petsc-3.13.6 2020-09-29
DMProjectFunctionLabel
This projects the given function into the function space provided, putting the coefficients in a global vector, setting values only for points in the given label.
Synopsis
#include "petscdm.h"
#include "petscdmlabel.h"
#include "petscds.h"
PetscErrorCode DMProjectFunctionLabel(DM dm, PetscReal time, DMLabel label, PetscInt numIds, const PetscInt ids[], PetscInt Nc, const PetscInt comps[], PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, InsertMode mode, Vec X)
Collective on DM
Input Parameters
| dm | - The DM
|
| time | - The time
|
| label | - The DMLabel selecting the portion of the mesh for projection
|
| 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
X -vector
Calling sequence of func
func(PetscInt dim, PetscReal time, const PetscReal x[], PetscInt Nf, PetscScalar u[], void *ctx);
| dim | - The spatial dimension
|
| x | - The coordinates
|
| Nf | - The number of fields
|
| u | - The output field values
|
| ctx | - optional user-defined function context
|
See Also
DMProjectFunction(), DMProjectFunctionLocal(), DMProjectFunctionLabelLocal(), DMComputeL2Diff()
Level
developer
Location
src/dm/interface/dm.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages