um_obj_func ! not required for module
procedures
<p>query_data%ptr => meshdata
<br>ierr = Zoltan_Set_Fn(zz,ZOLTAN_NUM_OBJ_FN_TYPE,num_obj_func,query_data)</ul>
Note that the existing data type must be available when <b>Zoltan_User_Data_x</b>
is defined. Therefore it must be defined either in<i> zoltan_user_data.f90</i>
or in a module that is compiled before <i>zoltan_user_data.f90</i> and <b>USE</b>d
by MODULE<i> zoltan_user_data</i>. For an example that uses a wrapper type,
see <i>fdriver/zoltan_user_data.