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isosurf.h
1 //
2 // isosurf.h
3 //
4 // Copyright (C) 1996 Limit Point Systems, Inc.
5 //
6 // Author: Curtis Janssen <cljanss@limitpt.com>
7 // Maintainer: LPS
8 //
9 // This file is part of the SC Toolkit.
10 //
11 // The SC Toolkit is free software; you can redistribute it and/or modify
12 // it under the terms of the GNU Library General Public License as published by
13 // the Free Software Foundation; either version 2, or (at your option)
14 // any later version.
15 //
16 // The SC Toolkit is distributed in the hope that it will be useful,
17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 // GNU Library General Public License for more details.
20 //
21 // You should have received a copy of the GNU Library General Public License
22 // along with the SC Toolkit; see the file COPYING.LIB. If not, write to
23 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 //
25 // The U.S. Government is granted a limited license as per AL 91-7.
26 //
27
28 #ifndef _math_isosurf_isosurf_h
29 #define _math_isosurf_isosurf_h
30
31 #ifdef __GNUC__
32 #pragma interface
33 #endif
34
35 #include <vector>
36
37 #include <math/isosurf/surf.h>
38
39 namespace sc {
40
41 class IsosurfaceGen {
42 protected:
43 double _resolution;
44 public:
45 IsosurfaceGen();
46 virtual ~IsosurfaceGen();
47 virtual void isosurface(double value,
48 TriangulatedSurface& surf) = 0;
49 virtual void set_resolution(double);
50 };
51
52 class ImplicitSurfacePolygonizer: public IsosurfaceGen {
53 // These static data and members are used to interface to the
54 // implicit.c routine provided in Graphics Gems IV.
55 static ImplicitSurfacePolygonizer* current;
56 // The following should not really be used publically.
57 // they are public to permit access through internal
58 // C-language functions.
59 public:
61 static int add_triangle_to_current(int,int,int,VERTICES);
63 static double value_of_current(double x, double y, double z);
64 protected:
65 Ref<Volume> _volume;
66
67 std::vector<Ref<Vertex> > _tmp_vertices;
68
69 TriangulatedSurface* _surf;
70 double _value;
71 public:
72 ImplicitSurfacePolygonizer(const Ref<Volume>&);
73 virtual ~ImplicitSurfacePolygonizer();
74 virtual void isosurface(double value,
75 TriangulatedSurface& surf);
76 };
77
78 }
79
80 #endif
81
82 // Local Variables:
83 // mode: c++
84 // c-file-style: "CLJ"
85 // End: