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1 | // Created on: 2005-01-21 |
2 | // Created by: Alexander SOLOVYOV |
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3 | // Copyright (c) 2005-2014 OPEN CASCADE SAS |
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4 | // |
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5 | // This file is part of Open CASCADE Technology software library. |
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6 | // |
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7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
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12 | // |
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13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
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15 | |
16 | #include <MeshVS_DataSource3D.ixx> |
17 | |
18 | //================================================================ |
19 | // Function : GetPrismTopology |
20 | // Purpose : |
21 | //================================================================ |
22 | Handle( MeshVS_HArray1OfSequenceOfInteger ) |
23 | MeshVS_DataSource3D::GetPrismTopology( const Standard_Integer BasePoints ) const |
24 | { |
25 | if( myPrismTopos.IsBound( BasePoints ) ) |
26 | return myPrismTopos.Find( BasePoints ); |
27 | else |
28 | { |
29 | Handle( MeshVS_HArray1OfSequenceOfInteger ) result = CreatePrismTopology( BasePoints ); |
30 | if( !result.IsNull() ) |
31 | ( ( MeshVS_DataSource3D* )this )->myPrismTopos.Bind( BasePoints, result ); |
32 | return result; |
33 | } |
34 | } |
35 | |
36 | //================================================================ |
37 | // Function : GetPyramidTopology |
38 | // Purpose : |
39 | //================================================================ |
40 | Handle( MeshVS_HArray1OfSequenceOfInteger ) |
41 | MeshVS_DataSource3D::GetPyramidTopology( const Standard_Integer BasePoints ) const |
42 | { |
43 | if( myPyramidTopos.IsBound( BasePoints ) ) |
44 | return myPyramidTopos.Find( BasePoints ); |
45 | else |
46 | { |
47 | Handle( MeshVS_HArray1OfSequenceOfInteger ) result = CreatePyramidTopology( BasePoints ); |
48 | if( !result.IsNull() ) |
49 | ( ( MeshVS_DataSource3D* )this )->myPyramidTopos.Bind( BasePoints, result ); |
50 | return result; |
51 | } |
52 | } |
53 | |
54 | //================================================================ |
55 | // Function : CreatePrismTopology |
56 | // Purpose : |
57 | //================================================================ |
58 | Handle( MeshVS_HArray1OfSequenceOfInteger ) |
59 | MeshVS_DataSource3D::CreatePrismTopology( const Standard_Integer BasePoints ) |
60 | { |
61 | Handle( MeshVS_HArray1OfSequenceOfInteger ) result; |
62 | |
63 | if( BasePoints>=3 ) |
64 | { |
65 | result = new MeshVS_HArray1OfSequenceOfInteger( 1, BasePoints+2 ); |
66 | Standard_Integer i, next; |
67 | |
68 | for( i=0; i<BasePoints; i++ ) |
69 | { |
70 | result->ChangeValue( 1 ).Prepend( i ); |
71 | result->ChangeValue( 2 ).Append( i+BasePoints ); |
72 | |
73 | result->ChangeValue( 3+i ).Prepend( i ); |
74 | result->ChangeValue( 3+i ).Prepend( i+BasePoints ); |
75 | next = ( i+1 ) % BasePoints; |
76 | result->ChangeValue( 3+i ).Prepend( next+BasePoints ); |
77 | result->ChangeValue( 3+i ).Prepend( next ); |
78 | } |
79 | } |
80 | |
81 | return result; |
82 | } |
83 | |
84 | //================================================================ |
85 | // Function : CreatePyramidTopology |
86 | // Purpose : |
87 | //================================================================ |
88 | Handle( MeshVS_HArray1OfSequenceOfInteger ) |
89 | MeshVS_DataSource3D::CreatePyramidTopology( const Standard_Integer BasePoints ) |
90 | { |
91 | Handle( MeshVS_HArray1OfSequenceOfInteger ) result; |
92 | |
93 | if( BasePoints>=3 ) |
94 | { |
95 | result = new MeshVS_HArray1OfSequenceOfInteger( 1, BasePoints+1 ); |
96 | |
97 | for( Standard_Integer i=1; i<=BasePoints; i++ ) |
98 | { |
99 | result->ChangeValue( 1 ).Prepend( i ); |
100 | result->ChangeValue( 1+i ).Append( 0 ); |
101 | result->ChangeValue( 1+i ).Append( i ); |
102 | result->ChangeValue( 1+i ).Append( i%BasePoints + 1 ); |
103 | } |
104 | } |
105 | |
106 | return result; |
107 | } |