GVecInterpolateField

Interpolates the field defined by the grid vector to the specified point, and stores the components in the array provided.

#include "gvec.h" 
int GVecInterpolateField(GVec v, int field, double x, double y, double z, PetscScalar *values, InterpolationContext *ctx)

v -The grid vector

x,y,z -The interpolation point

ctx -An InterpolationContext

values -The interpolated field at the point

grid vector, interpolation