AutoIncrement with Monochrome Solid Fill Patterns

[Philipp K. J. <ja...@ie...>]

Imagine I use a style that makes use of fill patterns,
such as one of the histogram styles.

Let's also assume I am using a fill style "solid".
Using a color terminal, each new data set gets a
new color and everything is good.

But if I try to export the result to a monochrome 
terminal (eg. EPS), all distinction is of course lost.

Is it possible to convince gnuplot not to change 
color from data set to data set, but instead increase
the density (thus giving an appearance of gray scales)?

Best,

		Ph.