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1 | -- Created on: 1997-04-22 |
2 | -- Created by: Guest Design |
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 MultipleConnectedInteractive from AIS inherits InteractiveObject from AIS |
18 | |
19 | |
20 | ---Purpose: Defines an Interactive Object by gathering together |
21 | -- several object presentations. This is done through a |
22 | -- list of interactive objects. These can also be |
23 | -- Connected objects. That way memory-costly |
24 | -- calculations of presentation are avoided. |
25 | |
26 | |
27 | uses |
28 | |
29 | |
30 | TypeOfPresentation3d from PrsMgr, |
31 | InteractiveObject from AIS, |
32 | Boolean from Standard, |
33 | SequenceOfInteractive from AIS, |
34 | KindOfInteractive from AIS, |
35 | PresentationManager3d from PrsMgr, |
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36 | Presentation from Prs3d, |
37 | Projector from Prs3d, |
38 | Transformation from Geom, |
39 | Integer from Standard, |
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40 | Selection from SelectMgr, |
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41 | Trsf from gp, |
42 | Pnt from gp, |
43 | TransModeFlags from Graphic3d |
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44 | |
45 | is |
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46 | |
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47 | Create |
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48 | returns MultipleConnectedInteractive from AIS; |
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49 | ---Purpose: Initializes the Interactive Object with multiple |
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50 | -- connections to AIS_Interactive objects. |
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51 | |
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52 | Connect (me : mutable; |
53 | theInteractive : InteractiveObject from AIS) |
54 | returns InteractiveObject from AIS; |
55 | ---Purpose: Establishes the connection between the Connected Interactive Object, theInteractive, and its reference. |
56 | -- Copies local transformation and transformation persistence mode from theInteractive. |
57 | -- @return created instance object (AIS_ConnectedInteractive or AIS_MultipleConnectedInteractive) |
58 | |
59 | Connect (me : mutable; |
60 | theInteractive : InteractiveObject from AIS; |
61 | theLocation : Trsf from gp) |
62 | returns InteractiveObject from AIS; |
63 | ---Purpose: Establishes the connection between the Connected Interactive Object, theInteractive, and its reference. |
64 | -- Locates instance in theLocation and copies transformation persistence mode from theInteractive. |
65 | -- @return created instance object (AIS_ConnectedInteractive or AIS_MultipleConnectedInteractive) |
66 | |
67 | Connect (me : mutable; |
68 | theInteractive : InteractiveObject from AIS; |
69 | theLocation : Trsf from gp; |
70 | theTrsfPersFlag : TransModeFlags from Graphic3d; |
71 | theTrsfPersPoint : Pnt from gp ) |
72 | returns InteractiveObject from AIS |
73 | is virtual; |
74 | ---Purpose: Establishes the connection between the Connected Interactive Object, theInteractive, and its reference. |
75 | -- Locates instance in theLocation and applies specified transformation persistence mode. |
76 | -- @return created instance object (AIS_ConnectedInteractive or AIS_MultipleConnectedInteractive) |
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77 | |
78 | Type(me) returns KindOfInteractive from AIS |
79 | is redefined virtual; |
80 | |
81 | Signature(me) returns Integer from Standard |
82 | is redefined virtual; |
83 | |
84 | HasConnection(me) returns Boolean from Standard; |
85 | ---Purpose: Returns true if the object is connected to others. |
86 | |
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87 | Disconnect(me : mutable; |
88 | theInteractive : InteractiveObject from AIS); |
89 | ---Purpose: Removes the connection with theInteractive. |
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90 | |
91 | DisconnectAll(me:mutable); |
92 | ---Purpose: Clears all the connections to objects. |
93 | |
94 | Compute(me:mutable; |
95 | aPresentationManager : PresentationManager3d from PrsMgr; |
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96 | aPresentation : Presentation from Prs3d; |
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97 | aMode : Integer from Standard = 0) |
98 | ---Level: Internal |
99 | ---Purpose: this method is redefined virtual; |
100 | -- when the instance is connected to another |
101 | -- InteractiveObject,this method doesn't |
102 | -- compute anything, but just uses the |
103 | -- presentation of this last object, with |
104 | -- a transformation if there's one stored. |
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105 | is redefined virtual protected; |
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106 | |
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107 | Compute(me : mutable; |
108 | aProjector : Projector from Prs3d; |
109 | aTrsf : Transformation from Geom; |
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110 | aPresentation : Presentation from Prs3d) |
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111 | is redefined; |
112 | ---Purpose: computes the presentation according to a point of view |
113 | -- given by <aProjector>. |
114 | -- To be Used when the associated degenerated Presentations |
115 | -- have been transformed by <aTrsf> which is not a Pure |
116 | -- Translation. The HLR Prs can't be deducted automatically |
117 | -- WARNING :<aTrsf> must be applied |
118 | -- to the object to display before computation !!! |
119 | |
120 | Compute(me:mutable; |
121 | aProjector: Projector from Prs3d; |
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122 | aPresentation: Presentation from Prs3d) |
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123 | is redefined ; |
124 | |
125 | AcceptShapeDecomposition(me) returns Boolean from Standard is redefined virtual; |
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126 | ---Purpose: Informs the graphic context that the interactive Object |
127 | -- may be decomposed into sub-shapes for dynamic selection. |
128 | |
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129 | |
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130 | ComputeSelection(me:mutable; aSelection : Selection from SelectMgr; |
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131 | aMode : Integer from Standard) |
132 | is redefined virtual private; |
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133 | ---Purpose: Computes the selection for whole subtree in scene hierarchy. |
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134 | |
135 | |
136 | |
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137 | |
138 | end MultipleConnectedInteractive; |