DMStagStencil#

data structure representing a degree of freedom on a DMSTAG grid

Synopsis#

typedef struct {
  DMStagStencilLocation loc;
  PetscInt              i, j, k, c;
} DMStagStencil;

Data structure (C struct), analogous to describing a degree of freedom associated with a DMSTAG object, in terms of a global element index in each of up to three directions, a “location” as defined by DMStagStencilLocation, and a component number. Primarily for use with DMStagMatSetValuesStencil() (compare with use of MatStencil with MatSetValuesStencil()).