Reconstruction of Data from a Chart or Graph

I have here several charts of driving cycles. These are standard plots derived from real traffic data, of velocity versus time. Unfortunately I cannot find the data anywhere. So I hatched a plan: maybe there’s software that will reconstruct data from a graph or chart? Does anyone know? If not, I’ll just write it myself and open source it. It seems like a generally useful thing in engineering and science. It deserves an application (maybe even a web application).

Unified California Drivecycle

~ by Danielle Fong on October 26, 2008.

Posted in Engineering, Problem Solving, Programming, Science

5 Responses to “Reconstruction of Data from a Chart or Graph”

  1. http://www.google.com/search?q=“extract+data+from+a+graph” returns a number of plausible alternatives.

    Daniel Tunkelang said this on October 26, 2008 at 10:48 pm | Reply

  2. Check out:

    http://www.frantz.fi/software/g3data.php

    Dan said this on October 26, 2008 at 11:24 pm | Reply

  3. Thanks guys,

    Your google-fu is strong.

    *bows*

    Danielle Fong said this on October 27, 2008 at 4:46 am | Reply

  4. Patience, young padawan, I am an information seeking professional, trained in the use of the google-fu.

    Daniel Tunkelang said this on October 29, 2008 at 2:43 pm | Reply

  5. Just came across this:
    “GraphClick is a graph digitizer software which allows to automatically retrieve the original (x,y)-data from the image of a scanned graph or from a QuickTime movie.”
    http://www.arizona-software.ch/graphclick/
    Then your post…

    Robert said this on November 9, 2008 at 2:15 am | Reply

Leave a Reply