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// File: BRepFill_SectionPlacement.cxx
// Created: Wed Feb 11 16:23:18 1998
// Author: Philippe MANGIN
// <pmn@sgi29>
#include <BRepFill_SectionPlacement.ixx>
#include <TopExp_Explorer.hxx>
#include <TopExp.hxx>
#include <TopAbs_ShapeEnum.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS.hxx>
#include <BRep_Tool.hxx>
#include <BRepAdaptor_HCurve.hxx>
#include <BRepAdaptor_HCompCurve.hxx>
#include <BRepExtrema_DistShapeShape.hxx>
#include <BRepExtrema_SupportType.hxx>
#include <Geom_Curve.hxx>
#include <Geom_CartesianPoint.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <Geom_Line.hxx>
#include <Geom_BSplineCurve.hxx>
#include <GeomConvert_CompCurveToBSplineCurve.hxx>
#include <GeomAdaptor_HCurve.hxx>
#include <GeomFill_SectionPlacement.hxx>
#include <GeomFill_LocationLaw.hxx>
#include <Standard_ConstructionError.hxx>
#include <Standard_NotImplemented.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColStd_Array1OfInteger.hxx>
#include <Precision.hxx>
#if DEB
static Standard_Boolean myDebug = Standard_False;
#endif
static Standard_Real SearchParam(const Handle(BRepFill_LocationLaw)& Law,
const Standard_Integer Ind,
const TopoDS_Vertex& TheV)
{
Standard_Real t;
TopoDS_Edge E;
E = Law->Edge(Ind);
t = BRep_Tool::Parameter(TheV, E);
if (E.Orientation() == TopAbs_REVERSED) {
Standard_Real f, l, Lf, Ll;
Handle(Geom_Curve) C;
C = BRep_Tool::Curve(E,f,l);
Lf = Law->Law(Ind)->GetCurve()->FirstParameter();
Ll = Law->Law(Ind)->GetCurve()->LastParameter();
t = Ll - (t-f)*(Ll-Lf)/(l-f);
}
return t;
}
BRepFill_SectionPlacement::
BRepFill_SectionPlacement(const Handle(BRepFill_LocationLaw)& Law,
const TopoDS_Shape& Section,
const Standard_Boolean WithContact,
const Standard_Boolean WithCorrection) :
myLaw(Law), mySection(Section)
{
TopoDS_Vertex VNull;
VNull.Nullify();
Perform(WithContact, WithCorrection, VNull);
}
BRepFill_SectionPlacement::
BRepFill_SectionPlacement(const Handle(BRepFill_LocationLaw)& Law,
const TopoDS_Shape& Section,
const TopoDS_Shape& Vertex,
const Standard_Boolean WithContact,
const Standard_Boolean WithCorrection) :
myLaw(Law), mySection(Section)
{
Perform(WithContact, WithCorrection, Vertex);
}
void BRepFill_SectionPlacement::Perform(const Standard_Boolean WithContact,
const Standard_Boolean WithCorrection,
const TopoDS_Shape& Vertex)
{
TopoDS_Vertex TheV;
TheV = TopoDS::Vertex(Vertex);
Standard_Integer ii;
Standard_Integer Ind1 = 0, Ind2 = 0;
Standard_Boolean Bof, isVertex = Standard_False;
Standard_Real First = 0.0, Last = 0.0;
TopExp_Explorer Ex;
TopoDS_Edge E;
TopoDS_Vertex V;
Handle(Geom_Curve) C;
Handle(Geom_TrimmedCurve) TC;
// modified by NIZHNY-OCC629 Thu Jul 24 14:11:45 2003
Standard_Boolean isFound = Standard_False;
Ex.Init(mySection, TopAbs_EDGE);
for(; Ex.More(); Ex.Next()) {
E = TopoDS::Edge(Ex.Current());
// avoid null, degenerated edges
if( E.IsNull() || BRep_Tool::Degenerated(E) ) continue;
C = BRep_Tool::Curve(E, First, Last);
if( C.IsNull() ) continue;
isFound = Standard_True;
break;
}
if( !isFound )
isVertex = Standard_True;
else
{
TC = new (Geom_TrimmedCurve)(C, First, Last);
Ex.Next();
if( Ex.More() ) {
Standard_Real tolrac, epsV, tol = Precision::Confusion();
GeomConvert_CompCurveToBSplineCurve Conv(TC);
for (; Ex.More(); Ex.Next()) {
E = TopoDS::Edge(Ex.Current());
// avoid null, degenerated edges
if( E.IsNull() || BRep_Tool::Degenerated(E) ) continue;
TopoDS_Vertex VFirst, VLast;
TopExp::Vertices(E,VFirst, VLast);
epsV = Max(BRep_Tool::Tolerance(VFirst), BRep_Tool::Tolerance(VLast));
C = BRep_Tool::Curve(E, First, Last);
if( C.IsNull() ) continue;
TC = new (Geom_TrimmedCurve)(C, First, Last);
tolrac = Min(tol,epsV);
Bof = Conv.Add(TC, tolrac);
if (!Bof) {
tolrac = Max(tol,epsV);
Bof = Conv.Add(TC, tolrac);
}
}
C = Conv.BSplineCurve();
}
else C = TC; // On garde l'unique courbe
}
// modified by NIZHNY-629 Fri Jul 25 11:10:27 2003 b
// // section ponctuelle
// Ex.Init(mySection, TopAbs_EDGE);
// Standard_Boolean isPonctual = Standard_False;
// if (Ex.More()) {
// E = TopoDS::Edge(Ex.Current());
// isPonctual = BRep_Tool::Degenerated(E);
// }
// Ex.Init(mySection, TopAbs_EDGE);
// if (Ex.More()&&!isPonctual) {
// E = TopoDS::Edge(Ex.Current());
// C = BRep_Tool::Curve(E, First, Last);
// TC = new (Geom_TrimmedCurve)(C, First, Last);
// Ex.Next();
// if (Ex.More()) { // On essai d'avoir un echantillon representatif
// Standard_Real tolrac, epsV, tol = Precision::Confusion();
// GeomConvert_CompCurveToBSplineCurve Conv(TC);
// for (; Ex.More(); Ex.Next()) {
// E = TopoDS::Edge(Ex.Current());
// TopoDS_Vertex VFirst, VLast;
// TopExp::Vertices(E,VFirst, VLast);
// epsV = Max(BRep_Tool::Tolerance(VFirst), BRep_Tool::Tolerance(VLast));
// C = BRep_Tool::Curve(E, First, Last);
// TC = new (Geom_TrimmedCurve)(C, First, Last);
// tolrac = Min(tol,epsV);
// Bof = Conv.Add(TC, tolrac);
// if (!Bof) {
// tolrac = Max(tol,epsV);
// Bof = Conv.Add(TC, tolrac);
// }
// }
// C = Conv.BSplineCurve();
// }
// else C = TC; // On garde l'unique courbe
// }
// else {
// // Localisation par distance Shape/Shape
// Standard_Real Tpos;
// BRepExtrema_DistShapeShape Ext(mySection, myLaw->Wire());
// if (! Ext.IsDone())
// Standard_ConstructionError::Raise("Distance Vertex/Spine");
// if (Ext.SupportTypeShape2(1) == BRepExtrema_IsOnEdge) {
// TopoDS_Shape sbis = Ext.SupportOnShape2(1);
// E = TopoDS::Edge(sbis);
// Ext.ParOnEdgeS2(1, Tpos);
// }
// else {
// TopoDS_Vertex Vf, Vl,V;
// TopoDS_Shape sbis = Ext.SupportOnShape2(1);
// V = TopoDS::Vertex(sbis);
// for (ii=1, Ind1=0 ; ii<=myLaw->NbLaw(); ii++) {
// E = myLaw->Edge(ii);
// TopExp::Vertices(E, Vf, Vl);
// if ((V.IsSame(Vf)) || (V.IsSame(Vl))) {
// if (Ind1 == 0) Ind1 = ii;
// else Ind2 = ii;
// }
// }
// // On invente une section
// gp_Dir D(0, 0, 1);
// gp_Pnt Origine, PV;
// Origine = BRep_Tool::Pnt(V);
// Standard_Real length;
// if (Ext.SupportTypeShape1(1) == BRepExtrema_IsVertex) {
// TopoDS_Shape aLocalShape = Ext.SupportOnShape1(1);
// PV = BRep_Tool::Pnt(TopoDS::Vertex(aLocalShape));
// // PV = BRep_Tool::Pnt(TopoDS::Vertex(Ext.SupportOnShape1(1)));
// }
// else {
// PV = BRep_Tool::Pnt(TopoDS::Vertex(mySection));
// }
// length = Origine.Distance(PV);
// if (length > Precision::Confusion()) {
// gp_Vec theVec(Origine, PV);
// D.SetXYZ(theVec.XYZ());
// }
// else length = 10*Precision::Confusion();
// Handle(Geom_Line) CL = new (Geom_Line) (Origine, D);
// TC = new (Geom_TrimmedCurve)(CL, 0., length);
// C = TC;
// isVertex = Standard_True;
// }
// }
// // Recherche du Vertex de positionnement
// if (!TheV.IsNull()) {
// Standard_Integer NbV = myLaw->NbLaw()+1;
// for (ii=1, Ind1=0; ii<=NbV && (!Ind1); ii++)
// if (TheV.IsSame(myLaw->Vertex(ii))) Ind1 = ii;
// if (Ind1 != 0) {
// Ind2 =0;
// isVertex = Standard_True;
// if (Ind1==1) {
// if (myLaw->IsClosed()) Ind2 = NbV-1;
// }
// else {
// Ind1--;
// if (Ind1 < NbV-1)
// Ind2 = Ind1+1;
// }
// }
// else {
// TheV.Nullify(); // On oublie cette option...
// }
// }
// modified by NIZHNY-629 Fri Jul 25 11:11:06 2003 e
// Construction
Handle(Geom_Geometry) theSection = C;
if (isVertex)
{
Ex.Init(mySection, TopAbs_VERTEX);
TopoDS_Vertex theVertex = TopoDS::Vertex(Ex.Current());
gp_Pnt thePoint = BRep_Tool::Pnt(theVertex);
theSection = new Geom_CartesianPoint(thePoint);
}
GeomFill_SectionPlacement Place(myLaw->Law(1), theSection);
// Dans le cas generale : Localisation via une concatenation de la spine
TColStd_Array1OfReal SuperKnot(1, myLaw->NbLaw()+1);
TColStd_Array1OfInteger Index(1, myLaw->NbLaw());
for (ii=1; ii<=myLaw->NbLaw(); ii++) {
SuperKnot(ii+1) = Index(ii) = ii;
}
SuperKnot(1) = 0;
Handle(BRepAdaptor_HCompCurve) adpPath =
new (BRepAdaptor_HCompCurve) (myLaw->Wire());
Place.Perform(adpPath, Precision::Confusion());
Standard_Real theParam = Place.ParameterOnPath(),
eps = Precision::PConfusion();
#if DEB
if (myDebug) {
gp_Pnt P_Path;
P_Path = adpPath->Value(theParam);
cout << "Point on Path" << P_Path.X() << ", "
<< P_Path.Y() << ", " << P_Path.Z() << ", " << endl;
}
#endif
for (ii=1, Bof=Standard_True; ii<=myLaw->NbLaw() && Bof; ii++) {
Bof = !((SuperKnot(ii)-eps<=theParam) &&
(SuperKnot(ii+1)+eps>= theParam));
if (!Bof) {
Ind1 = ii;
if ( (Abs(theParam-SuperKnot(ii))<eps) && (ii>1) ) Ind2 = ii-1;
else if ((Abs(theParam-SuperKnot(ii+1))<eps) &&
(ii<myLaw->NbLaw()) ) Ind2 = ii+1;
}
}
if (Bof) Standard_ConstructionError::Raise("Interval non trouve !!");
Ind1 = Index(Ind1);
if (Ind2) Ind2 = Index(Ind2);
// Positionnement sur l'edge (ou les 2 Edges) localisee(s)
Standard_Real Angle;
Place.SetLocation(myLaw->Law(Ind1));
if(TheV.IsNull())
Place.Perform(Precision::Confusion());
else {
Place.Perform(SearchParam(myLaw, Ind1, TheV),
Precision::Confusion());
}
myTrsf = Place.Transformation(WithContact, WithCorrection);
myIndex = Ind1;
myParam = Place.ParameterOnPath();
Angle = Place.Angle();
if (Ind2) {
Place.SetLocation(myLaw->Law(Ind2));
if (TheV.IsNull())
Place.Perform(Precision::Confusion());
else {
if (Ind1 == Ind2) TheV.Reverse();
Place.Perform(SearchParam(myLaw, Ind2,TheV),
Precision::Confusion());
}
if (Place.Angle() > Angle) {
myTrsf = Place.Transformation(WithContact, WithCorrection);
myIndex = Ind2;
myParam = Place.ParameterOnPath();
}
}
}
const gp_Trsf& BRepFill_SectionPlacement::Transformation() const
{
return myTrsf;
}
Standard_Real BRepFill_SectionPlacement::AbscissaOnPath()
{
return myLaw->Abscissa(myIndex, myParam);
}
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