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1 | -- Created on: 1990-12-20 |
2 | -- Created by: Remi Lequette |
3 | -- Copyright (c) 1990-1999 Matra Datavision |
4 | -- Copyright (c) 1999-2012 OPEN CASCADE SAS |
5 | -- |
6 | -- The content of this file is subject to the Open CASCADE Technology Public |
7 | -- License Version 6.5 (the "License"). You may not use the content of this file |
8 | -- except in compliance with the License. Please obtain a copy of the License |
9 | -- at http://www.opencascade.org and read it completely before using this file. |
10 | -- |
11 | -- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
12 | -- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
13 | -- |
14 | -- The Original Code and all software distributed under the License is |
15 | -- distributed on an "AS IS" basis, without warranty of any kind, and the |
16 | -- Initial Developer hereby disclaims all such warranties, including without |
17 | -- limitation, any warranties of merchantability, fitness for a particular |
18 | -- purpose or non-infringement. Please see the License for the specific terms |
19 | -- and conditions governing the rights and limitations under the License. |
20 | |
7fd59977 |
21 | |
22 | |
23 | package TopExp |
24 | |
25 | ---Purpose: This package provides basic tools to explore the |
26 | -- topological data structures. |
27 | -- |
28 | -- * Explorer : A tool to find all sub-shapes of a given |
29 | -- type. e.g. all faces of a solid. |
30 | -- |
31 | -- * Package methods to map sub-shapes of a shape. |
32 | -- |
33 | -- Level : Public |
34 | -- All methods of all classes will be public. |
35 | |
36 | |
37 | uses |
38 | |
39 | TCollection, |
40 | TopLoc, |
41 | TopAbs, |
42 | TopoDS, |
43 | TopTools |
44 | |
45 | is |
46 | |
47 | private class StackOfIterator instantiates |
48 | Stack from TCollection (Iterator from TopoDS); |
49 | |
50 | pointer Stack to Iterator from TopoDS; |
51 | |
52 | class Explorer; |
53 | ---Purpose: Tool to explore a topological data structure. |
54 | |
55 | -- |
56 | -- Package methods |
57 | -- |
58 | |
59 | |
60 | MapShapes(S : Shape from TopoDS; |
61 | T : ShapeEnum from TopAbs; |
62 | M : in out IndexedMapOfShape from TopTools); |
63 | ---Purpose: Stores in the map <M> all the sub-shapes of <S> |
64 | -- of type <T>. |
65 | -- |
66 | -- Warning: The map is not cleared at first. |
67 | |
68 | MapShapes(S : Shape from TopoDS; |
69 | M : in out IndexedMapOfShape from TopTools); |
70 | ---Purpose: Stores in the map <M> all the sub-shapes of <S>. |
71 | |
72 | MapShapesAndAncestors |
73 | (S : Shape from TopoDS; |
74 | TS : ShapeEnum from TopAbs; |
75 | TA : ShapeEnum from TopAbs; |
76 | M : in out IndexedDataMapOfShapeListOfShape from TopTools); |
77 | ---Purpose: Stores in the map <M> all the subshape of <S> of |
78 | -- type <TS> for each one append to the list all |
79 | -- the ancestors of type <TA>. For example map all |
80 | -- the edges and bind the list of faces. |
81 | -- Warning: The map is not cleared at first. |
82 | |
83 | FirstVertex(E : Edge from TopoDS; |
84 | CumOri : Boolean from Standard = Standard_False) |
85 | returns Vertex from TopoDS; |
86 | ---Purpose: Returns the Vertex of orientation FORWARD in E. If |
87 | -- there is none returns a Null Shape. |
88 | -- CumOri = True : taking account the edge orientation |
89 | |
90 | LastVertex(E : Edge from TopoDS; |
91 | CumOri : Boolean from Standard = Standard_False) |
92 | returns Vertex from TopoDS; |
93 | ---Purpose: Returns the Vertex of orientation REVERSED in E. If |
94 | -- there is none returns a Null Shape. |
95 | -- CumOri = True : taking account the edge orientation |
96 | |
97 | Vertices(E : Edge from TopoDS; Vfirst, Vlast : out Vertex from TopoDS; |
98 | CumOri : Boolean from Standard = Standard_False); |
99 | ---Purpose: Returns in Vfirst, Vlast the FORWARD and REVERSED |
100 | -- vertices of the edge <E>. May be null shapes. |
101 | -- CumOri = True : taking account the edge orientation |
102 | |
103 | Vertices(W : Wire from TopoDS; Vfirst, Vlast : out Vertex from TopoDS); |
104 | ---Purpose: Returns in Vfirst, Vlast the first and last |
105 | -- vertices of the open wire <W>. May be null shapes. |
106 | -- if <W> is closed Vfirst and Vlast are a same |
107 | -- vertex on <W>. |
108 | -- if <W> is no manifold. VFirst and VLast are null |
109 | -- shapes. |
110 | |
111 | CommonVertex( E1, E2 : Edge from TopoDS; |
112 | V : out Vertex from TopoDS) |
113 | returns Boolean; |
114 | ---Purpose: Finds the vertex <V> common to the two edges |
115 | -- <E1,E2>, returns True if this vertex exists. |
116 | -- |
117 | -- Warning: <V> has sense only if the value <True> is returned |
118 | |
119 | end TopExp; |
120 | |
121 | |
122 | |