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// File: HLRTopoBRep_FaceIsoLiner.cxx
// Created: Thu Jan 5 10:57:30 1995
// Author: Christophe MARION
// <cma@ecolox>
#include <HLRTopoBRep_FaceIsoLiner.ixx>
#include <TopAbs.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopTools_Array1OfShape.hxx>
#include <TColStd_Array1OfBoolean.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
//#include <BRepAdaptor_Curve2d.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRepTools.hxx>
#include <BRep_Tool.hxx>
#include <BRep_Builder.hxx>
#include <Geom2d_Curve.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <Geom2d_Line.hxx>
#include <Geom2dHatch_Hatcher.hxx>
#include <Geom2dHatch_Intersector.hxx>
#include <HatchGen_ErrorStatus.hxx>
#include <HatchGen_Domain.hxx>
#include <HatchGen_PointOnHatching.hxx>
#include <HatchGen_PointOnElement.hxx>
#include <Precision.hxx>
const Standard_Real IntersectorConfusion = 1.e-10;
const Standard_Real IntersectorTangency = 1.e-10;
const Standard_Real HatcherConfusion2d = 1.e-8;
const Standard_Real HatcherConfusion3d = 1.e-8;
const Standard_Real Infinite = 100.;
//=======================================================================
// Function : Perform
// Purpose : Builds isoparametric curves with a hatcher.
//=======================================================================
void HLRTopoBRep_FaceIsoLiner::Perform (const Standard_Integer FI,
const TopoDS_Face& F,
HLRTopoBRep_Data& DS,
const Standard_Integer nbIsos)
{
Standard_Real UMin, UMax, VMin, VMax, U1, U2;
Standard_Integer ne = 0;
//BRep_Builder Builder;
TopoDS_Edge Edge;
TopExp_Explorer ExpEdges;
TopoDS_Face TF = F;
TF.Orientation (TopAbs_FORWARD);
gp_Pnt2d P;
gp_Pnt P1, P2;
TopoDS_Vertex V1U, V2U, V1V, V2V;
Geom2dHatch_Intersector Intersector
(IntersectorConfusion,IntersectorTangency);
Geom2dHatch_Hatcher Hatcher
(Intersector,HatcherConfusion2d,HatcherConfusion3d,Standard_True);
BRepTools::UVBounds (TF, UMin, UMax, VMin, VMax);
Standard_Boolean InfiniteUMin = Precision::IsNegativeInfinite (UMin);
Standard_Boolean InfiniteUMax = Precision::IsPositiveInfinite (UMax);
Standard_Boolean InfiniteVMin = Precision::IsNegativeInfinite (VMin);
Standard_Boolean InfiniteVMax = Precision::IsPositiveInfinite (VMax);
if (InfiniteUMin && InfiniteUMax) {
UMin = - Infinite;
UMax = Infinite;
}
else if (InfiniteUMin)
UMin = UMax - Infinite;
else if (InfiniteUMax)
UMax = UMin + Infinite;
if (InfiniteVMin && InfiniteVMax) {
VMin = - Infinite;
VMax = Infinite;
}
else if (InfiniteVMin)
VMin = VMax - Infinite;
else if (InfiniteVMax)
VMax = VMin + Infinite;
for (ExpEdges.Init (TF, TopAbs_EDGE); // Edges of the face TF
ExpEdges.More();
ExpEdges.Next()) ne++;
if (DS.FaceHasIntL(TF)) { // OutLines built on face TF.
TopTools_ListIteratorOfListOfShape itE;
for(itE.Initialize(DS.FaceIntL(TF));
itE.More();
itE.Next())
ne++;
}
TopTools_Array1OfShape SH(1,ne);
TColStd_Array1OfBoolean IL(1,ne); // internal OutLine
for (ExpEdges.Init (TF, TopAbs_EDGE);
ExpEdges.More();
ExpEdges.Next()) {
Standard_Integer IndE;
const TopoDS_Edge& newE = TopoDS::Edge(ExpEdges.Current());
const Handle(Geom2d_Curve) PC =
BRep_Tool::CurveOnSurface (newE, TF, U1, U2);
if( Abs(PC->FirstParameter() - U1) <= Precision::PConfusion()
&& Abs(PC->LastParameter() - U2) <= Precision::PConfusion()) {
IndE = Hatcher.AddElement (PC, newE.Orientation());
}
else {
Handle (Geom2d_TrimmedCurve) TPC =
new Geom2d_TrimmedCurve (PC, U1, U2);
IndE = Hatcher.AddElement (TPC, newE.Orientation());
}
SH(IndE) = newE;
if (DS.IsOutLFaceEdge(TF,newE)) IL(IndE) = Standard_True;
else IL(IndE) = Standard_False;
}
if (DS.FaceHasIntL(TF)) { // get the internal OutLines built on face F.
TopTools_ListIteratorOfListOfShape itE;
for(itE.Initialize(DS.FaceIntL(TF));
itE.More();
itE.Next()) {
Standard_Integer IndE;
const TopoDS_Edge& newE = TopoDS::Edge(itE.Value());
const Handle(Geom2d_Curve) PC =
BRep_Tool::CurveOnSurface (newE, TF, U1, U2);
if( Abs(PC->FirstParameter() - U1) <= Precision::PConfusion()
&& Abs(PC->LastParameter() - U2) <= Precision::PConfusion()) {
IndE = Hatcher.AddElement (PC, TopAbs_INTERNAL);
}
else {
Handle (Geom2d_TrimmedCurve) TPC =
new Geom2d_TrimmedCurve (PC, U1, U2);
IndE = Hatcher.AddElement (TPC, TopAbs_INTERNAL);
}
SH(IndE) = newE;
IL(IndE) = Standard_True;
}
}
//-----------------------------------------------------------------------
// Creation des hachures.
//-----------------------------------------------------------------------
BRepAdaptor_Surface Surface (TF);
Standard_Real Tolerance = BRep_Tool::Tolerance (TF);
Standard_Integer IIso;
Standard_Real DeltaU = Abs (UMax - UMin);
Standard_Real DeltaV = Abs (VMax - VMin);
Standard_Real Confusion = Min (DeltaU, DeltaV) * HatcherConfusion3d;
Hatcher.Confusion3d (Confusion);
//-----------------------------------------------------------------------
// Courbes Iso U.
//-----------------------------------------------------------------------
Standard_Real StepU = DeltaU / (Standard_Real) nbIsos;
if (StepU > Confusion) {
Standard_Real UPrm = UMin + StepU / 2.;
gp_Dir2d Dir (0., 1.);
for (IIso = 1; IIso <= nbIsos; IIso++) {
gp_Pnt2d Ori (UPrm, 0.);
Handle (Geom2d_Line) IsoLine = new Geom2d_Line (Ori, Dir);
Standard_Integer IndH = Hatcher.AddHatching (IsoLine);
Hatcher.Trim (IndH);
if (Hatcher.TrimDone (IndH) && !Hatcher.TrimFailed (IndH))
Hatcher.ComputeDomains (IndH);
if (!Hatcher.IsDone (IndH)) {
cout << "HLRTopoBRep::MakeIsoLines : Face " << FI << endl;
cout << "U iso of parameter: " << UPrm;
switch (Hatcher.Status (IndH)) {
case HatchGen_NoProblem :
cout << " No Problem" << endl;
break;
case HatchGen_TrimFailure :
cout << " Trim Failure" << endl;
break;
case HatchGen_TransitionFailure :
cout << " Transition Failure" << endl;
break;
case HatchGen_IncoherentParity :
cout << " Incoherent Parity" << endl;
break;
case HatchGen_IncompatibleStates :
cout << " Incompatible States" << endl;
break;
}
Hatcher.RemHatching (IndH);
continue;
}
Standard_Integer NbDom = Hatcher.NbDomains (IndH);
if (NbDom > 0) {
for (Standard_Integer IDom = 1; IDom <= NbDom; IDom++) {
const HatchGen_Domain& Dom = Hatcher.Domain (IndH, IDom);
Standard_Real U1 = Dom.HasFirstPoint() ?
Dom.FirstPoint().Parameter() : VMin - Infinite;
Standard_Real U2 = Dom.HasSecondPoint() ?
Dom.SecondPoint().Parameter() : VMax + Infinite;
IsoLine->D0 (U1, P);
Surface.D0 (P.X(), P.Y(), P1);
IsoLine->D0 (U2, P);
Surface.D0 (P.X(), P.Y(), P2);
if (Dom.HasFirstPoint()) { // Iso U - Premier point
const HatchGen_PointOnHatching& PntH = Dom.FirstPoint();
for (Standard_Integer IPntE = 1;
IPntE <= PntH.NbPoints();
IPntE++) {
const HatchGen_PointOnElement& PntE = PntH.Point(IPntE);
V1U = HLRTopoBRep_FaceIsoLiner::MakeVertex
(TopoDS::Edge(SH(PntE.Index())),
P1,PntE.Parameter(),Tolerance,DS);
if (IL(PntE.Index())) DS.AddOutV(V1U);
}
}
if (Dom.HasSecondPoint()) { // Iso U - Deuxieme point
const HatchGen_PointOnHatching& PntH = Dom.SecondPoint();
for (Standard_Integer IPntE = 1;
IPntE <= PntH.NbPoints();
IPntE++) {
const HatchGen_PointOnElement& PntE = PntH.Point(IPntE);
V2U = HLRTopoBRep_FaceIsoLiner::MakeVertex
(TopoDS::Edge(SH(PntE.Index())),
P2,PntE.Parameter(),Tolerance,DS);
if (IL(PntE.Index())) DS.AddOutV(V2U);
}
}
if(!V1U.IsNull() && !V2U.IsNull())
HLRTopoBRep_FaceIsoLiner::MakeIsoLine
(F,IsoLine,V1U,V2U,U1,U2,Tolerance,DS);
}
}
Hatcher.RemHatching (IndH);
UPrm += StepU;
}
}
//-----------------------------------------------------------------------
// Courbes Iso V.
//-----------------------------------------------------------------------
Standard_Real StepV = DeltaV / (Standard_Real) nbIsos;
if (StepV > Confusion) {
Standard_Real VPrm = VMin + StepV / 2.;
gp_Dir2d Dir (1., 0.);
for (IIso = 1; IIso <= nbIsos; IIso++) {
gp_Pnt2d Ori (0., VPrm);
Handle (Geom2d_Line) IsoLine = new Geom2d_Line (Ori, Dir);
Standard_Integer IndH = Hatcher.AddHatching (IsoLine);
Hatcher.Trim (IndH);
if (Hatcher.TrimDone (IndH) && !Hatcher.TrimFailed (IndH))
Hatcher.ComputeDomains (IndH);
if (!Hatcher.IsDone (IndH)) {
cout << "HLRTopoBRep::MakeIsoLines : Face " << FI << endl;
cout << "V iso of parameter: " << VPrm;
switch (Hatcher.Status (IndH)) {
case HatchGen_NoProblem :
cout << " No Problem" << endl;
break;
case HatchGen_TrimFailure :
cout << " Trim Failure" << endl;
break;
case HatchGen_TransitionFailure :
cout << " Transition Failure" << endl;
break;
case HatchGen_IncoherentParity :
cout << " Incoherent Parity" << endl;
break;
case HatchGen_IncompatibleStates :
cout << " Incompatible States" << endl;
break;
}
Hatcher.RemHatching (IndH);
continue;
}
Standard_Integer NbDom = Hatcher.NbDomains (IndH);
if (NbDom > 0) {
for (Standard_Integer IDom = 1; IDom <= NbDom; IDom++) {
const HatchGen_Domain& Dom = Hatcher.Domain (IndH, IDom);
Standard_Real U1 = Dom.HasFirstPoint() ?
Dom.FirstPoint().Parameter() : VMin - Infinite;
Standard_Real U2 = Dom.HasSecondPoint() ?
Dom.SecondPoint().Parameter() : VMax + Infinite;
IsoLine->D0 (U1, P);
Surface.D0 (P.X(), P.Y(), P1);
IsoLine->D0 (U2, P);
Surface.D0 (P.X(), P.Y(), P2);
if (Dom.HasFirstPoint()) { // Iso V - Premier point
const HatchGen_PointOnHatching& PntH = Dom.FirstPoint();
for (Standard_Integer IPntE = 1;
IPntE <= PntH.NbPoints();
IPntE++) {
const HatchGen_PointOnElement& PntE = PntH.Point(IPntE);
V1V = HLRTopoBRep_FaceIsoLiner::MakeVertex
(TopoDS::Edge(SH(PntE.Index())),
P1,PntE.Parameter(),Tolerance,DS);
if (IL(PntE.Index())) DS.AddOutV(V1V);
}
}
if (Dom.HasSecondPoint()) { // Iso V - Deuxieme point
const HatchGen_PointOnHatching& PntH = Dom.SecondPoint();
for (Standard_Integer IPntE = 1;
IPntE <= PntH.NbPoints();
IPntE++) {
const HatchGen_PointOnElement& PntE = PntH.Point(IPntE);
V2V = HLRTopoBRep_FaceIsoLiner::MakeVertex
(TopoDS::Edge(SH(PntE.Index())),
P2,PntE.Parameter(),Tolerance,DS);
if (IL(PntE.Index())) DS.AddOutV(V2V);
}
}
if(!V1V.IsNull() && !V2V.IsNull())
HLRTopoBRep_FaceIsoLiner::MakeIsoLine
(F,IsoLine,V1V,V2V,U1,U2,Tolerance,DS);
}
}
Hatcher.RemHatching (IndH);
VPrm += StepV;
}
}
}
//=======================================================================
//function : MakeVertex
//purpose :
//=======================================================================
TopoDS_Vertex
HLRTopoBRep_FaceIsoLiner::MakeVertex (const TopoDS_Edge& E,
const gp_Pnt& P,
const Standard_Real Par,
const Standard_Real Tol,
HLRTopoBRep_Data& DS)
{
TopoDS_Vertex V, VF, VL;
BRep_Builder B;
TopExp::Vertices (E, VF, VL);
if (P.IsEqual(BRep_Tool::Pnt(VF),BRep_Tool::Tolerance(VF)))
return VF;
if (P.IsEqual(BRep_Tool::Pnt(VL),BRep_Tool::Tolerance(VL)))
return VL;
for (DS.InitVertex(E); DS.MoreVertex(); DS.NextVertex()) {
TopoDS_Vertex curV = DS.Vertex();
Standard_Real curP = DS.Parameter();
if (P.IsEqual(BRep_Tool::Pnt(curV),BRep_Tool::Tolerance(curV))) {
V = curV;
break;
}
else if (Par < curP) {
B.MakeVertex(V,P,Tol);
V.Orientation(TopAbs_INTERNAL);
DS.InsertBefore(V,Par);
break;
}
}
if (!DS.MoreVertex()) {
B.MakeVertex(V,P,Tol);
V.Orientation(TopAbs_INTERNAL);
DS.Append(V,Par);
}
return V;
}
//=======================================================================
//function : MakeIsoLine
//purpose :
//=======================================================================
void HLRTopoBRep_FaceIsoLiner::MakeIsoLine (const TopoDS_Face& F,
const Handle(Geom2d_Line)& Iso,
TopoDS_Vertex& V1,
TopoDS_Vertex& V2,
const Standard_Real U1,
const Standard_Real U2,
const Standard_Real Tol,
HLRTopoBRep_Data& DS)
{
BRep_Builder B;
TopoDS_Edge E;
E.Orientation (TopAbs_INTERNAL);
V1.Orientation (TopAbs_FORWARD);
V2.Orientation (TopAbs_REVERSED);
B.MakeEdge (E);
B.UpdateEdge (E, Iso, F, Tol);
B.Add (E, V1);
B.UpdateVertex (V1, U1, E, Tol);
B.Add (E, V2);
B.UpdateVertex (V2, U2, E, Tol);
DS.AddIsoL(F).Append(E);
}
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