g3data — A tool for extracting data from graphs.

       Jonas  Frantz  jonas.frantz@welho.comg3data    (1)

       None known.

       2001-01-01;

       g3data is a tool for extracting data from scanned graphs. For graphs published in scientific articles the
       actual data is usually not explicitly given ; g3data makes the process of extracting this data easy.

g3data     —   A tool for extracting data from graphs.

-maxxy  If picture is larger x-wise than x or y-wise than y, the picture  is  scaled  down  accordingly
                 otherwise this parameter has no effect.

       -scalefactor
                 Scales the picture size by factor. This parameter nullifies effect of the -max parameter.

       -coordsllxllyruxruy
                 Preset the coordinates of the left lower (ll) corner and the right upper (ru) corner.

       -errors   Print  out  the  error  of  the x value in column 3 and the error of y value in column 4 of the
                 output.

       -lnx      Use logarithmic scale for x coordinates.

       -lny      Use logarithmic scale for y coordinates.

       filename(s)...
                 The filename(s) of the image(s) to open.  Supported image formats: PNG, XPM, JPEG,  TIFF,  PNM,
                 RAS, BMP and GIF.

g3data  [-maxxy][-scalefactor][-coordsllxllyruxruy][-errors][-lnx][-lny][filename(s)...]

g3data -scale 2 -errors test1.png

       g3data -scale 2 -lny -errors test2.png