petsc-3.14.6 2021-03-30
DMProjectFunction
This projects the given function into the function space provided, putting the coefficients in a global vector.
Synopsis
#include "petscdm.h"
#include "petscdmlabel.h"
#include "petscds.h"
PetscErrorCode DMProjectFunction(DM dm, PetscReal time, 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
|
| 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
Calling sequence of func
func(PetscInt dim, PetscReal time, const PetscReal x[], PetscInt Nf, PetscScalar u[], void *ctx);
| dim | - The spatial dimension
|
| time | - The time at which to sample
|
| x | - The coordinates
|
| Nf | - The number of fields
|
| u | - The output field values
|
| ctx | - optional user-defined function context
|
See Also
DMProjectFunctionLocal(), DMProjectFunctionLabel(), DMComputeL2Diff()
Level
developer
Location
src/dm/interface/dm.c
Examples
src/snes/tutorials/ex12.c.html
src/snes/tutorials/ex62.c.html
src/snes/tutorials/ex77.c.html
src/ts/tutorials/ex11.c.html
src/ts/tutorials/ex45.c.html
src/ts/tutorials/ex46.c.html
src/ts/tutorials/ex48.c.html
src/tao/tutorials/ex1.c.html
src/tao/tutorials/ex2.c.html
src/tao/tutorials/ex3.c.html
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages