b311480e |
1 | -- Created on: 1993-03-03 |
2 | -- Created by: Remi LEQUETTE |
3 | -- Copyright (c) 1993-1999 Matra Datavision |
973c2be1 |
4 | -- Copyright (c) 1999-2014 OPEN CASCADE SAS |
b311480e |
5 | -- |
973c2be1 |
6 | -- This file is part of Open CASCADE Technology software library. |
b311480e |
7 | -- |
d5f74e42 |
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 |
973c2be1 |
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. |
b311480e |
13 | -- |
973c2be1 |
14 | -- Alternatively, this file may be used under the terms of Open CASCADE |
15 | -- commercial license or contractual agreement. |
b311480e |
16 | |
7fd59977 |
17 | -- Update: fma |
7fd59977 |
18 | |
19 | |
20 | package PTopLoc |
21 | |
22 | ---Purpose: The PTopLoc package describes persistent |
23 | -- structures for 3D local coordinate systems. |
24 | -- |
25 | -- The class Datum3D describes an elementary local |
26 | -- coordinate system. It is a linear transformation |
27 | -- (Trsf from gp). The transformation is rigid |
28 | -- (Rotation + Translation). |
29 | -- |
30 | -- The private class ItemLocation represents an |
31 | -- elementary local coordinate system (Datum3D) |
32 | -- raised to an Integer power elevation. It is used |
33 | -- to link coordinate systems in a Location. |
34 | -- |
35 | -- The class Location describes a local coordinate |
36 | -- system. It is a chain of elementary local |
37 | -- coordinate systems raised to power elevations. The |
38 | -- Location keeps track of how the coordinate system |
39 | -- was built. |
40 | |
41 | uses |
42 | |
43 | Standard, |
44 | gp |
45 | |
46 | is |
47 | class Datum3D; |
ff8178ef |
48 | |
7fd59977 |
49 | private class ItemLocation; |
ff8178ef |
50 | |
7fd59977 |
51 | class Location; |
7fd59977 |
52 | |
53 | end PTopLoc; |