// Created on: 1995-07-17 // Created by: Jing-Cheng MEI // Copyright (c) 1995-1999 Matra Datavision // Copyright (c) 1999-2014 OPEN CASCADE SAS // // This file is part of Open CASCADE Technology software library. // // This library is free software; you can redistribute it and/or modify it under // the terms of the GNU Lesser General Public License version 2.1 as published // by the Free Software Foundation, with special exception defined in the file // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT // distribution for complete text of the license and disclaimer of any warranty. // // Alternatively, this file may be used under the terms of Open CASCADE // commercial license or contractual agreement. #ifndef _BRepOffsetAPI_ThruSections_HeaderFile #define _BRepOffsetAPI_ThruSections_HeaderFile #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include class TopoDS_Wire; class TopoDS_Vertex; class TopoDS_Shape; class Geom_BSplineSurface; //! Describes functions to build a loft. This is a shell or a //! solid passing through a set of sections in a given //! sequence. Usually sections are wires, but the first and //! the last sections may be vertices (punctual sections). class BRepOffsetAPI_ThruSections : public BRepBuilderAPI_MakeShape { public: DEFINE_STANDARD_ALLOC //! Initializes an algorithm for building a shell or a solid //! passing through a set of sections, where: //! - isSolid is set to true if the construction algorithm is //! required to build a solid or to false if it is required to build //! a shell (the default value), //! - ruled is set to true if the faces generated between //! the edges of two consecutive wires are ruled surfaces or to //! false (the default value) if they are smoothed out by approximation, //! - pres3d defines the precision criterion used by the //! approximation algorithm; the default value is 1.0e-6. //! Use AddWire and AddVertex to define the //! successive sections of the shell or solid to be built. Standard_EXPORT BRepOffsetAPI_ThruSections(const Standard_Boolean isSolid = Standard_False, const Standard_Boolean ruled = Standard_False, const Standard_Real pres3d = 1.0e-06); //! Initializes this algorithm for building a shell or a solid //! passing through a set of sections, where: //! - isSolid is set to true if this construction algorithm is //! required to build a solid or to false if it is required to //! build a shell. false is the default value; //! - ruled is set to true if the faces generated between the //! edges of two consecutive wires are ruled surfaces or //! to false (the default value) if they are smoothed out by approximation, //! - pres3d defines the precision criterion used by the //! approximation algorithm; the default value is 1.0e-6. //! Use AddWire and AddVertex to define the successive //! sections of the shell or solid to be built. Standard_EXPORT void Init (const Standard_Boolean isSolid = Standard_False, const Standard_Boolean ruled = Standard_False, const Standard_Real pres3d = 1.0e-06); //! Adds the wire wire to the set of //! sections through which the shell or solid is built. //! Use the Build function to construct the shape. Standard_EXPORT void AddWire (const TopoDS_Wire& wire); //! Adds the vertex Vertex (punctual section) to the set of sections //! through which the shell or solid is built. A vertex may be added to the //! set of sections only as first or last section. At least one wire //! must be added to the set of sections by the method AddWire. //! Use the Build function to construct the shape. Standard_EXPORT void AddVertex (const TopoDS_Vertex& aVertex); //! Sets/unsets the option to //! compute origin and orientation on wires to avoid twisted results //! and update wires to have same number of edges. Standard_EXPORT void CheckCompatibility (const Standard_Boolean check = Standard_True); //! Define the approximation algorithm Standard_EXPORT void SetSmoothing (const Standard_Boolean UseSmoothing); //! Define the type of parametrization used in the approximation Standard_EXPORT void SetParType (const Approx_ParametrizationType ParType); //! Define the Continuity used in the approximation Standard_EXPORT void SetContinuity (const GeomAbs_Shape C); //! define the Weights associed to the criterium used in //! the optimization. //! //! if Wi <= 0 Standard_EXPORT void SetCriteriumWeight (const Standard_Real W1, const Standard_Real W2, const Standard_Real W3); //! Define the maximal U degree of result surface Standard_EXPORT void SetMaxDegree (const Standard_Integer MaxDeg); //! returns the type of parametrization used in the approximation Standard_EXPORT Approx_ParametrizationType ParType() const; //! returns the Continuity used in the approximation Standard_EXPORT GeomAbs_Shape Continuity() const; //! returns the maximal U degree of result surface Standard_EXPORT Standard_Integer MaxDegree() const; //! Define the approximation algorithm Standard_EXPORT Standard_Boolean UseSmoothing() const; //! returns the Weights associed to the criterium used in //! the optimization. Standard_EXPORT void CriteriumWeight (Standard_Real& W1, Standard_Real& W2, Standard_Real& W3) const; Standard_EXPORT virtual void Build(const Message_ProgressRange& theRange = Message_ProgressRange()) Standard_OVERRIDE; //! Returns the TopoDS Shape of the bottom of the loft if solid Standard_EXPORT const TopoDS_Shape& FirstShape() const; //! Returns the TopoDS Shape of the top of the loft if solid Standard_EXPORT const TopoDS_Shape& LastShape() const; //! if Ruled //! Returns the Face generated by each edge //! except the last wire //! if smoothed //! Returns the Face generated by each edge of the first wire Standard_EXPORT TopoDS_Shape GeneratedFace (const TopoDS_Shape& Edge) const; //! Returns a list of new shapes generated from the shape //! S by the shell-generating algorithm. //! This function is redefined from BRepBuilderAPI_MakeShape::Generated. //! S can be an edge or a vertex of a given Profile (see methods AddWire and AddVertex). Standard_EXPORT virtual const TopTools_ListOfShape& Generated (const TopoDS_Shape& S) Standard_OVERRIDE; //! Returns the list of original wires const TopTools_ListOfShape& Wires() const { return myInputWires; } protected: private: Standard_EXPORT void CreateRuled(); Standard_EXPORT void CreateSmoothed(); Standard_EXPORT Handle(Geom_BSplineSurface) TotalSurf (const TopTools_Array1OfShape& shapes, const Standard_Integer NbSect, const Standard_Integer NbEdges, const Standard_Boolean w1Point, const Standard_Boolean w2Point, const Standard_Boolean vClosed) const; TopTools_ListOfShape myInputWires; //!< List of input wires TopTools_SequenceOfShape myWires; //!< Working wires TopTools_DataMapOfShapeListOfInteger myEdgeNewIndices; TopTools_DataMapOfShapeInteger myVertexIndex; Standard_Integer myNbEdgesInSection; Standard_Boolean myIsSolid; Standard_Boolean myIsRuled; Standard_Boolean myWCheck; Standard_Real myPres3d; TopoDS_Face myFirst; TopoDS_Face myLast; Standard_Boolean myDegen1; Standard_Boolean myDegen2; TopTools_DataMapOfShapeShape myEdgeFace; GeomAbs_Shape myContinuity; Approx_ParametrizationType myParamType; Standard_Integer myDegMax; Standard_Real myCritWeights[3]; Standard_Boolean myUseSmoothing; }; #endif // _BRepOffsetAPI_ThruSections_HeaderFile