MeshGetBoundaryNext

Retrieves the canonical node number of the next node on the specified boundary, with -1 indicating boundary termination.

Synopsis

#include "mesh.h" 
int MeshGetBoundaryNext(Mesh mesh, int boundary, PetscTruth ghost, int *node)

Not collective

Input Parameters

	mesh	- The mesh
	boundary	- The boundary marker
	ghost	- Flag for including ghost nodes

Output Parameter

node -The canonical node number

Note

This is typically used as an iteration construct with MeshGetBoundaryStart(),

for example:

MeshGetBoundaryStart(mesh, OUTER_BD, &node, PETSC_FALSE);

while (node >= 0) {

  PetscPrintf(PETSC_COMM_SELF, "I have boundary node %d\n", node);

  MeshGetBoundaryNext(mesh, OUTER_BD, &node, PETSC_FALSE);

Also, this only returns nodes which lie in the given domain, thus the above loop would run in parallel on all processors, returning different nodes on each.

Keywords