MeshManager Class Reference

Maintains and manages all meshes. More...

#include <common/common.hh>

Inherits SingletonT< MeshManager >.

Public Member Functions
void	AddMesh (Mesh *_mesh)
	Add a mesh to the manager. More...
void	CreateBox (const std::string &_name, const ignition::math::Vector3d &_sides, const ignition::math::Vector2d &_uvCoords)
	Create a Box mesh. More...
void	CreateCamera (const std::string &_name, float _scale)
	Create a Camera mesh. More...
void	CreateCone (const std::string &_name, float _radius, float _height, int _rings, int _segments)
	Create a cone mesh. More...
void	CreateCylinder (const std::string &_name, float _radius, float _height, int _rings, int _segments)
	Create a cylinder mesh. More...
void	CreateExtrudedPolyline (const std::string &_name, const std::vector< std::vector< ignition::math::Vector2d > > &_vertices, double _height)
	Create an extruded mesh from polylines. More...
void	CreatePlane (const std::string &_name, const ignition::math::Planed &_plane, const ignition::math::Vector2d &_segments, const ignition::math::Vector2d &_uvTile)
	Create mesh for a plane. More...
void	CreatePlane (const std::string &_name, const ignition::math::Vector3d &_normal, const double _d, const ignition::math::Vector2d &_size, const ignition::math::Vector2d &_segments, const ignition::math::Vector2d &_uvTile)
	Create mesh for a plane. More...
void	CreateSphere (const std::string &_name, float _radius, int _rings, int _segments)
	Create a sphere mesh. More...
void	CreateTube (const std::string &_name, float _innerRadius, float _outterRadius, float _height, int _rings, int _segments, double _arc=2.0 *M_PI)
	Create a tube mesh. More...
void	Export (const Mesh *_mesh, const std::string &_filename, const std::string &_extension, bool _exportTextures=false)
	Export a mesh to a file. More...
void	GenSphericalTexCoord (const Mesh *_mesh, const ignition::math::Vector3d &_center)
	generate spherical texture coordinates More...
const Mesh *	GetMesh (const std::string &_name) const
	Get a mesh by name. More...
void	GetMeshAABB (const Mesh *_mesh, ignition::math::Vector3d &_center, ignition::math::Vector3d &_min_xyz, ignition::math::Vector3d &_max_xyz)
	Get mesh aabb and center. More...
bool	HasMesh (const std::string &_name) const
	Return true if the mesh exists. More...
bool	IsValidFilename (const std::string &_filename)
	Checks a path extension against the list of valid extensions. More...
const Mesh *	Load (const std::string &_filename)
	Load a mesh from a file. More...

Static Public Member Functions
static MeshManager *	Instance ()
	Get an instance of the singleton. More...

Detailed Description

Maintains and manages all meshes.

Member Function Documentation

void AddMesh

(

Mesh *

_mesh

)

Add a mesh to the manager.

This MeshManager takes ownership of the mesh and will destroy it. See ~MeshManager.

Parameters

[in]

the

mesh to add.

void CreateBox	(	const std::string &	_name,
		const ignition::math::Vector3d &	_sides,
		const ignition::math::Vector2d &	_uvCoords
	)

Create a Box mesh.

Parameters

[in]	_name	the name of the new mesh
[in]	_sides	the x y x dimentions of eah side in meter
[in]	_uvCoords	the texture coordinates

void CreateCamera	(	const std::string &	_name,
		float	_scale
	)

Create a Camera mesh.

Parameters

[in]	_name	name of the new mesh
[in]	_scale	scaling factor for the camera

void CreateCone	(	const std::string &	_name,
		float	_radius,
		float	_height,
		int	_rings,
		int	_segments
	)

Create a cone mesh.

Parameters

[in]	_name	the name of the new mesh
[in]	_radius	the radius of the cylinder in the x y plane
[in]	_height	the height along z
[in]	_rings	the number of circles along the height
[in]	_segments	the number of segment per circle

void CreateCylinder	(	const std::string &	_name,
		float	_radius,
		float	_height,
		int	_rings,
		int	_segments
	)

Create a cylinder mesh.

Parameters

[in]	_name	the name of the new mesh
[in]	_radius	the radius of the cylinder in the x y plane
[in]	_height	the height along z
[in]	_rings	the number of circles along the height
[in]	_segments	the number of segment per circle

void CreateExtrudedPolyline	(	const std::string &	_name,
		const std::vector< std::vector< ignition::math::Vector2d > > &	_vertices,
		double	_height
	)

Create an extruded mesh from polylines.

The polylines are assumed to be closed and non-intersecting. Delaunay triangulation is applied to create the resulting mesh. If there is more than one polyline, a ray casting algorithm will be used to identify the exterior/interior edges and remove holes from the 2D shape before extrusion.

Parameters

[in]	_name	the name of the new mesh
[in]	_vertices	A multidimensional vector of polylines and their vertices. Each element in the outer vector consists of a vector of vertices that describe one polyline. edges and remove the holes in the shape.
[in]	_height	the height of extrusion

void CreatePlane	(	const std::string &	_name,
		const ignition::math::Planed &	_plane,
		const ignition::math::Vector2d &	_segments,
		const ignition::math::Vector2d &	_uvTile
	)

Create mesh for a plane.

Parameters

[in]	_name
[in]	_plane	plane parameters
[in]	_segments	number of segments in x and y
[in]	_uvTile	the texture tile size in x and y

void CreatePlane	(	const std::string &	_name,
		const ignition::math::Vector3d &	_normal,
		const double	_d,
		const ignition::math::Vector2d &	_size,
		const ignition::math::Vector2d &	_segments,
		const ignition::math::Vector2d &	_uvTile
	)

Create mesh for a plane.

Parameters

[in]	_name	the name of the new mesh
[in]	_normal	the normal to the plane
[in]	_d	distance from the origin along normal
[in]	_size	the size of the plane in x and y
[in]	_segments	the number of segments in x and y
[in]	_uvTile	the texture tile size in x and y

void CreateSphere	(	const std::string &	_name,
		float	_radius,
		int	_rings,
		int	_segments
	)

Create a sphere mesh.

Parameters

[in]	_name	the name of the mesh
[in]	_radius	radius of the sphere in meter
[in]	_rings	number of circles on th y axis
[in]	_segments	number of segment per circle

void CreateTube	(	const std::string &	_name,
		float	_innerRadius,
		float	_outterRadius,
		float	_height,
		int	_rings,
		int	_segments,
		double	_arc = 2.0 *M_PI
	)

Create a tube mesh.

Generates rings inside and outside the cylinder Needs at least two rings and 3 segments

Parameters

[in]	_name	the name of the new mesh
[in]	_innerRadius	the inner radius of the tube in the x y plane
[in]	_outterRadius	the outer radius of the tube in the x y plane
[in]	_height	the height along z
[in]	_rings	the number of circles along the height
[in]	_segments	the number of segment per circle
[in]	_arc	the arc angle in radians

void Export	(	const Mesh *	_mesh,
		const std::string &	_filename,
		const std::string &	_extension,
		bool	_exportTextures = false
	)

Export a mesh to a file.

Parameters

[in]	_mesh	Pointer to the mesh to be exported
[in]	_filename	Exported file's path and name
[in]	_extension	Exported file's format ("dae" for Collada)
[in]	_exportTextures	True to export texture images to '../materials/textures' folder

void GenSphericalTexCoord	(	const Mesh *	_mesh,
		const ignition::math::Vector3d &	_center
	)

generate spherical texture coordinates

Parameters

[in]	_mesh	Pointer to the mesh
[in]	_center	Center of the mesh

const Mesh* GetMesh

(

const std::string &

_name

)

const

Get a mesh by name.

Parameters

[in]

_name

the name of the mesh to look for

Returns

the mesh or nullptr if not found

void GetMeshAABB	(	const Mesh *	_mesh,
		ignition::math::Vector3d &	_center,
		ignition::math::Vector3d &	_min_xyz,
		ignition::math::Vector3d &	_max_xyz
	)

Get mesh aabb and center.

Parameters

[in]	_mesh	the mesh
[out]	_center	the AAB center position
[out]	_min_xyz	the bounding box minimum
[out]	_max_xyz	the bounding box maximum

bool HasMesh

(

const std::string &

_name

)

const

Return true if the mesh exists.

Parameters

[in]

_name

the name of the mesh

static MeshManager * Instance ( )

inlinestaticinherited

Get an instance of the singleton.

bool IsValidFilename

(

const std::string &

_filename

)

Checks a path extension against the list of valid extensions.

Returns

true if the file extension is loadable

const Mesh* Load

(

const std::string &

_filename

)

Load a mesh from a file.

Parameters

[in]

_filename

the path to the mesh

Returns

a pointer to the created mesh

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

• MeshManager.hh