GVecEvaluateBoundaryFunctionGalerkin

Evaluates the weak form of a function over a field on the locations defined by the boundary of the underlying mesh and its discretization.

#include "gvec.h" 
int GVecEvaluateBoundaryFunctionGalerkin(GVec v, int numFields, int *fields, PointFunction f, PetscScalar alpha, void *ctx)

v -The grid vector

numFields -The number of fields to evaluate

fields -The fields

f -The user provided function

alpha -A scalar multiplier

ctx -An optional user provided context for the function