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automeris-io / WebPlotDigitizer

Computer vision assisted tool to extract numerical data from plot images.
https://automeris.io
GNU Affero General Public License v3.0
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X-Axis Log option not functioning as suggested #327

Closed edaphos closed 6 months ago

edaphos commented 6 months ago

After calibrating X-Axis for log scale (as described in protocol) the digitized values returned are incorrect. Safety Data Covid-19 Please advise.

nbehrnd commented 6 months ago

Your report is thin. Did you use off-line version 4 (if so, OS?) or the online version 5? What diagram, and what trace you processed / aimed to process? If you got some digitized data, what are the readings?

Opting for a manual pick (without KI support) of the solid blue squares (MOD/Expected) in the fourth plot (NE_GSZ), I obtained these readings:

49.451, 3.9666
359.56, 2.9817
1852.9, 2.0544
1674.2, 1.0180
ankitrohatgi commented 6 months ago

I see a 0 on the x axis which is strange for log scale. Is the scale linear up to 10 and then log scale by any chance?

edaphos commented 6 months ago

OK. Calibrating x-axis with X1 = 10 and X2 = 10000, and not using points, I digitized positions along the x-axis, for "0", 10, 100, 1000, 10000 to yield corresponding digitized values of 5.9, 9.9, 71.6, 841.7, 10000. Must be a "mixed" plot ???

edaphos commented 6 months ago

Yes. Unfortunately, this chart (Fig 1) is rather odd. https://www.sciencedirect.com/science/article/pii/S0264410X24001270?via%3Dihub

ankitrohatgi commented 6 months ago

Yeah, something is weird with the axis. Distance from 10-100 is not the same as 100-1000

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