DMPlexComputeInjectorReferenceTree

Compute the injection matrix from fine to coarse degrees of freedom on the reference tree

Synopsis

#include "petscdmplex.h"   
PetscErrorCode DMPlexComputeInjectorReferenceTree(DM refTree, Mat *inj)

Collective

Input Parameter

• refTree - The reference-tree DMPLEX (see DMPlexCreateDefaultReferenceTree())

Output Parameter

• inj - The newly created injection Mat mapping fine-space coefficients on the reference tree to their coarse-space counterparts

Note

For a nodal basis, the injection is derived from the constraint matrix attached to the reference tree; the returned matrix is used internally by DMPlexComputeInjectorTree() to construct the global injection between refined and coarse meshes.

See Also

DMPlex: Unstructured Grids, DM, DMPLEX, DMPlexSetReferenceTree(), DMPlexCreateDefaultReferenceTree(), DMPlexComputeInjectorTree(), DMPlexComputeInterpolatorTree()

Level

developer

Location

src/dm/impls/plex/plextree.c

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Index of all DMPlex routines
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