[GRASS-dev] [GRASS GIS] #3613: addons/r.convergence

GRASS GIS trac at osgeo.org
Fri Aug 3 14:57:31 PDT 2018

#3613: addons/r.convergence
 Reporter:  selvaje      |      Owner:  grass-dev@…
     Type:  defect       |     Status:  new
 Priority:  normal       |  Milestone:
Component:  Addons       |    Version:  unspecified
 Keywords:  convergence  |        CPU:  Unspecified
 Platform:  Linux        |
 I noticed a strange behavior of r.convergence in some tiles of my digital
 elevation model.
 In few words if I process a single tile I obtain a convergence result if I
 combine 4 tiles and rerun r.convergence I obtain another result. Such
 behavior appear only in few tiles along the same longitudinal gradient
 (see pdf). Seams to me that is something related with the bounding box of
 the tiles and the calculation of the distance.
 I'm doubting that is something related to the tiling system because I have
 computed several other topographic variables and the problem appear only
 with r.convergence.

 I attach the tar.gz with the data and the script to reproduce the error.

 Thanks for the support
 GRASS GIS 7.3.svn

Ticket URL: <https://trac.osgeo.org/grass/ticket/3613>
GRASS GIS <https://grass.osgeo.org>

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