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// File: ShapeUpgrade_ClosedFaceDivide.cxx
// Created: Thu Jul 22 16:11:23 1999
// Author: data exchange team
// <det@friendox>
#include <ShapeUpgrade_ClosedFaceDivide.ixx>
#include <Precision.hxx>
#include <ShapeExtend.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopoDS_Wire.hxx>
#include <ShapeExtend_WireData.hxx>
#include <TopoDS_Edge.hxx>
#include <ShapeAnalysis_Edge.hxx>
#include <Geom2d_Curve.hxx>
#include <ShapeAnalysis_Curve.hxx>
#include <Bnd_Box2d.hxx>
#include <TColStd_HSequenceOfReal.hxx>
#include <BRep_Tool.hxx>
#include <ShapeUpgrade_SplitSurface.hxx>
#include <ShapeExtend_CompositeSurface.hxx>
#include <ShapeFix_ComposeShell.hxx>
#include <TopExp_Explorer.hxx>
#include <ShapeAnalysis_Surface.hxx>
#include <ShapeAnalysis.hxx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <ShapeBuild_ReShape.hxx>
#include <ShapeAnalysis.hxx>
//=======================================================================
//function : ShapeUpgrade_ClosedFaceDivide
//purpose :
//=======================================================================
ShapeUpgrade_ClosedFaceDivide::ShapeUpgrade_ClosedFaceDivide():
ShapeUpgrade_FaceDivide()
{
myNbSplit = 1;
}
//=======================================================================
//function : ShapeUpgrade_ClosedFaceDivide
//purpose :
//=======================================================================
ShapeUpgrade_ClosedFaceDivide::ShapeUpgrade_ClosedFaceDivide(const TopoDS_Face& F):
ShapeUpgrade_FaceDivide(F)
{
myNbSplit = 1;
}
//=======================================================================
//function : SplitSurface
//purpose :
//=======================================================================
Standard_Boolean ShapeUpgrade_ClosedFaceDivide::SplitSurface()
{
Handle(ShapeUpgrade_SplitSurface) SplitSurf = GetSplitSurfaceTool();
if ( SplitSurf.IsNull() ) return Standard_False;
if ( myResult.IsNull() || myResult.ShapeType() != TopAbs_FACE ) {
myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
return Standard_False;
}
TopoDS_Face face = TopoDS::Face ( myResult );
Standard_Real Uf,Ul,Vf,Vl;
ShapeAnalysis::GetFaceUVBounds ( myFace, Uf, Ul, Vf, Vl );
// 01.10.99 pdn Porting on DEC
if( ::Precision::IsInfinite(Uf) || ::Precision::IsInfinite(Ul) ||
::Precision::IsInfinite(Vf) || ::Precision::IsInfinite(Vl) )
return Standard_False;
TopLoc_Location L;
Handle(Geom_Surface) surf;
surf = BRep_Tool::Surface ( face, L );
Standard_Boolean isUSplit = Standard_False;
Standard_Boolean doSplit = Standard_False;
Handle(TColStd_HSequenceOfReal) split = new TColStd_HSequenceOfReal;
for(TopoDS_Iterator iter(face); iter.More()&&!doSplit; iter.Next()) {
if(iter.Value().ShapeType() != TopAbs_WIRE)
continue;
TopoDS_Wire wire = TopoDS::Wire(iter.Value());
Handle(ShapeExtend_WireData) sewd = new ShapeExtend_WireData(wire);
for(Standard_Integer i = 1; i <= sewd->NbEdges()&&!doSplit; i++)
if(sewd->IsSeam(i)) {
doSplit = Standard_True;
TopoDS_Edge edge = sewd->Edge(i);
ShapeAnalysis_Edge sae;
Handle(Geom2d_Curve) c1, c2;
Standard_Real f1,f2,l1,l2;
if(!sae.PCurve(edge,face,c1,f1,l1,Standard_False))
continue;
//smh#8
TopoDS_Shape tmpE = edge.Reversed();
if(!sae.PCurve(TopoDS::Edge(tmpE),face,c2,f2,l2,Standard_False))
continue;
if(c2==c1) continue;
// splitting
ShapeAnalysis_Curve sac;
Bnd_Box2d B1, B2;
sac.FillBndBox ( c1, f1, l1, 20, Standard_True, B1 );
sac.FillBndBox ( c2, f2, l2, 20, Standard_True, B2 );
Standard_Real x1min,y1min,x1max,y1max;
Standard_Real x2min,y2min,x2max,y2max;
B1.Get(x1min,y1min,x1max,y1max);
B2.Get(x2min,y2min,x2max,y2max);
Standard_Real xf,xl,yf,yl;
if(x1min < x2min) {
xf = x1max;
xl = x2min;
} else {
xf = x2max;
xl = x1min;
}
if(y1min < y2min) {
yf = y1max;
yl = y2min;
} else {
yf = y2max;
yl = y1min;
}
Standard_Real dU = xl - xf;
Standard_Real dV = yl - yf;
if(dU > dV) {
Standard_Real step = dU/(myNbSplit+1);
Standard_Real val = xf+step;
for(Standard_Integer j = 1; j <= myNbSplit; j++, val+=step)
split->Append(val);
isUSplit = Standard_True;
}
else {
Standard_Real step = dV/(myNbSplit+1);
Standard_Real val = yf+step;
for(Standard_Integer j = 1; j <= myNbSplit; j++, val+=step)
split->Append(val);
isUSplit = Standard_False;
}
}
}
if(!doSplit) {
//pdn try to define geometric closure.
Handle(ShapeAnalysis_Surface) sas = new ShapeAnalysis_Surface( surf );
Standard_Boolean uclosed = sas->IsUClosed(Precision());
Standard_Boolean vclosed = sas->IsVClosed(Precision());
Standard_Real U1, U2, V1, V2;
if(uclosed) {
surf -> Bounds(U1, U2, V1, V2);
GeomAdaptor_Surface GAS ( surf );
Standard_Real toler = GAS.UResolution ( Precision() );
if((U2-U1) - (Ul-Uf) < toler ) {
Handle(Geom_RectangularTrimmedSurface) rts =
new Geom_RectangularTrimmedSurface(surf,U1,(U2+U1)/2,Standard_True);
Handle(ShapeAnalysis_Surface) sast = new ShapeAnalysis_Surface( rts );
if ( !sast->IsUClosed(Precision())) {
doSplit = Standard_True;
Standard_Real step = (Ul-Uf)/(myNbSplit+1);
Standard_Real val = Uf+step;
for(Standard_Integer i = 1; i <= myNbSplit; i++, val+=step)
split->Append(val);
isUSplit = Standard_True;
}
#ifdef DEB
else cout << "Warning: SU_ClosedFaceDivide: Thin face, not splitted" << endl;
#endif
}
}
if( vclosed && !doSplit ) {
surf -> Bounds(U1, U2, V1, V2);
GeomAdaptor_Surface GAS ( surf );
Standard_Real toler = GAS.VResolution ( Precision() );
if((V2-V1) - (Vl-Vf) < toler) {
Handle(Geom_RectangularTrimmedSurface) rts =
new Geom_RectangularTrimmedSurface(surf,V1,(V2+V1)/2,Standard_False);
Handle(ShapeAnalysis_Surface) sast = new ShapeAnalysis_Surface( rts );
if ( !sast->IsVClosed(Precision())) {
doSplit = Standard_True;
Standard_Real step = (Vl-Vf)/(myNbSplit+1);
Standard_Real val = Vf+step;
for(Standard_Integer i = 1; i <= myNbSplit; i++, val+=step)
split->Append(val);
isUSplit = Standard_False;
}
#ifdef DEB
else cout << "Warning: SU_ClosedFaceDivide: Thin face, not splitted" << endl;
#endif
}
}
}
if(!doSplit)
return Standard_False;
SplitSurf->Init ( surf, Uf, Ul, Vf, Vl );
if(isUSplit)
SplitSurf->SetUSplitValues(split);
else
SplitSurf->SetVSplitValues(split);
SplitSurf->Perform(mySegmentMode);
if ( ! SplitSurf->Status ( ShapeExtend_DONE ) ) return Standard_False;
Handle(ShapeExtend_CompositeSurface) Grid = SplitSurf->ResSurfaces();
ShapeFix_ComposeShell CompShell;
CompShell.Init( Grid, L, face, Precision() );
CompShell.SetMaxTolerance(MaxTolerance());
CompShell.SetContext(Context());
CompShell.Perform();
if ( CompShell.Status ( ShapeExtend_FAIL ) ||
! CompShell.Status ( ShapeExtend_DONE ) )
myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
TopoDS_Shape res = CompShell.Result();
myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
for(TopExp_Explorer exp(res, TopAbs_FACE); exp.More(); exp.Next()) {
//smh#8
TopoDS_Shape tempf = Context()->Apply(exp.Current());
TopoDS_Face f = TopoDS::Face(tempf);
myResult = f;
if(SplitSurface())
Context()->Replace(f,myResult);
}
myResult = Context()->Apply(res);
return Standard_True;
}
//=======================================================================
//function : SetFaceNumber
//purpose :
//=======================================================================
void ShapeUpgrade_ClosedFaceDivide::SetNbSplitPoints(const Standard_Integer num)
{
if(num > 0)
myNbSplit = num;
}
//=======================================================================
//function : GetNbSplitPoints
//purpose :
//=======================================================================
Standard_Integer ShapeUpgrade_ClosedFaceDivide::GetNbSplitPoints() const
{
return myNbSplit;
}
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