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Subject: [gislist] Add arrow on the flow direction map
Date:  05/17/2007 12:18:45 PM
From:  xizhou .. vt.edu


Hi folks,

I want to display the flow direction arrow on each pixel. I know there is a
simple way to do it, but just can not figure it out.

Another question: is there a way to calculate the mean distance between two
contours? or the area between the contours?

Any hint or advice will be appreciated a lot.

Bob

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