Markus Metz wrote: > > I am going to backport r.cost/r.walk/r.drain from 6.5 to 6.4.
Done in r54470-1. > > Happy new year, > > Markus M > >> >> best wishes >> >> miltinho >> >> >> 2012/12/30, Markus Metz <markus.metz.gisw...@gmail.com>: >>> On Sun, Dec 30, 2012 at 8:59 PM, Milton Cezar Ribeiro >>> <miltinho.astrona...@gmail.com> wrote: >>>> Hi Rashad >>>> >>>> I tested with the trunk svn, but apparently it still not worked to me. >>>> Are you able to test with my datased? >>>> >>>> https://www.yousendit.com/download/UW16RE9zTkxlM1JBSXNUQw >>> >>> What are the commands you used? I found >>> r.drain input=custo_aux_cost output=custo_aux_cost_drain >>> vector_points=map_target_pt >>> >>> You need to also provide a direction map with the indir option of r.drain. >>> >>> Markus M >>> >>>> >>>> Thanks! >>>> >>>> miltinho >>>> >>>> 2012/12/27, Mohammed Rashad <mohammedrasha...@gmail.com>: >>>>> Hi Milton, >>>>> >>>>> I think this fix will solve the problem[0]. For elevation data there >>>>> might >>>>> be cases where no path exists ie, only single pixel is the selected path. >>>>> I >>>>> had tested it by myself and it worked. >>>>> >>>>> Please apply the patch and let me know. >>>>> >>>>> If any problem comes in compilation or doing r.drain let me know. It >>>>> will >>>>> be great if you can share the test data you are using in case not >>>>> working >>>>> after applying the patch >>>>> >>>>> [0] http://trac.osgeo.org/grass/attachment/ticket/1840/r.drain.diff >>>>> [1] http://trac.osgeo.org/grass/attachment/ticket/1840/drain.c >>>>> >>>>> >>>>> On Thu, Dec 27, 2012 at 2:31 AM, Milton Cezar Ribeiro < >>>>> miltinho.astrona...@gmail.com> wrote: >>>>> >>>>>> Hi Mohamed and Markus >>>>>> >>>>>> Mohamed, thanks for your reply, I will wait for a solution within GRASS >>>>>> :-) >>>>>> >>>>>> Markus, thanks for your reply,. Sorry but I disagree a tiny bit, >>>>>> because is expected that between a source and target I will find a >>>>>> solution with the Least Cost path. Do you think that is there any >>>>>> situation where a least cost between source and target will not be >>>>>> found? Maybe if other software provide the soluction, although is not >>>>>> the bestest option, I prefere receive one complete output than a >>>>>> broken one. >>>>>> >>>>>> Happy new year! >>>>>> >>>>>> miltinho >>>>>> >>>>>> 2012/12/23, Markus Metz <markus.metz.gisw...@gmail.com>: >>>>>> > On Sun, Dec 23, 2012 at 7:07 PM, Milton Cezar Ribeiro >>>>>> > <miltinho.astrona...@gmail.com> wrote: >>>>>> >> Dear all, >>>>>> >> >>>>>> >> I am running a least cost path analysis combining r.cost and >>>>>> >> r.drain. >>>>>> >> But on some cases, when the least cost path between source and >>>>>> >> target >>>>>> >> reach the border of my map, r.drain stop on that position, and >>>>>> >> target >>>>>> >> point isn´t reached. >>>>>> > >>>>>> > This is correct because at the borders, the direction can not be >>>>>> > determined, the path could lead out of the current region, you can >>>>>> > not >>>>>> > tell. >>>>>> > >>>>>> > Running on other softwares the algorithms the >>>>>> >> source and target is connected using edges without problem. >>>>>> > >>>>>> > If in doubt, I would call it a bug in that other software. >>>>>> > >>>>>> >> >>>>>> >> Any hint are welcome. >>>>>> > >>>>>> > Try to expand the current region >>>>>> > >>>>>> > Markus M >>>>>> > >>>>>> >>>>>> >>>>>> -- >>>>>> Miltinho - m...@rc.unesp.br >>>>>> Laboratório de Ecologia Espacial e Conservação - LEEC >>>>>> Depto de Ecologia - UNESP - Rio Claro >>>>>> Av. 24A, 1515- Bela Vista >>>>>> 13506-900 Rio Claro, SP, Brasil >>>>>> >>>>>> Fone: +55 19 3526-9647 (office) 19 3526-9680 (lab) >>>>>> Cel: 19 9853-3220 / 19 9853-5430 >>>>>> >>>>>> Depto Ecologia http://www.rc.unesp.br/ib/ecologia/ >>>>>> >>>>>> PG ECO & BIODIV >>>>>> http://www.rc.unesp.br/ib/ecologia/posbiodiversidade/index.php >>>>>> >>>>>> CV >>>>>> http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4792988H6&mostrarNroCitacoesISI=true&mostrarNroCitacoesScopus=true >>>>>> >>>>>> Google citations http://scholar.google.com/citations?user=OWX_2eAAAAAJ >>>>>> _______________________________________________ >>>>>> grass-user mailing list >>>>>> grass-user@lists.osgeo.org >>>>>> http://lists.osgeo.org/mailman/listinfo/grass-user >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Regards, >>>>> Rashad >>>>> >>>> >>>> >>>> -- >>>> Miltinho - m...@rc.unesp.br >>>> Laboratório de Ecologia Espacial e Conservação - LEEC >>>> Depto de Ecologia - UNESP - Rio Claro >>>> Av. 24A, 1515- Bela Vista >>>> 13506-900 Rio Claro, SP, Brasil >>>> >>>> Fone: +55 19 3526-9647 (office) 19 3526-9680 (lab) >>>> Cel: 19 9853-3220 / 19 9853-5430 >>>> >>>> Depto Ecologia http://www.rc.unesp.br/ib/ecologia/ >>>> >>>> PG ECO & BIODIV >>>> http://www.rc.unesp.br/ib/ecologia/posbiodiversidade/index.php >>>> >>>> CV >>>> http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4792988H6&mostrarNroCitacoesISI=true&mostrarNroCitacoesScopus=true >>>> >>>> Google citations http://scholar.google.com/citations?user=OWX_2eAAAAAJ >>> >> >> >> -- >> Miltinho - m...@rc.unesp.br >> Laboratório de Ecologia Espacial e Conservação - LEEC >> Depto de Ecologia - UNESP - Rio Claro >> Av. 24A, 1515- Bela Vista >> 13506-900 Rio Claro, SP, Brasil >> >> Fone: +55 19 3526-9647 (office) 19 3526-9680 (lab) >> Cel: 19 9853-3220 / 19 9853-5430 >> >> Depto Ecologia http://www.rc.unesp.br/ib/ecologia/ >> >> PG ECO & BIODIV >> http://www.rc.unesp.br/ib/ecologia/posbiodiversidade/index.php >> >> CV >> http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4792988H6&mostrarNroCitacoesISI=true&mostrarNroCitacoesScopus=true >> >> Google citations http://scholar.google.com/citations?user=OWX_2eAAAAAJ _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user