1 // Created on: 1996-02-13
2 // Created by: Jacques GOUSSARD
3 // Copyright (c) 1996-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _BRepFeat_Form_HeaderFile
18 #define _BRepFeat_Form_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Boolean.hxx>
25 #include <TopTools_DataMapOfShapeListOfShape.hxx>
26 #include <TopoDS_Shape.hxx>
27 #include <TopTools_ListOfShape.hxx>
28 #include <BRepFeat_PerfSelection.hxx>
29 #include <TopoDS_Face.hxx>
30 #include <TopTools_DataMapOfShapeShape.hxx>
31 #include <BRepFeat_StatusError.hxx>
32 #include <BRepBuilderAPI_MakeShape.hxx>
33 #include <TColGeom_SequenceOfCurve.hxx>
34 #include <Standard_Integer.hxx>
38 class BRepAlgoAPI_BooleanOperation;
39 class TopOpeBRepBuild_HBuilder;
42 //! Provides general functions to build form features.
43 //! Form features can be depressions or protrusions and include the following types:
47 //! - Revolved feature
49 //! In each case, you have a choice of operation type between the following:
50 //! - removing matter (a Boolean cut: Fuse setting 0)
51 //! - adding matter (Boolean fusion: Fuse setting 1)
52 //! The semantics of form feature creation is based on the construction of shapes:
54 //! - up to a limiting face
55 //! - from a limiting face to a height
56 //! - above and/or below a plane
57 //! The shape defining construction of the feature can be either the
58 //! supporting edge or the concerned area of a face.
59 //! In case of the supporting edge, this contour can be attached to a
60 //! face of the basis shape by binding. When the contour is bound to this
61 //! face, the information that the contour will slide on the face
62 //! becomes available to the relevant class methods. In case of the
63 //! concerned area of a face, you could, for example, cut it out and
64 //! move it to a different height which will define the limiting face of a
65 //! protrusion or depression.
66 //! Topological definition with local operations of this sort makes
67 //! calculations simpler and faster than a global operation. The latter
68 //! would entail a second phase of removing unwanted matter to get the same result.
69 class BRepFeat_Form : public BRepBuilderAPI_MakeShape
76 //! returns the list of generated Faces.
77 Standard_EXPORT virtual const TopTools_ListOfShape& Modified (const TopoDS_Shape& F) Standard_OVERRIDE;
79 //! returns a list of the created faces
80 //! from the shape <S>.
81 Standard_EXPORT virtual const TopTools_ListOfShape& Generated (const TopoDS_Shape& S) Standard_OVERRIDE;
83 Standard_EXPORT virtual Standard_Boolean IsDeleted (const TopoDS_Shape& S) Standard_OVERRIDE;
85 //! Returns the list of shapes created at the bottom of
86 //! the created form. It may be an empty list.
87 Standard_EXPORT const TopTools_ListOfShape& FirstShape() const;
89 //! Returns the list of shapes created at the top of the
90 //! created form. It may be an empty list.
91 Standard_EXPORT const TopTools_ListOfShape& LastShape() const;
93 //! Returns a list of the limiting and glueing edges
94 //! generated by the feature. These edges did not originally
95 //! exist in the basis shape.
96 //! The list provides the information necessary for
97 //! subsequent addition of fillets. It may be an empty list.
98 Standard_EXPORT const TopTools_ListOfShape& NewEdges() const;
100 //! Returns a list of the tangent edges among the limiting
101 //! and glueing edges generated by the feature. These
102 //! edges did not originally exist in the basis shape and are
103 //! tangent to the face against which the feature is built.
104 //! The list provides the information necessary for
105 //! subsequent addition of fillets. It may be an empty list.
106 //! If an edge is tangent, no fillet is possible, and the edge
107 //! must subsequently be removed if you want to add a fillet.
108 Standard_EXPORT const TopTools_ListOfShape& TgtEdges() const;
110 //! Initializes the topological construction if the basis shape is present.
111 void BasisShapeValid();
113 //! Initializes the topological construction if the generated shape S is present.
114 void GeneratedShapeValid();
117 //! Initializes the topological construction if the shape is
118 //! present from the specified integer on.
119 void ShapeFromValid();
122 //! Initializes the topological construction if the shape is
123 //! present until the specified integer.
124 void ShapeUntilValid();
127 //! Initializes the topological construction if the glued face is present.
128 void GluedFacesValid();
131 //! Initializes the topological construction if the sketch face
132 //! is present. If the sketch face is inside the basis shape,
133 //! local operations such as glueing can be performed.
134 void SketchFaceValid();
136 //! Initializes the topological construction if the selected face is present.
137 void PerfSelectionValid();
139 Standard_EXPORT virtual void Curves (TColGeom_SequenceOfCurve& S) = 0;
141 Standard_EXPORT virtual Handle(Geom_Curve) BarycCurve() = 0;
143 Standard_EXPORT BRepFeat_StatusError CurrentStatusError() const;
151 //! Redefines the empty constructor.
154 //! General perform method...
155 Standard_EXPORT void GlobalPerform();
157 Standard_EXPORT void UpdateDescendants (const LocOpe_Gluer& G);
159 Standard_EXPORT void UpdateDescendants (const BRepAlgoAPI_BooleanOperation& aBOP, const TopoDS_Shape& SResult, const Standard_Boolean SkipFace = Standard_False);
161 Standard_EXPORT void UpdateDescendants (const Handle(TopOpeBRepBuild_HBuilder)& B, const TopoDS_Shape& SResult, const Standard_Boolean SkipFace = Standard_False);
163 Standard_EXPORT Standard_Boolean TransformShapeFU (const Standard_Integer flag);
166 Standard_Boolean myFuse;
167 Standard_Boolean myModify;
168 TopTools_DataMapOfShapeListOfShape myMap;
169 TopoDS_Shape myFShape;
170 TopoDS_Shape myLShape;
171 TopTools_ListOfShape myNewEdges;
172 TopTools_ListOfShape myTgtEdges;
173 BRepFeat_PerfSelection myPerfSelection;
174 Standard_Boolean myJustGluer;
175 Standard_Boolean myJustFeat;
176 TopoDS_Shape mySbase;
177 TopoDS_Face mySkface;
178 TopoDS_Shape myGShape;
179 TopoDS_Shape mySFrom;
180 TopoDS_Shape mySUntil;
181 TopTools_DataMapOfShapeShape myGluedF;
188 Standard_Boolean mySbOK;
189 Standard_Boolean mySkOK;
190 Standard_Boolean myGSOK;
191 Standard_Boolean mySFOK;
192 Standard_Boolean mySUOK;
193 Standard_Boolean myGFOK;
194 Standard_Boolean myPSOK;
195 BRepFeat_StatusError myStatusError;
201 #include <BRepFeat_Form.lxx>
207 #endif // _BRepFeat_Form_HeaderFile