[GRASS-user] Openness Calculation
hellik at web.de
Mon Nov 4 13:00:47 PST 2013
Rebecca Bennett wrote
> Dear GRASS users,
> I have recently been made aware of the positive and negative openness
> vizualisations (Yokoyama et al 2002
> and would like to try to compute them in GRASS to help identify micro
> Though I suspect that this has already been done, I can't find a heads up
> other than this paper (which claims to have creates the web service based
> on GRASS here
> Just a note that although similar in it's aim of highlighting
> microtopography, this is not quite the same as the r.horizon calculation
> (image attached for clarification).
> All the best,
> grass-user mailing list
> grass-user at .osgeo
> Openness.png (109K)
at http://sil.uc.edu/downloads.html see
T.F. Stepinski, and J. Jasiewicz (2011) Geomorphons - A New Approach to
Classification of Landforms, in: T. Hengl, I. S. Evans, J. P. Wilson, M.
Gould (Eds.), Geomorphometry 2011, pp. 109-112. paper. Watch a video of an
actual presentation of this paper at the Geomorphometry 2011 conference.
there is a nice video that shows their work is based upon Yokoyama et al
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