Function:     PGPAT

Purpose:      Set line style according to input pattern.

Category:     GRAPHICS

File:         pgplot.src

Author:       M.G.R. Vogelaar

Use:          CALL PGPAT( PAT )     Input     REAL ARRAY

              PAT   The line-style pattern for subsequent plotting
                    (8 floating point numbers).

Description:  Set the line style for subsequent plotting. This
              attribute affects line primitives only; it does not affect
              graph markers, text, or area fill.
              The array PAT contains 8 reals. The pattern is set by
              each pair of two numbers. The first number in a pair sets
              the number of dots that must be plotted and the second
              number sets the number of dots that must be skipped.

              Known patterns:
              dashed: PAT = 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 
              dot-dash-dot-dash: PAT = 8.0 6.0 1.0 6.0 8.0 6.0 1.0 6.0
              dotted: PAT = 1.0 6.0 1.0 6.0  1.0 6.0 1.0 6.0
              dash-dot-dot-dot: PAT = 8.0 6.0 1.0 6.0 1.0 6.0 1.0 6.0

Updates:      Apr 10, 1995: VOG Document created.