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Processing: r.to.vect
and v.generalize
fail
#21634
Comments
Author Name: Paolo Cavallini (@pcav) Strangely enough, an apparently unrelated module (v.generalize) also creates an empty shapefile. |
Author Name: Paolo Cavallini (@pcav)
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Author Name: Markus Neteler (Markus Neteler) This issue is not clear to me. Can you point me to a simple test case? Eg using test data from here: http://grassbook.org/datasets/datasets-3rd-edition/ |
Author Name: Paolo Cavallini (@pcav) In fact, basin_50k.tif works fine. With the attached file it does not. If I cut a portion of it, it works again.
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Author Name: Paolo Cavallini (@pcav) It does not work with the data provided for the Processing tutorial as well. http://qgis.org/downloads/data/training_manual_exercise_data.zip |
Author Name: Paolo Cavallini (@pcav) Check e.g. v.generalize on the |
Author Name: Markus Neteler (Markus Neteler) Paolo Cavallini wrote:
I have tried, works fine here. Screenshot attached.
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Author Name: Paolo Cavallini (@pcav) Thanks Markus for testing. Unclear what's happening (different GRASS version?). 0..2..4..6..8..10..12..14..16..18..20..22..24..26..28..30..32..34..36..38..40..42..44..46..48..50..52..54..56..58..60..62..64..66..68..70..72..74..76..78..80..82..84..86..88..90..92..94..96..98..100 |
Author Name: Markus Neteler (Markus Neteler) Please post the output of your GRASS GIS version (g.version -g). The "ERRORE: Il tematismo esiste già nell'origine dati OGR ..." looks like leftover file. You could try to set export GRASS_OVERWRITE=1 to override that file. |
Author Name: Paolo Cavallini (@pcav) Thanks. Done, no change. |
Author Name: Giovanni Manghi (@gioman) No issues whatsoever with any of the above datasets. QGIS master, GRASS 7.
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Author Name: Paolo Cavallini (@pcav) OK, got some more info:
ATTENZIONE: Datum non riconosciuto da GRASS e nessun parametro trovato |
Author Name: Giovanni Manghi (@gioman) Paolo Cavallini wrote:
no problems here also with v.buffer. As for the r.to.vect issue, qgis master (processing too), G7, on both Windows and Linux. |
Author Name: Paolo Cavallini (@pcav) It seems a problem with projections (it happened before, probably resurfaced here). |
Author Name: Paolo Cavallini (@pcav) Checked again, I can confirm it on a clean 2.12 install. Steps to reproduce:
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Author Name: Giovanni Manghi (@gioman) I cannot confirm the issue, on a clean 2.12 install on both Linux and Windows. See attached screencast. There are two known issues anyway:
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Author Name: Giovanni Manghi (@gioman) Giovanni Manghi wrote:
tested on several other machines (both Windows and Linux) and no issues (no empty result). |
Author Name: Giovanni Manghi (@gioman) closing for lack of feedback.
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Author Name: Paolo Cavallini (@pcav) Have you tested with the same data? The problem is still present, so it warrants deeper investigation. I'll test with master, please leave it open.
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Author Name: Giovanni Manghi (@gioman) Paolo Cavallini wrote:
I had, on both Linux and Windows, with different QGIS and Processing versions, and no issues whatsoever.
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Author Name: Giovanni Manghi (@gioman) Paolo Cavallini wrote:
anyway if a ticket is in feedback state it is up to the reporter to leave further details and/or do more tests. We have a 15 days reply feedback, and I'm using it to clean a bit the tracker. |
Author Name: Giovanni Manghi (@gioman) Paolo Cavallini wrote:
tested again and again no issues on two different OS on two different computers with different QGIS/Processing releases. Please try again also on other systems to avoid local issues. There are two issues anyway that are not related to the one described in #21634 (comment) please do more tests and leave feedback. |
Author Name: Giovanni Manghi (@gioman) one last test, on qgis master, both modules on grass 6 and 7, on both linux and windows, no issues. If you have data that is problematic (not the attached one or the training manual one, that is ok) and given that is not a GRASS problem, please reopen this ticket. that are two separate issues from the apparent described here (Processing/GRASS modules failing)
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Author Name: Paolo Cavallini (@pcav)
Original Redmine Issue: 13592
Affected QGIS version: master
Redmine category:processing/grass
Assignee: Victor Olaya
r.to.vect input=tmp1444762289725 type=area output=outputb0d6bd9d340c4c829513101f45f91968 --overwrite
v.out.ogr -c -s -e input=outputb0d6bd9d340c4c829513101f45f91968 type=auto output="/tmp/processing/8a519603d75a423fa510b0d2a9e24e48" format=ESRI_Shapefile olayer=output
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