NAME

       g3data     —   A tool for extracting data from graphs.

SYNOPSIS

       g3data  [-max  x  y]  [-scale factor]  [-coords llx lly rux ruy]  [-errors]  [-lnx]  [-lny]  [filename(s)
       ...]

DESCRIPTION

       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.

OPTIONS

       -max x y  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.

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

       -coords llx lly rux ruy
                 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.

USAGE

       g3data -scale 2 -errors test1.png

       g3data -scale 2 -lny -errors test2.png

BUGS

       None known.

AUTHOR

       Jonas  Frantz  jonas.frantz@welho.com

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