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203 lines
7.9 KiB
C++
203 lines
7.9 KiB
C++
// Created on: 1995-10-20
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// Created by: Yves FRICAUD
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// Copyright (c) 1995-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _BRepOffset_Analyse_HeaderFile
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#define _BRepOffset_Analyse_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <TopoDS_Shape.hxx>
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#include <BRepOffset_DataMapOfShapeListOfInterval.hxx>
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#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
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#include <BRepOffset_ListOfInterval.hxx>
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#include <ChFiDS_TypeOfConcavity.hxx>
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#include <TopTools_DataMapOfShapeListOfShape.hxx>
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#include <TopTools_DataMapOfShapeReal.hxx>
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#include <TopTools_DataMapOfShapeShape.hxx>
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#include <TopTools_ListOfShape.hxx>
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#include <TopTools_MapOfShape.hxx>
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#include <Message_ProgressRange.hxx>
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class TopoDS_Edge;
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class TopoDS_Vertex;
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class TopoDS_Face;
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class TopoDS_Compound;
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//! Analyses the shape to find the parts of edges
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//! connecting the convex, concave or tangent faces.
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class BRepOffset_Analyse
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{
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public:
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DEFINE_STANDARD_ALLOC
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public: //! @name Constructors
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//! Empty c-tor
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Standard_EXPORT BRepOffset_Analyse();
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//! C-tor performing the job inside
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Standard_EXPORT BRepOffset_Analyse (const TopoDS_Shape& theS,
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const Standard_Real theAngle);
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public: //! @name Performing analysis
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//! Performs the analysis
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Standard_EXPORT void Perform (const TopoDS_Shape& theS,
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const Standard_Real theAngle,
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const Message_ProgressRange& theRange = Message_ProgressRange());
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public: //! @name Results
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//! Returns status of the algorithm
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Standard_Boolean IsDone() const
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{
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return myDone;
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}
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//! Returns the connectivity type of the edge
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Standard_EXPORT const BRepOffset_ListOfInterval& Type (const TopoDS_Edge& theE) const;
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//! Stores in <L> all the edges of Type <T>
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//! on the vertex <V>.
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Standard_EXPORT void Edges (const TopoDS_Vertex& theV,
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const ChFiDS_TypeOfConcavity theType,
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TopTools_ListOfShape& theL) const;
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//! Stores in <L> all the edges of Type <T>
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//! on the face <F>.
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Standard_EXPORT void Edges (const TopoDS_Face& theF,
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const ChFiDS_TypeOfConcavity theType,
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TopTools_ListOfShape& theL) const;
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//! set in <Edges> all the Edges of <Shape> which are
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//! tangent to <Edge> at the vertex <Vertex>.
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Standard_EXPORT void TangentEdges (const TopoDS_Edge& theEdge,
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const TopoDS_Vertex& theVertex,
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TopTools_ListOfShape& theEdges) const;
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//! Checks if the given shape has ancestors
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Standard_Boolean HasAncestor (const TopoDS_Shape& theS) const
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{
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return myAncestors.Contains (theS);
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}
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//! Returns ancestors for the shape
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const TopTools_ListOfShape& Ancestors (const TopoDS_Shape& theS) const
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{
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return myAncestors.FindFromKey (theS);
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}
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//! Explode in compounds of faces where
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//! all the connex edges are of type <Side>
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Standard_EXPORT void Explode (TopTools_ListOfShape& theL,
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const ChFiDS_TypeOfConcavity theType) const;
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//! Explode in compounds of faces where
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//! all the connex edges are of type <Side1> or <Side2>
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Standard_EXPORT void Explode (TopTools_ListOfShape& theL,
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const ChFiDS_TypeOfConcavity theType1,
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const ChFiDS_TypeOfConcavity theType2) const;
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//! Add in <CO> the faces of the shell containing <Face>
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//! where all the connex edges are of type <Side>.
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Standard_EXPORT void AddFaces (const TopoDS_Face& theFace,
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TopoDS_Compound& theCo,
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TopTools_MapOfShape& theMap,
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const ChFiDS_TypeOfConcavity theType) const;
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//! Add in <CO> the faces of the shell containing <Face>
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//! where all the connex edges are of type <Side1> or <Side2>.
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Standard_EXPORT void AddFaces (const TopoDS_Face& theFace,
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TopoDS_Compound& theCo,
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TopTools_MapOfShape& theMap,
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const ChFiDS_TypeOfConcavity theType1,
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const ChFiDS_TypeOfConcavity theType2) const;
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void SetOffsetValue (const Standard_Real theOffset)
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{
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myOffset = theOffset;
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}
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//! Sets the face-offset data map to analyze tangential cases
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void SetFaceOffsetMap (const TopTools_DataMapOfShapeReal& theMap)
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{
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myFaceOffsetMap = theMap;
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}
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//! Returns the new faces constructed between tangent faces
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//! having different offset values on the shape
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const TopTools_ListOfShape& NewFaces() const { return myNewFaces; }
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//! Returns the new face constructed for the edge connecting
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//! the two tangent faces having different offset values
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Standard_EXPORT TopoDS_Shape Generated (const TopoDS_Shape& theS) const;
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//! Checks if the edge has generated a new face.
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Standard_Boolean HasGenerated (const TopoDS_Shape& theS) const
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{
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return myGenerated.Seek (theS) != NULL;
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}
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//! Returns the replacement of the edge in the face.
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//! If no replacement exists, returns the edge
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Standard_EXPORT const TopoDS_Edge& EdgeReplacement (const TopoDS_Face& theFace,
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const TopoDS_Edge& theEdge) const;
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//! Returns the shape descendants.
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Standard_EXPORT const TopTools_ListOfShape* Descendants (const TopoDS_Shape& theS,
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const Standard_Boolean theUpdate = Standard_False) const;
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public: //! @name Clearing the content
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//! Clears the content of the algorithm
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Standard_EXPORT void Clear();
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private: //! @name Treatment of tangential cases
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//! Treatment of the tangential cases.
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//! @param theEdges List of edges connecting tangent faces
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Standard_EXPORT void TreatTangentFaces (const TopTools_ListOfShape& theEdges, const Message_ProgressRange& theRange);
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private: //! @name Fields
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// Inputs
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TopoDS_Shape myShape; //!< Input shape to analyze
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Standard_Real myAngle; //!< Criteria angle to check tangency
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Standard_Real myOffset; //!< Offset value
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TopTools_DataMapOfShapeReal myFaceOffsetMap; //!< Map to store offset values for the faces.
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//! Should be set by the calling algorithm.
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// Results
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Standard_Boolean myDone; //!< Status of the algorithm
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BRepOffset_DataMapOfShapeListOfInterval myMapEdgeType; //!< Map containing the list of intervals on the edge
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TopTools_IndexedDataMapOfShapeListOfShape myAncestors; //!< Ancestors map
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NCollection_DataMap<TopoDS_Shape,
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TopTools_DataMapOfShapeShape,
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TopTools_ShapeMapHasher> myReplacement; //!< Replacement of an edge in the face
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mutable TopTools_DataMapOfShapeListOfShape myDescendants; //!< Map of shapes descendants built on the base of
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//!< Ancestors map. Filled on the first query.
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TopTools_ListOfShape myNewFaces; //!< New faces generated to close the gaps between adjacent
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//! tangential faces having different offset values
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TopTools_DataMapOfShapeShape myGenerated; //!< Binding between edge and face generated from the edge
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};
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#endif // _BRepOffset_Analyse_HeaderFile
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