<p dir="ltr">I am not GRASS guru but I will do anything for a beer in Brussels....</p>
<p dir="ltr">My experience with grass tells me you need to be careful about the GRASS region and I see this...<br></p>
<p dir="ltr">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 <br>
GRASS_INFO_END(14043,1) <br></p>
<p dir="ltr">Not sure what it is but I would make sure the projections match. <br></p>
<p dir="ltr">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 </p>
<p dir="ltr">And stuff like : GRASS_INFO_ERROR(14052,1): Unable to open vector map on level 2. Try to rebuild vector topology by v.build. <br>
GRASS_INFO_END(14052,1) </p>
<p dir="ltr">Could this be all linked to projections and grass regions.... Not sure... </p>
<p dir="ltr">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!!!<br>
:)</p>
<p dir="ltr">Nicolas Cadieux M.Sc.<br>
</p>
<div class="quote">Le 2014-12-20 08:13, "Joris Hintjens [via OSGeo.org] " <<a href="/user/SendEmail.jtp?type=node&node=5178693&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>> a écrit :<br type='attribution'><blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi, My first experiments with grass commands frustrate me. All tests I run end up with empty shp layers with 0 items.
<br/>I managed to “selectAll-copy" the log (but where is that log saved?) and this is the result.
<br/>Any comment will be rewarded with a beer next time you pass in Brussels.
<br/><br/>Running QGis2.6.1 on OSX 10.10 Yosemite
<br/>thanks in advance
<br/><br/>Joris
<br/><br/>here’s the log
<br/><br/>Algorithm v.distance - Finds the nearest element in vector map 'to' for elements in vector map 'from'. starting...
<br/>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"
<br/>v.in.ogr min_area=0.0001 snap=-1 dsn="/Volumes/data/Users/nikh/Desktop/voornik/layers" layer=VWEALijstParkenDec2013 output=tmp1418734601363 --overwrite -o
<br/>v.in.ogr min_area=0.0001 snap=-1 dsn="/Volumes/data/Users/nikh/Desktop/voornik/layers" layer=AnkerplLamb72 output=tmp1418734601364 --overwrite -o
<br/>g.region n=240475.402871 s=153205.121463 e=258860.969192 w=22089.4926875 res=1
<br/>v.distance from=tmp1418734601363 to=tmp1418734601364 upload=dist column="NAAM" output=output217e40d03eca4799b41412537a6a4e11 --overwrite
<br/>v.out.ogr -s -c -e -z input=output217e40d03eca4799b41412537a6a4e11 dsn="/Volumes/data/Users/nikh/Desktop/voornik" format=ESRI_Shapefile olayer=test type=auto
<br/>Cleaning up temporary files ...
<br/>Starting GRASS ...
<br/>Executing '/Volumes/data/Users/nikh/.qgis2//processing/grass_batch_job.sh' ...
<br/>Welcome to GRASS 6.4.4 (2014)
<br/><br/>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
<br/>GRASS_INFO_END(14043,1)
<br/><br/>GRASS_INFO_MESSAGE(14043,2): Projection information updated
<br/>GRASS_INFO_END(14043,2)
<br/><br/>GRASS_INFO_MESSAGE(14044,1): Over-riding projection check
<br/>GRASS_INFO_END(14044,1)
<br/><br/>GRASS_INFO_MESSAGE(14044,2): Layer: VWEALijstParkenDec2013
<br/>GRASS_INFO_END(14044,2)
<br/><br/>GRASS_INFO_MESSAGE(14044,3): Counting polygons for 80 features...
<br/>GRASS_INFO_END(14044,3)
<br/><br/><br/>GRASS_INFO_MESSAGE(14044,4): Importing map 80 features...
<br/>GRASS_INFO_END(14044,4)
<br/><br/>GRASS_INFO_MESSAGE(14044,5): -----------------------------------------------------
<br/>GRASS_INFO_END(14044,5)
<br/><br/>GRASS_INFO_MESSAGE(14044,6): Building topology for vector map ...
<br/>GRASS_INFO_END(14044,6)
<br/><br/>GRASS_INFO_MESSAGE(14044,7): Registering primitives...
<br/>GRASS_INFO_END(14044,7)
<br/><br/>GRASS_INFO_MESSAGE(14044,8): 80 primitives registered
<br/>GRASS_INFO_END(14044,8)
<br/><br/>GRASS_INFO_MESSAGE(14044,9): 80 vertices registered
<br/>GRASS_INFO_END(14044,9)
<br/><br/>GRASS_INFO_MESSAGE(14044,10): Number of nodes: 80
<br/>GRASS_INFO_END(14044,10)
<br/><br/>GRASS_INFO_MESSAGE(14044,11): Number of primitives: 80
<br/>GRASS_INFO_END(14044,11)
<br/><br/>GRASS_INFO_MESSAGE(14044,12): Number of points: 80
<br/>GRASS_INFO_END(14044,12)
<br/><br/>GRASS_INFO_MESSAGE(14044,13): Number of lines: 0
<br/>GRASS_INFO_END(14044,13)
<br/><br/>GRASS_INFO_MESSAGE(14044,14): Number of boundaries: 0
<br/>GRASS_INFO_END(14044,14)
<br/><br/>GRASS_INFO_MESSAGE(14044,15): Number of centroids: 0
<br/>GRASS_INFO_END(14044,15)
<br/><br/>GRASS_INFO_MESSAGE(14044,16): Number of areas: -
<br/>GRASS_INFO_END(14044,16)
<br/><br/>GRASS_INFO_MESSAGE(14044,17): Number of isles: -
<br/>GRASS_INFO_END(14044,17)
<br/><br/>GRASS_INFO_MESSAGE(14044,18): Building topology for vector map ...
<br/>GRASS_INFO_END(14044,18)
<br/><br/>GRASS_INFO_MESSAGE(14044,19): Registering primitives...
<br/>GRASS_INFO_END(14044,19)
<br/><br/>GRASS_INFO_MESSAGE(14044,20): 80 primitives registered
<br/>GRASS_INFO_END(14044,20)
<br/><br/>GRASS_INFO_MESSAGE(14044,21): 80 vertices registered
<br/>GRASS_INFO_END(14044,21)
<br/><br/>GRASS_INFO_MESSAGE(14044,22): Building areas...
<br/>GRASS_INFO_END(14044,22)
<br/><br/><br/>GRASS_INFO_MESSAGE(14044,23): 0 areas built
<br/>GRASS_INFO_END(14044,23)
<br/><br/>GRASS_INFO_MESSAGE(14044,24): 0 isles built
<br/>GRASS_INFO_END(14044,24)
<br/><br/>GRASS_INFO_MESSAGE(14044,25): Attaching islands...
<br/>GRASS_INFO_END(14044,25)
<br/><br/>GRASS_INFO_MESSAGE(14044,26): Attaching centroids...
<br/>GRASS_INFO_END(14044,26)
<br/><br/><br/>GRASS_INFO_MESSAGE(14044,27): Number of nodes: 80
<br/>GRASS_INFO_END(14044,27)
<br/><br/>GRASS_INFO_MESSAGE(14044,28): Number of primitives: 80
<br/>GRASS_INFO_END(14044,28)
<br/><br/>GRASS_INFO_MESSAGE(14044,29): Number of points: 80
<br/>GRASS_INFO_END(14044,29)
<br/><br/>GRASS_INFO_MESSAGE(14044,30): Number of lines: 0
<br/>GRASS_INFO_END(14044,30)
<br/><br/>GRASS_INFO_MESSAGE(14044,31): Number of boundaries: 0
<br/>GRASS_INFO_END(14044,31)
<br/><br/>GRASS_INFO_MESSAGE(14044,32): Number of centroids: 0
<br/>GRASS_INFO_END(14044,32)
<br/><br/>GRASS_INFO_MESSAGE(14044,33): Number of areas: 0
<br/>GRASS_INFO_END(14044,33)
<br/><br/>GRASS_INFO_MESSAGE(14044,34): Number of isles: 0
<br/>GRASS_INFO_END(14044,34)
<br/><br/>GRASS_INFO_WARNING(14044,35): Input data contains 3D features. Created vector is 2D only, use -z flag to import 3D vector
<br/>GRASS_INFO_END(14044,35)
<br/><br/>GRASS_INFO_MESSAGE(14046,1): Over-riding projection check
<br/>GRASS_INFO_END(14046,1)
<br/><br/>GRASS_INFO_MESSAGE(14046,2): Layer: AnkerplLamb72
<br/>GRASS_INFO_END(14046,2)
<br/><br/>GRASS_INFO_MESSAGE(14046,3): Counting polygons for 382 features...
<br/>GRASS_INFO_END(14046,3)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,4): Importing map 382 features...
<br/>GRASS_INFO_END(14046,4)
<br/><br/>GRASS_INFO_MESSAGE(14046,5): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,5)
<br/><br/>GRASS_INFO_MESSAGE(14046,6): Building topology for vector map ...
<br/>GRASS_INFO_END(14046,6)
<br/><br/>GRASS_INFO_MESSAGE(14046,7): Registering primitives...
<br/>GRASS_INFO_END(14046,7)
<br/>1000
<br/>GRASS_INFO_MESSAGE(14046,8): 1163 primitives registered
<br/>GRASS_INFO_END(14046,8)
<br/><br/>GRASS_INFO_MESSAGE(14046,9): 83169 vertices registered
<br/>GRASS_INFO_END(14046,9)
<br/><br/>GRASS_INFO_MESSAGE(14046,10): Number of nodes: 1160
<br/>GRASS_INFO_END(14046,10)
<br/><br/>GRASS_INFO_MESSAGE(14046,11): Number of primitives: 1163
<br/>GRASS_INFO_END(14046,11)
<br/><br/>GRASS_INFO_MESSAGE(14046,12): Number of points: 0
<br/>GRASS_INFO_END(14046,12)
<br/><br/>GRASS_INFO_MESSAGE(14046,13): Number of lines: 0
<br/>GRASS_INFO_END(14046,13)
<br/><br/>GRASS_INFO_MESSAGE(14046,14): Number of boundaries: 1163
<br/>GRASS_INFO_END(14046,14)
<br/><br/>GRASS_INFO_MESSAGE(14046,15): Number of centroids: 0
<br/>GRASS_INFO_END(14046,15)
<br/><br/>GRASS_INFO_MESSAGE(14046,16): Number of areas: -
<br/>GRASS_INFO_END(14046,16)
<br/><br/>GRASS_INFO_MESSAGE(14046,17): Number of isles: -
<br/>GRASS_INFO_END(14046,17)
<br/><br/>GRASS_INFO_MESSAGE(14046,18): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,18)
<br/><br/>GRASS_INFO_WARNING(14046,19): Cleaning polygons, result is not guaranteed!
<br/>GRASS_INFO_END(14046,19)
<br/><br/>GRASS_INFO_MESSAGE(14046,20): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,20)
<br/><br/>GRASS_INFO_MESSAGE(14046,21): Break polygons:
<br/>GRASS_INFO_END(14046,21)
<br/><br/><br/><br/>GRASS_INFO_MESSAGE(14046,22): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,22)
<br/><br/>GRASS_INFO_MESSAGE(14046,23): Remove duplicates:
<br/>GRASS_INFO_END(14046,23)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,24): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,24)
<br/><br/>GRASS_INFO_MESSAGE(14046,25): Break boundaries:
<br/>GRASS_INFO_END(14046,25)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,26): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,26)
<br/><br/>GRASS_INFO_MESSAGE(14046,27): Remove duplicates:
<br/>GRASS_INFO_END(14046,27)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,28): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,28)
<br/><br/>GRASS_INFO_MESSAGE(14046,29): Clean boundaries at nodes:
<br/>GRASS_INFO_END(14046,29)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,30): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,30)
<br/><br/>GRASS_INFO_MESSAGE(14046,31): Break boundaries:
<br/>GRASS_INFO_END(14046,31)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,32): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,32)
<br/><br/>GRASS_INFO_MESSAGE(14046,33): Remove duplicates:
<br/>GRASS_INFO_END(14046,33)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,34): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,34)
<br/><br/>GRASS_INFO_MESSAGE(14046,35): Clean boundaries at nodes:
<br/>GRASS_INFO_END(14046,35)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,36): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,36)
<br/><br/>GRASS_INFO_MESSAGE(14046,37): Merge boundaries:
<br/>GRASS_INFO_END(14046,37)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,38): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,38)
<br/><br/>GRASS_INFO_MESSAGE(14046,39): Change dangles to lines:
<br/>GRASS_INFO_END(14046,39)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,40): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,40)
<br/><br/>GRASS_INFO_MESSAGE(14046,41): Remove bridges:
<br/>GRASS_INFO_END(14046,41)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,42): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,42)
<br/><br/>GRASS_INFO_MESSAGE(14046,43): Building topology for vector map ...
<br/>GRASS_INFO_END(14046,43)
<br/><br/>GRASS_INFO_MESSAGE(14046,44): Building areas...
<br/>GRASS_INFO_END(14046,44)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,45): 394 areas built
<br/>GRASS_INFO_END(14046,45)
<br/><br/>GRASS_INFO_MESSAGE(14046,46): 362 isles built
<br/>GRASS_INFO_END(14046,46)
<br/><br/>GRASS_INFO_MESSAGE(14046,47): Attaching islands...
<br/>GRASS_INFO_END(14046,47)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,48): Number of nodes: 1519
<br/>GRASS_INFO_END(14046,48)
<br/><br/>GRASS_INFO_MESSAGE(14046,49): Number of primitives: 1758
<br/>GRASS_INFO_END(14046,49)
<br/><br/>GRASS_INFO_MESSAGE(14046,50): Number of points: 0
<br/>GRASS_INFO_END(14046,50)
<br/><br/>GRASS_INFO_MESSAGE(14046,51): Number of lines: 0
<br/>GRASS_INFO_END(14046,51)
<br/><br/>GRASS_INFO_MESSAGE(14046,52): Number of boundaries: 1758
<br/>GRASS_INFO_END(14046,52)
<br/><br/>GRASS_INFO_MESSAGE(14046,53): Number of centroids: 0
<br/>GRASS_INFO_END(14046,53)
<br/><br/>GRASS_INFO_MESSAGE(14046,54): Number of areas: 394
<br/>GRASS_INFO_END(14046,54)
<br/><br/>GRASS_INFO_MESSAGE(14046,55): Number of isles: 362
<br/>GRASS_INFO_END(14046,55)
<br/><br/>GRASS_INFO_MESSAGE(14046,56): Number of areas without centroid: 394
<br/>GRASS_INFO_END(14046,56)
<br/><br/>GRASS_INFO_MESSAGE(14046,57): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,57)
<br/><br/>GRASS_INFO_MESSAGE(14046,58): Find centroids for layer: AnkerplLamb72
<br/>GRASS_INFO_END(14046,58)
<br/><br/>GRASS_INFO_MESSAGE(14046,59): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,59)
<br/><br/>GRASS_INFO_MESSAGE(14046,60): Write centroids:
<br/>GRASS_INFO_END(14046,60)
<br/><br/><br/>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
<br/>GRASS_INFO_END(14046,61)
<br/><br/>GRASS_INFO_MESSAGE(14046,62): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,62)
<br/><br/>GRASS_INFO_MESSAGE(14046,63): 384 input polygons
<br/>GRASS_INFO_END(14046,63)
<br/><br/>GRASS_INFO_MESSAGE(14046,64): Total area: 2.21065E+09 (394 areas)
<br/>GRASS_INFO_END(14046,64)
<br/><br/>GRASS_INFO_MESSAGE(14046,65): Overlapping area: 1.21E-06 (2 areas)
<br/>GRASS_INFO_END(14046,65)
<br/><br/>GRASS_INFO_MESSAGE(14046,66): Area without category: 69792.2 (8 areas)
<br/>GRASS_INFO_END(14046,66)
<br/><br/>GRASS_INFO_MESSAGE(14046,67): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,67)
<br/><br/>GRASS_INFO_MESSAGE(14046,68): Building topology for vector map ...
<br/>GRASS_INFO_END(14046,68)
<br/><br/>GRASS_INFO_MESSAGE(14046,69): Registering primitives...
<br/>GRASS_INFO_END(14046,69)
<br/><br/>GRASS_INFO_MESSAGE(14046,70): 827 primitives registered
<br/>GRASS_INFO_END(14046,70)
<br/><br/>GRASS_INFO_MESSAGE(14046,71): 82572 vertices registered
<br/>GRASS_INFO_END(14046,71)
<br/><br/>GRASS_INFO_MESSAGE(14046,72): Building areas...
<br/>GRASS_INFO_END(14046,72)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,73): 394 areas built
<br/>GRASS_INFO_END(14046,73)
<br/><br/>GRASS_INFO_MESSAGE(14046,74): 362 isles built
<br/>GRASS_INFO_END(14046,74)
<br/><br/>GRASS_INFO_MESSAGE(14046,75): Attaching islands...
<br/>GRASS_INFO_END(14046,75)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,76): Attaching centroids...
<br/>GRASS_INFO_END(14046,76)
<br/><br/><br/>GRASS_INFO_MESSAGE(14046,77): Number of nodes: 795
<br/>GRASS_INFO_END(14046,77)
<br/><br/>GRASS_INFO_MESSAGE(14046,78): Number of primitives: 827
<br/>GRASS_INFO_END(14046,78)
<br/><br/>GRASS_INFO_MESSAGE(14046,79): Number of points: 0
<br/>GRASS_INFO_END(14046,79)
<br/><br/>GRASS_INFO_MESSAGE(14046,80): Number of lines: 0
<br/>GRASS_INFO_END(14046,80)
<br/><br/>GRASS_INFO_MESSAGE(14046,81): Number of boundaries: 441
<br/>GRASS_INFO_END(14046,81)
<br/><br/>GRASS_INFO_MESSAGE(14046,82): Number of centroids: 386
<br/>GRASS_INFO_END(14046,82)
<br/><br/>GRASS_INFO_MESSAGE(14046,83): Number of areas: 394
<br/>GRASS_INFO_END(14046,83)
<br/><br/>GRASS_INFO_MESSAGE(14046,84): Number of isles: 362
<br/>GRASS_INFO_END(14046,84)
<br/><br/>GRASS_INFO_MESSAGE(14046,85): Number of areas without centroid: 8
<br/>GRASS_INFO_END(14046,85)
<br/><br/>GRASS_INFO_MESSAGE(14046,86): -----------------------------------------------------
<br/>GRASS_INFO_END(14046,86)
<br/><br/>GRASS_INFO_WARNING(14046,87): Errors were encountered during the import
<br/>GRASS_INFO_END(14046,87)
<br/><br/>GRASS_INFO_MESSAGE(14046,88): Try to import again, snapping with at least 1e-10: 'snap=1e-10'
<br/>GRASS_INFO_END(14046,88)
<br/><br/>GRASS_INFO_ERROR(14050,1): Column not found in table
<br/>GRASS_INFO_END(14050,1)
<br/><br/>GRASS_INFO_ERROR(14052,1): Unable to open vector map on level 2. Try to rebuild vector topology by v.build.
<br/>GRASS_INFO_END(14052,1)
<br/>Closing monitors ...
<br/>/Applications/QGIS.app/Contents/MacOS/grass/etc/Init.sh: line 1051: d.mon: command not found
<br/>Cleaning up temporary files ...
<br/>Batch job '/Volumes/data/Users/nikh/.qgis2//processing/grass_batch_job.sh' (defined in GRASS_BATCH_JOB variable) was executed.
<br/>Goodbye from GRASS GIS
<br/>Cleaning up temporary files ...
<br/>Starting GRASS ...
<br/>Executing '/Volumes/data/Users/nikh/.qgis2//processing/grass_batch_job.sh' ...
<br/>Welcome to GRASS 6.4.4 (2014)
<br/><br/>GRASS_INFO_ERROR(14115,1): Unable to open vector map on level 2. Try to rebuild vector topology by v.build.
<br/>GRASS_INFO_END(14115,1)
<br/>Closing monitors ...
<br/>/Applications/QGIS.app/Contents/MacOS/grass/etc/Init.sh: line 1051: d.mon: command not found
<br/>Cleaning up temporary files ...
<br/>Batch job '/Volumes/data/Users/nikh/.qgis2//processing/grass_batch_job.sh' (defined in GRASS_BATCH_JOB variable) was executed.
<br/>Goodbye from GRASS GIS
<br/>Converting outputs
<br/>Loading resulting layers
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