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0001 // Created on: 1996-06-11 0002 // Created by: Jacques GOUSSARD 0003 // Copyright (c) 1996-1999 Matra Datavision 0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS 0005 // 0006 // This file is part of Open CASCADE Technology software library. 0007 // 0008 // This library is free software; you can redistribute it and/or modify it under 0009 // the terms of the GNU Lesser General Public License version 2.1 as published 0010 // by the Free Software Foundation, with special exception defined in the file 0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT 0012 // distribution for complete text of the license and disclaimer of any warranty. 0013 // 0014 // Alternatively, this file may be used under the terms of Open CASCADE 0015 // commercial license or contractual agreement. 0016 0017 #ifndef _LocOpe_CSIntersector_HeaderFile 0018 #define _LocOpe_CSIntersector_HeaderFile 0019 0020 #include <Standard.hxx> 0021 #include <Standard_DefineAlloc.hxx> 0022 0023 #include <TopoDS_Shape.hxx> 0024 #include <Standard_Integer.hxx> 0025 #include <LocOpe_SequenceOfLin.hxx> 0026 #include <LocOpe_SequenceOfCirc.hxx> 0027 #include <TColGeom_SequenceOfCurve.hxx> 0028 #include <TopAbs_Orientation.hxx> 0029 class LocOpe_PntFace; 0030 0031 0032 //! This class provides the intersection between a set 0033 //! of axis or a circle and the faces of a shape. The 0034 //! intersection points are sorted in increasing 0035 //! parameter along each axis or circle. 0036 class LocOpe_CSIntersector 0037 { 0038 public: 0039 0040 DEFINE_STANDARD_ALLOC 0041 0042 0043 //! Empty constructor. 0044 LocOpe_CSIntersector(); 0045 0046 //! Creates and performs the intersection betwwen 0047 //! <Ax1> and <S>. 0048 LocOpe_CSIntersector(const TopoDS_Shape& S); 0049 0050 //! Performs the intersection between <Ax1 and <S>. 0051 Standard_EXPORT void Init (const TopoDS_Shape& S); 0052 0053 Standard_EXPORT void Perform (const LocOpe_SequenceOfLin& Slin); 0054 0055 Standard_EXPORT void Perform (const LocOpe_SequenceOfCirc& Scir); 0056 0057 Standard_EXPORT void Perform (const TColGeom_SequenceOfCurve& Scur); 0058 0059 //! Returns <Standard_True> if the intersection has 0060 //! been done. 0061 Standard_Boolean IsDone() const; 0062 0063 //! Returns the number of intersection point on the 0064 //! element of range <I>. 0065 Standard_EXPORT Standard_Integer NbPoints (const Standard_Integer I) const; 0066 0067 //! Returns the intersection point of range <Index> on 0068 //! element of range <I>. The points are sorted in 0069 //! increasing order of parameter along the axis. 0070 Standard_EXPORT const LocOpe_PntFace& Point (const Standard_Integer I, const Standard_Integer Index) const; 0071 0072 //! On the element of range <I>, searches the first 0073 //! intersection point located after the parameter 0074 //! <From>, which orientation is not TopAbs_EXTERNAL. 0075 //! If found, returns <Standard_True>. <Or> contains 0076 //! the orientation of the point, <IndFrom> and 0077 //! <IndTo> represents the interval of index in the 0078 //! sequence of intersection point corresponding to 0079 //! the point. (IndFrom <= IndTo). <Tol> is used to 0080 //! determine if 2 parameters are equal. 0081 //! 0082 //! Otherwise, returns <Standard_False>. 0083 Standard_EXPORT Standard_Boolean LocalizeAfter (const Standard_Integer I, const Standard_Real From, const Standard_Real Tol, TopAbs_Orientation& Or, Standard_Integer& IndFrom, Standard_Integer& IndTo) const; 0084 0085 //! On the element of range <I>, searches the first 0086 //! intersection point located before the parameter 0087 //! <From>, which orientation is not TopAbs_EXTERNAL. 0088 //! If found, returns <Standard_True>. <Or> contains 0089 //! the orientation of the point, <IndFrom> and 0090 //! <IndTo> represents the interval of index in the 0091 //! sequence of intersection point corresponding to 0092 //! the point (IndFrom <= IndTo). <Tol> is used to 0093 //! determine if 2 parameters are equal. 0094 //! 0095 //! Otherwise, returns <Standard_False>. 0096 Standard_EXPORT Standard_Boolean LocalizeBefore (const Standard_Integer I, const Standard_Real From, const Standard_Real Tol, TopAbs_Orientation& Or, Standard_Integer& IndFrom, Standard_Integer& IndTo) const; 0097 0098 //! On the element of range <I>, searches the first 0099 //! intersection point located after the index 0100 //! <FromInd> ( >= FromInd + 1), which orientation is 0101 //! not TopAbs_EXTERNAL. If found, returns 0102 //! <Standard_True>. <Or> contains the orientation of 0103 //! the point, <IndFrom> and <IndTo> represents the 0104 //! interval of index in the sequence of intersection 0105 //! point corresponding to the point. (IndFrom <= 0106 //! IndTo). <Tol> is used to determine if 2 parameters 0107 //! are equal. 0108 //! 0109 //! Otherwise, returns <Standard_False>. 0110 Standard_EXPORT Standard_Boolean LocalizeAfter (const Standard_Integer I, const Standard_Integer FromInd, const Standard_Real Tol, TopAbs_Orientation& Or, Standard_Integer& IndFrom, Standard_Integer& IndTo) const; 0111 0112 //! On the element of range <I>, searches the first 0113 //! intersection point located before the index 0114 //! <FromInd> ( <= FromInd -1), which orientation is 0115 //! not TopAbs_EXTERNAL. If found, returns 0116 //! <Standard_True>. <Or> contains the orientation of 0117 //! the point, <IndFrom> and <IndTo> represents the 0118 //! interval of index in the sequence of intersection 0119 //! point corresponding to the point (IndFrom <= 0120 //! IndTo). <Tol> is used to determine if 2 parameters 0121 //! are equal. 0122 //! 0123 //! Otherwise, returns <Standard_False>. 0124 Standard_EXPORT Standard_Boolean LocalizeBefore (const Standard_Integer I, const Standard_Integer FromInd, const Standard_Real Tol, TopAbs_Orientation& Or, Standard_Integer& IndFrom, Standard_Integer& IndTo) const; 0125 0126 Standard_EXPORT void Destroy(); 0127 ~LocOpe_CSIntersector() 0128 { 0129 Destroy(); 0130 } 0131 0132 0133 0134 0135 protected: 0136 0137 0138 0139 0140 0141 private: 0142 0143 0144 0145 Standard_Boolean myDone; 0146 TopoDS_Shape myShape; 0147 Standard_Address myPoints; 0148 Standard_Integer myNbelem; 0149 0150 0151 }; 0152 0153 0154 #include <LocOpe_CSIntersector.lxx> 0155 0156 0157 0158 0159 0160 #endif // _LocOpe_CSIntersector_HeaderFile
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