File: TestTopOpeDraw_DrawableSUR.cxx
// Created: Wed Sep 11 10:53:24 1996
// Author: Jean Yves LEBEY
// <jyl@bistrox.paris1.matra-dtv.fr>
#include <TestTopOpeDraw_DrawableSUR.ixx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRepTools.hxx>
#include <gp_Vec.hxx>
#include <gp_Vec2d.hxx>
#include <gp_Dir2d.hxx>
#include <gp.hxx>
//=======================================================================
//function : TestTopOpeDraw_DrawableSUR
//purpose :
//=======================================================================
TestTopOpeDraw_DrawableSUR::TestTopOpeDraw_DrawableSUR
(const Handle(Geom_Surface)& S, const Draw_Color& IsoColor) :
DrawTrSurf_Surface(S,0, 0, Draw_cyan, IsoColor,16, 0.01, 1),
// nu,nv,boundscolor Disc,Defl, DMode)
myNormalColor(Draw_blanc)
{
myText = new Draw_Text3D(Pnt(),"",IsoColor);
}
//=======================================================================
//function : TestTopOpeDraw_DrawableSUR
//purpose :
//=======================================================================
TestTopOpeDraw_DrawableSUR::TestTopOpeDraw_DrawableSUR
(const Handle(Geom_Surface)& S, const Draw_Color& IsoColor,
const Standard_CString Text,const Draw_Color& TextColor) :
DrawTrSurf_Surface(S,0, 0, Draw_cyan, IsoColor,16, 0.01, 1),
// nu,nv,boundscolor Disc,Defl, DMode)
myNormalColor(Draw_blanc)
{
myText = new Draw_Text3D(Pnt(),Text,TextColor);
}
//=======================================================================
//function : TestTopOpeDraw_DrawableSUR
//purpose :
//=======================================================================
TestTopOpeDraw_DrawableSUR::TestTopOpeDraw_DrawableSUR
(const Handle(Geom_Surface)& S,
const Draw_Color& IsoColor,
const Draw_Color& BoundColor,
const Draw_Color& NormalColor,
const Standard_CString Text,const Draw_Color& TextColor,
const Standard_Integer Nu, const Standard_Integer Nv,
const Standard_Integer Disc, const Standard_Real Defl, const Standard_Integer DMode,
const Standard_Boolean DispOrigin) :
DrawTrSurf_Surface(S,Nu,Nv,IsoColor,BoundColor,Disc,Defl,DMode)
{
myText = new Draw_Text3D(Pnt(),Text,TextColor);
myNormalColor = NormalColor;
}
//=======================================================================
//function : Pnt2d
//purpose :
//=======================================================================
gp_Pnt2d TestTopOpeDraw_DrawableSUR::Pnt2d() const
{
const Handle(Geom_Surface)& GS = GetSurface();
Standard_Real u1,u2,v1,v2; GS->Bounds(u1,u2,v1,v2);
Standard_Real facpar = 0.20;
Standard_Real u = u1 + (u2-u1)*facpar;
Standard_Real v = v1 + (v2-v1)*facpar;
gp_Pnt2d P(u,v);
return P;
}
//=======================================================================
//function : Pnt
//purpose :
//=======================================================================
gp_Pnt TestTopOpeDraw_DrawableSUR::Pnt() const
{
const Handle(Geom_Surface)& GS = GetSurface();
gp_Pnt2d P2d = Pnt2d();
gp_Pnt P = GS->Value(P2d.X(),P2d.Y());
return P;
}
//=======================================================================
//function : DrawOn
//purpose :
//=======================================================================
void TestTopOpeDraw_DrawableSUR::DrawOn(Draw_Display& dis) const
{
DrawTrSurf_Surface::DrawOn(dis);
myText->DrawOn(dis);
DrawNormale(dis);
}
//=======================================================================
//function : NormalColor
//purpose :
//=======================================================================
void TestTopOpeDraw_DrawableSUR::NormalColor(const Draw_Color& NormalColor)
{
myNormalColor = NormalColor;
}
//=======================================================================
//function : DrawNormale
//purpose :
//=======================================================================
void TestTopOpeDraw_DrawableSUR::DrawNormale(Draw_Display& dis) const
{
dis.SetColor(myNormalColor);
// la normale
gp_Pnt2d P2d = Pnt2d(); Standard_Real u,v; P2d.Coord(u,v);
gp_Pnt P1,P2; gp_Vec V,V1,V2;
const Handle(Geom_Surface)& GS = GetSurface();
GS->D1(u,v,P1,V1,V2);
Standard_Real mag; V = V1.Crossed(V2); mag = V.Magnitude();
Standard_Real lvec = 1.;
Handle(Geom_RectangularTrimmedSurface) GRTS;
GRTS = Handle(Geom_RectangularTrimmedSurface)::DownCast(GS);
if (!GRTS.IsNull()) {
Standard_Real u1,u2,v1,v2; GRTS->Bounds(u1,u2,v1,v2);
gp_Pnt Pmin,Pmax; GRTS->D0(u1,v1,Pmin); GRTS->D0(u2,v2,Pmax);
lvec = Pmin.Distance(Pmax);
}
if (mag > 1.e-10) V.Multiply(lvec/mag);
else { V.SetCoord(lvec/2.,0,0); cout<<"Null normal"<<endl; }
P2 = P1; P2.Translate(V);
dis.Draw(P1,P2);
// la fleche de la normale
gp_Pnt2d p1,p2;
dis.Project(P1,p1);
dis.Project(P2,p2);
gp_Vec2d v2d(p1,p2);
if (v2d.Magnitude() > gp::Resolution()) {
Standard_Real L = 20 / dis.Zoom();
Standard_Real H = 10 / dis.Zoom();
gp_Dir2d d2d(v2d);
gp_Pnt2d pp;
pp.SetCoord(p2.X() - L*d2d.X() - H*d2d.Y(), p2.Y() - L*d2d.Y() + H*d2d.X());
dis.MoveTo(pp);
dis.DrawTo(p2);
pp.SetCoord(p2.X() - L*d2d.X() + H*d2d.Y(), p2.Y() - L*d2d.Y() - H*d2d.X());
dis.DrawTo(pp);
}
}
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