this bug's URL: http://intevation.de/rt/webrt?serial_num=3468
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Subject: recursive use of r.thin leaves crowded areas
Platform: GNU/Linux/i386
grass obtained from: Trento Italy site
grass binary for platform: Compiled from Sources
GRASS Version: grass-6.1.cvs_src_snapshot_2005_05_14
r.thin doesn't find any crowded areas:
r.thin in=rast1 out=rast2
r.thin in=rast2 out=rast3
File mwin_rast8_thin1 -- 21 rows X 26 columns
Bounding box: l = 2, r = 27, t = 2, b = 22
Path number 1
Deleted 0 pixels <--- !!!
thinning completed successfully.
Output file 21 rows X 26 columns
Window 21 rows X 26 columns
but there are still some left:
http://geo4.uibk.ac.at/users/rutzinger/download/thinning_problem.jpg
(this stops for example a vectorisation of the thinned raster)
ascii-raster for reconstructing the problem:
http://geo4.uibk.ac.at/users/rutzinger/download/thin_problem
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