PetscSectionSetFieldComponents#
Sets the number of field components for the given field.
Synopsis#
#include "petscsection.h"
PetscErrorCode PetscSectionSetFieldComponents(PetscSection s, PetscInt field, PetscInt numComp)
Not Collective
Input Parameters#
s - the
PetscSection
field - the field number
numComp - the number of field components
Note#
This number can be different than the values set with PetscSectionSetFieldDof()
. It can be used to indicate the number of
components in the field of the underlying physical model which may be different than the number of degrees of freedom needed
at a point in a discretization. For example, if in three dimensions the field is velocity, it will have 3 components, u, v, and w but
an face based model for velocity (where the velocity normal to the face is stored) there is only 1 dof for each face point.
The value set with this function are not needed or used in PetscSectionSetUp()
.
Developer Notes#
This function is misnamed. There is a Num in PetscSectionSetNumFields()
but not in this name
See Also#
PetscSection, PetscSection
, PetscSectionGetFieldComponents()
, PetscSectionSetComponentName()
,
PetscSectionGetComponentName()
, PetscSectionGetNumFields()
Level#
advanced
Location#
Examples#
src/ts/tutorials/ex11_sa.c
src/dm/impls/plex/tutorials/ex7.c
Index of all PetscSection routines
Table of Contents for all manual pages
Index of all manual pages