Open CASCADE学习|分割

目录

1、添加头文件与源文件

GEOMAlgo_Splitter.h

GEOMAlgo_Splitter.cpp

2、测试

2.1平面分割立方体

2.2以边分面

2.3以面分面

1、添加头文件与源文件

GEOMAlgo_Splitter.h

// Copyright (C) 2007-2019  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:   GEOMAlgo_Splitter.hxx////  Author: Peter KURNEV​#ifndef GEOMAlgo_Splitter_HeaderFile#define GEOMAlgo_Splitter_HeaderFile​#include <Standard.hxx>#include <Standard_Macro.hxx>#include <Standard_Boolean.hxx>#include <Standard_Integer.hxx>​#include <NCollection_BaseAllocator.hxx>​#include <TopAbs_ShapeEnum.hxx>​#include <TopoDS_Shape.hxx>​#include <TopTools_ListOfShape.hxx>#include <TopTools_MapOfShape.hxx>​#include <BOPAlgo_Builder.hxx>​//=======================================================================//class    : GEOMAlgo_Splitter//purpose  ://=======================================================================class GEOMAlgo_Splitter : public BOPAlgo_Builder{public:​    Standard_EXPORT        GEOMAlgo_Splitter();​    Standard_EXPORT        GEOMAlgo_Splitter(const Handle(NCollection_BaseAllocator)& theAllocator);​    Standard_EXPORT        virtual ~GEOMAlgo_Splitter();​    Standard_EXPORT        void AddTool(const TopoDS_Shape& theShape);​    Standard_EXPORT        const TopTools_ListOfShape& Tools()const;​    Standard_EXPORT        void SetLimit(const TopAbs_ShapeEnum aLimit);​    Standard_EXPORT        TopAbs_ShapeEnum Limit()const;​    Standard_EXPORT        void SetLimitMode(const Standard_Integer aMode);​    Standard_EXPORT        Standard_Integer LimitMode()const;​    Standard_EXPORT        virtual void Clear();​protected:    Standard_EXPORT        virtual void BuildResult(const TopAbs_ShapeEnum theType);​    Standard_EXPORT        virtual void PostTreat();​protected:    TopTools_ListOfShape myTools;    TopTools_MapOfShape myMapTools;    TopAbs_ShapeEnum myLimit;    Standard_Integer myLimitMode;};​#endif​​

GEOMAlgo_Splitter.cpp

// Copyright (C) 2007-2019  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:        GEOMAlgo_Splitter.cxx// Created:     Thu Sep 06 10:54:04 2012// Author:      Peter KURNEV//              <pkv@irinox>//​#include"GEOMAlgo_Splitter.h"#include <TopAbs_ShapeEnum.hxx>​#include <TopoDS_Shape.hxx>#include <TopoDS_Compound.hxx>#include <TopoDS_Iterator.hxx>​#include <BRep_Builder.hxx>​#include <TopTools_MapOfShape.hxx>#include <TopTools_ListOfShape.hxx>​#include <TopExp.hxx>​staticvoid TreatCompound(const TopoDS_Shape& aC,    TopTools_ListOfShape& aLSX);​//=======================================================================//function : //purpose  : //=======================================================================GEOMAlgo_Splitter::GEOMAlgo_Splitter()    :    BOPAlgo_Builder(),    myTools(myAllocator),    myMapTools(100, myAllocator){    myLimit = TopAbs_SHAPE;    myLimitMode = 0;}//=======================================================================//function : //purpose  : //=======================================================================GEOMAlgo_Splitter::GEOMAlgo_Splitter(const Handle(NCollection_BaseAllocator)& theAllocator)    :    BOPAlgo_Builder(theAllocator),    myTools(myAllocator),    myMapTools(100, myAllocator){    myLimit = TopAbs_SHAPE;    myLimitMode = 0;}//=======================================================================//function : ~//purpose  : //=======================================================================GEOMAlgo_Splitter::~GEOMAlgo_Splitter(){}//=======================================================================//function : AddTool//purpose  : //=======================================================================void GEOMAlgo_Splitter::AddTool(const TopoDS_Shape& theShape){    if (myMapTools.Add(theShape)) {        myTools.Append(theShape);        //        AddArgument(theShape);    }}//=======================================================================//function : Tools//purpose  : //=======================================================================const TopTools_ListOfShape& GEOMAlgo_Splitter::Tools()const{    return myTools;}//=======================================================================//function : SetLimit//purpose  : //=======================================================================void GEOMAlgo_Splitter::SetLimit(const TopAbs_ShapeEnum aLimit){    myLimit = aLimit;}//=======================================================================//function : Limit//purpose  : //=======================================================================TopAbs_ShapeEnum GEOMAlgo_Splitter::Limit()const{    return myLimit;}//=======================================================================//function : SetLimitMode//purpose  : //=======================================================================void GEOMAlgo_Splitter::SetLimitMode(const Standard_Integer aMode){    myLimitMode = aMode;}//=======================================================================//function : LimitMode//purpose  : //=======================================================================Standard_Integer GEOMAlgo_Splitter::LimitMode()const{    return myLimitMode;}//=======================================================================//function : Clear//purpose  : //=======================================================================void GEOMAlgo_Splitter::Clear(){    myTools.Clear();    myMapTools.Clear();    myLimit = TopAbs_SHAPE;    BOPAlgo_Builder::Clear();}//=======================================================================//function : BuildResult//purpose  : //=======================================================================void GEOMAlgo_Splitter::BuildResult(const TopAbs_ShapeEnum theType){    TopAbs_ShapeEnum aType;    BRep_Builder aBB;    TopTools_MapOfShape aM;    TopTools_ListIteratorOfListOfShape aIt, aItIm;    //    aIt.Initialize(myArguments);    for (; aIt.More(); aIt.Next()) {        const TopoDS_Shape& aS = aIt.Value();        aType = aS.ShapeType();        if (aType == theType && !myMapTools.Contains(aS)) {            if (myImages.IsBound(aS)) {                const TopTools_ListOfShape& aLSIm = myImages.Find(aS);                aItIm.Initialize(aLSIm);                for (; aItIm.More(); aItIm.Next()) {                    const TopoDS_Shape& aSIm = aItIm.Value();                    if (aM.Add(aSIm)) {                        aBB.Add(myShape, aSIm);                    }                }            }            else {                if (aM.Add(aS)) {                    aBB.Add(myShape, aS);                }            }        }    }}//=======================================================================//function : PostTreat//purpose  : //=======================================================================void GEOMAlgo_Splitter::PostTreat(){    if (myLimit != TopAbs_SHAPE) {        Standard_Integer i, aNbS;        BRep_Builder aBB;        TopoDS_Compound aC;        TopTools_IndexedMapOfShape aMx;        //        aBB.MakeCompound(aC);        //        TopExp::MapShapes(myShape, myLimit, aMx);        aNbS = aMx.Extent();        for (i = 1; i <= aNbS; ++i) {            const TopoDS_Shape& aS = aMx(i);            aBB.Add(aC, aS);        }        if (myLimitMode) {            Standard_Integer iType, iLimit, iTypeX;            TopAbs_ShapeEnum aType, aTypeX;            TopTools_ListOfShape aLSP, aLSX;            TopTools_ListIteratorOfListOfShape aIt, aItX, aItIm;            TopTools_MapOfShape  aM;            //            iLimit = (Standard_Integer)myLimit;            //            // 1. Collect the shapes to process aLSP            aIt.Initialize(myArguments);            for (; aIt.More(); aIt.Next()) {                const TopoDS_Shape& aS = aIt.Value();                if (myMapTools.Contains(aS)) {                    continue;                }                //                aType = aS.ShapeType();                iType = (Standard_Integer)aType;                //                if (iType > iLimit) {                    aLSP.Append(aS);                }                //                else if (aType == TopAbs_COMPOUND) {                    aLSX.Clear();                    //                    TreatCompound(aS, aLSX);                    //                    aItX.Initialize(aLSX);                    for (; aItX.More(); aItX.Next()) {                        const TopoDS_Shape& aSX = aItX.Value();                        aTypeX = aSX.ShapeType();                        iTypeX = (Standard_Integer)aTypeX;                        //                        if (iTypeX > iLimit) {                            aLSP.Append(aSX);                        }                    }                }            }// for (; aIt.More(); aIt.Next()) {            //            aMx.Clear();            TopExp::MapShapes(aC, aMx);            // 2. Add them to aC            aIt.Initialize(aLSP);            for (; aIt.More(); aIt.Next()) {                const TopoDS_Shape& aS = aIt.Value();                if (myImages.IsBound(aS)) {                    const TopTools_ListOfShape& aLSIm = myImages.Find(aS);                    aItIm.Initialize(aLSIm);                    for (; aItIm.More(); aItIm.Next()) {                        const TopoDS_Shape& aSIm = aItIm.Value();                        if (aM.Add(aSIm)) {                            if (!aMx.Contains(aSIm)) {                                aBB.Add(aC, aSIm);                            }                        }                    }                }                else {                    if (aM.Add(aS)) {                        if (!aMx.Contains(aS)) {                            aBB.Add(aC, aS);                        }                    }                }            }        }// if (myLimitMode) {        myShape = aC;    }//if (myLimit!=TopAbs_SHAPE) {    //    Standard_Integer aNbS;    TopoDS_Iterator aIt;    TopTools_ListOfShape aLS;    //    aIt.Initialize(myShape);    for (; aIt.More(); aIt.Next()) {        const TopoDS_Shape& aS = aIt.Value();        aLS.Append(aS);    }    aNbS = aLS.Extent();    if (aNbS == 1) {        myShape = aLS.First();    }    //    //BOPAlgo_Builder::PostTreat();}//=======================================================================//function : TreatCompound//purpose  : //=======================================================================void TreatCompound(const TopoDS_Shape& aC1,    TopTools_ListOfShape& aLSX){    Standard_Integer aNbC1;    TopAbs_ShapeEnum aType;    TopTools_ListOfShape aLC, aLC1;    TopTools_ListIteratorOfListOfShape aIt, aIt1;    TopoDS_Iterator aItC;    //    aLC.Append(aC1);    for (;;) {        aLC1.Clear();        aIt.Initialize(aLC);        for (; aIt.More(); aIt.Next()) {            const TopoDS_Shape& aC = aIt.Value(); //C is compound            //            aItC.Initialize(aC);            for (; aItC.More(); aItC.Next()) {                const TopoDS_Shape& aS = aItC.Value();                aType = aS.ShapeType();                if (aType == TopAbs_COMPOUND) {                    aLC1.Append(aS);                }                else {                    aLSX.Append(aS);                }            }        }        //        aNbC1 = aLC1.Extent();        if (!aNbC1) {            break;        }        //        aLC.Clear();        aIt.Initialize(aLC1);        for (; aIt.More(); aIt.Next()) {            const TopoDS_Shape& aSC = aIt.Value();            aLC.Append(aSC);        }    }// while(1)}//// myErrorStatus// // 0  - Ok// 1  - The object is just initialized// 2  - PaveFiller is failed// 10 - No shapes to process// 30 - SolidBuilder failed​​

2、测试

2.1平面分割立方体

#include <BRepPrimAPI_MakeBox.hxx>#include"GEOMAlgo_Splitter.h"#include <gp_Pln.hxx>#include <BRepBuilderAPI_MakeFace.hxx>#include <TopExp_Explorer.hxx>​​#include"Viewer.h"​​​int main(int argc, char* argv[]){    gp_Pnt p0 = gp_Pnt(5, 5, 5);    gp_Dir vnorm = gp_Dir(1, 1, 1);    gp_Pln pln = gp_Pln(p0, vnorm);    TopoDS_Face face = BRepBuilderAPI_MakeFace(pln, -10, 10, -10, 10).Face();    TopoDS_Shape box = BRepPrimAPI_MakeBox(10, 10, 10).Shape();    //启动分割函数    GEOMAlgo_Splitter splitter = GEOMAlgo_Splitter();    //将box作为参数，将面face作为分割工具。    splitter.AddArgument(box);    splitter.AddTool(face);    splitter.Perform();    Viewer vout(50, 50, 500, 500);    //显示分割后的体    for (TopExp_Explorer i(splitter.Shape(), TopAbs_SOLID); i.More(); i.Next())    {        vout << i.Current();    }    vout << face;    vout.StartMessageLoop();    return 0;}

#include <BRepPrimAPI_MakeBox.hxx>#include"GEOMAlgo_Splitter.h"#include <gp_Pln.hxx>#include <BRepBuilderAPI_MakeFace.hxx>#include <TopExp_Explorer.hxx>​​#include"Viewer.h"​​​int main(int argc, char* argv[]){    gp_Pnt p0 = gp_Pnt(5, 5, 5);    gp_Dir vnorm = gp_Dir(1, 1, 1);    gp_Pln pln = gp_Pln(p0, vnorm);    TopoDS_Face face = BRepBuilderAPI_MakeFace(pln, -10, 10, -10, 10).Face();    TopoDS_Shape box = BRepPrimAPI_MakeBox(10, 10, 10).Shape();    //启动分割函数    GEOMAlgo_Splitter splitter = GEOMAlgo_Splitter();    //将box作为参数，将面face作为分割工具。    splitter.AddArgument(box);    splitter.AddTool(face);    splitter.Perform();    Viewer vout(50, 50, 500, 500);    //显示分割后的体    TopExp_Explorer i(splitter.Shape(), TopAbs_SOLID);    i.Next();    vout << i.Current();    vout << face;    vout.StartMessageLoop();    return 0;}

2.2以边分面

#include <vector>#include <gp_Pnt.hxx>#include <gp_Circ.hxx>#include <gp_Pln.hxx>#include <BRepBuilderAPI_MakeFace.hxx>#include <BRepBuilderAPI_MakeEdge.hxx>#include"Viewer.h"#include"GEOMAlgo_Splitter.h"#include <TopExp_Explorer.hxx>​int main(int argc, char* argv[]){    gp_Pnt p0 = gp_Pnt();    gp_Dir vnorm = gp_Dir(1, 0, 0);    gp_Pln pln = gp_Pln(p0, vnorm);    TopoDS_Shape face = BRepBuilderAPI_MakeFace(pln, -10, 10, -10, 10);    gp_Pnt p1 = gp_Pnt(0, 0, 15);    gp_Pnt p2 = gp_Pnt(0, 0, -15);    TopoDS_Shape edge = BRepBuilderAPI_MakeEdge(p1, p2);    //启动分割函数    GEOMAlgo_Splitter splitter = GEOMAlgo_Splitter();     //将面作为参数，将边edge作为分割工具。    splitter.AddArgument(face);    splitter.AddTool(edge);    splitter.Perform();    //显示分割后的体    TopExp_Explorer i(splitter.Shape(), TopAbs_FACE);    i.Next();    Viewer vout(50, 50, 500, 500);    vout << i.Current();    vout << edge;    vout.StartMessageLoop();             return 0;}

2.3以面分面

#include <vector>#include <gp_Pnt.hxx>#include <gp_Circ.hxx>#include <gp_Pln.hxx>#include <BRepBuilderAPI_MakeFace.hxx>#include <BRepBuilderAPI_MakeEdge.hxx>#include"Viewer.h"#include"GEOMAlgo_Splitter.h"#include <TopExp_Explorer.hxx>​int main(int argc, char* argv[]){    //第一个面    gp_Pnt p0 = gp_Pnt(5, 5, 5);    gp_Dir vnorm = gp_Dir(1, 1, 1);    gp_Pln pln = gp_Pln(p0, vnorm);    TopoDS_Shape face1 = BRepBuilderAPI_MakeFace(pln, -10, 10, -10, 10);    //工具面    vnorm = gp_Dir(1, 1, 0);    pln = gp_Pln(p0, vnorm);    TopoDS_Shape face2 = BRepBuilderAPI_MakeFace(pln, -20, 20, -20, 20);     //启动分割函数    GEOMAlgo_Splitter splitter = GEOMAlgo_Splitter();     //将面作为参数，将边edge作为分割工具。    splitter.AddArgument(face1);    splitter.AddTool(face2);    splitter.Perform();    //显示分割后的体    TopExp_Explorer i(splitter.Shape(), TopAbs_FACE);    i.Next();    Viewer vout(50, 50, 500, 500);    vout << i.Current();    vout << face2;    vout.StartMessageLoop();             return 0;}

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