WebSVN – gelsvn – Diff – /trunk/src/Geometry/TriMesh.h/


#ifndef __GEOMETRY_TRIMESH_H__
#define __GEOMETRY_TRIMESH_H__
 
#include <CGLA/Mat4x4f.h>
#include "IndexedFaceSet.h"
#include "Material.h"
 
namespace Geometry
{
 
 
	/** \brief A Triangle Mesh struct. 
 
	    This struct contains three indexed face sets, one for geometry,
			textures, and normals. It also contains a vector of materials and a
			vector of texture maps.
 
			A number of functions are defined allowing for rendering of the triangle
			mesh. */
	class TriMesh 
	{
		public:
		
		// ------- DATA -------
 
		/// Name of model
		std::string name;
		
		/// Indexed face set for the actual geometry
		IndexedFaceSet geometry;
 
		/// Indexed face set for the normals
		IndexedFaceSet normals;
 
		/// Indexed face set for the texture coordinates.
		IndexedFaceSet texcoords;
 
		/// Material indices for all faces
		std::vector<int> mat_idx;
 
		/// Texture indices for all faces
		std::vector<int> tex_idx;
 
		/// Vector of materials
		std::vector<Material> materials;
 
    /// Vector of triangle face areas
    std::vector<float> face_areas;
 
    /// Tabulated cumulative distribution function for sampling triangles according to area
    std::vector<float> face_area_cdf;
 
    /// Total surface area of the triangle mesh
    float surface_area;
 
		// -------- FUNCTIONS -----------
 
		/// Get an axis aligned bounding box for the model.
		bool get_bbox(CGLA::Vec3f& p0, CGLA::Vec3f& p7) const;
 
		/// Get a bounding sphere for the model.
		bool get_bsphere(CGLA::Vec3f& c, float& r) const;
 
		/// Returns true if at least one normal has been defined.
		bool has_normals() const 
		{
			return normals.no_faces()>0;
		}
		
		/// Find a material from its name
		int find_material(const std::string&) const;
 
		/// Compute normals for the mesh. Does not check if there are normals.
		void compute_normals();
 
    /// Compute areas for all faces and total surface area.
    void compute_areas();
 
    /// Apply a transformation matrix to the mesh
    void transform(CGLA::Mat4x4f m);
	};
 
 
}
#endif
 

Rev 443	Rev 567
1	`#ifndef __GEOMETRY_TRIMESH_H__`	1	`#ifndef __GEOMETRY_TRIMESH_H__`
2	`#define __GEOMETRY_TRIMESH_H__`	2	`#define __GEOMETRY_TRIMESH_H__`
3		3
4	`#include <CGLA/Mat4x4f.h>`	4	`#include <CGLA/Mat4x4f.h>`
5	`#include "IndexedFaceSet.h"`	5	`#include "IndexedFaceSet.h"`
6	`#include "Material.h"`	6	`#include "Material.h"`
7		7
8	`namespace Geometry`	8	`namespace Geometry`
9	`{`	9	`{`
10		10
11		11
12	`/** \brief A Triangle Mesh struct.`	12	`/** \brief A Triangle Mesh struct.`
13		13
14	`This struct contains three indexed face sets, one for geometry,`	14	`This struct contains three indexed face sets, one for geometry,`
15	`textures, and normals. It also contains a vector of materials and a`	15	`textures, and normals. It also contains a vector of materials and a`
16	`vector of texture maps.`	16	`vector of texture maps.`
17		17
18	`A number of functions are defined allowing for rendering of the triangle`	18	`A number of functions are defined allowing for rendering of the triangle`
19	`mesh. */`	19	`mesh. */`
20	`class TriMesh`	20	`class TriMesh`
21	`{`	21	`{`
22	`public:`	22	`public:`
23		23
24	`// ------- DATA -------`	24	`// ------- DATA -------`
25		25
26	`/// Name of model`	26	`/// Name of model`
27	`std::string name;`	27	`std::string name;`
28		28
29	`/// Indexed face set for the actual geometry`	29	`/// Indexed face set for the actual geometry`
30	`IndexedFaceSet geometry;`	30	`IndexedFaceSet geometry;`
31		31
32	`/// Indexed face set for the normals`	32	`/// Indexed face set for the normals`
33	`IndexedFaceSet normals;`	33	`IndexedFaceSet normals;`
34		34
35	`/// Indexed face set for the texture coordinates.`	35	`/// Indexed face set for the texture coordinates.`
36	`IndexedFaceSet texcoords;`	36	`IndexedFaceSet texcoords;`
37		37
38	`/// Material indices for all faces`	38	`/// Material indices for all faces`
39	`std::vector<int> mat_idx;`	39	`std::vector<int> mat_idx;`
40		40
41	`/// Texture indices for all faces`	41	`/// Texture indices for all faces`
42	`std::vector<int> tex_idx;`	42	`std::vector<int> tex_idx;`
43		43
44	`/// Vector of materials`	44	`/// Vector of materials`
45	`std::vector<Material> materials;`	45	`std::vector<Material> materials;`
46		46
-		47	`/// Vector of triangle face areas`
-		48	`std::vector<float> face_areas;`
-		49
-		50	`/// Tabulated cumulative distribution function for sampling triangles according to area`
-		51	`std::vector<float> face_area_cdf;`
-		52
-		53	`/// Total surface area of the triangle mesh`
-		54	`float surface_area;`
-		55
47	`// -------- FUNCTIONS -----------`	56	`// -------- FUNCTIONS -----------`
48		57
49	`/// Get an axis aligned bounding box for the model.`	58	`/// Get an axis aligned bounding box for the model.`
50	`bool get_bbox(CGLA::Vec3f& p0, CGLA::Vec3f& p7) const;`	59	`bool get_bbox(CGLA::Vec3f& p0, CGLA::Vec3f& p7) const;`
51		60
52	`/// Get a bounding sphere for the model.`	61	`/// Get a bounding sphere for the model.`
53	`bool get_bsphere(CGLA::Vec3f& c, float& r) const;`	62	`bool get_bsphere(CGLA::Vec3f& c, float& r) const;`
54		63
55	`/// Returns true if at least one normal has been defined.`	64	`/// Returns true if at least one normal has been defined.`
56	`bool has_normals() const`	65	`bool has_normals() const`
57	`{`	66	`{`
58	`return normals.no_faces()>0;`	67	`return normals.no_faces()>0;`
59	`}`	68	`}`
60		69
61	`/// Find a material from its name`	70	`/// Find a material from its name`
62	`int find_material(const std::string&) const;`	71	`int find_material(const std::string&) const;`
63		72
64	`/// Compute normals for the mesh. Does not check if there are normals.`	73	`/// Compute normals for the mesh. Does not check if there are normals.`
65	`void compute_normals();`	74	`void compute_normals();`
66		75
-		76	`/// Compute areas for all faces and total surface area.`
-		77	`void compute_areas();`
-		78
67	`/// Apply a transformation matrix to the mesh`	79	`/// Apply a transformation matrix to the mesh`
68	`void transform(CGLA::Mat4x4f m);`	80	`void transform(CGLA::Mat4x4f m);`
69	`};`	81	`};`
70		82
71		83
72	`}`	84	`}`
73	`#endif`	85	`#endif`
74		86

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(root)/trunk/src/Geometry/TriMesh.h/ – Rev 443 → 567