title: Gnuplot: Change Density of dotted line in splot
body: <p>I am trying to plot a dotted line within an splot with the following code in Gnuplot 4.6 patchlevel 4:</p>
  
  <pre><code>set terminal "pdfcairo" enhanced dashed size 15,10
  set pm3d map
  set output "test.pdf"
  splot 'map.dat' using 1:($2/1000):3 notitle, \
     'line1.dat' using 1:($2/1000):1 notitle with lines ls 2, \
     'line2.dat' using 1:($2/1000):1 notitle with lines ls 2
  unset output
  </code></pre>
  
  <p>The heat map works and so does line1.dat. However, the second line appears mostly solid. The difference is that line1.dat has 70 entries and line2.dat has 900. The second line has a jump between two points and there it is dotted.</p>
  
  <p>Does somebody know how I can change the dot density so that the whole line appears dotted. Changing the original data file is not an option.</p>
  
  <p>Thank you for your help,</p>
  
  <p>noes</p>
  
  <p>EDIT:</p>
  
  <p>One workaround I found is</p>
  
  <pre><code>splot 'line2.dat' every ...
  </code></pre>
  
  <p>but that can get unconvenient at the jump in the data.</p>