<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title></title> <link rel="stylesheet" media="screen" type="text/css" href="./style.css" /> <link rel="stylesheet" media="screen" type="text/css" href="./design.css" /> <link rel="stylesheet" media="print" type="text/css" href="./print.css" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> </head> <body> <h1 class="sectionedit1712"><a name="simulation_data_plotting" id="simulation_data_plotting">Simulation Data Plotting</a></h1> <div class="level1"> </div> <!-- EDIT1712 SECTION "Simulation Data Plotting" [1-41] --> <h2 class="sectionedit1713"><a name="rationale" id="rationale">Rationale</a></h2> <div class="level2"> <p> This article discusses on how data plotting can be improved. There are various programs out there, each has it's own pros and cons: </p> <ul> <li class="level1"><div class="li"> <a href="http://home.nc.rr.com/gtkwave/" class="urlextern" title="http://home.nc.rr.com/gtkwave/" rel="nofollow"> gtkwave</a>: a great viewer for digital simulation data</div> </li> <li class="level1"><div class="li"> <a href="http://www.telltronics.org/software/gwave/" class="urlextern" title="http://www.telltronics.org/software/gwave/" rel="nofollow"> gwave</a>: analog waveform viewer</div> </li> <li class="level1"><div class="li"> <a href="http://sourceforge.net/projects/kjwaves" class="urlextern" title="http://sourceforge.net/projects/kjwaves" rel="nofollow"> KJWaves</a>: simulation frontend with plotting window</div> </li> <li class="level1"><div class="li"> buildin plotting functions in ngspice</div> </li> <li class="level1"><div class="li"> gnuplot / octave / scipy / … or similar programs as postprocessing script languages</div> </li> <li class="level1"><div class="li"> …</div> </li> </ul> <p> There have been various suggestions on the mailing lists about the feature a plotting program could have: </p> <ul> <li class="level1"><div class="li"> postprocessing: integrate, add, diff, fft, …</div> </li> <li class="level1"><div class="li"> view, examine: cursors, multiple windows, …</div> </li> <li class="level1"><div class="li"> data import, file format: circuit simulation data (gnucap, spice, …) <a href="http://www.hdfgroup.org/HDF5/" class="urlextern" title="http://www.hdfgroup.org/HDF5/" rel="nofollow"> hdf5 </a>, measured data from oscilloscopes, spectrum analysers, …</div> </li> <li class="level1"><div class="li"> data export, file format: hdf5, pictures (png, ps, …), ascii</div> </li> <li class="level1"><div class="li"> communication backends: dbus, …</div> </li> <li class="level1"><div class="li"> extension/scripting language</div> </li> </ul> </div> <!-- EDIT1713 SECTION "Rationale" [42-1133] --> <h2 class="sectionedit1714"><a name="draft1extend_gtkwaves" id="draft1extend_gtkwaves">Draft1: Extend gtkwaves</a></h2> <div class="level2"> <ul> <li class="level1"><div class="li"> write some import functions for analog data</div> </li> </ul> </div> <!-- EDIT1714 SECTION "Draft1: Extend gtkwaves" [1134-1219] --> <h2 class="sectionedit1715"><a name="draft2improve_gwave" id="draft2improve_gwave">Draft2: improve gwave</a></h2> <div class="level2"> <p> gwave requires an old <a href="http://www.gnu.org/software/guile-gtk/" class="urlextern" title="http://www.gnu.org/software/guile-gtk/" rel="nofollow"> guile-gtk</a> for GTK1.2. </p> <ul> <li class="level1"><div class="li"> port gwave to guile-gtk2.0 for GTK2.x</div> </li> <li class="level1"><div class="li"> remove the guile-gtk requirement. Maybe create a native gtk2 application with libglade?</div> </li> </ul> </div> <!-- EDIT1715 SECTION "Draft2: improve gwave" [1220-1479] --> <h2 class="sectionedit1716"><a name="draft3search_for_existing_data_exploring_programs" id="draft3search_for_existing_data_exploring_programs">Draft3: Search for existing data exploring programs</a></h2> <div class="level2"> <p> Are there any programs out there that can show and postprocess simulation data? If yes, how can they be extended to work as a waveform viewer for the simulators (gnucap, ngspice) </p> </div> <!-- EDIT1716 SECTION "Draft3: Search for existing data exploring programs" [1480-1725] --> <h2 class="sectionedit1717"><a name="draft4a_new_plotting_application" id="draft4a_new_plotting_application">Draft4: A new plotting application</a></h2> <div class="level2"> <p> Some vague notes on how a new plotting application could be written. This notes currently relate on python as programming language. </p> <ul> <li class="level1"><div class="li"> the <acronym title="Graphical User Interface">GUI</acronym> could be created with <a href="http://www.jamesh.id.au/software/libglade/" class="urlextern" title="http://www.jamesh.id.au/software/libglade/" rel="nofollow">libglade</a></div> </li> <li class="level1"><div class="li"> the data storage format could be <a href="http://www.hdfgroup.org/HDF5/" class="urlextern" title="http://www.hdfgroup.org/HDF5/" rel="nofollow"> hdf5 </a>, maybe together with <a href="http://www.pytables.org/moin" class="urlextern" title="http://www.pytables.org/moin" rel="nofollow">pytables</a></div> </li> <li class="level1"><div class="li"> the plotting engine could be <a href="http://matplotlib.sourceforge.net/" class="urlextern" title="http://matplotlib.sourceforge.net/" rel="nofollow"> matplotlib</a> (png, ps export included)</div> </li> <li class="level1"><div class="li"> postprocessing could be done with <a href="http://www.scipy.org" class="urlextern" title="http://www.scipy.org" rel="nofollow"> scipy</a></div> </li> <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 <a href="http://code.enthought.com/mayavi2-screenshot.shtml" class="urlextern" title="http://code.enthought.com/mayavi2-screenshot.shtml" rel="nofollow"> MayaVi 2</a></div> </li> </ul> <p> Disadvantage: This configuration has a huge rucksack of additional required packages. </p> <p> <strong>Update</strong> </p> <p> There are now some programs out there, that use the python, numpy, matplotlib tool chain. </p> <ul> <li class="level1"><div class="li"> oscopy: <a href="http://repo.or.cz/w/oscopy.git" class="urlextern" title="http://repo.or.cz/w/oscopy.git" rel="nofollow">http://repo.or.cz/w/oscopy.git</a></div> </li> <li class="level1"><div class="li"> dataplot: <a href="http://www.h-renrew.de/h/dataplot/dataplot.html" class="urlextern" title="http://www.h-renrew.de/h/dataplot/dataplot.html" rel="nofollow">http://www.h-renrew.de/h/dataplot/dataplot.html</a>, <a href="http://repo.or.cz/w/dataplot.git" class="urlextern" title="http://repo.or.cz/w/dataplot.git" rel="nofollow">http://repo.or.cz/w/dataplot.git</a></div> </li> <li class="level1"><div class="li"> gsim: <a href="http://kiwiki.fmtnuni.sk/mediawiki/index.php/Description_of_gsim" class="urlextern" title="http://kiwiki.fmtnuni.sk/mediawiki/index.php/Description_of_gsim" rel="nofollow">http://kiwiki.fmtnuni.sk/mediawiki/index.php/Description_of_gsim</a></div> </li> </ul> </div> <!-- EDIT1717 SECTION "Draft4: A new plotting application" [1726-] --></body> </html>
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