DMProjectFunctionLabelLocal

This projects the given function into the function space provided by the DM, putting the coefficients in a local vector, setting values only for points in the given label.

Synopsis

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMProjectFunctionLabelLocal(DM dm, PetscReal time, DMLabel label, PetscInt numIds, const PetscInt ids[], PetscInt Nc, const PetscInt comps[], PetscErrorCode (**funcs)(PetscInt dim, PetscReal time, const PetscReal x[], PetscInt Nc, PetscScalar *u, void *ctx), void **ctxs, InsertMode mode, Vec localX)

Not Collective

Input Parameters

• dm - The DM

• time - The time

• label - The DMLabel selecting the portion of the mesh for projection

• numIds - The number of ids

• ids - The ids

• Nc - The number of components

• comps - The components

• funcs - The coordinate functions to evaluate, one per field

• ctxs - Optional array of contexts to pass to each coordinate function. ctxs itself may be null.

• mode - The insertion mode for values

Output Parameter

• localX - vector

Calling sequence of funcs

• dim - The spatial dimension

• time - The current time

• x - The coordinates

• Nc - The number of components

• u - The output field values

• ctx - optional user-defined function context

Developer Notes

This API is specific to only particular usage of DM

The notes need to provide some information about what has to be provided to the DM to be able to perform the computation.

See Also

DM Basics, DM, DMProjectFunction(), DMProjectFunctionLocal(), DMProjectFunctionLabel(), DMComputeL2Diff()

Level

developer

Location

src/dm/interface/dm.c

Implementations

DMProjectFunctionLabelLocal_pforest(DM dm, PetscReal time, DMLabel label, PetscInt numIds, const PetscInt ids[], PetscInt Ncc, const PetscInt comps[], PetscErrorCode (**funcs)() in src/dm/impls/forest/p4est/pforest.h
DMProjectFunctionLabelLocal_Plex(DM dm, PetscReal time, DMLabel label, PetscInt numIds, const PetscInt ids[], PetscInt Ncc, const PetscInt comps[], PetscErrorCode (**funcs)() in src/dm/impls/plex/plexproject.c

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