.. _nodereg_full:

**-r**\ [**g**\|\ **p**]
    Force **g**\ridline or **p**\ ixel node registration [gridline]. Just **-r** sets pixel registration.
    If no **-r** is given then gridline registration is selected.
    (Node registrations are defined in Section :ref:`option_nodereg`
    of the GMT Technical Reference and Cookbook.)