Introduction
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This samples directory contains several sample image files that may be imported into
Engauge Digitizer (http://digitizer.sourceforge.net).

These files are listed below, with comments:

  corners.png - Graph that lots of corners that would be painful to digitize manually
  gridlines.gif - Graph with gridlines that are easily removed by Engauge
  gridlines_log.gif - Another graph with gridlines that are easily removed by Engauge
  gridlines_log.src - Creates gridlines_log.gif in gnuplot using 'load' command (not an image!)
  inverse.jpg - Image of y/x function
  inverse.png - Same as inverse.jpg but in png format
  linlog.jpg - Graph with linear/logarithmic coordinates
  linlog.png - Same as linlog.jpg but in png format
  loglin.png - Graph with logarithmic/linear coordinates
  loglog.png - Graph with logarithmic/logarithmic coordinates
  normdist.jpg - Graph of normal distribution
  normdist.png - Same as normdist.jpg but in png format
  pointplot.bmp - Graph with points that are easily captured by Engauge
  polarcircles.jpg - Polar plot for experimenting. No coordinates are displayed, so not very useful
  polarplot.jpg - Polar plot with cardioid pattern
  polarplot.png - Same as polarplot.jpg but in png format
  testcase.jpg - Simple graph that serves as an excellent starting point for the new user
  testcase.png - Same as testcase.jpg but in png format
  testcoords.jpg - Advanced graph used by developers to check the affine transformations in Engauge
  testcoords.sxd - Open Office document used to create testcoords.jpg (not an image!)
  usgs.png - Fictional map loosely based on U.S. Geological Survey topographic maps
  
Licensing
---------
All of the files in this directory were created by an Engauge Digitizer developer, and 
are subject to the GNU General Public License as published by the Free Software Foundation; 
either version 2 of the License, or (at your option) any later version.

