Subversion Repositories gelsvn

Rev

Rev 601 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 601 Rev 622
Line 1... Line 1...
1 
/* ----------------------------------------------------------------------- *
 1 
/* ----------------------------------------------------------------------- *
2 
 * This file is part of GEL, http://www.imm.dtu.dk/GEL
 2 
* This file is part of GEL, http://www.imm.dtu.dk/GEL
3 
 * Copyright (C) the authors and DTU Informatics
 3 
* Copyright (C) the authors and DTU Informatics
4 
 * For license and list of authors, see ../../doc/intro.pdf
 4 
* For license and list of authors, see ../../doc/intro.pdf
5 
 * ----------------------------------------------------------------------- */
 5 
* ----------------------------------------------------------------------- */
6 
 
 6 
 
7 
/**
 7 
/**
8 
 * @file TriMesh.h
 8 
* @file TriMesh.h
9 
 * @brief Triangle mesh class based on indexed face set data structure.
 9 
* @brief Triangle mesh class based on indexed face set data structure.
10 
 */
 10 
*/
11 
 
 11 
 
12 
#ifndef __GEOMETRY_TRIMESH_H__
 12 
#ifndef __GEOMETRY_TRIMESH_H__
13 
#define __GEOMETRY_TRIMESH_H__
 13 
#define __GEOMETRY_TRIMESH_H__
14 
 
 14 
 
15 
#include "../CGLA/Mat4x4f.h"
 15 
#include "../CGLA/Mat4x4f.h"
16 
#include "IndexedFaceSet.h"
 16 
#include "IndexedFaceSet.h"
17 
#include "Material.h"
 17 
#include "Material.h"
18 
 
 18 
 
19 
namespace Geometry
 19 
namespace Geometry
20 
{
 20 
{
- 
 
 21 
  /** \brief A Triangle Mesh struct.
21 
 
 22 
 
22 
 
 - 
 
23 
	/** \brief A Triangle Mesh struct.
- 
 
24 
 
 - 
 
25 
	    This struct contains three indexed face sets, one for geometry,
 23 
      This struct contains three indexed face sets, one for geometry,
26 
			textures, and normals. It also contains a vector of materials and a
 24 
      textures, and normals. It also contains a vector of materials and a
27 
			vector of texture maps.
 25 
      vector of texture maps.
28 
 
 26 
 
29 
			A number of functions are defined allowing for rendering of the triangle
 27 
      A number of functions are defined allowing for rendering of the triangle
30 
			mesh. */
 28 
      mesh. */
31 
	class TriMesh
29 
  class TriMesh
32 
	{
 30 
  {
33 
		public:
 31 
  public:
34
32
35 
		// ------- DATA -------
 33 
    // ------- DATA -------
36 
 
 34 
 
37 
		/// Name of model
 35 
    /// Name of model
38 
		std::string name;
 36 
    std::string name;
39
37
40 
		/// Indexed face set for the actual geometry
 38 
    /// Indexed face set for the actual geometry
41 
		IndexedFaceSet geometry;
 39 
    IndexedFaceSet geometry;
42 
 
 40 
 
43 
		/// Indexed face set for the normals
 41 
    /// Indexed face set for the normals
44 
		IndexedFaceSet normals;
 42 
    IndexedFaceSet normals;
45 
 
 43 
 
46 
		/// Indexed face set for the texture coordinates.
 44 
    /// Indexed face set for the texture coordinates.
47 
		IndexedFaceSet texcoords;
 45 
    IndexedFaceSet texcoords;
48 
 
 46 
 
49 
		/// Material indices for all faces
 47 
    /// Material indices for all faces
50 
		std::vector<int> mat_idx;
 48 
    std::vector<int> mat_idx;
51 
 
 49 
 
52 
		/// Texture indices for all faces
 50 
    /// Texture indices for all faces
53 
		std::vector<int> tex_idx;
 51 
    std::vector<int> tex_idx;
54 
 
 52 
 
55 
		/// Vector of materials
 53 
    /// Vector of materials
56 
		std::vector<Material> materials;
 54 
    std::vector<Material> materials;
57 
 
 55 
 
58 
    /// Vector of triangle face areas
 56 
    /// Vector of triangle face areas
59 
    std::vector<float> face_areas;
 57 
    std::vector<float> face_areas;
60 
 
 58 
 
61 
    /// Tabulated cumulative distribution function for sampling triangles according to area
 59 
    /// Tabulated cumulative distribution function for sampling triangles according to area
62 
    std::vector<float> face_area_cdf;
 60 
    std::vector<float> face_area_cdf;
63 
 
 61 
 
64 
    /// Total surface area of the triangle mesh
 62 
    /// Total surface area of the triangle mesh
65 
    float surface_area;
 63 
    float surface_area;
66 
 
 64 
 
67 
		// -------- FUNCTIONS -----------
 65 
    // -------- FUNCTIONS -----------
68 
 
 66 
 
69 
		/// Get an axis aligned bounding box for the model.
 67 
    /// Get an axis aligned bounding box for the model.
70 
		bool get_bbox(CGLA::Vec3f& p0, CGLA::Vec3f& p7) const;
 68 
    bool get_bbox(CGLA::Vec3f& p0, CGLA::Vec3f& p7) const;
71 
 
 69 
 
72 
		/// Get a bounding sphere for the model.
 70 
    /// Get a bounding sphere for the model.
73 
		bool get_bsphere(CGLA::Vec3f& c, float& r) const;
 71 
    bool get_bsphere(CGLA::Vec3f& c, float& r) const;
74 
 
 72 
 
75 
		/// Returns true if at least one normal has been defined.
 73 
    /// Returns true if at least one normal has been defined.
76 
		bool has_normals() const
- 
 
77 
		{
 - 
 
78 
			return normals.no_faces()>0;
 74 
    bool has_normals() const { return normals.no_faces() > 0; }
79 
		}
 - 
 
80
75 
 
81 
		/// Find a material from its name
 76 
    /// Find a material from its name
82 
		int find_material(const std::string&) const;
 77 
    int find_material(const std::string&) const;
83 
 
 78 
 
84 
		/// Compute normals for the mesh. Does not check if there are normals.
 79 
    /// Compute normals for the mesh. Does not check if there are normals.
85 
		void compute_normals();
 80 
    void compute_normals();
86 
 
 81 
 
87 
    /// Compute areas for all faces and total surface area.
 82 
    /// Compute areas for all faces and total surface area.
88 
    void compute_areas();
 83 
    void compute_areas();
89 
 
 84 
 
90 
    /// Apply a transformation matrix to the mesh
 85 
    /// Apply a transformation matrix to the mesh
91 
    void transform(CGLA::Mat4x4f m);
 86 
    void transform(const CGLA::Mat4x4f& m);
92 
	};
 - 
 
93 
 
 87 
 
- 
 
 88 
    /// Apply a transformation matrix to the texture coordinates
- 
 
 89 
    void tex_transform(const CGLA::Mat4x4f& m);
94 
 
 90 
 
- 
 
 91 
    /// Apply a transformation matrix to the texture coordinates associated with a particular material
- 
 
 92 
    void tex_transform(const CGLA::Mat4x4f& m, const std::string& material);
- 
 
 93 
  };
95 
}
 94 
}
96 
#endif
 95 
#endif