g3data(1)
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 pic
- ture 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