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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 |
9 | -- under the terms of the GNU Lesser General Public 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. |
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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 OrthographicCamera from Vrml |
18 | |
19 | ---Purpose: specifies a OrthographicCamera node of VRML specifying properties of cameras. |
20 | -- An orthographic camera defines a parallel projection from a viewpoint. This camera does |
21 | -- not diminish objects with distance, as a PerspectiveCamera does. The viewing volume for |
22 | -- an orthographic camera is a rectangular parallelepiped (a box). |
23 | uses |
24 | |
25 | Vec from gp, |
26 | SFRotation from Vrml |
27 | |
28 | is |
29 | -- defaults : |
30 | Create returns OrthographicCamera from Vrml; -- myPosition(0 0 1) |
31 | -- myOrientation(0 0 1 0) |
32 | -- myFocalDistance(5) |
33 | -- myHeight(2) |
34 | -- Camera looks along the negative Z-axis |
35 | Create ( aPosition : Vec from gp; |
36 | aOrientation : SFRotation from Vrml; |
37 | aFocalDistance : Real from Standard; |
38 | aHeight : Real from Standard ) |
39 | returns OrthographicCamera from Vrml; |
40 | |
41 | SetPosition ( me : in out; aPosition : Vec from gp ); |
42 | Position ( me ) returns Vec from gp; |
43 | |
44 | SetOrientation ( me : in out; aOrientation : SFRotation from Vrml ); |
45 | Orientation ( me ) returns SFRotation from Vrml; |
46 | |
47 | SetFocalDistance ( me : in out; aFocalDistance : Real from Standard ); |
48 | FocalDistance ( me ) returns Real from Standard; |
49 | |
50 | SetHeight ( me : in out; aHeight : Real from Standard ); |
51 | Height ( me ) returns Real from Standard; |
52 | |
53 | Print ( me; anOStream: in out OStream from Standard) returns OStream from Standard; |
54 | ---C++: return & |
55 | |
56 | fields |
57 | |
58 | myPosition : Vec from gp; -- Location of viewpoint |
59 | myOrientation : SFRotation from Vrml; -- Orientation (rotation with respect to (0,0,-1) vector) |
60 | myFocalDistance : Real from Standard; -- Distance from viewpoint to point of focus. |
61 | myHeight : Real from Standard; -- Height of view volume |
62 | |
63 | end OrthographicCamera; |
64 | |