Public Member Functions
	gpFace ()
	Default gpFace constructor (dimension= 2, size= 2)
	gpFace (unsigned int dimension, unsigned int vertex_number)
unsigned int	operator[] (const unsigned int i) const
unsigned int &	operator[] (const unsigned int i)
unsigned int	nbVertices ()
unsigned int	nbRidges ()
std::vector< double >	normal ()
std::vector< double >	center ()
unsigned int	id ()
double	offset ()
std::vector< unsigned int >	vertices ()
int	print ()
int	reverseVertexOrder ()
int	orderFromRidges ()
Friends
class	gpConvexHull

Detailed Description

Class to store a face of a point set convex hull.

Constructor & Destructor Documentation

Parameters:

dimension	desired dimension of the vertex space
vertex_number	desired number of vertices of the face

unsigned int gpFace::operator[] ( const unsigned int i ) const

Operator to access the vertex array of the face.

Parameters:

i	index in the vertex array of the face (starts from 0)

unsigned int & gpFace::operator[] ( const unsigned int i )

Operator to access the vertex array of the face.

Parameters:

i	index in the vertex array of the face (starts from 0)

Returns:: a reference to the i-th element of the vertex index array of the face

int gpFace::orderFromRidges ( )

Orders the vertices of a face according to its ridges. This is needed for two reasons:

Qhull returns the vertices in a face with an arbitrary order if it is non-simplicial
if face merging is enabled, the toporient field of a facet is no longer valid and the ridge orientation must be used instead This function is only used in 3D.
Returns:
GP_OK in case of success, GP_ERROR otherwise

int gpFace::print ( )

Prints, in stdout, the content of a face.

int gpFace::reverseVertexOrder ( )

Reverse the order of the vertices in the array of vertices of the calling face.

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