MAPUSR - Called by EZMAP routines that draw the various parts of the map. The default version does

       To use MAPUSR, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably in that order.

       Copyright (C) 1987-2009
       University Corporation for Atmospheric Research
       The use of this Software is governed by a License Agreement.

UNIX                                               March 1993                                     MAPUSR(3NCARG)

       IPRT        (input  expression,  of type INTEGER), if positive, says that a particular part of the map is
                   about to be drawn, as follows:

                       IPRT  Part of map about to be drawn

                       1     Perimeter.

                       2     Grid.

                       3     Labels.

                       4     Limb lines.

                       5     Continental outlines.

                       6     U.S. state outlines.

                       7     International outlines.

                   If IPRT is negative, then the drawing of the last part is complete.  The  absolute  value  of
                   IPRT will be one of the above values. Changed quantities should be restored.

       Use the ncargex command to see the following relevant example: mpex08.

       MAPUSR - Called by EZMAP routines that draw the various parts of the map.  The default version does
       nothing.  A user-written version may be supplied to change the appearance of the map. Note that this
       routine is not called by any of the EZMAPB routines; they call MPCHLN instead.

       Online: ezmap, ezmap_params, mapaci, mapbla, mapblm, mapdrw,  mapeod,  mapfst,  mapgci,  mapgrd,  mapgrm,
       mapgtc,  mapgti,  mapgtl,  mapgtr,  mapint, mapiq, mapiqa, mapiqd, mapiqm, mapit, mapita, mapitd, mapitm,
       maplbl, maplmb, maplot, mappos, maproj, maprs, maprst, mapsav, mapset, mapstc,  mapsti,  mapstl,  mapstr,
       maptra,  maptri,  maptrn, mapvec, mpchln, mpfnme, mpgetc, mpgeti, mpgetl, mpgetr, mpglty, mpiaty, mpifnb,
       mpilnb, mpiola, mpiosa, mpipai, mpipan, mpipar, mpisci, mplnam, mplndm, mplndr, mplnri,  mpname,  mprset,
       mpsetc, mpseti, mpsetl, mpsetr, supmap, supcon, ncarg_cbind

       CALL MAPUSR (IPRT)

       EZMAP executes the statement

           CALL MAPUSR (IPRT)

       just before and just after each portion of a map is drawn. The default version of MAPUSR does nothing.

       A  user-supplied  version  of MAPUSR may set/reset the dotting parameter 'DL', the DASHCHAR dash pattern,
       the color index, etc., so as to achieve a desired effect.