Display software for Miriad data falls into two main camps - those that
are part of the ATNF Visualisation Suite (not strictly part of Miriad)
and those that
use a PGPLOT device (line plots plus some image display capability).
Generally the Visualisation suite is better for interactive
work and the PGPLOT software is better for quantitative work. This
chapter will give an overview of using the PGPLOT software.
Historically there is a third camp - the ``TV'' software. There is
only one useful task left which uses this software, and so the ``TV''
software will be described with that task. Unfortunately, the ``TV''
software can only be used with 8-bit colour-depth displays, which limits its
usage with modern computers which usually operate with far greater colour