PROCEDURE: PLOT_MAP DESCRIPTION: Plot the map from the standard 3-D data structure that is returned from the IDL from SDT interface. The THETA, PHI, DTHETA, DPHI, DATA_NAME and PROJECT_NAME tags must exist for this routine to work. (The standard 3-D data structure should contain these.) CALLING SEQUENCE: plot_map, data_structure ARGUMENTS: data_structure The standard 3-D data structure to plot the map from. REVISION HISTORY: