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Extract a contour from a 3-D plot.

• To: mathgroup@smc.vnet.net
• Subject: [mg11292] Extract a contour from a 3-D plot.
• From: "Chris Farr" <farr@brown.edu>
• Date: Wed, 4 Mar 1998 01:39:44 -0500

I would like to extract a contour from a 3-D plot.

I am particularly interested in the contour associated with a value of =
zero.  That is, the curve generated when I set the option in
ContourPlot = to Contours->{0}.

How can I extract this contour ( I guess the contour would be a =
collection of XY coordinates) ?  What if there are two contours with a
= value of zero?  How can I extract both of them?  Thanks in advance.

Chris Farr

• Follow-Ups:
  • Re: Extract a contour from a 3-D plot.
    • From: Sean Ross <seanross@worldnet.att.net>