t8_cmesh_helpers.h File Reference

Collection of helper routines for building cmeshes. More...

#include <t8.h>
#include <t8_cmesh.h>
#include <t8_eclass.h>

Go to the source code of this file.

Functions
void	t8_cmesh_set_join_by_vertices (t8_cmesh_t cmesh, const int ntrees, const t8_eclass_t *eclasses, const double *vertices, int **connectivity, const int do_both_directions)
	Sets the face connectivity information of an un-committed \cmesh based on a list of tree vertices. More...

Detailed Description

Collection of helper routines for building cmeshes.

Function Documentation

t8_cmesh_set_join_by_vertices()

void t8_cmesh_set_join_by_vertices	(	t8_cmesh_t	cmesh,
		const int	ntrees,
		const t8_eclass_t *	eclasses,
		const double *	vertices,
		int **	connectivity,
		const int	do_both_directions
	)

Sets the face connectivity information of an un-committed \cmesh based on a list of tree vertices.

Parameters

[in,out]	cmesh	Pointer to a t8code cmesh object. If set to NULL this argument is ignored.
[in]	ntrees	Number of coarse mesh elements resp. trees.
[in]	vertices	List of per element vertices with dimensions [ntrees,T8_ECLASS_MAX_CORNERS,T8_ECLASS_MAX_DIM].
[in]	eclasses	List of element classes of length [ntrees].
[in,out]	connectivity	If connectivity is not NULL the variable is filled with a pointer to an allocated face connectivity array. The ownership of this array goes to the caller. This argument is mainly used for debugging and testing purposes. The dimension of connectivity are [ntrees,T8_ECLASS_MAX_FACES,3]. For each element and each face the following is stored: neighbor_tree_id, neighbor_dual_face_id, orientation
[in]	do_both_directions	Compute the connectivity from both neighboring sides. Takes much longer to compute.

Warning

This routine might be too expensive for very large meshes. In this case, consider to use a fully featured mesh generator.

Note

This routine does not detect periodic boundaries.