1 -- Created on: 1992-12-15
2 -- Created by: Jean Louis FRENKEL
3 -- Copyright (c) 1992-1999 Matra Datavision
4 -- Copyright (c) 1999-2012 OPEN CASCADE SAS
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.
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.
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.
23 deferred class Root from Prs3d
25 ---Purpose: A root class for the standard presentation algorithms
26 -- of the StdPrs package.
29 Presentation from Prs3d,
30 Structure from Graphic3d,
34 CurrentGroup(myclass; Prs3d: Presentation from Prs3d) returns Group from Graphic3d;
35 ---Purpose: Returns the current group of primititves inside graphic
36 -- objects in the display.
37 -- A group also contains the attributes whose ranges are
38 -- limited to the primitives in it.
40 NewGroup (myclass; Prs3d: Presentation from Prs3d ) returns Group from Graphic3d ;
41 ---Purpose: Returns the new group of primitives inside graphic
42 -- objects in the display.
43 -- A group also contains the attributes whose ranges are limited to the primitives in it.