[GRASS-user] Openness Calculation
rabennett at ymail.com
Tue Nov 5 01:00:45 PST 2013
Thank you everyone for your suggestions and links to further papers (and apologies for the multiple original posts - I think my computer must have been having a moment)
r.geomorphons looks like just the ticket - time to experiment!
On Monday, 4 November 2013, 21:01, Helmut Kudrnovsky <hellik at web.de> wrote:
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)
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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