Rebecca, The module I was thinking of is r.param.scale; where are you finding r.geomorphons? I can't find it.
Tom On Tuesday, November 5, 2013, Rebecca Bennett wrote: > 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! > > Best wishes, > Rebecca > > > > On Monday, 4 November 2013, 21:01, Helmut Kudrnovsky > <[email protected]<javascript:_e({}, 'cvml', '[email protected]');>> > wrote: > Rebecca Bennett wrote > > Dear GRASS users, > > > > I have recently been made aware of the positive and negative openness > > vizualisations (Yokoyama et al 2002 > > > http://www.asprs.org/a/publications/pers/2002journal/march/2002_mar_257-265.pdf > ) > > and would like to try to compute them in GRASS to help identify micro > > relief. > > > > 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 > > http://geobrain.laits.gmu.edu/grassweb/manuals/raster/openness.html) > > > http://www.lpi.usra.edu/science/stepinskiWebPage/pdfFiles/geoinformaticsConf2009.pdf > > > > 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, > > Rebecca > > _______________________________________________ > > grass-user mailing list > > > [email protected] <javascript:_e({}, 'cvml', '[email protected]');> > > > http://lists.osgeo.org/mailman/listinfo/grass-user > > > > Openness.png (109K) > > < > http://osgeo-org.1560.x6.nabble.com/attachment/5087322/0/Openness.png%3E > > at http://sil.uc.edu/downloads.htmlsee > > 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 > > 2002. > > > > > ----- > best regards > Helmut > -- > View this message in context: > http://osgeo-org.1560.x6.nabble.com/Openness-Calculation-tp5087322p5087347.html > Sent from the Grass - Users mailing list archive at Nabble.com. > _______________________________________________ > grass-user mailing list > [email protected] <javascript:_e({}, 'cvml', > '[email protected]');> > http://lists.osgeo.org/mailman/listinfo/grass-user > > -- Thomas E Adams, III 718 McBurney Drive Lebanon, OH 45036 1 (513) 739-9512 (cell)
_______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
