blob: cb11682f84c7587e3703f740f6badd4fedf7fe68 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
-- File: PPoly_Triangulation.cdl
-- Created: Tue Oct 24 10:37:04 1995
-- Author: Mister rmi
-- <rmi@pronox>
---Copyright: Matra Datavision 1995
class Triangulation from PPoly inherits Persistent from Standard
---Purpose: This class represents a 3d polyhedral triangulation.
--
-- It is defined by :
--
-- * A Deflection : This is the distance between the
-- triangulation and the "ideal" surface.
--
-- * An Array1 of 3d nodes values : Contains the
-- Points for the 3d nodes. Two different nodes may
-- have the same 3d point if they are differents in
-- UV space.
--
-- * An Array1 of 2d nodes values : Contains the UV
-- coordinates for the nodes in the surface
-- parametric space. This is optionnal.
--
-- * The Array of triangles, each triangle is a
-- triplet of node indices. A triangle is oriented
-- and the whole triangulation must have a coherent
-- orientation.
uses
HArray1OfPnt2d from PColgp,
HArray1OfPnt from PColgp,
HArray1OfTriangle from PPoly
is
Create(Defl: Real from Standard;
Nodes: HArray1OfPnt from PColgp;
Triangles: HArray1OfTriangle from PPoly)
returns mutable Triangulation from PPoly;
---Purpose: Defaults with allocation of Nodes and Triangles.
Create(Defl: Real from Standard;
Nodes: HArray1OfPnt from PColgp;
UVNodes: HArray1OfPnt2d from PColgp;
Triangles: HArray1OfTriangle from PPoly)
returns mutable Triangulation from PPoly;
---Purpose: Defaults with allocation of Nodes and Triangles.
Deflection(me) returns Real;
Deflection(me : mutable; D : Real);
NbNodes(me) returns Integer;
---Purpose: Null if the nodes are not yet defined.
NbTriangles(me) returns Integer;
---Purpose: Null if the Triangles are not yet defined.
HasUVNodes(me) returns Boolean;
Nodes(me) returns HArray1OfPnt from PColgp;
---Purpose: Const reference on the 3d nodes values.
UVNodes(me) returns HArray1OfPnt2d from PColgp;
---Purpose: Const reference on the 2d nodes values.
Triangles(me) returns HArray1OfTriangle from PPoly;
---Purpose: Const reference on the triangles.
fields
myDeflection : Real;
myNodes : HArray1OfPnt from PColgp;
myUVNodes : HArray1OfPnt2d from PColgp;
myTriangles : HArray1OfTriangle from PPoly;
end Triangulation;
|
