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Re: contouring from an explicit point in an array [message #34709]

Thu, 03 April 2003 09:59

K. Bowman
Messages: 330
Registered: May 2000

Senior Member

In article <b6href$lg7$1@agate.berkeley.edu>,
egraves@socrates.Berkeley.EDU (Ted Graves) wrote:

> Is there a way to get only the contour of an image that passes through a
> given point? I'm currently doing this by contouring the entire image
> using the intensity of the desired point as a level, and then only keeping
> the contour with a vertex within half a pixel of that point. But this
> seems pretty kludgey and error-prone to me.

Are you using the PATH_INFO and PATH_XY keywords to retrieve the
coordinates of the contour from CONTOUR? Those paths may have multiple
pieces, so you will have to select the one you want using a method like
the one you are currently using.

Ken Bowman

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		Re: contouring from an explicit point in an array By: K. Bowman on Thu, 03 April 2003 09:59
		Re: contouring from an explicit point in an array By: Matt Feinstein on Thu, 03 April 2003 09:57

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