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# DMPlexRemapGeometry

This function maps the original `DM` coordinates to new coordinates.

## Synopsis

    #include "petscdmplex.h"
    #include "petscfe.h"
    PetscErrorCode DMPlexRemapGeometry(DM dm, PetscReal time, void (*func)(PetscInt dim, PetscInt Nf, PetscInt NfAux, const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar f[]))

Not Collective

## Input Parameters

- dm - The `DM`

- time - The time

- func - The function transforming current coordinates to new coordinates

## Calling sequence of `func`

- dim - The spatial dimension

- Nf - The number of input fields (here 1)

- NfAux - The number of input auxiliary fields

- uOff - The offset of the coordinates in u[] (here 0)

- uOff_x - The offset of the coordinates in u_x[] (here 0)

- u - The coordinate values at this point in space

- u_t - The coordinate time derivative at this point in space (here `NULL`)

- u_x - The coordinate derivatives at this point in space

- aOff - The offset of each auxiliary field in u[]

- aOff_x - The offset of each auxiliary field in u_x[]

- a - The auxiliary field values at this point in space

- a_t - The auxiliary field time derivative at this point in space (or `NULL`)

- a_x - The auxiliary field derivatives at this point in space

- t - The current time

- x - The coordinates of this point (here not used)

- numConstants - The number of constants

- constants - The value of each constant

- f - The new coordinates at this point in space

## See Also

`DMPLEX`, `DMGetCoordinates()`, `DMGetCoordinatesLocal()`, `DMGetCoordinateDM()`, `DMProjectFieldLocal()`, `DMProjectFieldLabelLocal()`

## Level

intermediate

## Location

src/dm/impls/plex/plexgeometry.c

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