petsc-3.12.5 2020-03-29

DMFieldRegister

Adds an implementation of the DMField object.

#include "petscdmfield.h"  
PetscErrorCode  DMFieldRegister(const char sname[],PetscErrorCode (*function)(DMField))

Not collective

	name_impl	- name of a new user-defined implementation
	routine_create	- routine to create method context

DMFieldRegister() may be called multiple times to add several user-defined implementations.

   DMFieldRegister("my_impl",MyImplCreate);

Then, this implementation can be chosen with the procedural interface via

    DMFieldSetType(tagger,"my_impl")

advanced