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MathGroup Archive 2001

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Scanning 2DGraph

  • To: mathgroup at smc.vnet.net
  • Subject: [mg26543] Scanning 2DGraph
  • From: Alvaro Nunez <Alvaro.Nunez at physics.nyu.edu>
  • Date: Fri, 5 Jan 2001 00:33:57 -0500 (EST)
  • Organization: New York University
  • Sender: owner-wri-mathgroup at wolfram.com

Hello All,

I have A 2D curve on paper. I want to interpolate the curve using
Mathematica. I would scan it with a scanner, save the image to a file,
convert
the curve image into a set of Cartesian coordinates (4-5000 dots) and
make
Mathematica read this set to interpolate the curve (approximately).

I know how to scan, but I don't know what kind of file I have to save
the
image to and how is it possible to convert the image to the set of
Cartesian coordinates. (Once I have the coordinates, I think I know how
to
use the Mathematica "Fit" and "Interpolate" functions.)

Thank you,

Alvaro


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