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Fix a problem with too small deflection, passed to BRepMesh_IncrementalMesh

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This commit is contained in:
jfa 2024-03-22 14:08:54 +00:00
parent de8926be4a
commit dcf7fdb96d
18 changed files with 160 additions and 2155 deletions
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3
src/GEOMAlgo/CMakeLists.txt
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@ -60,10 +60,7 @@ SET(GEOMAlgo_HEADERS
GEOMAlgo_DataMapOfShapeMapOfShape.hxx
GEOMAlgo_DataMapOfShapePnt.hxx
GEOMAlgo_Extractor.hxx
GEOMAlgo_FinderShapeOn.hxx
GEOMAlgo_FinderShapeOn1.hxx
GEOMAlgo_FinderShapeOn2.hxx
GEOMAlgo_FinderShapeOnQuad.hxx
GEOMAlgo_GetInPlace.hxx
GEOMAlgo_GetInPlaceAPI.hxx
GEOMAlgo_GlueAnalyser.hxx

52
src/GEOMAlgo/GEOMAlgo_AlgoTools.cxx
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@ -80,7 +80,6 @@
#include <BRepTools.hxx>
#include <BRepTools_WireExplorer.hxx>
#include <BRepBndLib.hxx>
#include <BRepMesh_IncrementalMesh.hxx>
#include <BRepGProp.hxx>
#include <IntTools_Tools.hxx>
@ -834,57 +833,6 @@ Standard_Integer GEOMAlgo_AlgoTools::RefineSDShapes
//
return 0;
}
//=======================================================================
//function : BuildTriangulation
//purpose :
//=======================================================================
Standard_Boolean
GEOMAlgo_AlgoTools::BuildTriangulation (const TopoDS_Shape& theShape)
{
// calculate deflection
Standard_Real aDeviationCoefficient = 0.001;
Bnd_Box B;
BRepBndLib::Add(theShape, B);
Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
B.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
Standard_Real dx = aXmax - aXmin, dy = aYmax - aYmin, dz = aZmax - aZmin;
Standard_Real aDeflection = Max(Max(dx, dy), dz) * aDeviationCoefficient * 4;
Standard_Real aHLRAngle = 0.349066;
// build triangulation
BRepMesh_IncrementalMesh Inc (theShape, aDeflection, Standard_False, aHLRAngle);
// check triangulation
bool isTriangulation = true;
TopExp_Explorer exp (theShape, TopAbs_FACE);
if (exp.More())
{
TopLoc_Location aTopLoc;
Handle(Poly_Triangulation) aTRF;
aTRF = BRep_Tool::Triangulation(TopoDS::Face(exp.Current()), aTopLoc);
if (aTRF.IsNull()) {
isTriangulation = false;
}
}
else // no faces, try edges
{
TopExp_Explorer expe (theShape, TopAbs_EDGE);
if (!expe.More()) {
isTriangulation = false;
}
else {
TopLoc_Location aLoc;
Handle(Poly_Polygon3D) aPE = BRep_Tool::Polygon3D(TopoDS::Edge(expe.Current()), aLoc);
if (aPE.IsNull()) {
isTriangulation = false;
}
}
}
return isTriangulation;
}
//=======================================================================
//function : IsCompositeShape

3
src/GEOMAlgo/GEOMAlgo_AlgoTools.hxx
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@ -87,9 +87,6 @@ class GEOMAlgo_AlgoTools {
static Standard_Boolean IsCompositeShape(const TopoDS_Shape& aS) ;
Standard_EXPORT
static Standard_Boolean BuildTriangulation(const TopoDS_Shape& aS) ;
Standard_EXPORT
static Standard_Integer RefineSDShapes
(GEOMAlgo_IndexedDataMapOfPassKeyShapeListOfShape& aMSD,

611
src/GEOMAlgo/GEOMAlgo_FinderShapeOn.cxx
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@ -1,611 +0,0 @@
// Copyright (C) 2007-2024 CEA, EDF, 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: GEOMAlgo_FinderShapeOn.cxx
// Created: Tue Jan 11 14:44:31 2005
// Author: Peter KURNEV
#include <GEOMAlgo_FinderShapeOn.hxx>
#include <Precision.hxx>
#include <gp_Pnt.hxx>
#include <TopAbs_ShapeEnum.hxx>
#include <TopAbs_Orientation.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Compound.hxx>
#include <TopoDS_Shell.hxx>
#include <TopoDS_Solid.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
#include <TopTools_DataMapOfShapeShape.hxx>
#include <Bnd_Box.hxx>
#include <BRepBndLib.hxx>
#include <BRepMesh_IncrementalMesh.hxx>
#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <BRepLib_MakeFace.hxx>
#include <BRepLib_FaceError.hxx>
#include <GEOMAlgo_WireSolid.hxx>
#include <GEOMAlgo_ShellSolid.hxx>
#include <GEOMAlgo_VertexSolid.hxx>
#include <GEOMAlgo_ShapeSolid.hxx>
#include <GEOMAlgo_SolidSolid.hxx>
#include <GEOMAlgo_SurfaceTools.hxx>
#include <GEOMAlgo_AlgoTools.hxx>
#include <BOPAlgo_PaveFiller.hxx>
#include <BOPCol_ListOfShape.hxx>
//=======================================================================
//function : GEOMAlgo_FinderShapeOn
//purpose :
//=======================================================================
GEOMAlgo_FinderShapeOn::GEOMAlgo_FinderShapeOn()
:
GEOMAlgo_ShapeAlgo()
{
myTolerance=0.0001;
myShapeType=TopAbs_VERTEX;
myState=GEOMAlgo_ST_UNKNOWN;
myIsAnalytic=Standard_True;
}
//=======================================================================
//function : ~
//purpose :
//=======================================================================
GEOMAlgo_FinderShapeOn::~GEOMAlgo_FinderShapeOn()
{
}
//=======================================================================
//function : SetSurface
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::SetSurface(const Handle(Geom_Surface)& aS)
{
mySurface=aS;
}
//=======================================================================
//function : Surface
//purpose :
//=======================================================================
const Handle(Geom_Surface)& GEOMAlgo_FinderShapeOn::Surface() const
{
return mySurface;
}
//=======================================================================
//function : SetShapeType
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::SetShapeType(const TopAbs_ShapeEnum aType)
{
myShapeType=aType;
}
//=======================================================================
//function : ShapeType
//purpose :
//=======================================================================
TopAbs_ShapeEnum GEOMAlgo_FinderShapeOn::ShapeType()const
{
return myShapeType;
}
//=======================================================================
//function : SetState
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::SetState(const GEOMAlgo_State aState)
{
myState=aState;
}
//=======================================================================
//function : State
//purpose :
//=======================================================================
GEOMAlgo_State GEOMAlgo_FinderShapeOn::State() const
{
return myState;
}
//=======================================================================
// function: Shapes
// purpose:
//=======================================================================
const TopTools_ListOfShape& GEOMAlgo_FinderShapeOn::Shapes() const
{
Standard_Boolean bIsConformState;
Standard_Integer i, aNb;
TopAbs_State aSt;
TopTools_ListOfShape* pL;
//
pL=(TopTools_ListOfShape*) &myLS;
pL->Clear();
//
aNb=myMSS.Extent();
for (i=1; i<=aNb; ++i) {
const TopoDS_Shape& aS=myMSS.FindKey(i);
aSt=myMSS.FindFromIndex(i);
//
bIsConformState=GEOMAlgo_SurfaceTools::IsConformState(aSt, myState);
if (bIsConformState) {
pL->Append(aS);
}
}
return myLS;
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::Perform()
{
myErrorStatus=0;
myWarningStatus=0;
myLS.Clear();
myMSS.Clear();
//
if (!myResult.IsNull()){
myResult.Nullify();
}
//
CheckData();
if(myErrorStatus) {
return;
}
//
// Initialize the context
GEOMAlgo_ShapeAlgo::Perform();
//
myIsAnalytic=GEOMAlgo_SurfaceTools::IsAnalytic(mySurface);
//
MakeArgument1();
if(myErrorStatus) {
return;
}
//
if (myIsAnalytic && myShapeType==TopAbs_VERTEX) {
FindVertices();
return;
}
//
MakeArgument2();
if(myErrorStatus) {
return;
}
//
Find();
if(myErrorStatus || myWarningStatus) {
return;
}
//
}
//=======================================================================
//function : FindVertices
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::FindVertices()
{
Standard_Integer i, aNb, iErr;
TopAbs_State aSt;
TopAbs_Orientation aOr;
gp_Pnt aP;
TopTools_IndexedMapOfShape aM;
//
TopExp::MapShapes(myArg1, TopAbs_FACE, aM);
const TopoDS_Face& aF=TopoDS::Face(aM(1));
aOr=aF.Orientation();
//
aM.Clear();
TopExp::MapShapes(myShape, myShapeType, aM);
aNb=aM.Extent();
if (!aNb) {
myWarningStatus=10; // No found sub-shapes of type myShapeType
return;
}
//
for (i=1; i<=aNb; ++i) {
const TopoDS_Shape& aS=aM(i);
const TopoDS_Vertex& aV=TopoDS::Vertex(aS);
aP=BRep_Tool::Pnt(aV);
iErr=GEOMAlgo_SurfaceTools::GetState(aP, mySurface, myTolerance, aSt);
if (aOr==TopAbs_REVERSED) {
aSt=GEOMAlgo_SurfaceTools::ReverseState(aSt);
}
myMSS.Add(aS, aSt);
}
}
//=======================================================================
//function : Find
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::Find()
{
Standard_Integer i, aNb;
Standard_Boolean bICS;
TopTools_IndexedMapOfShape aM;
//
TopExp::MapShapes(myArg2, myShapeType, aM);
//
aNb=aM.Extent();
if (!aNb) {
myWarningStatus=10; // No found sub-shapes of type myShapeType
return;
}
//
bICS=GEOMAlgo_AlgoTools::IsCompositeShape(myArg2);
if (!bICS || myIsAnalytic) {
TopoDS_Compound aCmp;
BRep_Builder aBB;
//
aBB.MakeCompound(aCmp);
for (i=1; i<=aNb; ++i) {
const TopoDS_Shape& aSi=aM(i);
aBB.Add(aCmp, aSi);
}
//
aM.Clear();
aM.Add(aCmp);
aNb=1;
}
//
for (i=1; i<=aNb; ++i) {
const TopoDS_Shape& aS=aM(i);
Find(aS);
if (myErrorStatus) {
return;
}
}
}
//=======================================================================
//function : Find
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::Find(const TopoDS_Shape& aS)
{
myErrorStatus=0;
//
Standard_Integer i, iErr;
TopAbs_State aSts[]={TopAbs_IN, TopAbs_OUT, TopAbs_ON};
TopTools_ListIteratorOfListOfShape aIt;
BOPCol_ListOfShape aLS;
BOPAlgo_PaveFiller aPF;
//
// 1. Prepare DSFiller
aLS.Append(myArg1);
aLS.Append(aS);
aPF.SetArguments(aLS);
//
aPF.Perform();
iErr=aPF.ErrorStatus();
if (iErr) {
myErrorStatus=31; // PaveFiller is failed
return;
}
//
// 2. Find shapes
GEOMAlgo_ShapeSolid* pSS;
GEOMAlgo_VertexSolid aVXS;
GEOMAlgo_WireSolid aWRS;
GEOMAlgo_ShellSolid aSHS;
GEOMAlgo_SolidSolid aSLS;
//
pSS=NULL;
//
switch (myShapeType) {
case TopAbs_VERTEX:
pSS=&aVXS;
break;
case TopAbs_EDGE:
pSS=&aWRS;
break;
case TopAbs_FACE:
pSS=&aSHS;
break;
case TopAbs_SOLID:
aSLS.SetShape2(myArg2);
pSS=&aSLS;
break;
default:
myErrorStatus=12; // unallowed sub-shape type
return;
}
//
pSS->SetFiller(aPF);
pSS->Perform();
iErr=pSS->ErrorStatus();
if (iErr) {
myErrorStatus=32; // builder ShapeSolid failed
return;
}
//
for (i=0; i<3; ++i) {
const TopTools_ListOfShape& aLS=pSS->Shapes(aSts[i]);
aIt.Initialize(aLS);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aSImage=aIt.Value();
if (myImages.IsBound(aSImage)) {
const TopoDS_Shape& aSx=myImages.Find(aSImage);
myMSS.Add(aSx, aSts[i]);
}
else {
myErrorStatus=33;// can not find original shape
return;
}
}
}
}
//=======================================================================
//function : MakeArgument1
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::MakeArgument1()
{
myErrorStatus=0;
//
Standard_Integer i, aNb;
TopAbs_ShapeEnum aType;
BRepLib_FaceError aFErr;
BRepLib_MakeFace aMF;
TopTools_IndexedMapOfShape aM;
BRep_Builder aBB;
TopoDS_Face aFace;
TopoDS_Shell aSh;
TopoDS_Solid aSd;
//
// Argument 1
if (!myIsAnalytic) {
aMF.Init(mySurface, Standard_True, Precision::Confusion());
aFErr=aMF.Error();
if (aFErr!=BRepLib_FaceDone) {
myErrorStatus=20; // can not build the face
return;
}
//
const TopoDS_Shape& aF=aMF.Shape();
aFace=TopoDS::Face(aF);
//
// update tolerances
aM.Add(aF);
TopExp::MapShapes(aF, TopAbs_VERTEX, aM);
TopExp::MapShapes(aF, TopAbs_EDGE, aM);
aNb=aM.Extent();
for (i=1; i<=aNb; ++i) {
const TopoDS_Shape& aS=aM(i);
aType=aS.ShapeType();
switch (aType) {
case TopAbs_VERTEX: {
const TopoDS_Vertex& aVx=TopoDS::Vertex(aS);
aBB.UpdateVertex(aVx, myTolerance);
}
break;
case TopAbs_EDGE: {
const TopoDS_Edge& aEx=TopoDS::Edge(aS);
aBB.UpdateEdge(aEx, myTolerance);
}
break;
case TopAbs_FACE: {
const TopoDS_Face& aFx=TopoDS::Face(aS);
aBB.UpdateFace(aFx, myTolerance);
}
break;
default:
break;
}
}
} //
else {
aBB.MakeFace(aFace, mySurface, myTolerance);
}
//
// make solid
aBB.MakeShell(aSh);
aBB.Add(aSh, aFace);
aBB.MakeSolid(aSd);
aBB.Add(aSd, aSh);
myArg1=aSd;
}
//=======================================================================
//function : MakeArgument2
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::MakeArgument2()
{
myErrorStatus=0;
//
TopoDS_Shape aSC;
TopTools_DataMapOfShapeShape aOriginals;
//
myImages.Clear();
//
GEOMAlgo_FinderShapeOn::CopySource(myShape, myImages, aOriginals, aSC);
//
myArg2=aSC;
}
//=======================================================================
//function : CheckData
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::CheckData()
{
myErrorStatus=0;
//
if(mySurface.IsNull()) {
myErrorStatus=10; // mySurface=NULL
return;
}
//
if (myShape.IsNull()) {
myErrorStatus=11; // myShape=NULL
return;
}
//
if (!(myShapeType==TopAbs_VERTEX ||
myShapeType==TopAbs_EDGE ||
myShapeType==TopAbs_FACE ||
myShapeType==TopAbs_SOLID)) {
myErrorStatus=12; // unallowed sub-shape type
return;
}
//
if (myState==GEOMAlgo_ST_UNKNOWN ||
myState==GEOMAlgo_ST_INOUT) {
myErrorStatus=13; // unallowed state type
return;
}
}
//
//=======================================================================
//function : CopySource
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn::CopySource(const TopoDS_Shape& aE,
TopTools_DataMapOfShapeShape& aImages,
TopTools_DataMapOfShapeShape& aOriginals,
TopoDS_Shape& aEx)
{
Standard_Boolean bFree;
TopAbs_ShapeEnum aType;
Standard_Integer aR;
BRep_Builder BB;
TopoDS_Iterator aIt;
//
aType=aE.ShapeType();
//
if (aOriginals.IsBound(aE)) {
aEx=aOriginals.ChangeFind(aE);
return;
}
else {
aEx=aE.EmptyCopied();
aOriginals.Bind(aE, aEx);
aImages.Bind(aEx, aE);
}
//
aR=(Standard_Integer)aType+1;
if (aR>TopAbs_VERTEX) {
return;
}
//
bFree=aEx.Free();
aEx.Free(Standard_True);
//
aType=(TopAbs_ShapeEnum) aR;
//
aIt.Initialize(aE);//, Standard_False);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aV=aIt.Value();
TopoDS_Shape aVx;
//
CopySource (aV, aImages, aOriginals, aVx);
//
aVx.Orientation(aV.Orientation());
BB.Add(aEx, aVx);
}
//
aEx.Free(bFree);
}
//
//=======================================================================
//function : BuildTriangulation
//purpose :
//=======================================================================
Standard_Boolean
GEOMAlgo_FinderShapeOn::BuildTriangulation (const TopoDS_Shape& theShape)
{
// calculate deflection
Standard_Real aDeviationCoefficient = 0.001;
Bnd_Box B;
BRepBndLib::Add(theShape, B);
Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
B.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
Standard_Real dx = aXmax - aXmin, dy = aYmax - aYmin, dz = aZmax - aZmin;
Standard_Real aDeflection = Max(Max(dx, dy), dz) * aDeviationCoefficient * 4;
Standard_Real aHLRAngle = 0.349066;
// build triangulation
BRepMesh_IncrementalMesh Inc (theShape, aDeflection, Standard_False, aHLRAngle);
// check triangulation
bool isTriangulation = true;
TopExp_Explorer exp (theShape, TopAbs_FACE);
if (exp.More())
{
TopLoc_Location aTopLoc;
Handle(Poly_Triangulation) aTRF;
aTRF = BRep_Tool::Triangulation(TopoDS::Face(exp.Current()), aTopLoc);
if (aTRF.IsNull()) {
isTriangulation = false;
}
}
else // no faces, try edges
{
TopExp_Explorer expe (theShape, TopAbs_EDGE);
if (!expe.More()) {
isTriangulation = false;
}
else {
TopLoc_Location aLoc;
Handle(Poly_Polygon3D) aPE = BRep_Tool::Polygon3D(TopoDS::Edge(expe.Current()), aLoc);
if (aPE.IsNull()) {
isTriangulation = false;
}
}
}
return isTriangulation;
}
//
// myErrorStatus :
//
// 10 -mySurface=NULL
// 11 -myShape=NULL
// 12 -unallowed type of sub-shapes
// 13 -unallowed state
// 20 -can not build the face
// 30 -wrong args are used for DSFiller
// 31 -DSFiller failed
// 32 -builder ShapeSolid failed
// 33 -can not find original shape
//
// myWarningStatus
//
// 10 - sub-shapes of type myShapeType can not be fond in myShape

125
src/GEOMAlgo/GEOMAlgo_FinderShapeOn.hxx
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@ -1,125 +0,0 @@
// Copyright (C) 2007-2024 CEA, EDF, 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: GEOMAlgo_FinderShapeOn.hxx
// Created: Tue Jan 11 14:44:31 2005
// Author: Peter KURNEV
#ifndef _GEOMAlgo_FinderShapeOn_HeaderFile
#define _GEOMAlgo_FinderShapeOn_HeaderFile
#include <Standard.hxx>
#include <Standard_Macro.hxx>
#include <Standard_Boolean.hxx>
#include <Geom_Surface.hxx>
#include <TopAbs_ShapeEnum.hxx>
#include <TopoDS_Shape.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_DataMapOfShapeShape.hxx>
#include <GEOMAlgo_State.hxx>
#include <GEOMAlgo_ShapeAlgo.hxx>
#include <GEOMAlgo_IndexedDataMapOfShapeState.hxx>
//=======================================================================
//function : GEOMAlgo_FinderShapeOn
//purpose :
//=======================================================================
class GEOMAlgo_FinderShapeOn : public GEOMAlgo_ShapeAlgo
{
public:
Standard_EXPORT
GEOMAlgo_FinderShapeOn();
Standard_EXPORT
virtual ~GEOMAlgo_FinderShapeOn();
Standard_EXPORT
virtual void Perform() ;
Standard_EXPORT
void SetSurface(const Handle(Geom_Surface)& aS) ;
Standard_EXPORT
void SetShapeType(const TopAbs_ShapeEnum aST) ;
Standard_EXPORT
void SetState(const GEOMAlgo_State aSF) ;
Standard_EXPORT
const Handle(Geom_Surface)& Surface() const;
Standard_EXPORT
TopAbs_ShapeEnum ShapeType() const;
Standard_EXPORT
GEOMAlgo_State State() const;
Standard_EXPORT
const TopTools_ListOfShape& Shapes() const;
Standard_EXPORT
static void CopySource(const TopoDS_Shape& aS,
TopTools_DataMapOfShapeShape& aImages,
TopTools_DataMapOfShapeShape& aOriginals,
TopoDS_Shape& aSC) ;
Standard_EXPORT
static Standard_Boolean BuildTriangulation(const TopoDS_Shape& aS) ;
protected:
Standard_EXPORT
virtual void CheckData() ;
Standard_EXPORT
void MakeArgument1() ;
Standard_EXPORT
void MakeArgument2() ;
Standard_EXPORT
void Find() ;
Standard_EXPORT
void Find(const TopoDS_Shape& aS) ;
Standard_EXPORT
void FindVertices() ;
Handle(Geom_Surface) mySurface;
TopAbs_ShapeEnum myShapeType;
GEOMAlgo_State myState;
TopoDS_Shape myArg1;
TopoDS_Shape myArg2;
TopTools_ListOfShape myLS;
TopTools_DataMapOfShapeShape myImages;
GEOMAlgo_IndexedDataMapOfShapeState myMSS;
Standard_Boolean myIsAnalytic;
};
#endif

787
src/GEOMAlgo/GEOMAlgo_FinderShapeOn1.cxx
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@ -1,787 +0,0 @@
// Copyright (C) 2007-2024 CEA, EDF, 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: GEOMAlgo_FinderShapeOn1.cxx
// Created: Fri Mar 4 10:31:06 2005
// Author: Peter KURNEV
#include <GEOMAlgo_FinderShapeOn1.hxx>
#include <math.h>
#include <Precision.hxx>
#include <TColStd_Array1OfInteger.hxx>
#include <TColStd_MapOfInteger.hxx>
#include <gp_Trsf.hxx>
#include <gp_Cylinder.hxx>
#include <gp_Pnt.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <Poly_Array1OfTriangle.hxx>
#include <Poly_Triangle.hxx>
#include <Poly_PolygonOnTriangulation.hxx>
#include <Poly_Triangulation.hxx>
#include <Poly_Polygon3D.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Surface.hxx>
#include <GeomAdaptor_Surface.hxx>
#include <GeomAbs_SurfaceType.hxx>
#include <GeomAdaptor_Curve.hxx>
#include <GeomAbs_CurveType.hxx>
#include <TopAbs_State.hxx>
#include <TopLoc_Location.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Edge.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
#include <BRep_Tool.hxx>
#include <BRepLib_MakeEdge.hxx>
#include <GEOMAlgo_ListIteratorOfListOfPnt.hxx>
#include <GEOMAlgo_SurfaceTools.hxx>
#include <GEOMAlgo_StateCollector.hxx>
#include <GEOMAlgo_AlgoTools.hxx>
#include <GEOMAlgo_PassKey.hxx>
#include <GEOMAlgo_DataMapOfPassKeyInteger.hxx>
#include <GEOMAlgo_DataMapIteratorOfDataMapOfPassKeyInteger.hxx>
//=======================================================================
//function : GEOMAlgo_FinderShapeOn1
//purpose :
//=======================================================================
GEOMAlgo_FinderShapeOn1::GEOMAlgo_FinderShapeOn1()
:
GEOMAlgo_ShapeAlgo()
{
myTolerance=0.0001;
myShapeType=TopAbs_VERTEX;
myState=GEOMAlgo_ST_UNKNOWN;
myNbPntsMin=3;
myNbPntsMax=0;
}
//=======================================================================
//function : ~
//purpose :
//=======================================================================
GEOMAlgo_FinderShapeOn1::~GEOMAlgo_FinderShapeOn1()
{
}
//=======================================================================
//function : SetSurface
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::SetSurface(const Handle(Geom_Surface)& aS)
{
mySurface=aS;
}
//=======================================================================
//function : Surface
//purpose :
//=======================================================================
const Handle(Geom_Surface)& GEOMAlgo_FinderShapeOn1::Surface() const
{
return mySurface;
}
//=======================================================================
//function : SetShapeType
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::SetShapeType(const TopAbs_ShapeEnum aType)
{
myShapeType=aType;
}
//=======================================================================
//function : ShapeType
//purpose :
//=======================================================================
TopAbs_ShapeEnum GEOMAlgo_FinderShapeOn1::ShapeType()const
{
return myShapeType;
}
//=======================================================================
//function : SetState
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::SetState(const GEOMAlgo_State aState)
{
myState=aState;
}
//=======================================================================
//function : State
//purpose :
//=======================================================================
GEOMAlgo_State GEOMAlgo_FinderShapeOn1::State() const
{
return myState;
}
//=======================================================================
//function : SetNbPntsMin
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::SetNbPntsMin(const Standard_Integer aNb)
{
myNbPntsMin=aNb;
}
//=======================================================================
//function : NbPntsMin
//purpose :
//=======================================================================
Standard_Integer GEOMAlgo_FinderShapeOn1::NbPntsMin()const
{
return myNbPntsMin;
}
//=======================================================================
//function : SetNbPntsMax
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::SetNbPntsMax(const Standard_Integer aNb)
{
myNbPntsMax=aNb;
}
//=======================================================================
//function : NbPntsMax
//purpose :
//=======================================================================
Standard_Integer GEOMAlgo_FinderShapeOn1::NbPntsMax()const
{
return myNbPntsMax;
}
//=======================================================================
// function: MSS
// purpose:
//=======================================================================
const GEOMAlgo_IndexedDataMapOfShapeState& GEOMAlgo_FinderShapeOn1::MSS() const
{
return myMSS;
}
//=======================================================================
// function: Shapes
// purpose:
//=======================================================================
const TopTools_ListOfShape& GEOMAlgo_FinderShapeOn1::Shapes() const
{
Standard_Integer i, aNb;
TopTools_ListOfShape* pL;
//
pL=(TopTools_ListOfShape*) &myLS;
pL->Clear();
//
aNb=myMSS.Extent();
for (i=1; i<=aNb; ++i) {
const TopoDS_Shape& aS=myMSS.FindKey(i);
if (aS.ShapeType()==myShapeType) {
pL->Append(aS);
}
}
return myLS;
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::Perform()
{
myErrorStatus=0;
myWarningStatus=0;
myLS.Clear();
myMSS.Clear();
//
CheckData();
if(myErrorStatus) {
return;
}
//
// Initialize the context
GEOMAlgo_ShapeAlgo::Perform();
//
// 1
ProcessVertices();
if(myErrorStatus) {
return;
}
if (myShapeType==TopAbs_VERTEX) {
return;
}
//
// 2
ProcessEdges();
if(myErrorStatus) {
return;
}
if (myShapeType==TopAbs_EDGE) {
return;
}
//
// 3
ProcessFaces();
if(myErrorStatus) {
return;
}
if (myShapeType==TopAbs_FACE) {
return;
}
//
// 4
ProcessSolids();
//
}
//=======================================================================
//function : ProcessVertices
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::ProcessVertices()
{
myErrorStatus=0;
//
Standard_Boolean bIsConformState;
Standard_Integer i, aNb;
gp_Pnt aP;
TopTools_IndexedMapOfShape aM;
TopAbs_State aSt;
//
TopExp::MapShapes(myShape, TopAbs_VERTEX, aM);
aNb=aM.Extent();
for (i=1; i<=aNb; ++i) {
const TopoDS_Vertex& aV=TopoDS::Vertex(aM(i));
aP=BRep_Tool::Pnt(aV);
//
aSt = GetPointState( aP );
bIsConformState=GEOMAlgo_SurfaceTools::IsConformState(aSt, myState);
//
if (myShapeType==TopAbs_VERTEX){
if (bIsConformState) {
myMSS.Add(aV, aSt);
}
}
else if (bIsConformState || aSt==TopAbs_ON) {
myMSS.Add(aV, aSt);
}
}
}
//=======================================================================
//function : ProcessEdges
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::ProcessEdges()
{
myErrorStatus=0;
//
Standard_Boolean bIsConformState, bIsToBreak;
Standard_Integer i, aNb, iCnt;
TopAbs_State aSt;
TopTools_IndexedMapOfShape aM;
TopExp_Explorer aExp;
GEOMAlgo_ListIteratorOfListOfPnt aIt;
GeomAbs_SurfaceType aType1;
//
aType1=myGAS.GetType();
//
TopExp::MapShapes(myShape, TopAbs_EDGE, aM);
//
bIsConformState=Standard_False;
//
aNb=aM.Extent();
for (i=1; i<=aNb; ++i) {
GEOMAlgo_ListOfPnt aLP;
GEOMAlgo_StateCollector aSC;
//
const TopoDS_Edge& aE=TopoDS::Edge(aM(i));
//
aExp.Init(aE, TopAbs_VERTEX);
for (; aExp.More(); aExp.Next()) {
const TopoDS_Shape& aV=aExp.Current();
//
bIsConformState=myMSS.Contains(aV);
if (!bIsConformState) {
break;// vertex has non-conformed state
}
else {
aSt=myMSS.FindFromKey(aV);
aSC.AppendState(aSt);
}
}
//
if (!bIsConformState) {
continue; // vertex has non-conformed state,skip edge
}
//
if (BRep_Tool::Degenerated(aE)) {
myMSS.Add(aE, aSt);
continue;
}
//
if (myState==GEOMAlgo_ST_ON && aType1==GeomAbs_Sphere) {
Standard_Real aT1, aT2;
Handle(Geom_Curve) aC;
GeomAdaptor_Curve aGAC;
GeomAbs_CurveType aType2;
//
aC=BRep_Tool::Curve(aE, aT1, aT2);
aGAC.Load(aC);
//
aType2=aGAC.GetType();
if (aType2==GeomAbs_Line) {
continue;
}
}
//
InnerPoints(aE, aLP);
if (myErrorStatus) {
return;
}
//
bIsConformState=Standard_True;
aIt.Initialize(aLP);
for (iCnt=0; aIt.More(); aIt.Next(), ++iCnt) {
if (myNbPntsMax) {
if (iCnt > myNbPntsMax) {
break;
}
}
//
const gp_Pnt& aP=aIt.Value();
aSt = GetPointState( aP );
bIsToBreak=aSC.AppendState(aSt);
if (bIsToBreak) {
break;
}
}
//
aSt=aSC.State();
//
bIsConformState=GEOMAlgo_SurfaceTools::IsConformState(aSt, myState);
if (myShapeType==TopAbs_EDGE) {
if (bIsConformState) {
myMSS.Add(aE, aSt);
}
}
else if (bIsConformState || aSt==TopAbs_ON) {
myMSS.Add(aE, aSt);
}
} // for (i=1; i<=aNb; ++i) next edge
}
//=======================================================================
//function : ProcessFaces
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::ProcessFaces()
{
myErrorStatus=0;
//
Standard_Boolean bIsConformState, bIsToBreak;
Standard_Integer i, aNbF, iCnt;
TopAbs_State aSt;
TopTools_IndexedMapOfShape aM;
TopExp_Explorer aExp;
GEOMAlgo_ListIteratorOfListOfPnt aIt;
GeomAbs_SurfaceType aType1, aType2;
//
aType1=myGAS.GetType();
//
TopExp::MapShapes(myShape, TopAbs_FACE, aM);
aNbF=aM.Extent();
for (i=1; i<=aNbF; ++i) {
GEOMAlgo_StateCollector aSC;
GEOMAlgo_ListOfPnt aLP;
//
const TopoDS_Face& aF=TopoDS::Face(aM(i));
//
if (myState==GEOMAlgo_ST_ON) {
Handle(Geom_Surface) aS;
GeomAdaptor_Surface aGAS;
//
aS=BRep_Tool::Surface(aF);
aGAS.Load(aS);
aType2=aGAS.GetType();
if (aType2!=aType1) {
continue;
}
}
//
bIsConformState=Standard_False;
//
aExp.Init(aF, TopAbs_EDGE);
for (; aExp.More(); aExp.Next()) {
const TopoDS_Shape& aE=aExp.Current();
bIsConformState=myMSS.Contains(aE);
if (!bIsConformState) {
break;// edge has non-conformed state
}
else {
aSt=myMSS.FindFromKey(aE);
aSC.AppendState(aSt);
}
}
//
if (!bIsConformState) {
continue; // edge has non-conformed state,skip face
}
//
InnerPoints(aF, aLP);
if (myErrorStatus) {
return;
}
//
bIsConformState=Standard_True;
aIt.Initialize(aLP);
for (iCnt=0; aIt.More(); aIt.Next(), ++iCnt) {
if (myNbPntsMax) {
if (iCnt > myNbPntsMax) {
break;
}
}
//
const gp_Pnt& aP=aIt.Value();
aSt = GetPointState( aP );
bIsToBreak=aSC.AppendState(aSt);
if (bIsToBreak) {
break;
}
}
//
aSt=aSC.State();
//
bIsConformState=GEOMAlgo_SurfaceTools::IsConformState(aSt, myState);
if (myShapeType==TopAbs_FACE) {
if (bIsConformState) {
myMSS.Add(aF, aSt);
}
}
else if (bIsConformState || aSt==TopAbs_ON) {
myMSS.Add(aF, aSt);
}
}// for (i=1; i<=aNb; ++i) next face
}
//=======================================================================
//function : ProcessSolids
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::ProcessSolids()
{
myErrorStatus=0;
//
Standard_Boolean bIsConformState;
Standard_Integer i, aNbS, j, aNbF;
TopTools_IndexedMapOfShape aM, aMF;
TopAbs_State aSt;
//
TopExp::MapShapes(myShape, TopAbs_SOLID, aM);
aNbS=aM.Extent();
for (i=1; i<=aNbS; ++i) {
GEOMAlgo_StateCollector aSC;
//
const TopoDS_Shape& aSd=aM(i);
aMF.Clear();
TopExp::MapShapes(aSd, TopAbs_FACE, aMF);
//
bIsConformState=Standard_False;
//
aNbF=aMF.Extent();
for (j=1; j<=aNbF; ++j) {
const TopoDS_Shape& aF=aMF(j);
bIsConformState=myMSS.Contains(aF);
if (!bIsConformState) {
break;// face has non-conformed state
}
else {
aSt=myMSS.FindFromKey(aF);
aSC.AppendState(aSt);
}
}
//
if (!bIsConformState) {
continue; // face has non-conformed state,skip solid
}
//
aSt=aSC.State();
//
bIsConformState=GEOMAlgo_SurfaceTools::IsConformState(aSt, myState);
if (bIsConformState) {
myMSS.Add(aSd, aSt);
}
}
}
//
//=======================================================================
//function : InnerPoints
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::InnerPoints(const TopoDS_Face& aF,
GEOMAlgo_ListOfPnt& aLP)
{
myErrorStatus=0;
//
Standard_Integer j, j1, j2, k, n[4], aNbLinks, aNx, aNb, iCnt;//, aNbMax, *pIds;
TopLoc_Location aLoc;
Handle(Poly_Triangulation) aTRF;
TColStd_MapOfInteger aMBN;
GEOMAlgo_DataMapOfPassKeyInteger aMPKI;
GEOMAlgo_DataMapIteratorOfDataMapOfPassKeyInteger aIt;
gp_Pnt aP, aP1, aP2;
//
aLP.Clear();
//
aTRF=BRep_Tool::Triangulation(aF, aLoc);
if (aTRF.IsNull()) {
if (!GEOMAlgo_AlgoTools::BuildTriangulation(aF)) {
myWarningStatus=20; // no triangulation found
return;
}
aTRF=BRep_Tool::Triangulation(aF, aLoc);
}
//
const gp_Trsf& aTrsf=aLoc.Transformation();
const Poly_Array1OfTriangle& aTrs=aTRF->Triangles();
const TColgp_Array1OfPnt& aNodes=aTRF->Nodes();
//
// map link/nbtriangles
j1=aTrs.Lower();
j2=aTrs.Upper();
for (j=j1; j<=j2; ++j) {
const Poly_Triangle& aTr=aTrs(j);
aTr.Get(n[0], n[1], n[2]);
n[3]=n[0];
for (k=0; k<3; ++k) {
GEOMAlgo_PassKey aPK;
//
aPK.SetIds(n[k], n[k+1]);
if (aMPKI.IsBound(aPK)) {
Standard_Integer& iCntX=aMPKI.ChangeFind(aPK);
++iCntX;
}
else {
aMPKI.Bind(aPK, 1);
}
}
}
//
// boundary nodes aMBN
aNbLinks=aMPKI.Extent();
aIt.Initialize(aMPKI);
for (; aIt.More(); aIt.Next()) {
iCnt=aIt.Value();
if (iCnt==1) {
const GEOMAlgo_PassKey& aPK=aIt.Key();
//
aNx=(Standard_Integer)aPK.Id(1);
aMBN.Add(aNx);
aNx=(Standard_Integer)aPK.Id(2);
aMBN.Add(aNx);
}
}
//
// inner nodes=all_nodes - boundary_nodes
j1=aNodes.Lower();
j2=aNodes.Upper();
for (j=j1; j<=j2; ++j) {
if (!aMBN.Contains(j)) {
aP=aNodes(j).Transformed(aTrsf);
aLP.Append(aP);
}
}
//
aNb=aLP.Extent();
//
if (!aNb && myNbPntsMin) {
// try to fill it yourself
Standard_Boolean bIsDone;
Standard_Integer aN1, aN2;
Handle(Geom_Surface) aS;
GeomAdaptor_Surface aGAS;
GeomAbs_SurfaceType aType;
//
aS=BRep_Tool::Surface(aF);
aGAS.Load(aS);
aType=aGAS.GetType();
if (aType==GeomAbs_Plane || aType==GeomAbs_Cylinder) {
// inner links
aNbLinks=aMPKI.Extent();
aIt.Initialize(aMPKI);
for (; aIt.More(); aIt.Next()) {
iCnt=aIt.Value();
if (iCnt>1) {
// take the first having occurred inner link
// and discretize it
const GEOMAlgo_PassKey& aPK=aIt.Key();
//
aN1=(Standard_Integer)aPK.Id(1);
aN2=(Standard_Integer)aPK.Id(2);
//
aP1=aNodes(aN1).Transformed(aTrsf);
aP2=aNodes(aN2).Transformed(aTrsf);
//
if (aType==GeomAbs_Cylinder) {
gp_Cylinder aCyl;
//
aCyl=aGAS.Cylinder();
if (!GEOMAlgo_SurfaceTools::IsCoaxial(aP1, aP2, aCyl, myTolerance)) {
continue;
}
}
//
BRepLib_MakeEdge aBME(aP1, aP2);
bIsDone=aBME.IsDone();
if (!bIsDone) {
myErrorStatus=30; //can not obtain the line from the link
return;
}
//
const TopoDS_Shape& aSx=aBME.Shape();
const TopoDS_Edge& aE=TopoDS::Edge(aSx);
//
InnerPoints(aE, myNbPntsMin, aLP);
break;
}// if (iCnt>1)
}// for (; aIt.More(); aIt.Next())
}// if (aType==GeomAbs_Plane || aType==GeomAbs_Cylinder)
}// if (!aNb && myNbPntsMin) {
}
//=======================================================================
//function : InnerPoints
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::InnerPoints(const TopoDS_Edge& aE,
GEOMAlgo_ListOfPnt& aLP)
{
Standard_Integer aNbPntsMin;
//
myErrorStatus=0;
aNbPntsMin=21;
//
aLP.Clear();
InnerPoints(aE, aNbPntsMin, aLP);
}
//=======================================================================
//function : InnerPoints
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::InnerPoints(const TopoDS_Edge& aE,
const Standard_Integer aNbPntsMin,
GEOMAlgo_ListOfPnt& aLP)
{
Standard_Boolean bInf1, bInf2;
Standard_Integer j, aNbT;
Standard_Real dT, aT, aT1, aT2;
gp_Pnt aP;
Handle(Geom_Curve) aC3D;
//
aC3D=BRep_Tool::Curve(aE, aT1, aT2);
if (aC3D.IsNull()) {
return;
}
//
bInf1=Precision::IsNegativeInfinite(aT1);
bInf2=Precision::IsPositiveInfinite(aT2);
if (bInf1 || bInf2) {
return;
}
//
aNbT=aNbPntsMin+1;
dT=(aT2-aT1)/aNbT;
for (j=1; j<aNbT; ++j) {
aT=aT1+j*dT;
aC3D->D0(aT, aP);
aLP.Append(aP);
}
}
//=======================================================================
//function : CheckData
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOn1::CheckData()
{
myErrorStatus=0;
//
if(mySurface.IsNull()) {
myErrorStatus=10; // mySurface=NULL
return;
}
//
if (myShape.IsNull()) {
myErrorStatus=11; // myShape=NULL
return;
}
//
if (!(myShapeType==TopAbs_VERTEX ||
myShapeType==TopAbs_EDGE ||
myShapeType==TopAbs_FACE ||
myShapeType==TopAbs_SOLID)) {
myErrorStatus=12; // unallowed subshape type
return;
}
//
if (myState==GEOMAlgo_ST_UNKNOWN ||
myState==GEOMAlgo_ST_INOUT) {
myErrorStatus=13; // unallowed state type
return;
}
//
GeomAbs_SurfaceType aType;
//
myGAS.Load(mySurface);
aType=myGAS.GetType();
if (!(aType==GeomAbs_Plane ||
aType==GeomAbs_Cylinder ||
aType==GeomAbs_Sphere)) {
myErrorStatus=14; // unallowed surface type
}
}
//=======================================================================
//function : GetPointState
//purpose :
//=======================================================================
TopAbs_State GEOMAlgo_FinderShapeOn1::GetPointState(const gp_Pnt& aP)
{
TopAbs_State aSt;
GEOMAlgo_SurfaceTools::GetState(aP, myGAS, myTolerance, aSt);
return aSt;
}
//
// myErrorStatus :
//
// 10 -mySurface=NULL
// 11 -myShape=NULL
// 12 -unallowed type of subshapes
// 13 -unallowed state
// 14 -unallowed surface type
// 15 -unallowed surface type
// 20- no triangulation found
// 30- can not obtain the line from the link

145
src/GEOMAlgo/GEOMAlgo_FinderShapeOn1.hxx
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@ -1,145 +0,0 @@
// Copyright (C) 2007-2024 CEA, EDF, 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: GEOMAlgo_FinderShapeOn1.hxx
// Created: Fri Mar 4 10:31:06 2005
// Author: Peter KURNEV
#ifndef _GEOMAlgo_FinderShapeOn1_HeaderFile
#define _GEOMAlgo_FinderShapeOn1_HeaderFile
#include <GEOMAlgo_State.hxx>
#include <GEOMAlgo_IndexedDataMapOfShapeState.hxx>
#include <GEOMAlgo_ShapeAlgo.hxx>
#include <GEOMAlgo_ListOfPnt.hxx>
#include <TopAbs_State.hxx>
#include <TopAbs_ShapeEnum.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Edge.hxx>
#include <TopTools_ListOfShape.hxx>
#include <Geom_Surface.hxx>
#include <GeomAdaptor_Surface.hxx>
#include <gp_Pnt.hxx>
#include <Standard.hxx>
#include <Standard_Macro.hxx>
#include <Standard_Integer.hxx>
//=======================================================================
//function : GEOMAlgo_FinderShapeOn1
//purpose :
//=======================================================================
class GEOMAlgo_FinderShapeOn1 : public GEOMAlgo_ShapeAlgo
{
public:
Standard_EXPORT
GEOMAlgo_FinderShapeOn1();
Standard_EXPORT
virtual ~GEOMAlgo_FinderShapeOn1();
Standard_EXPORT
void SetSurface(const Handle(Geom_Surface)& aS) ;
Standard_EXPORT
void SetShapeType(const TopAbs_ShapeEnum aST) ;
Standard_EXPORT
void SetState(const GEOMAlgo_State aSF) ;
Standard_EXPORT
void SetNbPntsMin(const Standard_Integer aNb) ;
Standard_EXPORT
Standard_Integer NbPntsMin() const;
Standard_EXPORT
void SetNbPntsMax(const Standard_Integer aNb) ;
Standard_EXPORT
Standard_Integer NbPntsMax() const;
Standard_EXPORT
const Handle(Geom_Surface)& Surface() const;
Standard_EXPORT
TopAbs_ShapeEnum ShapeType() const;
Standard_EXPORT
GEOMAlgo_State State() const;
Standard_EXPORT
virtual void Perform() ;
Standard_EXPORT
const TopTools_ListOfShape& Shapes() const;
Standard_EXPORT
const GEOMAlgo_IndexedDataMapOfShapeState& MSS() const;
protected:
Standard_EXPORT
virtual void CheckData() ;
Standard_EXPORT
void ProcessVertices() ;
Standard_EXPORT
void ProcessEdges() ;
Standard_EXPORT
void ProcessFaces() ;
Standard_EXPORT
void ProcessSolids() ;
Standard_EXPORT
void InnerPoints(const TopoDS_Face& aF,
GEOMAlgo_ListOfPnt& aLP) ;
Standard_EXPORT
void InnerPoints(const TopoDS_Edge& aE,
GEOMAlgo_ListOfPnt& aLP) ;
Standard_EXPORT
void InnerPoints(const TopoDS_Edge& aE,
const Standard_Integer aNbPnts,
GEOMAlgo_ListOfPnt& aLP) ;
Standard_EXPORT
virtual TopAbs_State GetPointState(const gp_Pnt& aP) ;
Handle(Geom_Surface) mySurface;
TopAbs_ShapeEnum myShapeType;
GEOMAlgo_State myState;
Standard_Integer myNbPntsMin;
Standard_Integer myNbPntsMax;
GeomAdaptor_Surface myGAS;
TopTools_ListOfShape myLS;
GEOMAlgo_IndexedDataMapOfShapeState myMSS;
};
#endif

75
src/GEOMAlgo/GEOMAlgo_FinderShapeOn2.cxx
View File

@ -33,6 +33,8 @@
#include <GEOMAlgo_StateCollector.hxx>
#include <GEOMAlgo_SurfaceTools.hxx>
#include <GEOMUtils.hxx>
#include <Bnd_Box.hxx>
#include <BRep_Tool.hxx>
#include <BRepBndLib.hxx>
@ -606,14 +608,13 @@ void GEOMAlgo_FinderShapeOn2::InnerPoints(const TopoDS_Face& aF,
//
aLP.Clear();
//
aTRF=BRep_Tool::Triangulation(aF, aLoc);
if (aTRF.IsNull()) {
if (!BuildTriangulation(aF)) {
if (!GEOMUtils::MeshShape(aF, /*deflection*/0.001, /*forced*/false,
/*angle deflection*/0.349066, /*isRelative*/true,
/*doPostCheck*/true)) {
myWarningStatus=20; // no triangulation found
return;
}
aTRF=BRep_Tool::Triangulation(aF, aLoc);
}
//
const gp_Trsf& aTrsf=aLoc.Transformation();
//
@ -745,16 +746,15 @@ void GEOMAlgo_FinderShapeOn2::InnerPoints(const TopoDS_Edge& aE,
gp_Pnt aP;
//
aLP.Clear();
BRep_Tool::PolygonOnTriangulation(aE, aPTE, aTRE, aLoc);
if (aTRE.IsNull() || aPTE.IsNull()) {
Handle(Poly_Polygon3D) aPE = BRep_Tool::Polygon3D(aE, aLoc);
if (aPE.IsNull()) {
if (!BuildTriangulation(aE)) {
if (!GEOMUtils::MeshShape(aE, /*deflection*/0.001, /*forced*/false,
/*angle deflection*/0.349066, /*isRelative*/true,
/*doPostCheck*/true)) {
myErrorStatus=20; // no triangulation found
return;
}
aPE = BRep_Tool::Polygon3D(aE, aLoc);
}
BRep_Tool::PolygonOnTriangulation(aE, aPTE, aTRE, aLoc);
if (aTRE.IsNull() || aPTE.IsNull()) {
Handle(Poly_Polygon3D) aPE = BRep_Tool::Polygon3D(aE, aLoc);
const gp_Trsf& aTrsf=aLoc.Transformation();
const TColgp_Array1OfPnt& aNodes=aPE->Nodes();
//
@ -819,59 +819,6 @@ void GEOMAlgo_FinderShapeOn2::InnerPoints(const TopoDS_Edge& aE,
}
}
//=======================================================================
//function : BuildTriangulation
//purpose :
//=======================================================================
Standard_Boolean
GEOMAlgo_FinderShapeOn2::BuildTriangulation (const TopoDS_Shape& theShape)
{
// calculate deflection
Standard_Real aDeviationCoefficient = 0.001;
Bnd_Box B;
BRepBndLib::Add(theShape, B);
Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
B.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
Standard_Real dx = aXmax - aXmin, dy = aYmax - aYmin, dz = aZmax - aZmin;
Standard_Real aDeflection = Max(Max(dx, dy), dz) * aDeviationCoefficient * 4;
Standard_Real aHLRAngle = 0.349066;
// build triangulation
BRepMesh_IncrementalMesh Inc (theShape, aDeflection, Standard_False, aHLRAngle);
// check triangulation
bool isTriangulation = true;
TopExp_Explorer exp (theShape, TopAbs_FACE);
if (exp.More())
{
TopLoc_Location aTopLoc;
Handle(Poly_Triangulation) aTRF;
aTRF = BRep_Tool::Triangulation(TopoDS::Face(exp.Current()), aTopLoc);
if (aTRF.IsNull()) {
isTriangulation = false;
}
}
else // no faces, try edges
{
TopExp_Explorer expe (theShape, TopAbs_EDGE);
if (!expe.More()) {
isTriangulation = false;
}
else {
TopLoc_Location aLoc;
Handle(Poly_Polygon3D) aPE = BRep_Tool::Polygon3D(TopoDS::Edge(expe.Current()), aLoc);
if (aPE.IsNull()) {
isTriangulation = false;
}
}
}
return isTriangulation;
}
//
// myErrorStatus :
//

3
src/GEOMAlgo/GEOMAlgo_FinderShapeOn2.hxx
View File

@ -126,9 +126,6 @@ protected:
const Standard_Integer aNbPnts,
GEOMAlgo_ListOfPnt& aLP) ;
Standard_EXPORT
Standard_Boolean BuildTriangulation(const TopoDS_Shape& aS) ;
TopAbs_ShapeEnum myShapeType;
GEOMAlgo_State myState;

144
src/GEOMAlgo/GEOMAlgo_FinderShapeOnQuad.cxx
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@ -1,144 +0,0 @@
// Copyright (C) 2007-2024 CEA, EDF, 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 : GEOMAlgo_FinderShapeOnQuad.cxx
// Created : Mon Oct 17 17:31:45 2005
// Author : Edward AGAPOV (eap)
//
#include "GEOMAlgo_FinderShapeOnQuad.hxx"
#include "GEOMAlgo_SurfaceTools.hxx"
#include <gp_Pnt.hxx>
#include <gp_Vec.hxx>
#include <Geom_Plane.hxx>
GEOMAlgo_FinderShapeOnQuad::GEOMAlgo_FinderShapeOnQuad(const gp_Pnt & theTopLeftPoint,
const gp_Pnt & theTopRightPoint,
const gp_Pnt & theBottomLeftPoint,
const gp_Pnt & theBottomRightPoint)
{
myPoints.resize(6);
myPoints[0] = theTopLeftPoint ;
myPoints[1] = theTopRightPoint ;
myPoints[2] = theBottomRightPoint;
myPoints[3] = theBottomLeftPoint ;
myPoints[4] = myPoints[0];
myPoints[5] = myPoints[1];
// Find plane normal defined by corner points, it will be used to define a plane
// for each quadrangle side.
myQuadNormal.SetCoord (0,0,0);
for ( int i = 1; i <= 4; ++i )
myQuadNormal += gp_Vec( myPoints[i], myPoints[i+1] ) ^ gp_Vec( myPoints[i], myPoints[i-1] );
//std::cout<<std::endl<<" X Vec : "<<myQuadNormal.X()<<" "<<myQuadNormal.Y()<<" "<<myQuadNormal.Z()<<" "<<endl;
if ( myQuadNormal.SquareMagnitude() <= DBL_MIN ) {
myErrorStatus = 101;
return;
}
// detect concave quadrangle sides
myConcaveQuad = false;
myConcaveSide.resize (4, false);
for ( int i = 1; i <= 4; ++i ) {
gp_Vec localQN = gp_Vec( myPoints[i], myPoints[i+1] ) ^ gp_Vec( myPoints[i], myPoints[i-1] );
if ( myQuadNormal * localQN < 0 )
myConcaveSide[i-1] = myConcaveSide[i] = myConcaveQuad = true;
}
// loop on quadrangle sides
myPlanes.reserve( 4 );
for ( int i = 0; i < 4; ++i )
{
// point1 -> point2 vector
gp_Vec aSideVec( myPoints[ i ], myPoints[ i + 1 ]);
//std::cout<<" Y Vec : "<<aSideVec.X()<<" "<<aSideVec.Y()<<" "<<aSideVec.Z()<<" "<<endl;
// plane normal
gp_Vec aSideNorm = aSideVec ^ myQuadNormal;
if ( aSideNorm.SquareMagnitude() <= DBL_MIN )
continue;
//std::cout<<" Z Vec : "<<aSideNorm.X()<<" "<<aSideNorm.Y()<<" "<<aSideNorm.Z()<<" "<<endl;
// make plane
Handle(Geom_Plane) aPlane = new Geom_Plane( myPoints[ i ], aSideNorm );
myPlanes.push_back( GeomAdaptor_Surface() );
myPlanes.back().Load( aPlane );
}
}
//=======================================================================
//function : CheckData
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOnQuad::CheckData()
{
if ( !myPlanes.empty() )
mySurface = myPlanes[0].Surface();
GEOMAlgo_FinderShapeOn1::CheckData();
}
//=======================================================================
//function : GetPointState
//purpose :
//=======================================================================
TopAbs_State GEOMAlgo_FinderShapeOnQuad::GetPointState(const gp_Pnt& aP)
{
// Return IN if aP has TopAbs_IN with all sides.
// In the case of concave quadrangle, return IN if
// aP is OUT of only one concave side
double nbIn = 0.;
for ( size_t i = 0; i < myPlanes.size(); ++i )
{
TopAbs_State aSt;
GEOMAlgo_SurfaceTools::GetState(aP, myPlanes[i], myTolerance, aSt);
if ( aSt == TopAbs_IN )
{
nbIn += myConcaveSide[i] ? 0.5 : 1.0;
}
else if ( aSt == TopAbs_ON )
{
// check that aP is between quadrangle corners
Handle(Geom_Plane) aSidePlane = Handle(Geom_Plane)::DownCast( myPlanes[i].Surface() );
gp_Vec aSideNorm = aSidePlane->Axis().Direction();
gp_Vec aSideVec = myQuadNormal ^ aSideNorm;
gp_Vec c1p ( myPoints[i], aP );
gp_Vec pc2 ( aP, myPoints[i+1] );
if ( aSideVec * c1p >= 0. && aSideVec * pc2 >= 0. )
return TopAbs_ON;
// consider to be IN (???????????)
//nbIn += myConcaveSide[i] ? 0.5 : 1.0;
}
}
Standard_Real inThreshold = myPlanes.size(); // usually 4.0
if ( myConcaveQuad )
inThreshold = 2.5; // 1.0 + 1.0 + 0.5
if ( nbIn >= inThreshold )
return TopAbs_IN;
return TopAbs_OUT;
}

61
src/GEOMAlgo/GEOMAlgo_FinderShapeOnQuad.hxx
View File

@ -1,61 +0,0 @@
// Copyright (C) 2007-2024 CEA, EDF, 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 : GEOMAlgo_FinderShapeOnQuad.hxx
// Created : Mon Oct 17 17:15:59 2005
// Author : Edward AGAPOV (eap)
//
#ifndef GEOMAlgo_FinderShapeOnQuad_HeaderFile
#define GEOMAlgo_FinderShapeOnQuad_HeaderFile
#include "GEOMAlgo_FinderShapeOn1.hxx"
#include <gp_Vec.hxx>
#include <vector>
class GEOMAlgo_FinderShapeOnQuad: public GEOMAlgo_FinderShapeOn1
{
public:
Standard_EXPORT
GEOMAlgo_FinderShapeOnQuad(const gp_Pnt & theTopLeftPoint,
const gp_Pnt & theTopRightPoint,
const gp_Pnt & theBottomLeftPoint,
const gp_Pnt & theBottomRightPoint);
protected:
virtual void CheckData() ;
virtual TopAbs_State GetPointState(const gp_Pnt& aP) ;
private:
bool myConcaveQuad;
std::vector<bool> myConcaveSide;
std::vector<gp_Pnt> myPoints;
std::vector<GeomAdaptor_Surface> myPlanes;
gp_Vec myQuadNormal;
};
#endif

13
src/GEOMGUI/GeometryGUI.cxx
View File

@ -24,21 +24,8 @@
#include <Basics_OCCTVersion.hxx>
#if OCC_VERSION_LARGE < 0x07080000
#include <Standard_Real.hxx> // E.A. must be included before Python.h to fix compilation on windows
#else
#ifdef _MSC_VER
#ifndef _USE_MATH_DEFINES
#define _USE_MATH_DEFINES
#endif
#include <math.h>
#endif
#endif
#ifdef HAVE_FINITE
#undef HAVE_FINITE // VSR: avoid compilation warning on Linux : "HAVE_FINITE" redefined
#endif

24
src/GEOMImpl/GEOMImpl_ITestOperations.cxx
View File

@ -22,11 +22,10 @@
#include <GEOMImpl_ITestOperations.hxx>
#include <BRepBndLib.hxx>
#include <GEOMUtils.hxx>
#include <BRepBuilderAPI_Copy.hxx>
#include <BRepMesh_IncrementalMesh.hxx>
#include <BRepTools.hxx>
#include <Bnd_Box.hxx>
#include <utilities.h>
#ifndef MAX2
@ -83,25 +82,22 @@ bool GEOMImpl_ITestOperations::Tesselate(Handle(GEOM_Object) theShape,
// reset error code
SetErrorCode(KO);
// create a copy of the source shape
TopoDS_Shape aShape = BRepBuilderAPI_Copy(theShape->GetValue()).Shape();
// use default deflection if necessary
if (theLinearDeflection <= 0)
theLinearDeflection = 0.001;
// compute absolute deflection if necessary: 0.001
if (theIsRelative) {
Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
Bnd_Box bndBox;
BRepBndLib::Add(aShape, bndBox);
bndBox.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
theLinearDeflection = MAX3(aXmax-aXmin, aYmax-aYmin, aZmax-aZmin) * theLinearDeflection * 4;
}
// use default deviation angle if necessary: 20 degrees
if (theAngularDeflection <= 0)
theAngularDeflection = 20. * M_PI / 180.;
// compute triangulation
BRepTools::Clean(aShape);
BRepMesh_IncrementalMesh aMesh(aShape, theLinearDeflection, Standard_False, theAngularDeflection);
GEOMUtils::MeshShape(aShape, theLinearDeflection, /*theForced*/ true,
theAngularDeflection, theIsRelative);
// set OK status and return
SetErrorCode(OK);
return true;

28
src/GEOMImpl/GEOMImpl_ShapeProximityDriver.cxx
View File

@ -21,6 +21,8 @@
#include <GEOMImpl_IProximity.hxx>
#include <GEOMImpl_Types.hxx>
#include <GEOMUtils.hxx>
#include <BRep_Tool.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <BRepAdaptor_Surface.hxx>
@ -37,28 +39,6 @@
#include <TopoDS.hxx>
namespace {
static void tessellateShape(const TopoDS_Shape& theShape)
{
Standard_Boolean isTessellate = Standard_False;
TopLoc_Location aLoc;
for (TopExp_Explorer anExp(theShape, TopAbs_FACE); anExp.More() && !isTessellate; anExp.Next())
{
Handle(Poly_Triangulation) aTria = BRep_Tool::Triangulation(TopoDS::Face(anExp.Value()), aLoc);
isTessellate = aTria.IsNull();
}
for (TopExp_Explorer anExp(theShape, TopAbs_EDGE); anExp.More() && !isTessellate; anExp.Next())
{
Handle(Poly_Polygon3D) aPoly = BRep_Tool::Polygon3D(TopoDS::Edge(anExp.Value()), aLoc);
isTessellate = aPoly.IsNull();
}
if (isTessellate)
{
BRepMesh_IncrementalMesh aMesher(theShape, 0.1);
Standard_ProgramError_Raise_if(!aMesher.IsDone(), "Meshing failed");
}
}
static Standard_Real paramOnCurve(const BRepAdaptor_Curve& theCurve, const gp_Pnt& thePoint, const Standard_Real theTol)
{
Extrema_ExtPC aParamSearch(thePoint, theCurve, theCurve.FirstParameter(), theCurve.LastParameter());
@ -293,8 +273,8 @@ Standard_Integer GEOMImpl_ShapeProximityDriver::Execute(Handle(TFunction_Logbook
if (aFunction->GetType() == PROXIMITY_COARSE)
{
// tessellate shapes if there is no mesh exists
tessellateShape(aShape1);
tessellateShape(aShape2);
GEOMUtils::MeshShape(aShape1, 0.1, /*theForced*/false, 0.5, /*isRelative*/false);
GEOMUtils::MeshShape(aShape2, 0.1, /*theForced*/false, 0.5, /*isRelative*/false);
// compute proximity basing on the tessellation
BRepExtrema_ShapeProximity aCalcProx;

188
src/GEOMUtils/GEOMUtils.cxx
View File

@ -93,6 +93,8 @@
#include <ProjLib.hxx>
#include <ElSLib.hxx>
#include <Prs3d.hxx>
#include <vector>
#include <sstream>
#include <algorithm>
@ -677,56 +679,6 @@ void GEOMUtils::AddSimpleShapes (const TopoDS_Shape& theShape, TopTools_ListOfSh
}
}
//=======================================================================
//function : CheckTriangulation
//purpose :
//=======================================================================
bool GEOMUtils::CheckTriangulation (const TopoDS_Shape& aShape)
{
bool isTriangulation = true;
TopExp_Explorer exp (aShape, TopAbs_FACE);
if (exp.More())
{
TopLoc_Location aTopLoc;
Handle(Poly_Triangulation) aTRF;
aTRF = BRep_Tool::Triangulation(TopoDS::Face(exp.Current()), aTopLoc);
if (aTRF.IsNull()) {
isTriangulation = false;
}
}
else // no faces, try edges
{
TopExp_Explorer expe (aShape, TopAbs_EDGE);
if (!expe.More()) {
return false;
}
TopLoc_Location aLoc;
Handle(Poly_Polygon3D) aPE = BRep_Tool::Polygon3D(TopoDS::Edge(expe.Current()), aLoc);
if (aPE.IsNull()) {
isTriangulation = false;
}
}
if (!isTriangulation) {
// calculate deflection
Standard_Real aDeviationCoefficient = 0.001;
Bnd_Box B;
BRepBndLib::Add(aShape, B);
Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
B.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
Standard_Real dx = aXmax - aXmin, dy = aYmax - aYmin, dz = aZmax - aZmin;
Standard_Real aDeflection = Max(Max(dx, dy), dz) * aDeviationCoefficient * 4;
Standard_Real aHLRAngle = 0.349066;
BRepMesh_IncrementalMesh Inc (aShape, aDeflection, Standard_False, aHLRAngle);
}
return true;
}
//=======================================================================
//function : GetTypeOfSimplePart
//purpose :
@ -1286,46 +1238,112 @@ TopoDS_Shape GEOMUtils::ReduceCompound( const TopoDS_Shape& shape )
return result;
}
void GEOMUtils::MeshShape( const TopoDS_Shape shape,
double deflection, bool theForced )
{
Standard_Real aDeflection = ( deflection <= 0 ) ? DefaultDeflection() : deflection;
// Is shape triangulated?
Standard_Boolean alreadyMeshed = true;
TopExp_Explorer ex;
TopLoc_Location aLoc;
for ( ex.Init( shape, TopAbs_FACE ); ex.More() && alreadyMeshed; ex.Next() ) {
const TopoDS_Face& aFace = TopoDS::Face( ex.Current() );
Handle(Poly_Triangulation) aPoly = BRep_Tool::Triangulation( aFace, aLoc );
alreadyMeshed = !aPoly.IsNull();
}
if ( !alreadyMeshed || theForced ) {
// Compute bounding box
Bnd_Box B;
BRepBndLib::Add( shape, B );
if ( B.IsVoid() )
return; // NPAL15983 (Bug when displaying empty groups)
Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
B.Get( aXmin, aYmin, aZmin, aXmax, aYmax, aZmax );
// This magic line comes from Prs3d_ShadedShape.gxx in OCCT
aDeflection = MAX3(aXmax-aXmin, aYmax-aYmin, aZmax-aZmin) * aDeflection * 4;
// Clean triangulation before compute incremental mesh
BRepTools::Clean( shape );
// Compute triangulation
BRepMesh_IncrementalMesh mesh( shape, aDeflection );
}
}
//=======================================================================
//function : DefaultDeflection
//purpose :
//=======================================================================
double GEOMUtils::DefaultDeflection()
{
return 0.001;
}
//=======================================================================
//function : CanBeMeshed
//purpose :
//=======================================================================
static bool GEOMUtils_CanBeMeshed (const TopoDS_Shape& theShape,
const bool theCheckMesh,
bool& theHasMesh)
{
// Is shape triangulated?
theHasMesh = true;
TopExp_Explorer ex (theShape, TopAbs_FACE);
TopLoc_Location aLoc;
if (ex.More()) {
if (theCheckMesh) {
for ( ; ex.More() && theHasMesh; ex.Next() ) {
const TopoDS_Face& aFace = TopoDS::Face( ex.Current() );
Handle(Poly_Triangulation) aPoly = BRep_Tool::Triangulation( aFace, aLoc );
theHasMesh = !aPoly.IsNull();
}
}
}
else { // no faces, try edges
ex.Init(theShape, TopAbs_EDGE);
if (!ex.More()) {
return false; // nothing to mesh
}
if (theCheckMesh) {
for ( ; ex.More() && theHasMesh; ex.Next() ) {
Handle(Poly_Polygon3D) aPE = BRep_Tool::Polygon3D(TopoDS::Edge(ex.Current()), aLoc);
theHasMesh = !aPE.IsNull();
}
}
}
return true;
}
//=======================================================================
//function : MeshShape
//purpose :
//=======================================================================
bool GEOMUtils::MeshShape( const TopoDS_Shape theShape,
const double theDeflection,
const bool theForced,
const double theAngleDeflection,
const bool isRelative,
const bool doPostCheck)
{
Standard_Real aDeflection = (theDeflection <= 0) ? DefaultDeflection() : theDeflection;
// Is shape triangulated?
bool alreadyMeshed = true;
if (!GEOMUtils_CanBeMeshed (theShape, /*theCheckMesh*/true, alreadyMeshed))
return false;
if (alreadyMeshed && !theForced)
return true;
if (isRelative) {
// Compute bounding box
Bnd_Box B;
BRepBndLib::Add(theShape, B);
if (B.IsVoid())
return false; // NPAL15983 (Bug when displaying empty groups)
Standard_Real aDeviationCoeff = aDeflection;
Standard_Real aMaxChordialDeviation = aDeflection;
aDeflection = Prs3d::GetDeflection(B, aDeviationCoeff, aMaxChordialDeviation);
}
// Clean triangulation before compute incremental mesh
BRepTools::Clean(theShape);
// Compute triangulation
BRepMesh_IncrementalMesh mesh (theShape, aDeflection, Standard_False, theAngleDeflection);
if (!doPostCheck)
return true;
if (!mesh.IsDone())
return false;
GEOMUtils_CanBeMeshed(theShape, /*theCheckMesh*/true, alreadyMeshed);
return alreadyMeshed;
}
//=======================================================================
//function : CheckTriangulation
//purpose :
//=======================================================================
bool GEOMUtils::CheckTriangulation (const TopoDS_Shape& theShape)
{
Standard_Real aHLRAngle = 0.349066;
return MeshShape(theShape, DefaultDeflection(), false, aHLRAngle);
}
//=======================================================================
//function : IsOpenPath
//purpose :

45
src/GEOMUtils/GEOMUtils.hxx
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@ -155,13 +155,6 @@ namespace GEOMUtils
Standard_EXPORT void AddSimpleShapes (const TopoDS_Shape& theShape,
TopTools_ListOfShape& theList);
/*!
* \brief Build a triangulation on \a theShape if it is absent.
* \param theShape The shape to check/build triangulation on.
* \retval bool Returns false if the shape has no faces, i.e. impossible to build triangulation.
*/
Standard_EXPORT bool CheckTriangulation (const TopoDS_Shape& theShape);
/*!
* \brief Return type of shape for explode. In case of compound it will be a type of its first sub shape.
* \param theShape The shape to get type of.
@ -347,22 +340,40 @@ namespace GEOMUtils
*/
Standard_EXPORT TopoDS_Shape ReduceCompound( const TopoDS_Shape& shape );
/*!
* \brief Generate triangulation for the shape.
*
* \param shape shape being meshed
* \param deflection deflection coefficient to be used
* \param forced if \c true, causes generation of mesh regardless it is already present in the shape
*/
Standard_EXPORT void MeshShape( const TopoDS_Shape shape,
double deflection, bool forced = true );
/*!
* \brief Get default deflection coefficient used for triangulation
* \return default deflection value
*/
Standard_EXPORT double DefaultDeflection();
/*!
* \brief Generate triangulation for \a theShape.
*
* \param theShape shape to be meshed.
* \param theDeflection deflection coefficient to be used.
* \param theForced if \c true, causes generation of mesh regardless it is already present in the shape.
* \param theAngleDeflection angular deflection coefficient to be used.
* \param isRelative if true, \a theDeflection is considered relative to \a theShape maximum axial dimension.
* \param doPostCheck if true, check mesh generation result and return corresponding boolean value.
* \retval bool Returns false in the following cases:
* 1. The shape has neither faces nor edges, i.e. impossible to build triangulation or polygon.
* 2. \a theForced is false and \a theShape has no mesh or has incomplete mesh.
* 3. \a doPostCheck is true and mesh generation failed or produced an incomplete mesh.
*/
Standard_EXPORT bool MeshShape( const TopoDS_Shape theShape,
const double theDeflection = DefaultDeflection(),
const bool theForced = true,
const double theAngleDeflection = 0.5,
const bool isRelative = true,
const bool doPostCheck = false);
/*!
* \brief Build a triangulation on \a theShape if it is absent.
* \param theShape The shape to check/build triangulation on.
* \retval bool Returns false if the shape has no faces, i.e. impossible to build triangulation.
*/
Standard_EXPORT bool CheckTriangulation (const TopoDS_Shape& theShape);
/**
* \brief Check if the shape is not a closed wire or edge.
*

1
src/OCC2VTK/OCC2VTK_Tools.cxx
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@ -30,7 +30,6 @@
#include <BRepTools.hxx>
#include <BRepBndLib.hxx>
#include <BRepMesh_IncrementalMesh.hxx>
#include <Poly_Triangulation.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS.hxx>

1
src/STLPlugin/STLPlugin_ExportDriver.cxx
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@ -102,6 +102,7 @@ Standard_Integer STLPlugin_ExportDriver::Execute(Handle(TFunction_Logbook)& log)
BRepBndLib::Add( aShape, bndBox );
bndBox.Get( aXmin, aYmin, aZmin, aXmax, aYmax, aZmax );
aDeflection = MAX3( aXmax-aXmin, aYmax-aYmin, aZmax-aZmin ) * aDeflection;
aDeflection = MAX2( aDeflection, Precision::Confusion() );
}
//Compute triangulation
BRepTools::Clean( aCopyShape );