Changing mark/space for dashed lines in plots

[Rik]

7/2/14

All,

If you take a look at the plot comparisons for plotyy_03 at
tech-chat.de/compare_plot_demos you will see that Octave uses a fairly
chunky dashed line for the '--' linestyle while both gnuplot and Matlab use
a slimmer dashed line.

It is rather easy to change the appearance of our dashed line, but I wanted
to collect some opinions about whether to do it and which style to use if
we do change.

Attached are three pdfs showing the various line styles.  The first is the
current style, dash_50 uses 50% mark/50% space, dash_75 uses 75% mark/25%
space.  Send back opinions to the maintainer's list.

Cheers,
Rik

dash_current.pdf
Description: Adobe PDF document

dash_50.pdf
Description: Adobe PDF document

dash_75.pdf
Description: Adobe PDF document