petsc-3.7.3 2016-07-24
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# PetscFVRefine

Create a "refined" PetscFV object that refines the reference cell into smaller copies. This is typically used to precondition a higher order method with a lower order method on a refined mesh having the same number of dofs (but more sparsity). It is also used to create an interpolation between regularly refined meshes.

### Synopsis

    #include "petscfv.h"
    PetscErrorCode PetscFVRefine(PetscFV fv, PetscFV *fvRef)

### Input Parameter

fv - The initial PetscFV

### Output Parameter

fvRef - The refined PetscFV

### See Also

PetscFVType, PetscFVCreate(), PetscFVSetType()

Level:developer
Location: src/dm/dt/interface/dtfv.c
Index of all DM routines
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Index of all manual pages