%N pgvstd %F $MIR/src/pgvstd.f
%D Set standard (default) viewport
%B
      SUBROUTINE PGVSTD

 Define the viewport to be the standard viewport.  The standard
 viewport is the full area of the view surface (or panel),
 less a margin of 4 character heights all round for labelling.
 It thus depends on the current character size, set by PGSCH.

 Arguments: none.
