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Re: Line index [message #5989 is a reply to message #5957]

Fri, 15 March 1996 00:00

pit
Messages: 92
Registered: January 1996

Member

In article <31499FB9.2F6D@dlr.de>,
Hermann Mannstein <H.Mannstein@dlr.de> writes:
> Hello,

> is there a robust function which returns the indices within an image
> (like the where function) belonging to a line defined by two or more
> points.

for shure there is, even built-in IDL:
Index=polyfillv(xx,yy,xsize,ysize)
will give you the indices of the indices of the points surrounded by
the polygon given in the two vectors xx and yy for the x and y
coordinates, resp.
Read the manpage for further reference.

Peter

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~
Peter "Pit" Suetterlin http://www.kis.uni-freiburg.de/~ps
Kiepenheuer Institut fuer Sonnenphysik
Tel.: +49 761 3198-210 ps@kis.uni-freiburg.de
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		Re: Line index By: David Foster on Fri, 22 March 1996 00:00
		Re: Line index By: David Foster on Fri, 22 March 1996 00:00
		Re: Line index By: pit on Fri, 15 March 1996 00:00

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