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// File: TopOpeBRep_VPointInterClassifier.cxx
// Created: Thu Nov 18 10:35:11 1993
// Author: Jean Yves LEBEY
// <jyl@phobox>
#include <TopOpeBRep_VPointInterClassifier.ixx>
#include <gp_Pnt2d.hxx>
#include <Precision.hxx>
#include <TopoDS.hxx>
#include <TopOpeBRepTool_ShapeTool.hxx>
#include <Standard_ProgramError.hxx>
#include <BRepAdaptor_Surface.hxx>
//modified by NIZHNY-MKK Fri Jun 16 15:04:09 2000.BEGIN
#include <Geom_Curve.hxx>
#include <Geom2d_Curve.hxx>
#include <BRep_Tool.hxx>
#include <GeomAPI_ProjectPointOnCurve.hxx>
#include <TopoDS_Vertex.hxx>
//modified by NIZHNY-MKK Fri Jun 16 15:04:09 2000.END
//modified by NIZHNY-MKK Mon Jun 19 11:47:48 2000.BEGIN
static TopAbs_State SlowClassifyOnBoundary(const gp_Pnt& thePointToClassify,
const gp_Pnt2d& thePoint2dToClassify,
BRepClass_FaceClassifier& theSlowClassifier,
const TopoDS_Face& theFace);
//modified by NIZHNY-MKK Mon Jun 19 11:47:51 2000.END
//=======================================================================
//function : TopOpeBRep_VPointInterClassifier
//purpose :
//=======================================================================
TopOpeBRep_VPointInterClassifier::TopOpeBRep_VPointInterClassifier() :
myState(TopAbs_UNKNOWN)
{
}
//=======================================================================
//function : VPointPosition
//purpose :
//=======================================================================
TopAbs_State TopOpeBRep_VPointInterClassifier::VPointPosition
(const TopoDS_Shape& F,
TopOpeBRep_VPointInter& VP,
const Standard_Integer FaceClassifyIndex,
TopOpeBRep_PointClassifier& PC,
const Standard_Boolean AssumeINON,
const Standard_Real Tol)
{
myState = TopAbs_UNKNOWN;
Standard_Real u,v;
switch (FaceClassifyIndex) {
case 1 : {
VP.ParametersOnS1(u,v);
if(VP.IsOnDomS1()) {
VP.State(TopAbs_ON,1);
const TopoDS_Edge& E = TopoDS::Edge(VP.ArcOnS1());
const Standard_Real pE = VP.ParameterOnArc1();
VP.EdgeON(E,pE,1);
myState = TopAbs_ON;
return myState;
}
break;
}
case 2 : {
VP.ParametersOnS2(u,v);
if(VP.IsOnDomS2()) {
VP.State(TopAbs_ON,2);
const TopoDS_Edge& E = TopoDS::Edge(VP.ArcOnS2());
const Standard_Real pE = VP.ParameterOnArc2();
VP.EdgeON(E,pE,2);
myState = TopAbs_ON;
return myState;
}
break;
}
default : Standard_ProgramError::Raise("VPointClassifier : wrong Index");
}
if (myState == TopAbs_ON) {
return myState;
}
TopoDS_Face FF = TopoDS::Face(F);
TopOpeBRepTool_ShapeTool::AdjustOnPeriodic(FF,u,v);
gp_Pnt2d p2d(u,v);
TopAbs_State statefast = PC.Classify(FF,p2d,Tol);
myState = statefast;
VP.State(myState,FaceClassifyIndex);
// AssumeINON = True <=> on considere que tout VP rendu par les
// intersections est sur une frontiere de la face FF (ON)ou dans la face FF (IN)
Standard_Integer VPSI = VP.ShapeIndex();
if (AssumeINON && FaceClassifyIndex == VPSI) {
mySlowFaceClassifier.Perform(FF,p2d,Tol);
myState = mySlowFaceClassifier.State();
if (myState == TopAbs_ON) {
//modified by NIZHNY-MKK Mon Jun 19 11:45:36 2000.BEGIN
myState = SlowClassifyOnBoundary(VP.Value(), p2d, mySlowFaceClassifier, FF);
if(myState == TopAbs_ON) {
//modified by NIZHNY-MKK Mon Jun 19 11:45:36 2000.END
VP.EdgeON(mySlowFaceClassifier.Edge().Edge(),
mySlowFaceClassifier.EdgeParameter(),
FaceClassifyIndex);
}
}
else if ( myState == TopAbs_OUT) {
myState = TopAbs_IN;
// ou biwn myState = TopAbs_OUT ce qui va entrainer VP.UnKeep()
// si on privilegie le classifieur / donnees d'intersection.
}
} // (AssumeINON && FaceClassifyIndex == VPSI)
else if (!AssumeINON) {
if (statefast == TopAbs_OUT || statefast == TopAbs_ON) {
mySlowFaceClassifier.Perform(FF,p2d,Tol);
myState = mySlowFaceClassifier.State();
if (myState == TopAbs_ON) {
//modified by NIZHNY-MKK Mon Jun 19 11:45:36 2000.BEGIN
myState = SlowClassifyOnBoundary(VP.Value(), p2d, mySlowFaceClassifier, FF);
if(myState == TopAbs_ON) {
//modified by NIZHNY-MKK Mon Jun 19 11:45:36 2000.END
VP.EdgeON(mySlowFaceClassifier.Edge().Edge(),
mySlowFaceClassifier.EdgeParameter(),
FaceClassifyIndex);
}
}
}
}
else if (FaceClassifyIndex != VPSI) {
// AssumeINON = True
//modified by NIZNHY-PKV Mon Feb 5 19:04:01 2001 f
if (statefast == TopAbs_ON || statefast == TopAbs_OUT) {
//if (statefast == TopAbs_ON) {
mySlowFaceClassifier.Perform(FF, p2d, Tol);
myState = mySlowFaceClassifier.State();
if (myState == TopAbs_ON || myState == TopAbs_OUT) {
//if (myState == TopAbs_ON) {
//modified by NIZNHY-PKV Mon Feb 5 19:04:49 2001 t
myState = SlowClassifyOnBoundary(VP.Value(), p2d, mySlowFaceClassifier, FF);
if(myState==TopAbs_ON) {
VP.EdgeON(mySlowFaceClassifier.Edge().Edge(),
mySlowFaceClassifier.EdgeParameter(),
FaceClassifyIndex);
}
}
}
}
VP.State(myState,FaceClassifyIndex);
return myState;
}
//=======================================================================
//function : Edge
//purpose :
//=======================================================================
const TopoDS_Shape& TopOpeBRep_VPointInterClassifier::Edge() const
{
if (myState == TopAbs_ON) {
const TopoDS_Shape& S = mySlowFaceClassifier.Edge().Edge();
return S;
}
else {
return myNullShape;
}
}
//=======================================================================
//function : EdgeParameter
//purpose :
//=======================================================================
Standard_Real TopOpeBRep_VPointInterClassifier::EdgeParameter() const
{
if (myState == TopAbs_ON) return mySlowFaceClassifier.EdgeParameter();
else return 0;
}
//modified by NIZHNY-MKK Mon Jun 19 11:47:23 2000.BEGIN
//=======================================================================
//static function : SlowClassifyOnBoundary
//purpose :
//=======================================================================
static TopAbs_State SlowClassifyOnBoundary(const gp_Pnt& thePointToClassify,
const gp_Pnt2d& thePoint2dToClassify,
BRepClass_FaceClassifier& theSlowClassifier,
const TopoDS_Face& theFace) {
Standard_Real aParameterOnEdge = theSlowClassifier.EdgeParameter();
const TopoDS_Edge& anEdge = theSlowClassifier.Edge().Edge();
Standard_Real parf, parl;
Handle(Geom_Curve) anEdgeCurve = BRep_Tool::Curve(anEdge, parf, parl);
if(!anEdgeCurve.IsNull()) {
Standard_Real minparameterdiff = parl - parf;
Standard_Real aDistanceToCompare = 0;
Standard_Boolean samewithvertex = Standard_False;
TopExp_Explorer anExp(anEdge, TopAbs_VERTEX);
for(;anExp.More() && !samewithvertex; anExp.Next()) {
TopoDS_Vertex aVertex = TopoDS::Vertex(anExp.Current());
Standard_Real aVertexTolerance = BRep_Tool::Tolerance(aVertex);
gp_Pnt anEdgeVertexPoint = BRep_Tool::Pnt(aVertex);
if(thePointToClassify.IsEqual(anEdgeVertexPoint, aVertexTolerance))
samewithvertex = Standard_True;
}
if(samewithvertex)
return TopAbs_ON;
GeomAPI_ProjectPointOnCurve aProjTool(thePointToClassify, anEdgeCurve);
for(Standard_Integer i=1; i<=aProjTool.NbPoints(); i++) {
Standard_Real curparamdiff = Abs(aProjTool.Parameter(i) - aParameterOnEdge);
if(curparamdiff < minparameterdiff) {
minparameterdiff = curparamdiff;
aDistanceToCompare = aProjTool.Distance(i);
}
}
Standard_Real anEdgeTolerance = BRep_Tool::Tolerance(anEdge);
if((aProjTool.NbPoints()==0) || (aDistanceToCompare >= anEdgeTolerance)) {
Handle(Geom2d_Curve) anEdgePCurve = BRep_Tool::CurveOnSurface(anEdge, theFace, parf, parl);
if(!anEdgePCurve.IsNull()) {
gp_Pnt2d aPoint2dOnEdge = anEdgePCurve->Value(aParameterOnEdge);
Standard_Real aTol2d = thePoint2dToClassify.Distance(aPoint2dOnEdge) / 3;
theSlowClassifier.Perform(theFace, thePoint2dToClassify, aTol2d);
if(theSlowClassifier.State() == TopAbs_IN)
return TopAbs_IN;
else
return TopAbs_OUT;
}
else {
return TopAbs_OUT;
}
}
} //end if(!anEdgeCurve.IsNull())
return TopAbs_ON;
}
//modified by NIZHNY-MKK Mon Jun 19 11:47:26 2000.END
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