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// File: StdPrs_ShadedPoleSurface.cxx
// Created: Tue Aug 1 08:38:50 1995
// Author: Modelistation
// <model@metrox>
#define G005 //ATS,GG 04/01/01 Use PrimitiveArray instead Sets of primitives
// for performance improvment
#include <StdPrs_ShadedPoleSurface.ixx>
#include <Graphic3d_Group.hxx>
#include <Graphic3d_Vertex.hxx>
#include <Graphic3d_Array2OfVertex.hxx>
#include <TColgp_Array2OfPnt.hxx>
#include <gp_Pnt.hxx>
#include <Prs3d_ShadingAspect.hxx>
#include <Graphic3d_AspectFillArea3d.hxx>
#include <Geom_BezierSurface.hxx>
#include <Geom_BSplineSurface.hxx>
#ifdef G005
#include <Graphic3d_ArrayOfQuadrangleStrips.hxx>
#endif
//=======================================================================
//function : Add
//purpose :
//=======================================================================
void StdPrs_ShadedPoleSurface::Add(
const Handle(Prs3d_Presentation)& aPresentation,
const Adaptor3d_Surface& aSurface,
const Handle (Prs3d_Drawer)& aDrawer)
{
if ( ! aDrawer->ShadingAspectGlobal() ) {
// If the surface is closed, the faces from back-side are not traced:
Handle(Graphic3d_AspectFillArea3d) Asp = aDrawer->ShadingAspect()->Aspect();
if(aSurface.IsUClosed() && aSurface.IsVClosed()) {
Asp->SuppressBackFace();
} else {
Asp->AllowBackFace();
}
Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(Asp);
}
Standard_Integer i,j,n = aSurface.NbUPoles(), m = aSurface.NbVPoles();
if (aSurface.GetType() == GeomAbs_BezierSurface) {
Handle(Geom_BezierSurface) surface = aSurface.Bezier();
#ifdef G005
if( Graphic3d_ArrayOfPrimitives::IsEnable() ) {
Handle(Graphic3d_ArrayOfQuadrangleStrips) parray =
new Graphic3d_ArrayOfQuadrangleStrips(n*m,n,
Standard_False,Standard_False,Standard_False,Standard_False);
for ( i=1; i<=n; i++) {
parray->AddBound(m);
for ( j=1; j<=m; j++) {
parray->AddVertex(surface->Pole(i,j));
}
}
Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(parray);
return;
}
#endif
TColgp_Array2OfPnt A(1,n,1,m);
surface->Poles(A);
Graphic3d_Array2OfVertex V(1,n,1,m);
Standard_Real x,y,z;
for ( i=1; i<=n; i++) {
for ( j=1; j<=m; j++) {
A(i,j).Coord(x,y,z);
V(i,j).SetCoord(x,y,z);
}
}
Prs3d_Root::CurrentGroup(aPresentation)->QuadrangleMesh(V);
}
else if (aSurface.GetType() == GeomAbs_BSplineSurface) {
Handle(Geom_BSplineSurface) surface = aSurface.BSpline();
#ifdef G005
if( Graphic3d_ArrayOfPrimitives::IsEnable() ) {
Handle(Graphic3d_ArrayOfQuadrangleStrips) parray =
new Graphic3d_ArrayOfQuadrangleStrips(n*m,n,
Standard_False,Standard_False,Standard_False,Standard_False);
for ( i=1; i<=n; i++) {
parray->AddBound(m);
for ( j=1; j<=m; j++) {
parray->AddVertex(surface->Pole(i,j));
}
}
Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(parray);
return;
}
#endif
TColgp_Array2OfPnt A(1,n,1,m);
surface->Poles(A);
Graphic3d_Array2OfVertex V(1,n,1,m);
Standard_Real x,y,z;
for ( i=1; i<=n; i++) {
for ( j=1; j<=m; j++) {
A(i,j).Coord(x,y,z);
V(i,j).SetCoord(x,y,z);
}
}
Prs3d_Root::CurrentGroup(aPresentation)->QuadrangleMesh(V);
}
}
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