VTR_write_mesh - writes rectilinear grid coordinates.
call VTR_write_mesh(FD, X, Y, [Z])
<IN> FD : Input of type VTR_file_handle. <IN> X : Input double precision. Defines X component of the mesh points. <IN> Y : Input double precision. Defines Y component of the mesh points. <IN> Z : Optional input double precision. If present, it defines Z component of the mesh points.
For 2D fields, Z parameter is not needed.