docs/wiki/geda-data_plotting_improvements.html

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  14 <em>Translations of this page are also available in the following languages:</em> <a href="geda-data_plotting_improvements.ru.html" class="wikilink1" title="geda-data_plotting_improvements.ru.html">Русский</a>.
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  16
  17 <h1 id="simulationdataplotting">Simulation Data Plotting</h1>
  18 <div class="level1">
  19
  20 </div>
  21
  22 <h2 id="rationale">Rationale</h2>
  23 <div class="level2">
  24
  25 <p>
  26 This article discusses on how data plotting can be improved.
  27 There are various programs out there, each has it&#039;s own pros and cons:
  28 </p>
  29 <ul>
  30 <li class="level1"><div class="li">  gtkwave: a great viewer for digital simulation data</div>
  31 </li>
  32 <li class="level1"><div class="li">  gwave: analog waveform viewer</div>
  33 </li>
  34 <li class="level1"><div class="li">  KJWaves: simulation frontend with plotting window</div>
  35 </li>
  36 <li class="level1"><div class="li"> buildin plotting functions in ngspice</div>
  37 </li>
  38 <li class="level1"><div class="li"> gnuplot / octave / scipy / ... or similar programs as postprocessing script languages</div>
  39 </li>
  40 <li class="level1"><div class="li"> ...</div>
  41 </li>
  42 </ul>
  43
  44 <p>
  45 There have been various suggestions on the mailing lists about the feature a plotting program could have:
  46 </p>
  47 <ul>
  48 <li class="level1"><div class="li"> postprocessing: integrate, add, diff, fft, ...</div>
  49 </li>
  50 <li class="level1"><div class="li"> view, examine: cursors, multiple windows, ...</div>
  51 </li>
  52 <li class="level1"><div class="li"> data import, file format: circuit simulation data (gnucap, spice, ...)  hdf5 , measured data from oscilloscopes, spectrum analysers, ...</div>
  53 </li>
  54 <li class="level1"><div class="li"> data export, file format: hdf5, pictures (png, ps, ...), ascii</div>
  55 </li>
  56 <li class="level1"><div class="li"> communication backends: dbus, ...</div>
  57 </li>
  58 <li class="level1"><div class="li"> extension/scripting language</div>
  59 </li>
  60 </ul>
  61
  62 </div>
  63
  64 <h2 id="draft1extendgtkwaves">Draft1: Extend gtkwaves</h2>
  65 <div class="level2">
  66 <ul>
  67 <li class="level1"><div class="li"> write some import functions for analog data</div>
  68 </li>
  69 </ul>
  70
  71 </div>
  72
  73 <h2 id="draft2improvegwave">Draft2: improve gwave</h2>
  74 <div class="level2">
  75
  76 <p>
  77 gwave requires an old  guile-gtk for GTK1.2.
  78 </p>
  79 <ul>
  80 <li class="level1"><div class="li"> port gwave to guile-gtk2.0 for GTK2.x</div>
  81 </li>
  82 <li class="level1"><div class="li"> remove the guile-gtk requirement. Maybe create a native gtk2 application with libglade?</div>
  83 </li>
  84 </ul>
  85
  86 <p>
  87 A rewrite of gwave:
  88 </p>
  89 <ul>
  90 <li class="level1"><div class="li"> gaw: http://www.rvq.fr/linux/gaw.php</div>
  91 </li>
  92 </ul>
  93
  94 </div>
  95
  96 <h2 id="draft3searchforexistingdataexploringprograms">Draft3: Search for existing data exploring programs</h2>
  97 <div class="level2">
  98
  99 <p>
 100 Are there any programs out there that can show and postprocess simulation data?
 101 If yes, how can they be extended to work as a waveform viewer for the simulators (gnucap, ngspice)?
 102 </p>
 103
 104 </div>
 105
 106 <h2 id="draft4anewplottingapplication">Draft4: A new plotting application</h2>
 107 <div class="level2">
 108
 109 <p>
 110 Some vague notes on how a new plotting application could be written.
 111 This notes currently relate on python as programming language.
 112 </p>
 113 <ul>
 114 <li class="level1"><div class="li"> the GUI could be created with libglade</div>
 115 </li>
 116 <li class="level1"><div class="li"> the data storage format could be  hdf5 , maybe together with pytables</div>
 117 </li>
 118 <li class="level1"><div class="li"> the plotting engine could be  matplotlib (png, ps export included)</div>
 119 </li>
 120 <li class="level1"><div class="li"> postprocessing could be done with  scipy</div>
 121 </li>
 122 <li class="level1"><div class="li"> the scripting language is python. Thus import filter to hdf5 can easily be written. Even an integrated python shell would be possible. Seen on  MayaVi 2</div>
 123 </li>
 124 </ul>
 125
 126 <p>
 127 Disadvantage: This configuration has a huge rucksack of additional required packages.
 128 </p>
 129
 130 <p>
 131 <strong>Update</strong>
 132 </p>
 133
 134 <p>
 135 There are now some programs out there, that use the python, numpy, matplotlib tool chain:
 136 </p>
 137 <ul>
 138 <li class="level1"><div class="li"> oscopy: http://repo.or.cz/w/oscopy.git</div>
 139 </li>
 140 <li class="level1"><div class="li"> dataplot: http://www.h-renrew.de/h/dataplot/dataplot.html, http://repo.or.cz/w/dataplot.git</div>
 141 </li>
 142 <li class="level1"><div class="li"> gsim: http://kiwiki.fmtnuni.sk/mediawiki/index.php/Description_of_gsim</div>
 143 </li>
 144 </ul>
 145
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