Usage of ShapeUpgrade_UnifySameDomain instead of BlockFix_UnionFaces and BlockFix_UnionEdges.

This commit is contained in:
jgv 2020-08-25 01:36:20 +03:00
parent 25a3dc9150
commit 4be43fc33e
8 changed files with 38 additions and 1989 deletions

View File

@ -27,8 +27,6 @@
class TopoDS_Shape;
class BlockFix_SphereSpaceModifier;
class BlockFix_UnionFaces;
class BlockFix_UnionEdges;
class BlockFix_BlockFixAPI;
class BlockFix_PeriodicSurfaceModifier;
class BlockFix_CheckTool;
@ -46,8 +44,6 @@ public:
private:
friend class BlockFix_SphereSpaceModifier;
friend class BlockFix_UnionFaces;
friend class BlockFix_UnionEdges;
friend class BlockFix_BlockFixAPI;
friend class BlockFix_PeriodicSurfaceModifier;
friend class BlockFix_CheckTool;

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@ -27,10 +27,9 @@
#include <BlockFix_BlockFixAPI.hxx>
#include <BlockFix.hxx>
#include <BlockFix_UnionFaces.hxx>
#include <BlockFix_UnionEdges.hxx>
#include <ShapeUpgrade_RemoveLocations.hxx>
#include <ShapeUpgrade_UnifySameDomain.hxx>
#include <Precision.hxx>
@ -67,10 +66,21 @@ void BlockFix_BlockFixAPI::Perform()
myShape = BlockFix::RefillProblemFaces(myShape);
// faces unification
BlockFix_UnionFaces aFaceUnifier;
aFaceUnifier.GetTolerance() = myTolerance;
aFaceUnifier.GetOptimumNbFaces() = myOptimumNbFaces;
TopoDS_Shape aResult = aFaceUnifier.Perform(myShape);
ShapeUpgrade_UnifySameDomain Unifier;
TopoDS_Shape aResult = myShape;
if (myOptimumNbFaces != -1)
{
//only faces
Standard_Boolean isUnifyEdges = Standard_False;
Standard_Boolean isUnifyFaces = Standard_True;
Standard_Boolean isConcatBSplines = Standard_True;
Unifier.Initialize(myShape, isUnifyEdges, isUnifyFaces, isConcatBSplines);
//Unifier.SetLinearTolerance(myTolerance);
Unifier.SetLinearTolerance(Precision::Confusion());
Unifier.SetAngularTolerance(Precision::Confusion());
Unifier.Build();
aResult = Unifier.Shape();
}
// avoid problem with degenerated edges appearance
// due to shape quality regress
@ -79,8 +89,13 @@ void BlockFix_BlockFixAPI::Perform()
aResult = RemLoc.GetResult();
// edges unification
BlockFix_UnionEdges anEdgeUnifier;
myShape = anEdgeUnifier.Perform(aResult,myTolerance);
Standard_Boolean isUnifyEdges = Standard_True;
Standard_Boolean isUnifyFaces = Standard_False; //only edges
Standard_Boolean isConcatBSplines = Standard_True;
Unifier.Initialize(aResult, isUnifyEdges, isUnifyFaces, isConcatBSplines);
Unifier.SetLinearTolerance(myTolerance);
Unifier.Build();
myShape = Unifier.Shape();
TopoDS_Shape aRes = BlockFix::FixRanges(myShape,myTolerance);
myShape = aRes;

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@ -1,862 +0,0 @@
// Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// File: BlockFix_UnionEdges.cxx
// Created: 07.12.04 15:27:30
// Author: Sergey KUUL
#include <BlockFix_UnionEdges.hxx>
#include <ShapeAnalysis_Edge.hxx>
#include <ShapeBuild_ReShape.hxx>
#include <ShapeFix_Face.hxx>
#include <ShapeFix_Shell.hxx>
#include <BRep_Builder.hxx>
#include <BRep_CurveRepresentation.hxx>
#include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
#include <BRep_TEdge.hxx>
#include <BRep_Tool.hxx>
#include <BRepLib.hxx>
#include <BRepLib_MakeEdge.hxx>
#include <BRepTools_WireExplorer.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_MapIteratorOfMapOfShape.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_SequenceOfShape.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Shell.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Shape.hxx>
#include <GC_MakeCircle.hxx>
#include <Geom_BezierCurve.hxx>
#include <Geom_BSplineCurve.hxx>
#include <Geom_Circle.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Line.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <GeomConvert.hxx>
#include <GeomConvert_CompCurveToBSplineCurve.hxx>
#include <Geom2dConvert.hxx>
#include <Geom2dConvert_CompCurveToBSplineCurve.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <Geom2d_BSplineCurve.hxx>
#include <TColGeom_SequenceOfSurface.hxx>
#include <TColGeom_Array1OfBSplineCurve.hxx>
#include <TColGeom_HArray1OfBSplineCurve.hxx>
#include <TColGeom2d_Array1OfBSplineCurve.hxx>
#include <TColGeom2d_HArray1OfBSplineCurve.hxx>
#include <TColGeom2d_SequenceOfBoundedCurve.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColStd_ListIteratorOfListOfInteger.hxx>
#include <TColStd_ListOfInteger.hxx>
#include <TColStd_MapOfInteger.hxx>
#include "utilities.h"
//=======================================================================
//function : IsToMerge
//purpose : This method return Standard_True if two edges have common
// vertex. This vertex is returned by output parameter. The
// difference with the method TopExp::CommonVertex is only in
// the case if there are two common vertices. In this case
// this method returns the last vertex of theEdge1, not the first
// one that TopExp::CommonVertex does.
//=======================================================================
static Standard_Boolean GetCommonVertex(const TopoDS_Edge &theEdge1,
const TopoDS_Edge &theEdge2,
TopoDS_Vertex &theCommon)
{
Standard_Boolean isFound = Standard_True;
ShapeAnalysis_Edge aSae;
TopoDS_Vertex aVF1 = aSae.FirstVertex(theEdge1);
TopoDS_Vertex aVL1 = aSae.LastVertex(theEdge1);
TopoDS_Vertex aVF2 = aSae.FirstVertex(theEdge2);
TopoDS_Vertex aVL2 = aSae.LastVertex(theEdge2);
if (aVL1.IsSame(aVF2) || aVL1.IsSame(aVL2)) {
theCommon = aVL1;
} else if (aVF1.IsSame(aVL2) || aVF1.IsSame(aVF2)) {
theCommon = aVF1;
} else {
theCommon.Nullify();
isFound = Standard_False;
}
return isFound;
}
//=======================================================================
//function : IsToMerge
//purpose : This method return Standard_True if two consequent edges can
// be merged. The edges can be merged if:
// 1. They belong to same faces.
// 2. They either both seam or both not seam on each face.
// 3. There are no another edges (e.g. seam) on each common face
// that are connected to the common vertex of two edges.
// 4. They are based on coincident lines, or:
// 5. They are based on coincident circles, or:
// 6. They are based on either Bezier of BSplines.
//=======================================================================
static Standard_Boolean IsToMerge
(const TopoDS_Edge &theEdge1,
const TopoDS_Edge &theEdge2,
const TopTools_IndexedDataMapOfShapeListOfShape &theMapEdgeFaces,
const Standard_Real theTolerance)
{
Standard_Boolean aResult = Standard_False;
Standard_Boolean isDegen1 = BRep_Tool::Degenerated(theEdge1);
Standard_Boolean isDegen2 = BRep_Tool::Degenerated(theEdge2);
if (isDegen1 && isDegen2) {
// Both of edges are degenerated.
aResult = Standard_True;
} else if (!isDegen1 && !isDegen2) {
// Both of edges are not degenerated.
// Check if they belong to the same faces.
Standard_Boolean isSame = Standard_False;
Standard_Boolean has1 = theMapEdgeFaces.Contains(theEdge1);
Standard_Boolean has2 = theMapEdgeFaces.Contains(theEdge2);
if (has1 && has2) {
const TopTools_ListOfShape &aLst1 = theMapEdgeFaces.FindFromKey(theEdge1);
const TopTools_ListOfShape &aLst2 = theMapEdgeFaces.FindFromKey(theEdge2);
if (aLst1.Extent() == aLst2.Extent()) {
TopTools_ListIteratorOfListOfShape anIter1(aLst1);
isSame = Standard_True;
for (; anIter1.More() && isSame; anIter1.Next()) {
TopoDS_Face aFace1 = TopoDS::Face(anIter1.Value());
TopTools_ListIteratorOfListOfShape anIter2(aLst2);
for (; anIter2.More(); anIter2.Next()) {
if (aFace1.IsSame(anIter2.Value())) {
// Same face is detected. Break the loop.
// Check if edges either both seam or both not seam on this face.
Standard_Boolean isSeam1 = BRep_Tool::IsClosed(theEdge1, aFace1);
Standard_Boolean isSeam2 = BRep_Tool::IsClosed(theEdge2, aFace1);
isSame = (isSeam1 && isSeam2) || (isSeam1 == isSeam2);
if (isSame) {
// Check if there are no other edges (e.g. seam) on this face
// that are connected to the common vertex.
TopoDS_Vertex aVCommon;
if (GetCommonVertex(theEdge1, theEdge2, aVCommon)) {
TopTools_IndexedDataMapOfShapeListOfShape aMapVE;
TopExp::MapShapesAndAncestors
(aFace1, TopAbs_VERTEX, TopAbs_EDGE, aMapVE);
if (aMapVE.Contains(aVCommon)) {
TopTools_ListIteratorOfListOfShape
anItE(aMapVE.FindFromKey(aVCommon));
for (; anItE.More(); anItE.Next()) {
const TopoDS_Shape &anEdge = anItE.Value();
if (!theEdge1.IsSame(anEdge) &&
!theEdge2.IsSame(anEdge)) {
// There is another edge that shares the common vertex.
// Nothing to merge.
isSame = Standard_False;
break;
}
}
} else {
// Common vertex doesn't belong to the face.
// Nothing to merge. NEVERREACHED.
isSame = Standard_False;
}
} else {
// No common vertex. Nothing to merge. NEVERREACHED.
isSame = Standard_False;
}
}
break;
}
}
if (isSame && !anIter2.More()) {
// No same face is detected. Break the loop.
isSame = Standard_False;
break;
}
}
}
} else {
isSame = (has1 == has2); // True if the both of has are negative.
}
if (isSame) {
// Check edges geometry.
Standard_Real aFP1;
Standard_Real aFP2;
Standard_Real aLP1;
Standard_Real aLP2;
Handle(Geom_Curve) aC3d1 = BRep_Tool::Curve(theEdge1, aFP1, aLP1);
Handle(Geom_Curve) aC3d2 = BRep_Tool::Curve(theEdge2, aFP2, aLP2);
if (aC3d1.IsNull() == Standard_False &&
aC3d2.IsNull() == Standard_False) {
// Get the basis curves.
while(aC3d1->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
Handle(Geom_TrimmedCurve) aTc =
Handle(Geom_TrimmedCurve)::DownCast(aC3d1);
aC3d1 = aTc->BasisCurve();
}
while(aC3d2->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
Handle(Geom_TrimmedCurve) aTc =
Handle(Geom_TrimmedCurve)::DownCast(aC3d2);
aC3d2 = aTc->BasisCurve();
}
if(aC3d1->IsKind(STANDARD_TYPE(Geom_Line)) &&
aC3d2->IsKind(STANDARD_TYPE(Geom_Line))) {
// Two curves are lines.
Handle(Geom_Line) aL1 = Handle(Geom_Line)::DownCast(aC3d1);
Handle(Geom_Line) aL2 = Handle(Geom_Line)::DownCast(aC3d2);
gp_Dir aDir1 = aL1->Position().Direction();
gp_Dir aDir2 = aL2->Position().Direction();
if(aDir1.IsParallel(aDir2, theTolerance)) {
// Two coincident lines.
aResult = Standard_True;
}
} else if(aC3d1->IsKind(STANDARD_TYPE(Geom_Circle)) &&
aC3d2->IsKind(STANDARD_TYPE(Geom_Circle))) {
// Two curves are circles.
Handle(Geom_Circle) aC1 = Handle(Geom_Circle)::DownCast(aC3d1);
Handle(Geom_Circle) aC2 = Handle(Geom_Circle)::DownCast(aC3d2);
gp_Pnt aP01 = aC1->Location();
gp_Pnt aP02 = aC2->Location();
if (aP01.Distance(aP02) <= Precision::Confusion()) {
// Two coincident circles.
aResult = Standard_True;
}
} else if (aC3d1->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) ||
aC3d1->IsKind(STANDARD_TYPE(Geom_BezierCurve))) {
if (aC3d2->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) ||
aC3d2->IsKind(STANDARD_TYPE(Geom_BezierCurve))) {
// Both of the curves are either bezier or BSplines.
aResult = Standard_True;
}
}
}
}
}
return aResult;
}
//=======================================================================
//function : BlockFix_UnionEdges()
//purpose : Constructor
//=======================================================================
BlockFix_UnionEdges::BlockFix_UnionEdges ( )
{
}
//=======================================================================
//function : GlueEdgesWithPCurves
//purpose : Glues the pcurves of the sequence of edges
// and glues their 3d curves
//=======================================================================
static TopoDS_Edge GlueEdgesWithPCurves(const TopTools_SequenceOfShape& aChain,
const TopoDS_Vertex& FirstVertex,
const TopoDS_Vertex& LastVertex)
{
Standard_Integer i, j;
TopoDS_Edge FirstEdge = TopoDS::Edge(aChain(1));
//TColGeom2d_SequenceOfCurve PCurveSeq;
TColGeom_SequenceOfSurface SurfSeq;
//TopTools_SequenceOfShape LocSeq;
BRep_ListIteratorOfListOfCurveRepresentation itr( (Handle(BRep_TEdge)::DownCast(FirstEdge.TShape()))->Curves() );
for (; itr.More(); itr.Next())
{
Handle(BRep_CurveRepresentation) CurveRep = itr.Value();
if (CurveRep->IsCurveOnSurface())
{
//PCurveSeq.Append(CurveRep->PCurve());
SurfSeq.Append(CurveRep->Surface());
/*
TopoDS_Shape aLocShape;
aLocShape.Location(CurveRep->Location());
LocSeq.Append(aLocShape);
*/
}
}
Standard_Real fpar, lpar;
BRep_Tool::Range(FirstEdge, fpar, lpar);
TopoDS_Edge PrevEdge = FirstEdge;
TopoDS_Vertex CV;
Standard_Real MaxTol = 0.;
TopoDS_Edge ResEdge;
BRep_Builder BB;
Standard_Integer nb_curve = aChain.Length(); //number of curves
TColGeom_Array1OfBSplineCurve tab_c3d(0,nb_curve-1); //array of the curves
TColStd_Array1OfReal tabtolvertex(0,nb_curve-1); //(0,nb_curve-2); //array of the tolerances
TopoDS_Vertex PrevVertex = FirstVertex;
for (i = 1; i <= nb_curve; i++)
{
TopoDS_Edge anEdge = TopoDS::Edge(aChain(i));
TopoDS_Vertex VF, VL;
TopExp::Vertices(anEdge, VF, VL);
Standard_Boolean ToReverse = (!VF.IsSame(PrevVertex));
Standard_Real Tol1 = BRep_Tool::Tolerance(VF);
Standard_Real Tol2 = BRep_Tool::Tolerance(VL);
if (Tol1 > MaxTol)
MaxTol = Tol1;
if (Tol2 > MaxTol)
MaxTol = Tol2;
if (i > 1)
{
GetCommonVertex(PrevEdge, anEdge, CV);
Standard_Real Tol = BRep_Tool::Tolerance(CV);
tabtolvertex(i-2) = Tol;
}
Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, fpar, lpar);
Handle(Geom_TrimmedCurve) aTrCurve = new Geom_TrimmedCurve(aCurve, fpar, lpar);
tab_c3d(i-1) = GeomConvert::CurveToBSplineCurve(aTrCurve);
GeomConvert::C0BSplineToC1BSplineCurve(tab_c3d(i-1), Precision::Confusion());
if (ToReverse)
tab_c3d(i-1)->Reverse();
PrevVertex = (ToReverse)? VF : VL;
PrevEdge = anEdge;
}
Handle(TColGeom_HArray1OfBSplineCurve) concatcurve; //array of the concatenated curves
Handle(TColStd_HArray1OfInteger) ArrayOfIndices; //array of the remining Vertex
Standard_Boolean ClosedFlag = Standard_False;
GeomConvert::ConcatC1(tab_c3d,
tabtolvertex,
ArrayOfIndices,
concatcurve,
ClosedFlag,
Precision::Confusion()); //C1 concatenation
if (concatcurve->Length() > 1)
{
GeomConvert_CompCurveToBSplineCurve Concat(concatcurve->Value(concatcurve->Lower()));
for (i = concatcurve->Lower()+1; i <= concatcurve->Upper(); i++)
Concat.Add( concatcurve->Value(i), MaxTol, Standard_True );
concatcurve->SetValue(concatcurve->Lower(), Concat.BSplineCurve());
}
Handle(Geom_BSplineCurve) ResCurve = concatcurve->Value(concatcurve->Lower());
TColGeom2d_SequenceOfBoundedCurve ResPCurves;
TopLoc_Location aLoc;
for (j = 1; j <= SurfSeq.Length(); j++)
{
TColGeom2d_Array1OfBSplineCurve tab_c2d(0,nb_curve-1); //array of the pcurves
PrevVertex = FirstVertex;
PrevEdge = FirstEdge;
//TopLoc_Location theLoc = LocSeq(j).Location();
for (i = 1; i <= nb_curve; i++)
{
TopoDS_Edge anEdge = TopoDS::Edge(aChain(i));
TopoDS_Vertex VF, VL;
TopExp::Vertices(anEdge, VF, VL);
Standard_Boolean ToReverse = (!VF.IsSame(PrevVertex));
/*
Handle(Geom2d_Curve) aPCurve =
BRep_Tool::CurveOnSurface(anEdge, SurfSeq(j), anEdge.Location()*theLoc, fpar, lpar);
*/
Handle(Geom2d_Curve) aPCurve =
BRep_Tool::CurveOnSurface(anEdge, SurfSeq(j), aLoc, fpar, lpar);
Handle(Geom2d_TrimmedCurve) aTrPCurve = new Geom2d_TrimmedCurve(aPCurve, fpar, lpar);
tab_c2d(i-1) = Geom2dConvert::CurveToBSplineCurve(aTrPCurve);
Geom2dConvert::C0BSplineToC1BSplineCurve(tab_c2d(i-1), Precision::Confusion());
if (ToReverse)
tab_c2d(i-1)->Reverse();
PrevVertex = (ToReverse)? VF : VL;
PrevEdge = anEdge;
}
Handle(TColGeom2d_HArray1OfBSplineCurve) concatc2d; //array of the concatenated curves
Handle(TColStd_HArray1OfInteger) ArrayOfInd2d; //array of the remining Vertex
Standard_Boolean ClosedFlag = Standard_False;
Geom2dConvert::ConcatC1(tab_c2d,
tabtolvertex,
ArrayOfInd2d,
concatc2d,
ClosedFlag,
Precision::Confusion()); //C1 concatenation
if (concatc2d->Length() > 1)
{
Geom2dConvert_CompCurveToBSplineCurve Concat2d(concatc2d->Value(concatc2d->Lower()));
for (i = concatc2d->Lower()+1; i <= concatc2d->Upper(); i++)
Concat2d.Add( concatc2d->Value(i), MaxTol, Standard_True );
concatc2d->SetValue(concatc2d->Lower(), Concat2d.BSplineCurve());
}
Handle(Geom2d_BSplineCurve) aResPCurve = concatc2d->Value(concatc2d->Lower());
ResPCurves.Append(aResPCurve);
}
ResEdge = BRepLib_MakeEdge(ResCurve,
FirstVertex, LastVertex,
ResCurve->FirstParameter(), ResCurve->LastParameter());
BB.SameRange(ResEdge, Standard_False);
BB.SameParameter(ResEdge, Standard_False);
for (j = 1; j <= ResPCurves.Length(); j++)
{
BB.UpdateEdge(ResEdge, ResPCurves(j), SurfSeq(j), aLoc, MaxTol);
BB.Range(ResEdge, SurfSeq(j), aLoc, ResPCurves(j)->FirstParameter(), ResPCurves(j)->LastParameter());
}
BRepLib::SameParameter(ResEdge, MaxTol, Standard_True);
return ResEdge;
}
//=======================================================================
//function : MergeEdges
//purpose : auxiliary
//=======================================================================
static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
const Standard_Real Tol,
TopoDS_Edge& anEdge)
{
// make chain for union
BRep_Builder B;
ShapeAnalysis_Edge sae;
TopoDS_Edge FirstE = TopoDS::Edge(SeqEdges.Value(1));
TopoDS_Edge LastE = FirstE;
TopoDS_Vertex VF = sae.FirstVertex(FirstE);
TopoDS_Vertex VL = sae.LastVertex(LastE);
TopTools_SequenceOfShape aChain;
aChain.Append(FirstE);
TColStd_MapOfInteger IndUsedEdges;
IndUsedEdges.Add(1);
Standard_Integer j;
for(j=2; j<=SeqEdges.Length(); j++) {
for(Standard_Integer k=2; k<=SeqEdges.Length(); k++) {
if(IndUsedEdges.Contains(k)) continue;
TopoDS_Edge edge = TopoDS::Edge(SeqEdges.Value(k));
TopoDS_Vertex VF2 = sae.FirstVertex(edge);
TopoDS_Vertex VL2 = sae.LastVertex(edge);
if(sae.FirstVertex(edge).IsSame(VL)) {
aChain.Append(edge);
LastE = edge;
VL = sae.LastVertex(LastE);
IndUsedEdges.Add(k);
}
else if(sae.LastVertex(edge).IsSame(VF)) {
aChain.Prepend(edge);
FirstE = edge;
VF = sae.FirstVertex(FirstE);
IndUsedEdges.Add(k);
}
}
}
if(aChain.Length()<SeqEdges.Length()) {
MESSAGE ("can not create correct chain...");
return Standard_False;
}
// union edges in chain
// first step: union lines and circles
TopLoc_Location Loc;
Standard_Real fp1,lp1,fp2,lp2;
for(j=1; j<aChain.Length(); j++) {
TopoDS_Edge edge1 = TopoDS::Edge(aChain.Value(j));
Handle(Geom_Curve) c3d1 = BRep_Tool::Curve(edge1,Loc,fp1,lp1);
if(c3d1.IsNull()) break;
while(c3d1->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
Handle(Geom_TrimmedCurve) tc =
Handle(Geom_TrimmedCurve)::DownCast(c3d1);
c3d1 = tc->BasisCurve();
}
TopoDS_Edge edge2 = TopoDS::Edge(aChain.Value(j+1));
Handle(Geom_Curve) c3d2 = BRep_Tool::Curve(edge2,Loc,fp2,lp2);
if(c3d2.IsNull()) break;
while(c3d2->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
Handle(Geom_TrimmedCurve) tc =
Handle(Geom_TrimmedCurve)::DownCast(c3d2);
c3d2 = tc->BasisCurve();
}
if( c3d1->IsKind(STANDARD_TYPE(Geom_Line)) && c3d2->IsKind(STANDARD_TYPE(Geom_Line)) ) {
// union lines
Handle(Geom_Line) L1 = Handle(Geom_Line)::DownCast(c3d1);
Handle(Geom_Line) L2 = Handle(Geom_Line)::DownCast(c3d2);
gp_Dir Dir1 = L1->Position().Direction();
gp_Dir Dir2 = L2->Position().Direction();
//if(!Dir1.IsEqual(Dir2,Precision::Angular())) {
//if(!Dir1.IsParallel(Dir2,Precision::Angular())) {
if(!Dir1.IsParallel(Dir2,Tol)) {
continue;
}
// can union lines => create new edge
TopoDS_Vertex V1 = sae.FirstVertex(edge1);
gp_Pnt PV1 = BRep_Tool::Pnt(V1);
TopoDS_Vertex V2 = sae.LastVertex(edge2);
gp_Pnt PV2 = BRep_Tool::Pnt(V2);
gp_Vec Vec(PV1,PV2);
Handle(Geom_Line) L = new Geom_Line(gp_Ax1(PV1,Vec));
Standard_Real dist = PV1.Distance(PV2);
Handle(Geom_TrimmedCurve) tc = new Geom_TrimmedCurve(L,0.0,dist);
TopoDS_Edge E;
B.MakeEdge (E,tc,Precision::Confusion());
B.Add (E,V1); B.Add (E,V2);
B.UpdateVertex(V1, 0., E, 0.);
B.UpdateVertex(V2, dist, E, 0.);
aChain.Remove(j);
aChain.SetValue(j,E);
j--;
}
if( c3d1->IsKind(STANDARD_TYPE(Geom_Circle)) && c3d2->IsKind(STANDARD_TYPE(Geom_Circle)) ) {
// union circles
Handle(Geom_Circle) C1 = Handle(Geom_Circle)::DownCast(c3d1);
Handle(Geom_Circle) C2 = Handle(Geom_Circle)::DownCast(c3d2);
gp_Pnt P01 = C1->Location();
gp_Pnt P02 = C2->Location();
if (P01.Distance(P02) > Precision::Confusion()) continue;
// can union circles => create new edge
TopoDS_Vertex V1 = sae.FirstVertex(edge1);
gp_Pnt PV1 = BRep_Tool::Pnt(V1);
TopoDS_Vertex V2 = sae.LastVertex(edge2);
gp_Pnt PV2 = BRep_Tool::Pnt(V2);
TopoDS_Vertex VM = sae.LastVertex(edge1);
gp_Pnt PVM = BRep_Tool::Pnt(VM);
GC_MakeCircle MC (PV1,PVM,PV2);
Handle(Geom_Circle) C;
TopoDS_Edge E;
if (MC.IsDone()) {
C = MC.Value();
}
if (C.IsNull()) {
// jfa for Mantis issue 0020228
if (PV1.Distance(PV2) > Precision::Confusion()) continue;
// closed chain. Make a closed circular edge starting from V1.
gp_Ax1 anAxis = C1->Axis();
if (edge1.Orientation() == TopAbs_REVERSED) {
anAxis.Reverse();
}
const gp_Pnt &aP0 = anAxis.Location();
gp_Dir aDX(PV1.XYZ().Subtracted(aP0.XYZ()));
gp_Ax2 aNewAxis(aP0, anAxis.Direction(), aDX);
C = new Geom_Circle(aNewAxis, C1->Radius());
B.MakeEdge (E,C,Precision::Confusion());
B.Add(E,V1);
B.Add(E,V2);
B.UpdateVertex(V1, 0., E, 0.);
B.UpdateVertex(V2, 2.*M_PI, E, 0.);
}
else {
gp_Pnt P0 = C->Location();
gp_Dir D1(gp_Vec(P0,PV1));
gp_Dir D2(gp_Vec(P0,PV2));
Standard_Real fpar = C->XAxis().Direction().Angle(D1);
if(fabs(fpar)>Precision::Confusion()) {
// check orientation
gp_Dir ND = C->XAxis().Direction().Crossed(D1);
if(ND.IsOpposite(C->Axis().Direction(),Precision::Confusion())) {
fpar = -fpar;
}
}
Standard_Real lpar = C->XAxis().Direction().Angle(D2);
if(fabs(lpar)>Precision::Confusion()) {
// check orientation
gp_Dir ND = C->XAxis().Direction().Crossed(D2);
if(ND.IsOpposite(C->Axis().Direction(),Precision::Confusion())) {
lpar = -lpar;
}
}
if (lpar < fpar) lpar += 2*M_PI;
Handle(Geom_TrimmedCurve) tc = new Geom_TrimmedCurve(C,fpar,lpar);
B.MakeEdge (E,tc,Precision::Confusion());
B.Add(E,V1);
B.Add(E,V2);
B.UpdateVertex(V1, fpar, E, 0.);
B.UpdateVertex(V2, lpar, E, 0.);
}
aChain.Remove(j);
aChain.SetValue(j,E);
j--;
}
}
if (j < aChain.Length()) {
MESSAGE ("null curve3d in edge...");
return Standard_False;
}
if (aChain.Length() > 1) {
// second step: union edges with various curves
// skl for bug 0020052 from Mantis: perform such unions
// only if curves are bspline or bezier
bool NeedUnion = true;
for(j=1; j<=aChain.Length(); j++) {
TopoDS_Edge edge = TopoDS::Edge(aChain.Value(j));
Handle(Geom_Curve) c3d = BRep_Tool::Curve(edge,Loc,fp1,lp1);
if(c3d.IsNull()) continue;
while(c3d->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
Handle(Geom_TrimmedCurve) tc =
Handle(Geom_TrimmedCurve)::DownCast(c3d);
c3d = tc->BasisCurve();
}
if( ( c3d->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) ||
c3d->IsKind(STANDARD_TYPE(Geom_BezierCurve)) ) ) continue;
NeedUnion = false;
break;
}
if(NeedUnion) {
MESSAGE ("can not make analytical union => make approximation");
TopoDS_Edge E = GlueEdgesWithPCurves(aChain, VF, VL);
aChain.SetValue(1,E);
}
else {
MESSAGE ("can not make approximation for such types of curves");
return Standard_False;
}
}
anEdge = TopoDS::Edge(aChain.Value(1));
return Standard_True;
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& theShape,
const Standard_Real theTol)
{
// Fill Map of edges as keys and list of faces as items.
TopTools_IndexedDataMapOfShapeListOfShape aMapEdgeFaces;
Standard_Boolean isModified = Standard_False;
TopExp::MapShapesAndAncestors
(theShape, TopAbs_EDGE, TopAbs_FACE, aMapEdgeFaces);
// processing each face
Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape;
TopTools_MapOfShape aProcessed;
TopTools_MapOfShape aModifiedFaces;
TopExp_Explorer anExpF(theShape, TopAbs_FACE);
for (; anExpF.More(); anExpF.Next()) {
// Processing of each wire of the face
TopoDS_Face aFace = TopoDS::Face(anExpF.Current());
if (!aProcessed.Add(aFace)) {
continue;
}
TopExp_Explorer anExpW(aFace, TopAbs_WIRE);
for (; anExpW.More(); anExpW.Next()) {
// Get the ordered list of edges in the wire.
TopoDS_Wire aWire = TopoDS::Wire(anExpW.Current());
BRepTools_WireExplorer aWExp(aWire, aFace);
TopTools_ListOfShape aChainEdges;
Standard_Integer aNbEdges = 0;
for (; aWExp.More(); aWExp.Next(), aNbEdges++) {
aChainEdges.Append(aWExp.Current());
}
if (aNbEdges < 2) {
// Nothing to merge.
continue;
}
// Fill the list of flags that neighbour edges can be merged.
TColStd_ListOfInteger aChainCanMerged;
TopoDS_Edge anEdge1 = TopoDS::Edge(aChainEdges.Last());
TopoDS_Edge anEdge2;
Standard_Boolean isToMerge;
TopTools_ListIteratorOfListOfShape anIter(aChainEdges);
Standard_Boolean isFirstMerge = Standard_False;
Standard_Boolean isFirst = Standard_True;
Standard_Boolean isReorder = Standard_False;
// The first element is the flag between last and first edges.
for (; anIter.More(); anIter.Next()) {
anEdge2 = TopoDS::Edge(anIter.Value());
if (aProcessed.Contains(anEdge1) || aProcessed.Contains(anEdge2)) {
// No need to merge already processed edges.
isToMerge = Standard_False;
} else {
isToMerge = IsToMerge(anEdge1, anEdge2, aMapEdgeFaces, theTol);
}
aChainCanMerged.Append(isToMerge);
anEdge1 = anEdge2;
if (isFirst) {
isFirstMerge = isToMerge;
isFirst = Standard_False;
} else if (isFirstMerge && !isToMerge) {
isReorder = Standard_True;
}
}
// Fill the map of processed shape by the edges.
for (anIter.Initialize(aChainEdges); anIter.More(); anIter.Next()) {
aProcessed.Add(anIter.Value());
}
// Reorder edges in the chain.
if (isReorder) {
// Find the first edge that can't be merged.
while (aChainCanMerged.First()) {
TopoDS_Shape aTmpShape = aChainEdges.First();
isToMerge = aChainCanMerged.First();
aChainCanMerged.RemoveFirst();
aChainCanMerged.Append(isToMerge);
aChainEdges.RemoveFirst();
aChainEdges.Append(aTmpShape);
}
}
// Merge parts of chain to be merged.
TColStd_ListIteratorOfListOfInteger aFlagIter(aChainCanMerged);
anIter.Initialize(aChainEdges);
while (anIter.More()) {
TopTools_SequenceOfShape aSeqEdges;
aSeqEdges.Append(anIter.Value());
aFlagIter.Next();
anIter.Next();
for (; anIter.More(); anIter.Next(), aFlagIter.Next()) {
if (aFlagIter.Value()) {
// Continue the chain.
aSeqEdges.Append(anIter.Value());
} else {
// Stop the chain.
break;
}
}
const Standard_Integer aNbEdges = aSeqEdges.Length();
if (aNbEdges > 1) {
// There are several edges to be merged.
TopoDS_Edge aMergedEdge;
if (MergeEdges(aSeqEdges, theTol, aMergedEdge)) {
isModified = Standard_True;
// now we have only one edge - aMergedEdge.
// we have to replace old ListEdges with this new edge
const TopoDS_Shape &anEdge = aSeqEdges.Value(1);
aContext->Replace(anEdge, aMergedEdge);
for (Standard_Integer j = 2; j <= aNbEdges; j++) {
aContext->Remove(aSeqEdges(j));
}
// Fix affected faces.
if (aMapEdgeFaces.Contains(anEdge)) {
const TopTools_ListOfShape &aList =
aMapEdgeFaces.FindFromKey(anEdge);
TopTools_ListIteratorOfListOfShape anIter(aList);
for (; anIter.More(); anIter.Next()) {
aModifiedFaces.Add(anIter.Value());
}
}
}
}
}
}
}
if (isModified) {
// Fix modified faces.
TopTools_MapIteratorOfMapOfShape aModifIt(aModifiedFaces);
for (; aModifIt.More(); aModifIt.Next()) {
TopoDS_Face aModifiedFace =
TopoDS::Face(aContext->Apply(aModifIt.Key()));
Handle(ShapeFix_Face) aSff = new ShapeFix_Face(aModifiedFace);
aSff->SetContext(aContext);
aSff->SetPrecision(theTol);
aSff->SetMinTolerance(theTol);
aSff->SetMaxTolerance(Max(1., theTol*1000.));
aSff->Perform();
aContext->Replace(aModifiedFace, aSff->Face());
}
// Check if the result shape contains shells.
// If yes, fix the faces orientation in the shell.
TopoDS_Shape aModifShape = aContext->Apply(theShape);
TopExp_Explorer anExpSh(aModifShape, TopAbs_SHELL);
for (; anExpSh.More(); anExpSh.Next()) {
TopoDS_Shell aShell = TopoDS::Shell(anExpSh.Current());
Handle(ShapeFix_Shell) aSfsh = new ShapeFix_Shell;
aSfsh->FixFaceOrientation(aShell);
aContext->Replace(aShell, aSfsh->Shell());
}
}
const TopoDS_Shape aResult = aContext->Apply(theShape);
return aResult;
}

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@ -1,48 +0,0 @@
// Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
#ifndef _BlockFix_UnionEdges_HeaderFile
#define _BlockFix_UnionEdges_HeaderFile
#include <Standard_Real.hxx>
#include <ShapeBuild_ReShape.hxx>
#include <Standard.hxx>
#include <Standard_Macro.hxx>
class TopoDS_Shape;
class BlockFix_UnionEdges {
public:
Standard_EXPORT BlockFix_UnionEdges();
Standard_EXPORT TopoDS_Shape Perform (const TopoDS_Shape& Shape,const Standard_Real Tol);
private:
Standard_Real myTolerance;
Handle(ShapeBuild_ReShape) myContext;
};
#endif

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@ -1,990 +0,0 @@
// Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// File: BlockFix_UnionFaces.cxx
// Created: Tue Dec 7 17:15:42 2004
// Author: Pavel DURANDIN
#include <BlockFix_UnionFaces.hxx>
#include <Basics_OCCTVersion.hxx>
#include <ShapeAnalysis_WireOrder.hxx>
#include <ShapeAnalysis_Edge.hxx>
#include <ShapeBuild_Edge.hxx>
#include <ShapeBuild_ReShape.hxx>
#include <ShapeExtend_WireData.hxx>
#include <ShapeExtend_CompositeSurface.hxx>
#include <ShapeFix_Face.hxx>
#include <ShapeFix_ComposeShell.hxx>
#include <ShapeFix_SequenceOfWireSegment.hxx>
#include <ShapeFix_WireSegment.hxx>
#include <ShapeFix_Wire.hxx>
#include <ShapeFix_Edge.hxx>
#include <IntPatch_ImpImpIntersection.hxx>
#include <BRep_Tool.hxx>
#include <BRep_Builder.hxx>
#include <BRepTools.hxx>
#include <BRepTopAdaptor_TopolTool.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_SequenceOfShape.hxx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopTools_MapIteratorOfMapOfShape.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Solid.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Shell.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopoDS_Shape.hxx>
#include <TColGeom_HArray2OfSurface.hxx>
#include <GeomAdaptor_HSurface.hxx>
#include <GeomLib_IsPlanarSurface.hxx>
#include <Geom_Surface.hxx>
#include <Geom_Plane.hxx>
#include <Geom_OffsetSurface.hxx>
#include <Geom_SphericalSurface.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
#include <Geom_SurfaceOfLinearExtrusion.hxx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRepAdaptor_HSurface.hxx>
#include <LocalAnalysis_SurfaceContinuity.hxx>
#include <GeomConvert_ApproxSurface.hxx>
#include <Bnd_Box.hxx>
#include <BRepBndLib.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Line.hxx>
#include <Geom_Circle.hxx>
#include <Geom2d_Line.hxx>
#include <gp_XY.hxx>
#include <gp_Pnt2d.hxx>
#include <Standard_Failure.hxx>
#include <Standard_ErrorHandler.hxx> // CAREFUL ! position of this file is critic : see Lucien PIGNOLONI / OCC
//=======================================================================
//function : BlockFix_UnionFaces
//purpose :
//=======================================================================
BlockFix_UnionFaces::BlockFix_UnionFaces()
: myTolerance(Precision::Confusion()),
myOptimumNbFaces(6)
{
}
//=======================================================================
//function : GetTolerance
//purpose :
//=======================================================================
Standard_Real& BlockFix_UnionFaces::GetTolerance()
{
return myTolerance;
}
//=======================================================================
//function : GetOptimumNbFaces
//purpose :
//=======================================================================
Standard_Integer& BlockFix_UnionFaces::GetOptimumNbFaces()
{
return myOptimumNbFaces;
}
//=======================================================================
//function : AddOrdinaryEdges
//purpose : auxiliary
// adds edges from the shape to the sequence
// seams and equal edges are dropped
// Returns true if one of original edges dropped
//=======================================================================
static Standard_Boolean AddOrdinaryEdges(TopTools_SequenceOfShape& edges,
const TopoDS_Shape aShape,
Standard_Integer& anIndex)
{
//map of edges
TopTools_MapOfShape aNewEdges;
TopExp_Explorer exp(aShape,TopAbs_EDGE);
//add edges without seams
for(; exp.More(); exp.Next()) {
TopoDS_Shape edge = exp.Current();
if(aNewEdges.Contains(edge))
aNewEdges.Remove(edge);
else
aNewEdges.Add(edge);
}
Standard_Boolean isDropped = Standard_False;
//merge edges and drop seams
for(Standard_Integer i = 1; i <= edges.Length(); i++) {
TopoDS_Shape current = edges(i);
if(aNewEdges.Contains(current)) {
aNewEdges.Remove(current);
edges.Remove(i);
i--;
if(!isDropped) {
isDropped = Standard_True;
anIndex = i;
}
}
}
//add edges to the sequence
for(exp.ReInit(); exp.More(); exp.Next()) {
const TopoDS_Shape &anEdge = exp.Current();
if (aNewEdges.Contains(anEdge)) {
edges.Append(anEdge);
}
}
return isDropped;
}
//=======================================================================
//function : ClearRts
//purpose : auxiliary
//=======================================================================
static Handle(Geom_Surface) ClearRts(const Handle(Geom_Surface)& aSurface)
{
if(aSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
Handle(Geom_RectangularTrimmedSurface) rts =
Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
return rts->BasisSurface();
}
return aSurface;
}
//=======================================================================
//function : IsFacesOfSameSolids
//purpose : auxiliary
//=======================================================================
static Standard_Boolean IsFacesOfSameSolids
(const TopoDS_Face &theFace1,
const TopoDS_Face &theFace2,
const TopTools_IndexedDataMapOfShapeListOfShape &theMapFaceSolids)
{
Standard_Boolean isSame = Standard_False;
if (theMapFaceSolids.Contains(theFace1) &&
theMapFaceSolids.Contains(theFace2)) {
const TopTools_ListOfShape& aList1 = theMapFaceSolids.FindFromKey(theFace1);
const TopTools_ListOfShape& aList2 = theMapFaceSolids.FindFromKey(theFace2);
if (aList1.Extent() == aList2.Extent()) {
TopTools_ListIteratorOfListOfShape anIter1(aList1);
isSame = Standard_True;
for (; anIter1.More(); anIter1.Next()) {
const TopoDS_Shape &aSolid1 = anIter1.Value();
TopTools_ListIteratorOfListOfShape anIter2(aList2);
for (; anIter2.More(); anIter2.Next()) {
if (aSolid1.IsSame(anIter2.Value())) {
// Same solid is detected. Break the loop
break;
}
}
if (!anIter2.More()) {
// No same solid is detected. Break the loop.
isSame = Standard_False;
break;
}
}
}
}
return isSame;
}
//=======================================================================
//function : DefineMaxTolerance
//purpose : calculates maximum possible tolerance on edges of shape
//=======================================================================
static Standard_Real DefineMaxTolerance(const TopoDS_Shape& theShape)
{
Standard_Real aTol = Precision::Confusion();
Standard_Real MinSize = RealLast();
TopExp_Explorer Explo(theShape, TopAbs_EDGE);
for (; Explo.More(); Explo.Next())
{
const TopoDS_Edge& anEdge = TopoDS::Edge(Explo.Current());
Bnd_Box aBox;
BRepBndLib::Add(anEdge, aBox);
Standard_Real Xmin, Ymin, Zmin, Xmax, Ymax, Zmax;
aBox.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
Standard_Real MaxSize = Max(Xmax - Xmin, Max(Ymax - Ymin, Zmax - Zmin));
if (MaxSize < MinSize)
MinSize = MaxSize;
}
if (!Precision::IsInfinite(MinSize))
aTol = 0.1 * MinSize;
return aTol;
}
//=======================================================================
//function : IsTangentFaces
//purpose : decides: is edge on closed surface tangent or not
//=======================================================================
static Standard_Boolean IsTangentFaces(const TopoDS_Edge& theEdge,
const TopoDS_Face& theFace)
{
Standard_Real TolC0 = Max(0.001, 1.5*BRep_Tool::Tolerance(theEdge));
Standard_Real aFirst;
Standard_Real aLast;
// Obtaining of pcurves of edge on two faces.
const Handle(Geom2d_Curve) aC2d1 = BRep_Tool::CurveOnSurface
(theEdge, theFace, aFirst, aLast);
TopoDS_Edge ReversedEdge = theEdge;
ReversedEdge.Reverse();
const Handle(Geom2d_Curve) aC2d2 = BRep_Tool::CurveOnSurface
(ReversedEdge, theFace, aFirst, aLast);
if (aC2d1.IsNull() || aC2d2.IsNull())
return Standard_False;
// Obtaining of two surfaces from adjacent faces.
Handle(Geom_Surface) aSurf = BRep_Tool::Surface(theFace);
if (aSurf.IsNull())
return Standard_False;
// Computation of the number of samples on the edge.
BRepAdaptor_Surface aBAS(theFace);
Handle(BRepAdaptor_HSurface) aBAHS = new BRepAdaptor_HSurface(aBAS);
Handle(BRepTopAdaptor_TopolTool) aTool = new BRepTopAdaptor_TopolTool(aBAHS);
Standard_Integer aNbSamples = aTool->NbSamples();
const Standard_Integer aNbSamplesMax = 23;
aNbSamples = Min(aNbSamplesMax, aNbSamples);
const Standard_Real aTolAngle = M_PI/18;
// Computation of the continuity.
Standard_Real aPar;
Standard_Real aDelta = (aLast - aFirst)/(aNbSamples - 1);
Standard_Integer i, nbNotDone = 0;
for (i = 1, aPar = aFirst; i <= aNbSamples; i++, aPar += aDelta) {
if (i == aNbSamples) aPar = aLast;
LocalAnalysis_SurfaceContinuity aCont(aC2d1, aC2d2, aPar,
aSurf, aSurf, GeomAbs_G1,
0.001, TolC0, aTolAngle, 0.1, 0.1);
if (!aCont.IsDone())
{
nbNotDone++;
continue;
}
if (!aCont.IsG1())
return Standard_False;
}
if (nbNotDone == aNbSamples)
return Standard_False;
return Standard_True;
}
//=======================================================================
//function : HasSeamEdge
//purpose : Detects if a face contains a seam edge
//=======================================================================
static Standard_Boolean HasSeamEdge(const TopoDS_Face& theFace)
{
TopExp_Explorer Explo(theFace, TopAbs_EDGE);
for (; Explo.More(); Explo.Next())
{
const TopoDS_Edge& anEdge = TopoDS::Edge(Explo.Current());
if (BRepTools::IsReallyClosed(anEdge, theFace))
return Standard_True;
}
return Standard_False;
}
//=======================================================================
//function : IsEdgeValidToMerge
//purpose : Edge is valid if it is not seam or if it is a seam and the face
// has another seam edge.
//=======================================================================
static Standard_Boolean IsEdgeValidToMerge(const TopoDS_Edge& theEdge,
const TopoDS_Face& theFace,
const Handle(Geom_Surface)& theSurface,
Standard_Boolean& theIsEdgeOnSeam,
Standard_Boolean& theToMakeUPeriodic,
Standard_Boolean& theToMakeVPeriodic)
{
Standard_Boolean isValid = Standard_True;
theIsEdgeOnSeam |= BRep_Tool::IsClosed(theEdge, theFace);
if (BRepTools::IsReallyClosed(theEdge, theFace)) {
// Mantis issue 0023451, now code corresponds to the comment to this method
isValid = Standard_False;
// This is a seam edge. Check if there are another seam edges on the face.
TopExp_Explorer anExp(theFace, TopAbs_EDGE);
for (; anExp.More(); anExp.Next()) {
const TopoDS_Shape &aShEdge = anExp.Current();
// Skip same edge.
if (theEdge.IsSame(aShEdge)) {
continue;
}
// Check if this edge is a seam.
TopoDS_Edge anEdge = TopoDS::Edge(aShEdge);
if (BRep_Tool::IsClosed(anEdge, theFace)) {
// Mantis issue 0023451, now code corresponds to the comment to this method
//isValid = Standard_False;
isValid = Standard_True;
break;
}
}
}
else if (theIsEdgeOnSeam)
{
Standard_Real fpar, lpar;
Handle(Geom2d_Curve) aPCurve = BRep_Tool::CurveOnSurface(theEdge, theFace, fpar, lpar);
gp_Pnt2d P2d1 = aPCurve->Value(fpar);
gp_Pnt2d P2d2 = aPCurve->Value(lpar);
if (!theSurface->IsUPeriodic() &&
theSurface->IsUClosed() &&
Abs(P2d1.X() - P2d2.X()) < Abs(P2d1.Y() - P2d2.Y()))
{
if (IsTangentFaces(theEdge, theFace))
theToMakeUPeriodic = Standard_True;
else
isValid = Standard_False;
}
if (!theSurface->IsVPeriodic() &&
theSurface->IsVClosed() &&
Abs(P2d1.Y() - P2d2.Y()) < Abs(P2d1.X() - P2d2.X()))
{
if (IsTangentFaces(theEdge, theFace))
theToMakeVPeriodic = Standard_True;
else
isValid = Standard_False;
}
}
return isValid;
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
TopoDS_Shape BlockFix_UnionFaces::Perform(const TopoDS_Shape& Shape)
{
// Fill Map of faces as keys and list of solids or shells as items.
TopTools_IndexedDataMapOfShapeListOfShape aMapFaceSoOrSh;
TopAbs_ShapeEnum aType = Shape.ShapeType();
if (aType != TopAbs_SHELL) {
aType = TopAbs_SOLID;
}
TopExp::MapShapesAndAncestors
(Shape, TopAbs_FACE, aType, aMapFaceSoOrSh);
// processing each solid
Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape;
TopTools_MapOfShape aProcessed;
TopExp_Explorer exps;
for (exps.Init(Shape, aType); exps.More(); exps.Next()) {
TopoDS_Shape aSoOrSh = exps.Current();
// creating map of edge faces
TopTools_IndexedDataMapOfShapeListOfShape aMapEdgeFaces;
TopExp::MapShapesAndAncestors(aSoOrSh, TopAbs_EDGE, TopAbs_FACE, aMapEdgeFaces);
Standard_Integer NbModif = 0;
Standard_Boolean hasFailed = Standard_False;
Standard_Real tol = Min(Max(Precision::Confusion(), myTolerance/10.), 0.1);
// count faces
int nbf = 0;
TopExp_Explorer exp;
TopTools_MapOfShape mapF;
for (exp.Init(aSoOrSh, TopAbs_FACE); exp.More(); exp.Next()) {
if (mapF.Add(exp.Current()))
nbf++;
}
bool doUnion = ((myOptimumNbFaces == 0) ||
((myOptimumNbFaces > 0) && (nbf > myOptimumNbFaces)));
// processing each face
mapF.Clear();
for (exp.Init(aSoOrSh, TopAbs_FACE); exp.More() && doUnion; exp.Next()) {
TopoDS_Face aFace = TopoDS::Face(exp.Current().Oriented(TopAbs_FORWARD));
if (aProcessed.Contains(aFace)) {
continue;
}
Standard_Integer dummy;
TopTools_SequenceOfShape edges;
AddOrdinaryEdges(edges,aFace,dummy);
TopTools_SequenceOfShape faces;
faces.Append(aFace);
//surface and location to construct result
TopLoc_Location aBaseLocation;
Handle(Geom_Surface) aBaseSurface = BRep_Tool::Surface(aFace,aBaseLocation);
aBaseSurface = ClearRts(aBaseSurface);
aBaseSurface = Handle(Geom_Surface)::DownCast(aBaseSurface->Copy());
Standard_Boolean ToMakeUPeriodic = Standard_False, ToMakeVPeriodic = Standard_False;
// find adjacent faces to union
Standard_Integer i;
for (i = 1; i <= edges.Length(); i++) {
TopoDS_Edge edge = TopoDS::Edge(edges(i));
Standard_Boolean IsEdgeOnSeam = Standard_False;
if (BRep_Tool::Degenerated(edge) ||
!IsEdgeValidToMerge(edge, aFace, aBaseSurface,
IsEdgeOnSeam, ToMakeUPeriodic, ToMakeVPeriodic))
continue;
const TopTools_ListOfShape& aList = aMapEdgeFaces.FindFromKey(edge);
TopTools_ListIteratorOfListOfShape anIter(aList);
for (; anIter.More(); anIter.Next()) {
TopoDS_Face anCheckedFace = TopoDS::Face(anIter.Value().Oriented(TopAbs_FORWARD));
if (anCheckedFace.IsSame(aFace))
continue;
if (aProcessed.Contains(anCheckedFace))
continue;
if (!IsEdgeValidToMerge(edge, anCheckedFace, aBaseSurface,
IsEdgeOnSeam, ToMakeUPeriodic, ToMakeVPeriodic)) {
// Skip seam edge.
continue;
}
// Check if faces belong to same solids.
if (!IsFacesOfSameSolids(aFace, anCheckedFace, aMapFaceSoOrSh)) {
continue;
}
if (IsSameDomain(aFace,anCheckedFace)) {
if (aList.Extent() != 2) {
// non mainfold case is not processed
continue;
}
//Prevent creating a face with parametric range more than period
if (IsEdgeOnSeam &&
(HasSeamEdge(aFace) || HasSeamEdge(anCheckedFace)))
continue;
// replacing pcurves
TopoDS_Face aMockUpFace;
BRep_Builder B;
B.MakeFace(aMockUpFace,aBaseSurface,aBaseLocation,0.);
MovePCurves(aMockUpFace,anCheckedFace);
if (AddOrdinaryEdges(edges,aMockUpFace,dummy)) {
// sequence edges is modified
i = dummy;
}
faces.Append(anCheckedFace);
aProcessed.Add(anCheckedFace);
break;
}
}
}
// all faces collected in the sequence. Perform union of faces
if (faces.Length() > 1) {
NbModif++;
TopoDS_Face aResult;
BRep_Builder B;
if (ToMakeUPeriodic || ToMakeVPeriodic)
{
Handle(Geom_BSplineSurface) aBSplineSurface = Handle(Geom_BSplineSurface)::DownCast(aBaseSurface);
if (aBSplineSurface.IsNull())
{
Standard_Real aTol = 1.e-4;
GeomAbs_Shape aUCont = GeomAbs_C1, aVCont = GeomAbs_C1;
Standard_Integer degU = 14, degV = 14;
Standard_Integer nmax = 16;
Standard_Integer aPrec = 1;
GeomConvert_ApproxSurface Approximator(aBaseSurface,aTol,aUCont,aVCont,degU,degV,nmax,aPrec);
aBSplineSurface = Approximator.Surface();
}
if (ToMakeUPeriodic)
aBSplineSurface->SetUPeriodic();
if (ToMakeVPeriodic)
aBSplineSurface->SetVPeriodic();
aBaseSurface = aBSplineSurface;
}
B.MakeFace(aResult,aBaseSurface,aBaseLocation,0);
Standard_Integer nbWires = 0;
// connecting wires
while (edges.Length()>0) {
Standard_Boolean isEdge3d = Standard_False;
nbWires++;
TopTools_MapOfShape aVertices;
TopoDS_Wire aWire;
B.MakeWire(aWire);
TopoDS_Edge anEdge = TopoDS::Edge(edges(1));
edges.Remove(1);
isEdge3d |= !BRep_Tool::Degenerated(anEdge);
B.Add(aWire,anEdge);
TopoDS_Vertex V1,V2;
TopExp::Vertices(anEdge,V1,V2);
aVertices.Add(V1);
aVertices.Add(V2);
Standard_Boolean isNewFound = Standard_False;
do {
isNewFound = Standard_False;
for(Standard_Integer j = 1; j <= edges.Length(); j++) {
anEdge = TopoDS::Edge(edges(j));
TopExp::Vertices(anEdge,V1,V2);
if(aVertices.Contains(V1) || aVertices.Contains(V2)) {
isEdge3d |= !BRep_Tool::Degenerated(anEdge);
aVertices.Add(V1);
aVertices.Add(V2);
B.Add(aWire,anEdge);
edges.Remove(j);
j--;
isNewFound = Standard_True;
}
}
} while (isNewFound);
// sorting any type of edges
aWire = TopoDS::Wire(aContext->Apply(aWire));
Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire(aWire,aResult,Precision::Confusion());
sfw->FixReorder();
Standard_Boolean isDegRemoved = Standard_False;
if(!sfw->StatusReorder ( ShapeExtend_FAIL )) {
// clear degenerated edges if at least one with 3d curve exist
if(isEdge3d) {
Handle(ShapeExtend_WireData) sewd = sfw->WireData();
for(Standard_Integer j = 1; j<=sewd->NbEdges();j++) {
TopoDS_Edge E = sewd->Edge(j);
if(BRep_Tool::Degenerated(E)) {
sewd->Remove(j);
isDegRemoved = Standard_True;
j--;
}
}
}
sfw->FixShifted();
if(isDegRemoved)
sfw->FixDegenerated();
}
TopoDS_Wire aWireFixed = sfw->Wire();
aContext->Replace(aWire,aWireFixed);
// add resulting wire
if (isEdge3d) {
B.Add(aResult,aWireFixed);
}
else {
// sorting edges
Handle(ShapeExtend_WireData) sbwd = sfw->WireData();
Standard_Integer nbEdges = sbwd->NbEdges();
// sort degenerated edges and create one edge instead of several ones
ShapeAnalysis_WireOrder sawo(Standard_False, 0);
ShapeAnalysis_Edge sae;
Standard_Integer aLastEdge = nbEdges;
for (Standard_Integer j = 1; j <= nbEdges; j++) {
Standard_Real f,l;
//smh protection on NULL pcurve
Handle(Geom2d_Curve) c2d;
if (!sae.PCurve(sbwd->Edge(j),aResult,c2d,f,l)) {
aLastEdge--;
continue;
}
sawo.Add(c2d->Value(f).XY(),c2d->Value(l).XY());
}
if (aLastEdge > 0) {
sawo.Perform();
// constructing one degenerative edge
gp_XY aStart, anEnd, tmp;
Standard_Integer nbFirst = sawo.Ordered(1);
TopoDS_Edge anOrigE = TopoDS::Edge(sbwd->Edge(nbFirst).Oriented(TopAbs_FORWARD));
ShapeBuild_Edge sbe;
TopoDS_Vertex aDummyV;
TopoDS_Edge E = sbe.CopyReplaceVertices(anOrigE,aDummyV,aDummyV);
sawo.XY(nbFirst,aStart,tmp);
sawo.XY(sawo.Ordered(aLastEdge),tmp,anEnd);
gp_XY aVec = anEnd-aStart;
Handle(Geom2d_Line) aLine = new Geom2d_Line(aStart,gp_Dir2d(anEnd-aStart));
B.UpdateEdge(E,aLine,aResult,0.);
B.Range(E,aResult,0.,aVec.Modulus());
Handle(Geom_Curve) C3d;
B.UpdateEdge(E,C3d,0.);
B.Degenerated(E,Standard_True);
TopoDS_Wire aW;
B.MakeWire(aW);
B.Add(aW,E);
B.Add(aResult,aW);
}
}
}
// perform substitution of face
aContext->Replace(aContext->Apply(aFace),aResult);
ShapeFix_Face sff (aResult);
//Initializing by tolerances
sff.SetPrecision(myTolerance);
sff.SetMinTolerance(tol);
Standard_Real MaxTol = DefineMaxTolerance(aResult);
sff.SetMaxTolerance(MaxTol);
//Setting modes
sff.FixOrientationMode() = 0;
//sff.FixWireMode() = 0;
sff.SetContext(aContext);
// Applying the fixes
sff.Perform();
if(sff.Status(ShapeExtend_FAIL))
hasFailed = Standard_True;
// breaking down to several faces
TopoDS_Shape theResult = aContext->Apply(aResult);
for (TopExp_Explorer aFaceExp (theResult,TopAbs_FACE); aFaceExp.More(); aFaceExp.Next()) {
TopoDS_Face aCurrent = TopoDS::Face(aFaceExp.Current().Oriented(TopAbs_FORWARD));
Handle(TColGeom_HArray2OfSurface) grid = new TColGeom_HArray2OfSurface ( 1, 1, 1, 1 );
grid->SetValue ( 1, 1, aBaseSurface );
Handle(ShapeExtend_CompositeSurface) G = new ShapeExtend_CompositeSurface ( grid );
ShapeFix_ComposeShell CompShell;
CompShell.Init ( G, aBaseLocation, aCurrent, ::Precision::Confusion() );//myPrecision
CompShell.SetContext( aContext );
TopTools_SequenceOfShape parts;
ShapeFix_SequenceOfWireSegment wires;
for(TopExp_Explorer W_Exp(aCurrent,TopAbs_WIRE);W_Exp.More();W_Exp.Next()) {
Handle(ShapeExtend_WireData) sbwd =
new ShapeExtend_WireData ( TopoDS::Wire(W_Exp.Current() ));
ShapeFix_WireSegment seg ( sbwd, TopAbs_REVERSED );
wires.Append(seg);
}
CompShell.DispatchWires ( parts,wires );
for (Standard_Integer j=1; j <= parts.Length(); j++ ) {
ShapeFix_Face aFixOrient(TopoDS::Face(parts(j)));
aFixOrient.SetContext(aContext);
aFixOrient.FixOrientation();
}
TopoDS_Shape CompRes;
if ( faces.Length() !=1 ) {
TopoDS_Shell S;
B.MakeShell ( S );
for ( i=1; i <= parts.Length(); i++ )
B.Add ( S, parts(i) );
CompRes = S;
}
else CompRes = parts(1);
aContext->Replace(aCurrent,CompRes);
}
// remove the remaining faces
for(i = 2; i <= faces.Length(); i++)
aContext->Remove(faces(i));
}
} // end processing each face
//TopoDS_Shape aResult = Shape;
if (NbModif > 0 && !hasFailed) {
TopoDS_Shape aResult = aContext->Apply(aSoOrSh);
ShapeFix_Edge sfe;
for (exp.Init(aResult,TopAbs_EDGE); exp.More(); exp.Next()) {
TopoDS_Edge E = TopoDS::Edge(exp.Current());
sfe.FixVertexTolerance (E);
// ptv add fix same parameter
sfe.FixSameParameter(E, myTolerance);
}
}
for (exp.Init(aSoOrSh, TopAbs_FACE); exp.More(); exp.Next()) {
TopoDS_Face aFace = TopoDS::Face(exp.Current().Oriented(TopAbs_FORWARD));
Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire;
sfw->SetContext(aContext);
sfw->SetPrecision(myTolerance);
sfw->SetMinTolerance(myTolerance);
sfw->SetMaxTolerance(Max(1.,myTolerance*1000.));
sfw->SetFace(aFace);
for (TopoDS_Iterator iter (aFace,Standard_False); iter.More(); iter.Next()) {
TopoDS_Shape aFaceCont = iter.Value();
if (!aFaceCont.IsNull() && aFaceCont.ShapeType() == TopAbs_WIRE) {
TopoDS_Wire wire = TopoDS::Wire(iter.Value());
sfw->Load(wire);
sfw->FixReorder();
sfw->FixShifted();
}
}
}
} // end processing each solid
const TopoDS_Shape aResShape = aContext->Apply(Shape);
return aResShape;
}
//=======================================================================
//function : IsSameDomain
//purpose :
//=======================================================================
bool getCylinder (Handle(Geom_Surface)& theInSurface, gp_Cylinder& theOutCylinder)
{
bool isCylinder = false;
if (theInSurface->IsKind(STANDARD_TYPE(Geom_CylindricalSurface))) {
Handle(Geom_CylindricalSurface) aGC = Handle(Geom_CylindricalSurface)::DownCast(theInSurface);
theOutCylinder = aGC->Cylinder();
isCylinder = true;
}
else if (theInSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
Handle(Geom_SurfaceOfRevolution) aRS =
Handle(Geom_SurfaceOfRevolution)::DownCast(theInSurface);
Handle(Geom_Curve) aBasis = aRS->BasisCurve();
if (aBasis->IsKind(STANDARD_TYPE(Geom_Line))) {
Handle(Geom_Line) aBasisLine = Handle(Geom_Line)::DownCast(aBasis);
gp_Dir aDir = aRS->Direction();
gp_Dir aBasisDir = aBasisLine->Position().Direction();
if (aBasisDir.IsParallel(aDir, Precision::Confusion())) {
// basis line is parallel to the revolution axis: it is a cylinder
gp_Pnt aLoc = aRS->Location();
Standard_Real aR = aBasisLine->Lin().Distance(aLoc);
gp_Ax3 aCylAx (aLoc, aDir);
theOutCylinder = gp_Cylinder(aCylAx, aR);
isCylinder = true;
}
}
}
else if (theInSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion))) {
Handle(Geom_SurfaceOfLinearExtrusion) aLES =
Handle(Geom_SurfaceOfLinearExtrusion)::DownCast(theInSurface);
Handle(Geom_Curve) aBasis = aLES->BasisCurve();
if (aBasis->IsKind(STANDARD_TYPE(Geom_Circle))) {
Handle(Geom_Circle) aBasisCircle = Handle(Geom_Circle)::DownCast(aBasis);
gp_Dir aDir = aLES->Direction();
gp_Dir aBasisDir = aBasisCircle->Position().Direction();
if (aBasisDir.IsParallel(aDir, Precision::Confusion())) {
// basis circle is normal to the extrusion axis: it is a cylinder
gp_Pnt aLoc = aBasisCircle->Location();
Standard_Real aR = aBasisCircle->Radius();
gp_Ax3 aCylAx (aLoc, aDir);
theOutCylinder = gp_Cylinder(aCylAx, aR);
isCylinder = true;
}
}
}
else {
}
return isCylinder;
}
Standard_Boolean BlockFix_UnionFaces::IsSameDomain(const TopoDS_Face& aFace,
const TopoDS_Face& aCheckedFace) const
{
//checking the same handles
TopLoc_Location L1, L2;
Handle(Geom_Surface) S1, S2;
S1 = BRep_Tool::Surface(aFace,L1);
S2 = BRep_Tool::Surface(aCheckedFace,L2);
if (S1 == S2 && L1 == L2)
return true;
// planar and cylindrical cases (IMP 20052)
Standard_Real aPrec = Precision::Confusion();
S1 = BRep_Tool::Surface(aFace);
S2 = BRep_Tool::Surface(aCheckedFace);
S1 = ClearRts(S1);
S2 = ClearRts(S2);
//Handle(Geom_OffsetSurface) aGOFS1, aGOFS2;
//aGOFS1 = Handle(Geom_OffsetSurface)::DownCast(S1);
//aGOFS2 = Handle(Geom_OffsetSurface)::DownCast(S2);
//if (!aGOFS1.IsNull()) S1 = aGOFS1->BasisSurface();
//if (!aGOFS2.IsNull()) S2 = aGOFS2->BasisSurface();
// case of two elementary surfaces: use OCCT tool
// elementary surfaces: ConicalSurface, CylindricalSurface,
// Plane, SphericalSurface and ToroidalSurface
if (S1->IsKind(STANDARD_TYPE(Geom_ElementarySurface)) &&
S2->IsKind(STANDARD_TYPE(Geom_ElementarySurface)))
{
Handle(GeomAdaptor_HSurface) aGA1 = new GeomAdaptor_HSurface(S1);
Handle(GeomAdaptor_HSurface) aGA2 = new GeomAdaptor_HSurface(S2);
Handle(BRepTopAdaptor_TopolTool) aTT1 = new BRepTopAdaptor_TopolTool();
Handle(BRepTopAdaptor_TopolTool) aTT2 = new BRepTopAdaptor_TopolTool();
try {
OCC_CATCH_SIGNALS;
IntPatch_ImpImpIntersection anIIInt (aGA1, aTT1, aGA2, aTT2, aPrec, aPrec);
if (!anIIInt.IsDone() || anIIInt.IsEmpty())
return false;
return anIIInt.TangentFaces();
}
catch (Standard_Failure&) {
return false;
}
}
// case of two planar surfaces:
// all kinds of surfaces checked, including b-spline and bezier
GeomLib_IsPlanarSurface aPlanarityChecker1 (S1, aPrec);
if (aPlanarityChecker1.IsPlanar()) {
GeomLib_IsPlanarSurface aPlanarityChecker2 (S2, aPrec);
if (aPlanarityChecker2.IsPlanar()) {
gp_Pln aPln1 = aPlanarityChecker1.Plan();
gp_Pln aPln2 = aPlanarityChecker2.Plan();
if (aPln1.Position().Direction().IsParallel(aPln2.Position().Direction(), aPrec) &&
aPln1.Distance(aPln2) < aPrec) {
return true;
}
}
}
// case of two cylindrical surfaces, at least one of which is a swept surface
// swept surfaces: SurfaceOfLinearExtrusion, SurfaceOfRevolution
if ((S1->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
S1->IsKind(STANDARD_TYPE(Geom_SweptSurface))) &&
(S2->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
S2->IsKind(STANDARD_TYPE(Geom_SweptSurface))))
{
gp_Cylinder aCyl1, aCyl2;
if (getCylinder(S1, aCyl1) && getCylinder(S2, aCyl2)) {
if (fabs(aCyl1.Radius() - aCyl2.Radius()) < aPrec) {
gp_Dir aDir1 = aCyl1.Position().Direction();
gp_Dir aDir2 = aCyl2.Position().Direction();
if (aDir1.IsParallel(aDir2, aPrec)) {
gp_Pnt aLoc1 = aCyl1.Location();
gp_Pnt aLoc2 = aCyl2.Location();
gp_Vec aVec12 (aLoc1, aLoc2);
if (aVec12.SquareMagnitude() < aPrec*aPrec ||
aVec12.IsParallel(aDir1, aPrec)) {
return true;
}
}
}
}
}
return false;
}
//=======================================================================
//function : MovePCurves
//purpose :
//=======================================================================
void BlockFix_UnionFaces::MovePCurves(TopoDS_Face& aTarget,
const TopoDS_Face& aSource) const
{
BRep_Builder B;
for(TopExp_Explorer wexp(aSource,TopAbs_WIRE);wexp.More();wexp.Next()) {
Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire(TopoDS::Wire(wexp.Current()),
aTarget, Precision::Confusion());
sfw->FixReorder();
Standard_Boolean isReoredFailed = sfw->StatusReorder ( ShapeExtend_FAIL );
sfw->FixEdgeCurves();
if(isReoredFailed)
continue;
sfw->FixShifted();
sfw->FixDegenerated();
// remove degenerated edges from not degenerated points
ShapeAnalysis_Edge sae;
Handle(ShapeExtend_WireData) sewd = sfw->WireData();
for(Standard_Integer i = 1; i<=sewd->NbEdges();i++) {
TopoDS_Edge E = sewd->Edge(i);
if(BRep_Tool::Degenerated(E)&&!sae.HasPCurve(E,aTarget)) {
sewd->Remove(i);
i--;
}
}
TopoDS_Wire ResWire = sfw->Wire();
B.Add(aTarget,ResWire);
}
}

View File

@ -1,66 +0,0 @@
// Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
#ifndef _BlockFix_UnionFaces_HeaderFile
#define _BlockFix_UnionFaces_HeaderFile
#include <Standard_Real.hxx>
#include <Standard_Boolean.hxx>
#include <Standard.hxx>
#include <Standard_Macro.hxx>
class TopoDS_Shape;
class TopoDS_Face;
class BlockFix_UnionFaces
{
public:
Standard_EXPORT BlockFix_UnionFaces();
Standard_EXPORT Standard_Real& GetTolerance();
/* \brief To get/set the OptimumNbFaces parameter
*
* If a being processed solid has less than OptimumNbFaces
* faces, no union will be performed.
* By default this parameter is set to 6 (to correctly
* process blocks - hexahedral solids)
* Special values: 0 - do all possible unions, regardless the faces quantity,
* negative - do not perform any unions, regardless the faces quantity.
*
*/
Standard_EXPORT Standard_Integer& GetOptimumNbFaces();
Standard_EXPORT TopoDS_Shape Perform(const TopoDS_Shape& Shape);
Standard_EXPORT virtual Standard_Boolean IsSameDomain(const TopoDS_Face& aFace,
const TopoDS_Face& aChekedFace) const;
Standard_EXPORT virtual void MovePCurves(TopoDS_Face& aTarget,
const TopoDS_Face& aSource) const;
private:
Standard_Real myTolerance;
Standard_Integer myOptimumNbFaces;
};
#endif

View File

@ -47,8 +47,6 @@ SET(BlockFix_HEADERS
BlockFix_CheckTool.hxx
BlockFix_PeriodicSurfaceModifier.hxx
BlockFix_SphereSpaceModifier.hxx
BlockFix_UnionEdges.hxx
BlockFix_UnionFaces.hxx
)
# --- sources ---
@ -59,8 +57,6 @@ SET(BlockFix_SOURCES
BlockFix.cxx
BlockFix_PeriodicSurfaceModifier.cxx
BlockFix_SphereSpaceModifier.cxx
BlockFix_UnionEdges.cxx
BlockFix_UnionFaces.cxx
)
# --- rules ---

View File

@ -39,7 +39,6 @@
#include <ShHealOper_ShapeProcess.hxx>
//#include <GEOMAlgo_Gluer.hxx>
#include <BlockFix_BlockFixAPI.hxx>
#include <BlockFix_UnionFaces.hxx>
#include "utilities.h"
@ -62,6 +61,7 @@
#include <BRepClass3d_SolidClassifier.hxx>
#include <BRepExtrema_ExtPF.hxx>
#include <BRepExtrema_DistShapeShape.hxx>
#include <ShapeUpgrade_UnifySameDomain.hxx>
#include <TopAbs.hxx>
#include <TopoDS.hxx>
@ -734,7 +734,9 @@ Standard_Integer GEOMImpl_BlockDriver::Execute(Handle(TFunction_Logbook)& log) c
// Glue faces of the multi-block
aShape = GEOMImpl_GlueDriver::GlueFaces(aMulti, aTol, Standard_False);
} else if (aType == BLOCK_UNION_FACES) {
}
else if (aType == BLOCK_UNION_FACES)
{
GEOMImpl_IBlockTrsf aCI (aFunction);
Handle(GEOM_Function) aRefShape = aCI.GetOriginal();
TopoDS_Shape aBlockOrComp = aRefShape->GetValue();
@ -742,11 +744,17 @@ Standard_Integer GEOMImpl_BlockDriver::Execute(Handle(TFunction_Logbook)& log) c
Standard_NullObject::Raise("Null Shape given");
}
BlockFix_UnionFaces aFaceUnifier;
aFaceUnifier.GetOptimumNbFaces() = 0; // To force union faces.
aShape = aFaceUnifier.Perform(aBlockOrComp);
} else { // unknown function type
Standard_Boolean isUnifyEdges = Standard_False;
Standard_Boolean isUnifyFaces = Standard_True;
Standard_Boolean isConcatBSplines = Standard_True;
ShapeUpgrade_UnifySameDomain aUnifier (aBlockOrComp,
isUnifyEdges, isUnifyFaces, isConcatBSplines);
aUnifier.SetLinearTolerance(Precision::Confusion());
aUnifier.SetAngularTolerance(Precision::Confusion());
aUnifier.Build();
aShape = aUnifier.Shape();
}
else { // unknown function type
return 0;
}
}