DMSetCoordinateDisc#

Set a coordinate space

Synopsis#

#include "petscdm.h"          
PetscErrorCode DMSetCoordinateDisc(DM dm, PetscFE disc, PetscBool localized, PetscBool project)

Input Parameters#

dm - The DM object
disc - The new coordinate discretization or NULL to ensure a coordinate discretization exists
localized - Set a localized (DG) coordinate space
project - Project coordinates to new discretization

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, but the discontinuous coordinates are not updated.

Developer Note#

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

Level#

intermediate

Location#

src/dm/interface/dmcoordinates.c

Examples#

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

Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages