Assimp::StandardShapes Class Reference

Helper class to generate vertex buffers for standard geometric shapes, such as cylinders, cones, boxes, spheres, elipsoids ... . More...

#include <StandardShapes.h>

Static Public Member Functions
static void	MakeCircle (ai_real radius, unsigned int tess, std::vector< aiVector3D > &positions)
	Generates a flat circle.
static void	MakeCone (ai_real height, ai_real radius1, ai_real radius2, unsigned int tess, std::vector< aiVector3D > &positions, bool bOpen=false)
	Generates a cone or a cylinder, either open or closed.
static unsigned int	MakeDodecahedron (std::vector< aiVector3D > &positions, bool polygons=false)
	Generates a dodecahedron.
static unsigned int	MakeHexahedron (std::vector< aiVector3D > &positions, bool polygons=false)
	Generates a hexahedron (cube)
static unsigned int	MakeIcosahedron (std::vector< aiVector3D > &positions)
	Generates an icosahedron.
static aiMesh *	MakeMesh (const std::vector< aiVector3D > &positions, unsigned int numIndices)
	Generates a mesh from an array of vertex positions.
static aiMesh *	MakeMesh (unsigned int n, void(*GenerateFunc)(unsigned int, std::vector< aiVector3D > &))
static aiMesh *	MakeMesh (unsigned int(*GenerateFunc)(std::vector< aiVector3D > &))
static aiMesh *	MakeMesh (unsigned int(*GenerateFunc)(std::vector< aiVector3D > &, bool))
static unsigned int	MakeOctahedron (std::vector< aiVector3D > &positions)
	Generates an octahedron.
static void	MakeSphere (unsigned int tess, std::vector< aiVector3D > &positions)
	Generates a sphere.
static unsigned int	MakeTetrahedron (std::vector< aiVector3D > &positions)
	Generates a tetrahedron.

Detailed Description

Helper class to generate vertex buffers for standard geometric shapes, such as cylinders, cones, boxes, spheres, elipsoids ... .

Member Function Documentation

MakeCircle()

static void Assimp::StandardShapes::MakeCircle ( ai_real  radius, unsigned int  tess, std::vector< aiVector3D > &  positions  )

static

Generates a flat circle.

The circle is constructed in the planned formed by the x,z axes of the cartesian coordinate system.

Parameters

radius	Radius of the circle
tess	Number of segments.
positions	Receives output triangles.

MakeCone()

static void Assimp::StandardShapes::MakeCone ( ai_real  height, ai_real  radius1, ai_real  radius2, unsigned int  tess, std::vector< aiVector3D > &  positions, bool  bOpen = false  )

static

Generates a cone or a cylinder, either open or closed.

    |-----|       <- radius 1
 
     __x__        <- ]               ^
    /     \          | height        |
   /       \         |               Y
  /         \        |
 /           \       |
/______x______\   <- ] <- end cap
 
|-------------|   <- radius 2

Parameters

height	Height of the cone
radius1	First radius
radius2	Second radius
tess	Number of triangles.
bOpened	true for an open cone/cylinder. An open shape has no 'end caps'
positions	Receives output triangles

MakeDodecahedron()

static unsigned int Assimp::StandardShapes::MakeDodecahedron ( std::vector< aiVector3D > &  positions, bool  polygons = false  )

static

Generates a dodecahedron.

Parameters

positions	Receives output triangles
polygons	If you pass true here pentagons will be returned

Returns

Number of vertices per face

MakeHexahedron()

static unsigned int Assimp::StandardShapes::MakeHexahedron ( std::vector< aiVector3D > &  positions, bool  polygons = false  )

static

Generates a hexahedron (cube)

Hexahedrons can be scaled on all axes.

Parameters

positions	Receives output triangles.
polygons	If you pass true here quads will be returned

Returns

Number of vertices per face

MakeIcosahedron()

static unsigned int Assimp::StandardShapes::MakeIcosahedron ( std::vector< aiVector3D > &  positions )

static

Generates an icosahedron.

Parameters

positions

Receives output triangles.

Returns

Number of vertices per face

MakeMesh() [1/4]

static aiMesh * Assimp::StandardShapes::MakeMesh ( const std::vector< aiVector3D > &  positions, unsigned int  numIndices  )

static

Generates a mesh from an array of vertex positions.

Parameters

positions	List of vertex positions
numIndices	Number of indices per primitive

Returns

Output mesh

MakeMesh() [2/4]

static aiMesh * Assimp::StandardShapes::MakeMesh ( unsigned int  n, void(*)(unsigned int, std::vector< aiVector3D > &)  GenerateFunc  )

static

MakeMesh() [3/4]

static aiMesh * Assimp::StandardShapes::MakeMesh ( unsigned int(*)(std::vector< aiVector3D > &)  GenerateFunc )

static

MakeMesh() [4/4]

static aiMesh * Assimp::StandardShapes::MakeMesh ( unsigned int(*)(std::vector< aiVector3D > &, bool)  GenerateFunc )

static

MakeOctahedron()

static unsigned int Assimp::StandardShapes::MakeOctahedron ( std::vector< aiVector3D > &  positions )

static

Generates an octahedron.

Parameters

positions

Receives output triangles.

Returns

Number of vertices per face

MakeSphere()

static void Assimp::StandardShapes::MakeSphere ( unsigned int  tess, std::vector< aiVector3D > &  positions  )

static

Generates a sphere.

Parameters

tess	Number of subdivions - 0 generates a octahedron
positions	Receives output triangles.

MakeTetrahedron()

static unsigned int Assimp::StandardShapes::MakeTetrahedron ( std::vector< aiVector3D > &  positions )

static

Generates a tetrahedron.

Parameters

positions

Receives output triangles.

Returns

Number of vertices per face

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The documentation for this class was generated from the following file:

• StandardShapes.h