#include "petscds.h" PetscErrorCode PetscDSUpdateBoundary(PetscDS ds, PetscInt bd, DMBoundaryConditionType type, const char name[], DMLabel label, PetscInt Nv, const PetscInt values[], PetscInt field, PetscInt Nc, const PetscInt comps[], void (*bcFunc)(void), void (*bcFunc_t)(void), void *ctx)
ds | - The PetscDS object | |
bd | - The boundary condition number | |
type | - The type of condition, e.g. DM_BC_ESSENTIAL/DM_BC_ESSENTIAL_FIELD (Dirichlet), or DM_BC_NATURAL (Neumann) | |
name | - The BC name | |
label | - The label defining constrained points | |
Nv | - The number of DMLabel ids for constrained points | |
values | - An array of ids for constrained points | |
field | - The field to constrain | |
Nc | - The number of constrained field components | |
comps | - An array of constrained component numbers | |
bcFunc | - A pointwise function giving boundary values | |
bcFunc_t | - A pointwise function giving the time derviative of the boundary values, or NULL | |
ctx | - An optional user context for bcFunc |