[Qgis-user] GRASS Newbie: empty results layers
Nicolas Cadieux
nicolas.cadieux at archeotec.ca
Sat Dec 20 09:08:11 PST 2014
I am not GRASS guru but I will do anything for a beer in Brussels....
My experience with grass tells me you need to be careful about the GRASS region and I see this...
GRASS_INFO_MESSAGE(14043,1): Default region was updated to the new projection, but if you have multiple mapsets `g.region -d` should be run in each to update the region from the default
GRASS_INFO_END(14043,1)
Not sure what it is but I would make sure the projections match.
I also see this : GRASS_INFO_WARNING(14046,61): 2 areas represent more (overlapping) features, because polygons overlap in input layer(s). Such areas are linked to more than 1 row in attribute table. The number of features for those areas is stored as category in layer 2
And stuff like : GRASS_INFO_ERROR(14052,1): Unable to open vector map on level 2. Try to rebuild vector topology by v.build.
GRASS_INFO_END(14052,1)
Could this be all linked to projections and grass regions.... Not sure...
I would also just try to run it directly in Grass... Making sure the region and projections are all the same. Like I say... Anything for that beer!!!
:)
Nicolas Cadieux M.Sc.
Le 2014-12-20 08:13, "Joris Hintjens [via OSGeo.org] " <ml-node+s1560n5178667h38 at n6.nabble.com> a écrit :
Hi, My first experiments with grass commands frustrate me. All tests I run end up with empty shp layers with 0 items.
I managed to “selectAll-copy" the log (but where is that log saved?) and this is the result.
Any comment will be rewarded with a beer next time you pass in Brussels.
Running QGis2.6.1 on OSX 10.10 Yosemite
thanks in advance
Joris
here’s the log
Algorithm v.distance - Finds the nearest element in vector map 'to' for elements in vector map 'from'. starting...
g.proj -c proj4="+proj=lcc +lat_1=51.16666723333333 +lat_2=49.8333339 +lat_0=90 +lon_0=4.367486666666666 +x_0=150000.013 +y_0=5400088.438 +ellps=intl +towgs84=-106.869,52.2978,-103.724,0.3366,-0.457,1.8422,-1.2747 +units=m +no_defs"
v.in.ogr min_area=0.0001 snap=-1 dsn="/Volumes/data/Users/nikh/Desktop/voornik/layers" layer=VWEALijstParkenDec2013 output=tmp1418734601363 --overwrite -o
v.in.ogr min_area=0.0001 snap=-1 dsn="/Volumes/data/Users/nikh/Desktop/voornik/layers" layer=AnkerplLamb72 output=tmp1418734601364 --overwrite -o
g.region n=240475.402871 s=153205.121463 e=258860.969192 w=22089.4926875 res=1
v.distance from=tmp1418734601363 to=tmp1418734601364 upload=dist column="NAAM" output=output217e40d03eca4799b41412537a6a4e11 --overwrite
v.out.ogr -s -c -e -z input=output217e40d03eca4799b41412537a6a4e11 dsn="/Volumes/data/Users/nikh/Desktop/voornik" format=ESRI_Shapefile olayer=test type=auto
Cleaning up temporary files ...
Starting GRASS ...
Executing '/Volumes/data/Users/nikh/.qgis2//processing/grass_batch_job.sh' ...
Welcome to GRASS 6.4.4 (2014)
GRASS_INFO_MESSAGE(14043,1): Default region was updated to the new projection, but if you have multiple mapsets `g.region -d` should be run in each to update the region from the default
GRASS_INFO_END(14043,1)
GRASS_INFO_MESSAGE(14043,2): Projection information updated
GRASS_INFO_END(14043,2)
GRASS_INFO_MESSAGE(14044,1): Over-riding projection check
GRASS_INFO_END(14044,1)
GRASS_INFO_MESSAGE(14044,2): Layer: VWEALijstParkenDec2013
GRASS_INFO_END(14044,2)
GRASS_INFO_MESSAGE(14044,3): Counting polygons for 80 features...
GRASS_INFO_END(14044,3)
GRASS_INFO_MESSAGE(14044,4): Importing map 80 features...
GRASS_INFO_END(14044,4)
GRASS_INFO_MESSAGE(14044,5): -----------------------------------------------------
GRASS_INFO_END(14044,5)
GRASS_INFO_MESSAGE(14044,6): Building topology for vector map ...
GRASS_INFO_END(14044,6)
GRASS_INFO_MESSAGE(14044,7): Registering primitives...
GRASS_INFO_END(14044,7)
GRASS_INFO_MESSAGE(14044,8): 80 primitives registered
GRASS_INFO_END(14044,8)
GRASS_INFO_MESSAGE(14044,9): 80 vertices registered
GRASS_INFO_END(14044,9)
GRASS_INFO_MESSAGE(14044,10): Number of nodes: 80
GRASS_INFO_END(14044,10)
GRASS_INFO_MESSAGE(14044,11): Number of primitives: 80
GRASS_INFO_END(14044,11)
GRASS_INFO_MESSAGE(14044,12): Number of points: 80
GRASS_INFO_END(14044,12)
GRASS_INFO_MESSAGE(14044,13): Number of lines: 0
GRASS_INFO_END(14044,13)
GRASS_INFO_MESSAGE(14044,14): Number of boundaries: 0
GRASS_INFO_END(14044,14)
GRASS_INFO_MESSAGE(14044,15): Number of centroids: 0
GRASS_INFO_END(14044,15)
GRASS_INFO_MESSAGE(14044,16): Number of areas: -
GRASS_INFO_END(14044,16)
GRASS_INFO_MESSAGE(14044,17): Number of isles: -
GRASS_INFO_END(14044,17)
GRASS_INFO_MESSAGE(14044,18): Building topology for vector map ...
GRASS_INFO_END(14044,18)
GRASS_INFO_MESSAGE(14044,19): Registering primitives...
GRASS_INFO_END(14044,19)
GRASS_INFO_MESSAGE(14044,20): 80 primitives registered
GRASS_INFO_END(14044,20)
GRASS_INFO_MESSAGE(14044,21): 80 vertices registered
GRASS_INFO_END(14044,21)
GRASS_INFO_MESSAGE(14044,22): Building areas...
GRASS_INFO_END(14044,22)
GRASS_INFO_MESSAGE(14044,23): 0 areas built
GRASS_INFO_END(14044,23)
GRASS_INFO_MESSAGE(14044,24): 0 isles built
GRASS_INFO_END(14044,24)
GRASS_INFO_MESSAGE(14044,25): Attaching islands...
GRASS_INFO_END(14044,25)
GRASS_INFO_MESSAGE(14044,26): Attaching centroids...
GRASS_INFO_END(14044,26)
GRASS_INFO_MESSAGE(14044,27): Number of nodes: 80
GRASS_INFO_END(14044,27)
GRASS_INFO_MESSAGE(14044,28): Number of primitives: 80
GRASS_INFO_END(14044,28)
GRASS_INFO_MESSAGE(14044,29): Number of points: 80
GRASS_INFO_END(14044,29)
GRASS_INFO_MESSAGE(14044,30): Number of lines: 0
GRASS_INFO_END(14044,30)
GRASS_INFO_MESSAGE(14044,31): Number of boundaries: 0
GRASS_INFO_END(14044,31)
GRASS_INFO_MESSAGE(14044,32): Number of centroids: 0
GRASS_INFO_END(14044,32)
GRASS_INFO_MESSAGE(14044,33): Number of areas: 0
GRASS_INFO_END(14044,33)
GRASS_INFO_MESSAGE(14044,34): Number of isles: 0
GRASS_INFO_END(14044,34)
GRASS_INFO_WARNING(14044,35): Input data contains 3D features. Created vector is 2D only, use -z flag to import 3D vector
GRASS_INFO_END(14044,35)
GRASS_INFO_MESSAGE(14046,1): Over-riding projection check
GRASS_INFO_END(14046,1)
GRASS_INFO_MESSAGE(14046,2): Layer: AnkerplLamb72
GRASS_INFO_END(14046,2)
GRASS_INFO_MESSAGE(14046,3): Counting polygons for 382 features...
GRASS_INFO_END(14046,3)
GRASS_INFO_MESSAGE(14046,4): Importing map 382 features...
GRASS_INFO_END(14046,4)
GRASS_INFO_MESSAGE(14046,5): -----------------------------------------------------
GRASS_INFO_END(14046,5)
GRASS_INFO_MESSAGE(14046,6): Building topology for vector map ...
GRASS_INFO_END(14046,6)
GRASS_INFO_MESSAGE(14046,7): Registering primitives...
GRASS_INFO_END(14046,7)
1000
GRASS_INFO_MESSAGE(14046,8): 1163 primitives registered
GRASS_INFO_END(14046,8)
GRASS_INFO_MESSAGE(14046,9): 83169 vertices registered
GRASS_INFO_END(14046,9)
GRASS_INFO_MESSAGE(14046,10): Number of nodes: 1160
GRASS_INFO_END(14046,10)
GRASS_INFO_MESSAGE(14046,11): Number of primitives: 1163
GRASS_INFO_END(14046,11)
GRASS_INFO_MESSAGE(14046,12): Number of points: 0
GRASS_INFO_END(14046,12)
GRASS_INFO_MESSAGE(14046,13): Number of lines: 0
GRASS_INFO_END(14046,13)
GRASS_INFO_MESSAGE(14046,14): Number of boundaries: 1163
GRASS_INFO_END(14046,14)
GRASS_INFO_MESSAGE(14046,15): Number of centroids: 0
GRASS_INFO_END(14046,15)
GRASS_INFO_MESSAGE(14046,16): Number of areas: -
GRASS_INFO_END(14046,16)
GRASS_INFO_MESSAGE(14046,17): Number of isles: -
GRASS_INFO_END(14046,17)
GRASS_INFO_MESSAGE(14046,18): -----------------------------------------------------
GRASS_INFO_END(14046,18)
GRASS_INFO_WARNING(14046,19): Cleaning polygons, result is not guaranteed!
GRASS_INFO_END(14046,19)
GRASS_INFO_MESSAGE(14046,20): -----------------------------------------------------
GRASS_INFO_END(14046,20)
GRASS_INFO_MESSAGE(14046,21): Break polygons:
GRASS_INFO_END(14046,21)
GRASS_INFO_MESSAGE(14046,22): -----------------------------------------------------
GRASS_INFO_END(14046,22)
GRASS_INFO_MESSAGE(14046,23): Remove duplicates:
GRASS_INFO_END(14046,23)
GRASS_INFO_MESSAGE(14046,24): -----------------------------------------------------
GRASS_INFO_END(14046,24)
GRASS_INFO_MESSAGE(14046,25): Break boundaries:
GRASS_INFO_END(14046,25)
GRASS_INFO_MESSAGE(14046,26): -----------------------------------------------------
GRASS_INFO_END(14046,26)
GRASS_INFO_MESSAGE(14046,27): Remove duplicates:
GRASS_INFO_END(14046,27)
GRASS_INFO_MESSAGE(14046,28): -----------------------------------------------------
GRASS_INFO_END(14046,28)
GRASS_INFO_MESSAGE(14046,29): Clean boundaries at nodes:
GRASS_INFO_END(14046,29)
GRASS_INFO_MESSAGE(14046,30): -----------------------------------------------------
GRASS_INFO_END(14046,30)
GRASS_INFO_MESSAGE(14046,31): Break boundaries:
GRASS_INFO_END(14046,31)
GRASS_INFO_MESSAGE(14046,32): -----------------------------------------------------
GRASS_INFO_END(14046,32)
GRASS_INFO_MESSAGE(14046,33): Remove duplicates:
GRASS_INFO_END(14046,33)
GRASS_INFO_MESSAGE(14046,34): -----------------------------------------------------
GRASS_INFO_END(14046,34)
GRASS_INFO_MESSAGE(14046,35): Clean boundaries at nodes:
GRASS_INFO_END(14046,35)
GRASS_INFO_MESSAGE(14046,36): -----------------------------------------------------
GRASS_INFO_END(14046,36)
GRASS_INFO_MESSAGE(14046,37): Merge boundaries:
GRASS_INFO_END(14046,37)
GRASS_INFO_MESSAGE(14046,38): -----------------------------------------------------
GRASS_INFO_END(14046,38)
GRASS_INFO_MESSAGE(14046,39): Change dangles to lines:
GRASS_INFO_END(14046,39)
GRASS_INFO_MESSAGE(14046,40): -----------------------------------------------------
GRASS_INFO_END(14046,40)
GRASS_INFO_MESSAGE(14046,41): Remove bridges:
GRASS_INFO_END(14046,41)
GRASS_INFO_MESSAGE(14046,42): -----------------------------------------------------
GRASS_INFO_END(14046,42)
GRASS_INFO_MESSAGE(14046,43): Building topology for vector map ...
GRASS_INFO_END(14046,43)
GRASS_INFO_MESSAGE(14046,44): Building areas...
GRASS_INFO_END(14046,44)
GRASS_INFO_MESSAGE(14046,45): 394 areas built
GRASS_INFO_END(14046,45)
GRASS_INFO_MESSAGE(14046,46): 362 isles built
GRASS_INFO_END(14046,46)
GRASS_INFO_MESSAGE(14046,47): Attaching islands...
GRASS_INFO_END(14046,47)
GRASS_INFO_MESSAGE(14046,48): Number of nodes: 1519
GRASS_INFO_END(14046,48)
GRASS_INFO_MESSAGE(14046,49): Number of primitives: 1758
GRASS_INFO_END(14046,49)
GRASS_INFO_MESSAGE(14046,50): Number of points: 0
GRASS_INFO_END(14046,50)
GRASS_INFO_MESSAGE(14046,51): Number of lines: 0
GRASS_INFO_END(14046,51)
GRASS_INFO_MESSAGE(14046,52): Number of boundaries: 1758
GRASS_INFO_END(14046,52)
GRASS_INFO_MESSAGE(14046,53): Number of centroids: 0
GRASS_INFO_END(14046,53)
GRASS_INFO_MESSAGE(14046,54): Number of areas: 394
GRASS_INFO_END(14046,54)
GRASS_INFO_MESSAGE(14046,55): Number of isles: 362
GRASS_INFO_END(14046,55)
GRASS_INFO_MESSAGE(14046,56): Number of areas without centroid: 394
GRASS_INFO_END(14046,56)
GRASS_INFO_MESSAGE(14046,57): -----------------------------------------------------
GRASS_INFO_END(14046,57)
GRASS_INFO_MESSAGE(14046,58): Find centroids for layer: AnkerplLamb72
GRASS_INFO_END(14046,58)
GRASS_INFO_MESSAGE(14046,59): -----------------------------------------------------
GRASS_INFO_END(14046,59)
GRASS_INFO_MESSAGE(14046,60): Write centroids:
GRASS_INFO_END(14046,60)
GRASS_INFO_WARNING(14046,61): 2 areas represent more (overlapping) features, because polygons overlap in input layer(s). Such areas are linked to more than 1 row in attribute table. The number of features for those areas is stored as category in layer 2
GRASS_INFO_END(14046,61)
GRASS_INFO_MESSAGE(14046,62): -----------------------------------------------------
GRASS_INFO_END(14046,62)
GRASS_INFO_MESSAGE(14046,63): 384 input polygons
GRASS_INFO_END(14046,63)
GRASS_INFO_MESSAGE(14046,64): Total area: 2.21065E+09 (394 areas)
GRASS_INFO_END(14046,64)
GRASS_INFO_MESSAGE(14046,65): Overlapping area: 1.21E-06 (2 areas)
GRASS_INFO_END(14046,65)
GRASS_INFO_MESSAGE(14046,66): Area without category: 69792.2 (8 areas)
GRASS_INFO_END(14046,66)
GRASS_INFO_MESSAGE(14046,67): -----------------------------------------------------
GRASS_INFO_END(14046,67)
GRASS_INFO_MESSAGE(14046,68): Building topology for vector map ...
GRASS_INFO_END(14046,68)
GRASS_INFO_MESSAGE(14046,69): Registering primitives...
GRASS_INFO_END(14046,69)
GRASS_INFO_MESSAGE(14046,70): 827 primitives registered
GRASS_INFO_END(14046,70)
GRASS_INFO_MESSAGE(14046,71): 82572 vertices registered
GRASS_INFO_END(14046,71)
GRASS_INFO_MESSAGE(14046,72): Building areas...
GRASS_INFO_END(14046,72)
GRASS_INFO_MESSAGE(14046,73): 394 areas built
GRASS_INFO_END(14046,73)
GRASS_INFO_MESSAGE(14046,74): 362 isles built
GRASS_INFO_END(14046,74)
GRASS_INFO_MESSAGE(14046,75): Attaching islands...
GRASS_INFO_END(14046,75)
GRASS_INFO_MESSAGE(14046,76): Attaching centroids...
GRASS_INFO_END(14046,76)
GRASS_INFO_MESSAGE(14046,77): Number of nodes: 795
GRASS_INFO_END(14046,77)
GRASS_INFO_MESSAGE(14046,78): Number of primitives: 827
GRASS_INFO_END(14046,78)
GRASS_INFO_MESSAGE(14046,79): Number of points: 0
GRASS_INFO_END(14046,79)
GRASS_INFO_MESSAGE(14046,80): Number of lines: 0
GRASS_INFO_END(14046,80)
GRASS_INFO_MESSAGE(14046,81): Number of boundaries: 441
GRASS_INFO_END(14046,81)
GRASS_INFO_MESSAGE(14046,82): Number of centroids: 386
GRASS_INFO_END(14046,82)
GRASS_INFO_MESSAGE(14046,83): Number of areas: 394
GRASS_INFO_END(14046,83)
GRASS_INFO_MESSAGE(14046,84): Number of isles: 362
GRASS_INFO_END(14046,84)
GRASS_INFO_MESSAGE(14046,85): Number of areas without centroid: 8
GRASS_INFO_END(14046,85)
GRASS_INFO_MESSAGE(14046,86): -----------------------------------------------------
GRASS_INFO_END(14046,86)
GRASS_INFO_WARNING(14046,87): Errors were encountered during the import
GRASS_INFO_END(14046,87)
GRASS_INFO_MESSAGE(14046,88): Try to import again, snapping with at least 1e-10: 'snap=1e-10'
GRASS_INFO_END(14046,88)
GRASS_INFO_ERROR(14050,1): Column not found in table
GRASS_INFO_END(14050,1)
GRASS_INFO_ERROR(14052,1): Unable to open vector map on level 2. Try to rebuild vector topology by v.build.
GRASS_INFO_END(14052,1)
Closing monitors ...
/Applications/QGIS.app/Contents/MacOS/grass/etc/Init.sh: line 1051: d.mon: command not found
Cleaning up temporary files ...
Batch job '/Volumes/data/Users/nikh/.qgis2//processing/grass_batch_job.sh' (defined in GRASS_BATCH_JOB variable) was executed.
Goodbye from GRASS GIS
Cleaning up temporary files ...
Starting GRASS ...
Executing '/Volumes/data/Users/nikh/.qgis2//processing/grass_batch_job.sh' ...
Welcome to GRASS 6.4.4 (2014)
GRASS_INFO_ERROR(14115,1): Unable to open vector map on level 2. Try to rebuild vector topology by v.build.
GRASS_INFO_END(14115,1)
Closing monitors ...
/Applications/QGIS.app/Contents/MacOS/grass/etc/Init.sh: line 1051: d.mon: command not found
Cleaning up temporary files ...
Batch job '/Volumes/data/Users/nikh/.qgis2//processing/grass_batch_job.sh' (defined in GRASS_BATCH_JOB variable) was executed.
Goodbye from GRASS GIS
Converting outputs
Loading resulting layers
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