This is the command g3data that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
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
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