Comparing the quality of terminals

Question

I see that the quality of fill patterns change from one terminal to another. For example, This the shapes I see on set term windows

and this is what I see in set term post eps enhanced color blacktext size 3.2,2.2 solid "Times-Roman" 12

And when I print the ps post output on a paper, the lines are very thin.

The question is why and how can I have such pattern in ps term

Answer 1

That's not a matter of quality. The pattern styles are defined differently, I don't know why.

Here are two solutions for this:

1. You can first plot the pattern only with a larger linewidth setting, and after that the border:

   set terminal postscript eps monochrome
   set output 'foobar.eps'
   set samples 10
   set xrange [0:1]
   set boxwidth 0.9 relative
   set style data boxes
   plot '+' using 1:1 fillstyle pattern 4 noborder linewidth 10,\
        '+' using 1:1 lt 1 lw 2 fillstyle empty notitle
   

   That, however, gives you also different results for the windows terminal, if that matters.

2. You can change the file prologue.ps, which contains the definition of the pattern line width. See show psdir for the location of this file.

   With version 4.6.3, the prologue.ps file contains in lines 266 to 280 the respective definition:

   /PatternFill {gsave /PFa [ 9 2 roll ] def
   [...4 lines skipped]
   currentlinewidth 0.5 mul setlinewidth
   

   You must change this line to something like

   currentlinewidth 2 mul setlinewidth
   

   then save the prologue.ps file somewhere else, and set the correct directory with set psdir.