include/opencascade/BRepFeat_MakeRevolutionForm.hxx

0001 // Created on: 1997-10-14
0002 // Created by: Olga KOULECHOVA
0003 // Copyright (c) 1997-1999 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 _BRepFeat_MakeRevolutionForm_HeaderFile
0018 #define _BRepFeat_MakeRevolutionForm_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <gp_Ax1.hxx>
0025 #include <TopTools_DataMapOfShapeListOfShape.hxx>
0026 #include <TopTools_ListOfShape.hxx>
0027 #include <BRepFeat_RibSlot.hxx>
0028 #include <Standard_Integer.hxx>
0029 class Geom_Plane;
0030 class TopoDS_Shape;
0031 class TopoDS_Wire;
0032 class TopoDS_Edge;
0033 class TopoDS_Face;
0034 class gp_Pnt;
0035
0036
0037 //! MakeRevolutionForm Generates a surface of
0038 //! revolution in the feature as it slides along a
0039 //! revolved face in the basis shape.
0040 //! The semantics of mechanical features is built
0041 //! around giving thickness to a contour. This
0042 //! thickness can either be unilateral - on one side
0043 //! of the contour - or bilateral - on both sides. As
0044 //! in the semantics of form features, the thickness
0045 //! is defined by construction of shapes in specific contexts.
0046 //! The development contexts differ, however,in
0047 //! case of mechanical features. Here they include extrusion:
0048 //! -   to a limiting face of the basis shape
0049 //! -   to or from a limiting plane
0050 //! -   to a height.
0051 class BRepFeat_MakeRevolutionForm  : public BRepFeat_RibSlot
0052 {
0053 public:
0054
0055   DEFINE_STANDARD_ALLOC
0056
0057
0058   //! initializes the linear form class.
0059     BRepFeat_MakeRevolutionForm();
0060
0061   //! a contour W, a shape Sbase and a plane P are initialized to serve as
0062   //! the basic elements in the construction of the rib or groove. The axis Axis of the
0063   //! revolved surface in the basis shape defines the feature's axis of revolution.
0064   //! Height1 and Height2 may be used as limits to the construction of the feature.
0065   //! Fuse offers a choice between:
0066   //! -   removing matter with a Boolean cut using the setting 0 in case of the groove
0067   //! -   adding matter with Boolean fusion using the setting 1 in case of the rib.
0068     BRepFeat_MakeRevolutionForm(const TopoDS_Shape& Sbase, const TopoDS_Wire& W, const Handle(Geom_Plane)& Plane, const gp_Ax1& Axis, const Standard_Real Height1, const Standard_Real Height2, const Standard_Integer Fuse, Standard_Boolean& Sliding);
0069
0070   //! Initializes this construction algorithm
0071   //! A contour W, a shape Sbase and a plane P are initialized to serve as the basic elements
0072   //! in the construction of the rib or groove. The axis Axis of the revolved surface in the basis
0073   //! shape defines the feature's axis of revolution. Height1 and Height2 may be
0074   //! used as limits to the construction of the feature.
0075   //! Fuse offers a choice between:
0076   //! -   removing matter with a Boolean cut using the setting 0 in case of the groove
0077   //! -   adding matter with Boolean fusion using the setting 1 in case of the rib.
0078   Standard_EXPORT void Init (const TopoDS_Shape& Sbase, const TopoDS_Wire& W, const Handle(Geom_Plane)& Plane, const gp_Ax1& Axis, const Standard_Real Height1, const Standard_Real Height2, const Standard_Integer Fuse, Standard_Boolean& Sliding);
0079
0080   //! Indicates that the edge <E> will slide on the face
0081   //! <OnFace>. Raises ConstructionError  if the  face does not belong to the
0082   //! basis shape, or the edge to the prismed shape.
0083   Standard_EXPORT void Add (const TopoDS_Edge& E, const TopoDS_Face& OnFace);
0084
0085   //! Performs a prism from the wire to the plane
0086   //! along the basis shape S. Reconstructs the feature topologically.
0087   Standard_EXPORT void Perform();
0088
0089   Standard_EXPORT Standard_Boolean Propagate (TopTools_ListOfShape& L, const TopoDS_Face& F, const gp_Pnt& FPoint, const gp_Pnt& LPoint, Standard_Boolean& falseside);
0090
0091
0092
0093
0094 protected:
0095
0096
0097
0098
0099
0100 private:
0101
0102
0103
0104   gp_Ax1 myAxe;
0105   Standard_Real myHeight1;
0106   Standard_Real myHeight2;
0107   Standard_Boolean mySliding;
0108   Handle(Geom_Plane) myPln;
0109   Standard_Real myBnd;
0110   TopTools_DataMapOfShapeListOfShape mySlface;
0111   TopTools_ListOfShape myListOfEdges;
0112   Standard_Real myTol;
0113   Standard_Real myAngle1;
0114   Standard_Real myAngle2;
0115
0116
0117 };
0118
0119
0120 #include <BRepFeat_MakeRevolutionForm.lxx>
0121
0122
0123
0124
0125
0126 #endif // _BRepFeat_MakeRevolutionForm_HeaderFile