Laura--
Just in case you thought I was being flip, let me assure you--I mean
it--the distance to the nearest centroid (of bodies of water) is not a
variable you can use for anything useful. However, if you have a file
of polygons for bodies of water rather than a file of centroids, the
method I outlined still works, finding then the distance to the
nearest vertex, which is a good approximation of the distance to
nearest water, and gets better as your polygon file gets more
detailed.
On Fri, Sep 11, 2009 at 9:28 AM, Austin Nichols <[email protected]> wrote:
>
> But are you using the centroids of the bodies of water? That seems
> like a strange measure of the distance to water!
>
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