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1 | -- Created on: 1997-02-12 |
2 | -- Created by: Alexander BRIVIN |
3 | -- Copyright (c) 1997-1999 Matra Datavision |
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4 | -- Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | -- |
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6 | -- This file is part of Open CASCADE Technology software library. |
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7 | -- |
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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 |
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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. |
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13 | -- |
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14 | -- Alternatively, this file may be used under the terms of Open CASCADE |
15 | -- commercial license or contractual agreement. |
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16 | |
17 | class Switch from Vrml |
18 | |
19 | ---Purpose: defines a Switch node of VRML specifying group properties. |
20 | -- This group node traverses one, none, or all of its children. |
21 | -- One can use this node to switch on and off the effects of some |
22 | -- properties or to switch between different properties. |
23 | -- The whichChild field specifies the index of the child to traverse, |
24 | -- where the first child has index 0. |
25 | -- A value of -1 (the default) means do not traverse any children. |
26 | -- A value of -3 traverses all children, making the switch behave exactly |
27 | -- like a regular Group. |
28 | is |
29 | |
30 | Create ( aWhichChild : Integer from Standard = -1 ) |
31 | returns Switch from Vrml; |
32 | |
33 | SetWhichChild ( me: in out; aWhichChild : Integer from Standard ); |
34 | WhichChild ( me ) returns Integer from Standard; |
35 | |
36 | Print ( me; anOStream: in out OStream from Standard) returns OStream from Standard; |
37 | ---C++: return & |
38 | |
39 | fields |
40 | |
41 | myWhichChild : Integer from Standard; -- Child to traverse |
42 | |
43 | end Switch; |
44 | |