DMProjectCoordinates#

Project coordinates to a different space

Synopsis#

#include "petscdm.h"          
PetscErrorCode DMProjectCoordinates(DM dm, PetscFE disc)

Input Parameters#

  • dm - The DM object

  • disc - The new coordinate discretization or NULL to ensure a coordinate discretization exists

Notes#

A PetscFE defines an approximation space using a PetscSpace, which represents the basis functions, and a PetscDualSpace, which defines the interpolation operation in the space.

This function takes the current mesh coordinates, which are discretized using some PetscFE space, and projects this function into a new PetscFE space. The coordinate projection is done on the continuous coordinates, and if possible, the discontinuous coordinates are also updated.

Developer Note#

With more effort, we could directly project the discontinuous coordinates also.

See Also#

DM, PetscFE, DMGetCoordinateField()

Level#

intermediate

Location#

src/dm/interface/dmcoordinates.c

Examples#

src/dm/impls/plex/tutorials/ex8.c

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Index of all DM routines
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Index of all manual pages