csgeom/trimesh.h
Go to the documentation of this file.00001 /* 00002 Copyright (C) 2002 by Jorrit Tyberghein 00003 00004 This library is free software; you can redistribute it and/or 00005 modify it under the terms of the GNU Library General Public 00006 License as published by the Free Software Foundation; either 00007 version 2 of the License, or (at your option) any later version. 00008 00009 This library is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 Library General Public License for more details. 00013 00014 You should have received a copy of the GNU Library General Public 00015 License along with this library; if not, write to the Free 00016 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 */ 00018 00019 #ifndef __CS_TRIMESH_H__ 00020 #define __CS_TRIMESH_H__ 00021 00022 #include "csextern.h" 00023 #include "csutil/scf_implementation.h" 00024 00025 #include "csgeom/tri.h" 00026 #include "csgeom/vector3.h" 00027 #include "csgeom/box.h" 00028 #include "igeom/trimesh.h" 00029 00030 #include "csutil/array.h" 00031 #include "csutil/flags.h" 00032 #include "csutil/dirtyaccessarray.h" 00033 00045 class CS_CRYSTALSPACE_EXPORT csTriangleMesh : 00046 public scfImplementation1<csTriangleMesh, iTriangleMesh> 00047 { 00048 protected: 00050 csDirtyAccessArray<csTriangle> triangles; 00051 // The vertices. 00052 csDirtyAccessArray<csVector3> vertices; 00053 00054 uint32 change_nr; 00055 csFlags flags; 00056 00057 public: 00059 csTriangleMesh () : scfImplementationType (this), change_nr (0) { } 00061 csTriangleMesh (const csTriangleMesh& mesh); 00063 virtual ~csTriangleMesh (); 00064 00066 void AddVertex (const csVector3& v); 00068 virtual size_t GetVertexCount () { return vertices.GetSize (); } 00070 size_t GetVertexCount () const { return vertices.GetSize (); } 00072 virtual csVector3* GetVertices () { return vertices.GetArray (); } 00074 const csVector3* GetVertices () const { return vertices.GetArray (); } 00075 00077 void AddTriangle (int a, int b, int c); 00079 void AddTriangleMesh(const csTriangleMesh& tm); 00081 virtual csTriangle* GetTriangles () { return triangles.GetArray (); } 00083 const csTriangle* GetTriangles () const { return triangles.GetArray (); } 00085 csTriangle& GetTriangle (int i) { return triangles[i]; } 00087 size_t GetTriangleCount () const { return triangles.GetSize (); } 00089 virtual size_t GetTriangleCount () { return triangles.GetSize (); } 00090 00092 void Clear (); 00094 void SetSize (int count); 00096 void SetTriangles (csTriangle const* trigs, int count); 00097 00098 virtual void Lock () { } 00099 virtual void Unlock () { } 00100 virtual csFlags& GetFlags () { return flags; } 00101 virtual uint32 GetChangeNumber () const { return change_nr; } 00102 00104 csTriangleMesh& operator+=(const csTriangleMesh& tm); 00105 }; 00106 00112 class CS_CRYSTALSPACE_EXPORT csTriangleVertex 00113 { 00114 public: 00116 csVector3 pos; 00118 int idx; 00119 00121 csArray<size_t> con_triangles; 00122 00124 csArray<int> con_vertices; 00125 00127 csTriangleVertex () { } 00129 ~csTriangleVertex () { } 00131 void AddTriangle (size_t idx); 00133 void AddVertex (int idx); 00134 }; 00135 00140 class CS_CRYSTALSPACE_EXPORT csTriangleVertices 00141 { 00142 protected: 00143 csTriangleVertex* vertices; 00144 int num_vertices; 00145 00146 public: 00148 csTriangleVertices (csTriangleMesh* mesh, csVector3* verts, int num_verts); 00150 ~csTriangleVertices (); 00155 void UpdateVertices (csVector3* verts); 00156 00158 int GetVertexCount () const { return num_vertices; } 00160 csTriangleVertex& GetVertex (int idx) { return vertices[idx]; } 00161 }; 00162 00166 class CS_CRYSTALSPACE_EXPORT csTriangleMeshBox : 00167 public scfImplementation1<csTriangleMeshBox,iTriangleMesh> 00168 { 00169 private: 00170 csVector3 vertices[8]; 00171 csTriangle triangles[12]; 00172 uint32 change_nr; 00173 csFlags flags; 00174 00175 public: 00179 csTriangleMeshBox (const csBox3& box) : scfImplementationType(this) 00180 { 00181 change_nr = 0; 00182 triangles[0].Set (4, 5, 1); 00183 triangles[1].Set (4, 1, 0); 00184 triangles[2].Set (5, 7, 3); 00185 triangles[3].Set (5, 3, 1); 00186 triangles[4].Set (7, 6, 2); 00187 triangles[5].Set (7, 2, 3); 00188 triangles[6].Set (6, 4, 0); 00189 triangles[7].Set (6, 0, 2); 00190 triangles[8].Set (6, 7, 5); 00191 triangles[9].Set (6, 5, 4); 00192 triangles[10].Set (0, 1, 3); 00193 triangles[11].Set (0, 3, 2); 00194 SetBox (box); 00195 00196 flags.SetAll (CS_TRIMESH_CLOSED | CS_TRIMESH_CONVEX); 00197 } 00198 00199 virtual ~csTriangleMeshBox () 00200 { 00201 } 00202 00206 void SetBox (const csBox3& box) 00207 { 00208 change_nr++; 00209 vertices[0] = box.GetCorner (0); 00210 vertices[1] = box.GetCorner (1); 00211 vertices[2] = box.GetCorner (2); 00212 vertices[3] = box.GetCorner (3); 00213 vertices[4] = box.GetCorner (4); 00214 vertices[5] = box.GetCorner (5); 00215 vertices[6] = box.GetCorner (6); 00216 vertices[7] = box.GetCorner (7); 00217 } 00218 00219 virtual size_t GetVertexCount () { return 8; } 00220 virtual csVector3* GetVertices () { return vertices; } 00221 virtual size_t GetTriangleCount () { return 12; } 00222 virtual csTriangle* GetTriangles () { return triangles; } 00223 virtual void Lock () { } 00224 virtual void Unlock () { } 00225 virtual csFlags& GetFlags () { return flags; } 00226 virtual uint32 GetChangeNumber () const { return change_nr; } 00227 }; 00228 00236 class CS_CRYSTALSPACE_EXPORT csTriangleMeshPointer : 00237 public scfImplementation1<csTriangleMeshPointer,iTriangleMesh> 00238 { 00239 private: 00240 csVector3* vertices; 00241 size_t num_vertices; 00242 csTriangle* triangles; 00243 size_t num_triangles; 00244 uint32 change_nr; 00245 csFlags flags; 00246 00247 public: 00251 csTriangleMeshPointer (csVector3* vertices, size_t num_vertices, 00252 csTriangle* triangles, size_t num_triangles) 00253 : scfImplementationType(this) 00254 { 00255 change_nr = 0; 00256 csTriangleMeshPointer::vertices = vertices; 00257 csTriangleMeshPointer::num_vertices = num_vertices; 00258 csTriangleMeshPointer::triangles = triangles; 00259 csTriangleMeshPointer::num_triangles = num_triangles; 00260 } 00261 00262 virtual ~csTriangleMeshPointer () 00263 { 00264 } 00265 00266 virtual size_t GetVertexCount () { return num_vertices; } 00267 virtual csVector3* GetVertices () { return vertices; } 00268 virtual size_t GetTriangleCount () { return num_triangles; } 00269 virtual csTriangle* GetTriangles () { return triangles; } 00270 virtual void Lock () { } 00271 virtual void Unlock () { } 00272 virtual csFlags& GetFlags () { return flags; } 00273 virtual uint32 GetChangeNumber () const { return change_nr; } 00274 }; 00275 00278 #endif // __CS_TRIMESH_H__ 00279
Generated for Crystal Space 2.0 by doxygen 1.6.1