title: gnuplot 2d plot to 3d fence plot
body: <p>i have a plot looking like this:</p>
  
  <p><img src="https://i.stack.imgur.com/a6VZj.png" alt="http://www.abload.de/img/selection001yplp.png"></p>
  
  <p>However the lines are overlapping quite a lot and i'm not able to see as much as i'd like. My gnuplot script looks like this:</p>
  
  <pre><code>    set autoscale
      set term pdfcairo font ",4"
      set output "plot.pdf"
      set xdata time
      set format x "%H:%M"
      set timefmt "%s"
      set yrange [0:550]
      plot "file.dat" every 150 using 3:4 title '' with lines, \
           "file.dat" every 150 using 3:5 title '' with lines, \
           "file.dat" every 150 using 3:6 title '' with lines, \
           "file.dat" every 150 using 3:7 title '' with lines, \
           "file.dat" every 150 using 3:8 title '' with lines, \
           "file.dat" every 150 using 3:9 title '' with lines, \
           "file.dat" every 150 using 3:10 title '' with lines, \
           "file.dat" every 150 using 3:11 title '' with lines
  </code></pre>
  
  <p>and the corresponding <code>file.dat</code> looks like this:</p>
  
  <pre><code>(.........)
  6 1303238171 0 134.332413 140.304581 138.496323 134.021835 105.546227 107.943008 102.812347 109.098152 972.554886
  7 1303238171 0 134.232849 140.35408 138.186279 132.489319 105.941231 108.020004 103.009338 109.75119 971.98429
  8 1303238171 0 135.125488 138.125427 138.100098 132.543625 106.153214 107.507042 102.338707 125.25383 985.147431
  9 1303238171 0 134.341904 139.913376 138.070648 132.368164 106.214211 108.506859 102.963211 155.246277 1017.62465
  10 1303238171 1 134.163055 140.042313 139.231033 132.444244 106.161438 108.850807 103.753929 162.19162 1026.838439
  11 1303238171 1 134.179016 140.187561 138.68425 132.572876 107.169006 107.507057 102.974937 120.698692 983.973395
  12 1303238171 1 134.40593 140.569382 138.604828 139.589264 106.631699 108.092957 103.634117 108.943863 980.47204
  13 1303238172 1 134.353363 138.062759 138.344818 140.665985 107.538544 108.983582 104.300827 175.732117 1047.981995
  14 1303238172 1 135.190887 140.411484 138.174591 133.823929 105.412224 108.240623 102.790154 120.459106 984.502998
  (.........)
  </code></pre>
  
  <p>Is there an <strong>easy</strong> way to get this chart looking like a fence plot like on the  <a href="http://gnuplot.sourceforge.net/demo/surface1.html" rel="nofollow noreferrer">gnuplot examples page</a>? I looked over it and it seems to be really complicated. I wish i could easily add a third dimension without changing the <code>file.dat</code>. Do you guy's perhaps know a way to achieve this? Or do you have any other ideas how i can make this chart better readable?</p>
  
  <p>Best regards,</p>