Provided by: g3data_1.5.3-2.1build1_amd64

**NAME**

g3data— A tool for extracting data from graphs.

**SYNOPSIS**

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

**DESCRIPTION**

2001-01-01;g3datais 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**

-maxxyIf picture is larger x-wise than x or y-wise than y, the picture is scaled down accordingly otherwise this parameter has no effect.-scalefactorScales the picture size by factor. This parameter nullifies effect of the -max parameter.-coordsllxllyruxruyPreset the coordinates of the left lower (ll) corner and the right upper (ru) corner.-errorsPrint out the error of the x value in column 3 and the error of y value in column 4 of the output.-lnxUse logarithmic scale for x coordinates.-lnyUse 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.pngg3data-scale 2 -lny -errors test2.png

**BUGS**

None known.

**AUTHOR**

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