[GRASS-dev] v.clean problem with rmarea (ERROR: Area merging failed)

GRASS GIS GRASS GIS developer
1

Hi,

(SVN G7)

it does work with thres inferior to 600, but not above…

v.clean input=vnir4567_seg_0 output=vnir4567_seg_0_no_small_areas type=area tool=rmarea thres=10000.00 --overwrite

Tool: Threshold
Remove small areas: 10000

WARNING: Vector map <vnir4567_seg_0_no_small_areas> already exists and will be overwritten
Copying features…
Rebuilding parts of topology…
Building topology for vector map vnir4567_seg_0_no_small_areas@PERMANENT…
Registering primitives…
19070 primitives registered
187624 vertices registered
Building areas…
5344 areas built
251 isles built
Attaching islands…
Attaching centroids…
Number of nodes: 8636
Number of primitives: 19070
Number of points: 0
Number of lines: 0
Number of boundaries: 13729
Number of centroids: 5341
Number of areas: 5344
Number of isles: 251

Tool: Remove small areas
ERROR: Area merging failed

–

2

Projection is in meters…

projection: 1 (UTM)
zone: 26
datum: wgs84
ellipsoid: wgs84
north: 1666020
south: 1639095
west: 767715
east: 794535
nsres: 15
ewres: 15
rows: 1795
cols: 1788
cells: 3209460

···

On 31 December 2013 09:53, Yann Chemin <ychemin@gmail.com> wrote:

Hi,

(SVN G7)

it does work with thres inferior to 600, but not above…

v.clean input=vnir4567_seg_0 output=vnir4567_seg_0_no_small_areas type=area tool=rmarea thres=10000.00 --overwrite

Tool: Threshold
Remove small areas: 10000

WARNING: Vector map <vnir4567_seg_0_no_small_areas> already exists and will be overwritten
Copying features…
Rebuilding parts of topology…
Building topology for vector map vnir4567_seg_0_no_small_areas@PERMANENT…
Registering primitives…
19070 primitives registered
187624 vertices registered
Building areas…
5344 areas built
251 isles built
Attaching islands…
Attaching centroids…
Number of nodes: 8636
Number of primitives: 19070
Number of points: 0
Number of lines: 0
Number of boundaries: 13729
Number of centroids: 5341
Number of areas: 5344
Number of isles: 251

Tool: Remove small areas
ERROR: Area merging failed

–

–

3

On Tue, Dec 31, 2013 at 5:23 AM, Yann Chemin <ychemin@gmail.com> wrote:

Hi,
(SVN G7)
it does work with thres inferior to 600, but not above...

---------------

v.clean input=vnir4567_seg_0 output=vnir4567_seg_0_no_small_areas type=area
tool=rmarea thres=10000.00 --overwrite
--------------------------------------------------
Tool: Threshold
Remove small areas: 10000
--------------------------------------------------
WARNING: Vector map <vnir4567_seg_0_no_small_areas> already exists and will
be overwritten
Copying features...
Rebuilding parts of topology...
Building topology for vector map
<vnir4567_seg_0_no_small_areas@PERMANENT>...
Registering primitives...
19070 primitives registered
187624 vertices registered
Building areas...
5344 areas built
251 isles built
Attaching islands...
Attaching centroids...
Number of nodes: 8636
Number of primitives: 19070
Number of points: 0
Number of lines: 0
Number of boundaries: 13729
Number of centroids: 5341
Number of areas: 5344
Number of isles: 251
--------------------------------------------------
Tool: Remove small areas
ERROR: Area merging failed

Should be fixed in r58647.

Markus M