Physsim::TriangleMesh Class Reference

Represents a triangle mesh "primitive" for inertia properties, collision detection, and visualization. More...

#include <TriangleMesh.h>

Inheritance diagram for Physsim::TriangleMesh:

List of all members.

Public Member Functions
	TriangleMesh (TriangleArrayConstPtr trimesh, bool center=true)
	Constructs this object from the given mesh and optionally centers it.
	TriangleMesh (TriangleArrayConstPtr trimesh, const Matrix4 &T, bool center=true)
	Constructs this triangle mesh using a mesh and the given transform.
	TriangleMesh (const std::string &filename, bool center=true)
	Creates the triangle mesh from a geometry file and optionally centers it.
	TriangleMesh (const std::string &filename, const Matrix4 &T, bool center=true)
	Creates the triangle mesh from a geometry file and optionally centers it.
virtual void	load_from_xml (XMLTreeConstPtr node, std::map< std::string, BasePtr > &id_map)
	Implements Base::load_from_xml().
virtual void	save_to_xml (XMLTreePtr node, std::list< BaseConstPtr > &shared_objects) const
	Implements Base::save_to_xml().
Static Public Member Functions
static void	write_to_obj (const std::string &filename, const std::vector< TriangleConstPtr > &mesh)
	Writes a triangle array to a Wavefront OBJ file.
static TriangleArrayConstPtr	read_from_obj (const std::string &filename)
	Reads a triangle array from a Wavefront OBJ file.
static void	transform_mesh (const std::vector< TrianglePtr > &mesh, const Matrix4 &T)
	Applies a given transform to all triangles in a mesh.
static void	subdivide (std::vector< TrianglePtr > &mesh, Real max_tri_area)
	Subdivides a triangle mesh using Steiner points until no triangle is bigger than the specified area.
static TriangleArrayPtr	clone_mesh (const std::vector< TriangleConstPtr > &mesh)
	Clones a triangle mesh.
template<class ForwardIterator>
static void	get_unique_vertices (ForwardIterator first, ForwardIterator last, std::list< Vector3ConstPtr > &result)
	Gets the set of (unique) vertices from a triangle mesh.
template<class ForwardIterator>
static Real	calc_signed_distance (ForwardIterator first, ForwardIterator last, const Vector3 &point, TriangleConstPtr &closest_tri)
	Computes the signed distance from the triangle mesh to a point.
template<class ForwardIterator>
static Real	calc_signed_distance (ForwardIterator first, ForwardIterator last, const Vector3 &point)
	Computes the signed distance from the triangle mesh to a point.

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Detailed Description

Represents a triangle mesh "primitive" for inertia properties, collision detection, and visualization.

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Member Function Documentation

void TriangleMesh::load_from_xml	(	XMLTreeConstPtr	node,
		std::map< std::string, BasePtr > &	id_map
	)			[virtual]

Implements Base::load_from_xml().

Note:

if centering is done, it is done <i<before any transform is applied

Reimplemented from Physsim::Primitive.

void TriangleMesh::subdivide	(	std::vector< TrianglePtr > &	mesh,
		Real	max_tri_area
	)			[static]

Subdivides a triangle mesh using Steiner points until no triangle is bigger than the specified area.

Note:

the size of the mesh, as well as its ordering, may change

TriangleArrayPtr TriangleMesh::clone_mesh

(

const std::vector< TriangleConstPtr > &

mesh

)

[static]

Clones a triangle mesh.

Note:

ordering is preserving on the cloned mesh

template<class ForwardIterator>

void Physsim::TriangleMesh::get_unique_vertices	(	ForwardIterator	first,
		ForwardIterator	last,
		std::list< Vector3ConstPtr > &	result
	)			[static]

Gets the set of (unique) vertices from a triangle mesh.

Note:

the list result is cleared on entry

template<class ForwardIterator>

Real Physsim::TriangleMesh::calc_signed_distance	(	ForwardIterator	first,
		ForwardIterator	last,
		const Vector3 &	point,
		TriangleConstPtr &	closest_tri
	)			[static]

Computes the signed distance from the triangle mesh to a point.

Note:

pointer to the closest triangle is returned in closest_tri

signed distance for points *just* outside the mesh (i.e., numerically close to one of the faces) will be somewhat inaccurate

template<class ForwardIterator>

Real Physsim::TriangleMesh::calc_signed_distance	(	ForwardIterator	first,
		ForwardIterator	last,
		const Vector3 &	point
	)			[static]

Computes the signed distance from the triangle mesh to a point.

Note:

signed distance for points *just* outside the mesh (i.e., numerically close to one of the faces) will be somewhat inaccurate

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

• /home/drumwrig/Physsim/include/Physsim/TriangleMesh.h
• /home/drumwrig/Physsim/src/TriangleMesh.cpp

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