1 // Created on: 1992-08-28
2 // Created by: Remi LEQUETTE
3 // Copyright (c) 1992-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
5 //
6 // This file is part of Open CASCADE Technology software library.
7 //
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.
13 //
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
16 
17 #ifndef _BRepTools_HeaderFile
18 #define _BRepTools_HeaderFile
19 
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
23 
24 #include <Standard_Real.hxx>
25 #include <Standard_Boolean.hxx>
26 #include <TopTools_IndexedMapOfShape.hxx>
27 #include <Standard_OStream.hxx>
28 #include <Standard_IStream.hxx>
29 #include <Standard_CString.hxx>
30 
31 #include <Message_ProgressIndicator.hxx>
32 
33 class TopoDS_Face;
34 class TopoDS_Wire;
35 class TopoDS_Edge;
36 class Bnd_Box2d;
37 class TopoDS_Vertex;
38 class TopoDS_Shell;
39 class TopoDS_Solid;
40 class TopoDS_CompSolid;
41 class TopoDS_Compound;
42 class TopoDS_Shape;
43 class Message_ProgressIndicator;
44 class BRep_Builder;
45 class BRepTools_WireExplorer;
46 class BRepTools_Modification;
47 class BRepTools_Modifier;
48 class BRepTools_TrsfModification;
49 class BRepTools_NurbsConvertModification;
50 class BRepTools_GTrsfModification;
51 class BRepTools_Substitution;
52 class BRepTools_Quilt;
53 class BRepTools_ShapeSet;
54 class BRepTools_ReShape;
55 class Geom_Curve;
56 class Geom2d_Curve;
57 class Geom_Surface;
58 
59 
60 //! The BRepTools package provides  utilities for BRep
61 //! data structures.
62 //!
63 //! * WireExplorer : A tool to explore the topology of
64 //! a wire in the order of the edges.
65 //!
66 //! * ShapeSet :  Tools used for  dumping, writing and
67 //! reading.
68 //!
69 //! * UVBounds : Methods to compute the  limits of the
70 //! boundary  of a  face,  a wire or   an edge in  the
71 //! parametric space of a face.
72 //!
73 //! *  Update : Methods  to call when   a topology has
74 //! been created to compute all missing data.
75 //!
76 //! * UpdateFaceUVPoints: Method to update the UV points
77 //! stored with the edges on a face.
78 //!
79 //! * Compare : Method to compare two vertices.
80 //!
81 //! * Compare : Method to compare two edges.
82 //!
83 //! * OuterWire : A method to find the outer wire of a
84 //! face.
85 //!
86 //! * Map3DEdges : A method to map all the 3D Edges of
87 //! a Shape.
88 //!
89 //! * Dump : A method to dump a BRep object.
90 class BRepTools
91 {
92 public:
93 
94   DEFINE_STANDARD_ALLOC
95 
96 
97   //! Returns in UMin,  UMax, VMin,  VMax  the  bounding
98   //! values in the parametric space of F.
99   Standard_EXPORT static void UVBounds (const TopoDS_Face& F, Standard_Real& UMin, Standard_Real& UMax, Standard_Real& VMin, Standard_Real& VMax);
100 
101   //! Returns in UMin,  UMax, VMin,  VMax  the  bounding
102   //! values of the wire in the parametric space of F.
103   Standard_EXPORT static void UVBounds (const TopoDS_Face& F, const TopoDS_Wire& W, Standard_Real& UMin, Standard_Real& UMax, Standard_Real& VMin, Standard_Real& VMax);
104 
105   //! Returns in UMin,  UMax, VMin,  VMax  the  bounding
106   //! values of the edge in the parametric space of F.
107   Standard_EXPORT static void UVBounds (const TopoDS_Face& F, const TopoDS_Edge& E, Standard_Real& UMin, Standard_Real& UMax, Standard_Real& VMin, Standard_Real& VMax);
108 
109   //! Adds  to  the box <B>  the bounding values in  the
110   //! parametric space of F.
111   Standard_EXPORT static void AddUVBounds (const TopoDS_Face& F, Bnd_Box2d& B);
112 
113   //! Adds  to the box  <B>  the bounding  values of the
114   //! wire in the parametric space of F.
115   Standard_EXPORT static void AddUVBounds (const TopoDS_Face& F, const TopoDS_Wire& W, Bnd_Box2d& B);
116 
117   //! Adds to  the box <B>  the  bounding values  of the
118   //! edge in the parametric space of F.
119   Standard_EXPORT static void AddUVBounds (const TopoDS_Face& F, const TopoDS_Edge& E, Bnd_Box2d& B);
120 
121   //! Update a vertex (nothing is done)
122   Standard_EXPORT static void Update (const TopoDS_Vertex& V);
123 
124   //! Update an edge, compute 2d bounding boxes.
125   Standard_EXPORT static void Update (const TopoDS_Edge& E);
126 
127   //! Update a wire (nothing is done)
128   Standard_EXPORT static void Update (const TopoDS_Wire& W);
129 
130   //! Update a Face, update UV points.
131   Standard_EXPORT static void Update (const TopoDS_Face& F);
132 
133   //! Update a shell (nothing is done)
134   Standard_EXPORT static void Update (const TopoDS_Shell& S);
135 
136   //! Update a solid (nothing is done)
137   Standard_EXPORT static void Update (const TopoDS_Solid& S);
138 
139   //! Update a composite solid (nothing is done)
140   Standard_EXPORT static void Update (const TopoDS_CompSolid& C);
141 
142   //! Update a compound (nothing is done)
143   Standard_EXPORT static void Update (const TopoDS_Compound& C);
144 
145   //! Update a shape, call the corect update.
146   Standard_EXPORT static void Update (const TopoDS_Shape& S);
147 
148   //! For each edge of the face <F> reset the UV points
149   //! to the bounding points of the parametric curve of the
150   //! edge on the face.
151   Standard_EXPORT static void UpdateFaceUVPoints (const TopoDS_Face& theF);
152 
153   //! Removes all the triangulations of the faces of <S>
154   //! and removes all polygons on triangulations of the
155   //! edges.
156   Standard_EXPORT static void Clean (const TopoDS_Shape& S);
157 
158   //! Removes geometry (curves and surfaces) from all edges and faces of the shape
159   Standard_EXPORT static void CleanGeometry(const TopoDS_Shape& theShape);
160 
161   //! Removes all the pcurves of the edges of <S> that
162   //! refer to surfaces not belonging to any face of <S>
163   Standard_EXPORT static void RemoveUnusedPCurves (const TopoDS_Shape& S);
164 
165   //! verifies that each face from the shape <S> has got
166   //! a triangulation  with a  deflection <= deflec  and
167   //! the edges a discretisation on  this triangulation.
168   Standard_EXPORT static Standard_Boolean Triangulation (const TopoDS_Shape& S, const Standard_Real deflec);
169 
170   //! Returns  True if  the    distance between the  two
171   //! vertices is lower than their tolerance.
172   Standard_EXPORT static Standard_Boolean Compare (const TopoDS_Vertex& V1, const TopoDS_Vertex& V2);
173 
174   //! Returns  True if  the    distance between the  two
175   //! edges is lower than their tolerance.
176   Standard_EXPORT static Standard_Boolean Compare (const TopoDS_Edge& E1, const TopoDS_Edge& E2);
177 
178   //! Returns the outer most wire of <F>. Returns a Null
179   //! wire if <F> has no wires.
180   Standard_EXPORT static TopoDS_Wire OuterWire (const TopoDS_Face& F);
181 
182   //! Stores in the map  <M> all the 3D topology edges
183   //! of <S>.
184   Standard_EXPORT static void Map3DEdges (const TopoDS_Shape& S, TopTools_IndexedMapOfShape& M);
185 
186   //! Verifies that the edge  <E> is found two  times on
187   //! the face <F> before calling BRep_Tool::IsClosed.
188   Standard_EXPORT static Standard_Boolean IsReallyClosed (const TopoDS_Edge& E, const TopoDS_Face& F);
189 
190   //! Detect closedness of face in U and V directions
191   Standard_EXPORT static void DetectClosedness (const TopoDS_Face& theFace,
192                                                 Standard_Boolean&  theUclosed,
193                                                 Standard_Boolean&  theVclosed);
194 
195   //! Dumps the topological structure and the geometry
196   //! of <Sh> on the stream <S>.
197   Standard_EXPORT static void Dump (const TopoDS_Shape& Sh, Standard_OStream& S);
198 
199   //! Writes <Sh> on <S> in an ASCII format.
200   Standard_EXPORT static void Write (const TopoDS_Shape& Sh, Standard_OStream& S, const Handle(Message_ProgressIndicator)& PR = NULL);
201 
202   //! Reads a Shape  from <S> in  returns it in  <Sh>.
203   //! <B> is used to build the shape.
204   Standard_EXPORT static void Read (TopoDS_Shape& Sh, Standard_IStream& S, const BRep_Builder& B, const Handle(Message_ProgressIndicator)& PR = NULL);
205 
206   //! Writes <Sh> in <File>.
207   Standard_EXPORT static Standard_Boolean Write (const TopoDS_Shape& Sh, const Standard_CString File, const Handle(Message_ProgressIndicator)& PR = NULL);
208 
209   //! Reads a Shape  from <File>,  returns it in  <Sh>.
210   //! <B> is used to build the shape.
211   Standard_EXPORT static Standard_Boolean Read (TopoDS_Shape& Sh, const Standard_CString File, const BRep_Builder& B, const Handle(Message_ProgressIndicator)& PR = NULL);
212 
213   //! Evals real tolerance of edge  <theE>.
214   //! <theC3d>, <theC2d>, <theS>, <theF>, <theL> are
215   //! correspondently 3d curve of edge, 2d curve on surface <theS> and
216   //! rang of edge
217   //! If calculated tolerance is more then current edge tolerance, edge is updated.
218   //! Method returns actual tolerance of edge
219   Standard_EXPORT static Standard_Real EvalAndUpdateTol(const TopoDS_Edge& theE,
220                                                         const Handle(Geom_Curve)& theC3d,
221                                                         const Handle(Geom2d_Curve) theC2d,
222                                                         const Handle(Geom_Surface)& theS,
223                                                         const Standard_Real theF,
224                                                         const Standard_Real theL);
225 
226 
227 
228 protected:
229 
230 
231 
232 
233 
234 private:
235 
236 
237 
238 
239 friend class BRepTools_WireExplorer;
240 friend class BRepTools_Modification;
241 friend class BRepTools_Modifier;
242 friend class BRepTools_TrsfModification;
243 friend class BRepTools_NurbsConvertModification;
244 friend class BRepTools_GTrsfModification;
245 friend class BRepTools_Substitution;
246 friend class BRepTools_Quilt;
247 friend class BRepTools_ShapeSet;
248 friend class BRepTools_ReShape;
249 
250 };
251 
252 
253 
254 
255 
256 
257 
258 #endif // _BRepTools_HeaderFile
259