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 // 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 <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 #include <Standard_Handle.hxx>
 
 #include <BRepFill_ThruSectionErrorStatus.hxx>
 #include <TopTools_SequenceOfShape.hxx>
 #include <TopoDS_Face.hxx>
 #include <TopTools_DataMapOfShapeShape.hxx>
 #include <TopTools_DataMapOfShapeListOfInteger.hxx>
 #include <TopTools_DataMapOfShapeInteger.hxx>
 #include <GeomAbs_Shape.hxx>
 #include <Approx_ParametrizationType.hxx>
 #include <Standard_Integer.hxx>
 #include <BRepBuilderAPI_MakeShape.hxx>
 #include <TopTools_Array1OfShape.hxx>
 #include <NCollection_Handle.hxx>
 
 class TopoDS_Wire;
 class TopoDS_Vertex;
 class TopoDS_Shape;
 class Geom_BSplineSurface;
 class BRepFill_Generator;
 
 //! 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;
 
   //! Sets the mutable input state.
   //! If true then the input profile can be modified inside
   //! the thrusection operation. Default value is true.
   Standard_EXPORT void SetMutableInput(const Standard_Boolean theIsMutableInput);
   
   //! 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;
   }
   //! Returns the current mutable input state
   Standard_EXPORT Standard_Boolean IsMutableInput() const;
   
   //! Returns the status of thrusection operation
   BRepFill_ThruSectionErrorStatus GetStatus() const
   {
     return myStatus;
   }
 
 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;
   Standard_Boolean myMutableInput;
   NCollection_Handle<BRepFill_Generator> myBFGenerator;
   BRepFill_ThruSectionErrorStatus myStatus;
 
 };
 
 
 
 
 
 
 
 #endif // _BRepOffsetAPI_ThruSections_HeaderFile

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