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Zonal Statistics alters zone layer, should create new layer #29504

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qgib opened this issue Mar 28, 2019 · 3 comments
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Zonal Statistics alters zone layer, should create new layer #29504

qgib opened this issue Mar 28, 2019 · 3 comments
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API API improvement only, no visible user interface changes Feature Request

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@qgib
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qgib commented Mar 28, 2019

Author Name: Johannes Kroeger (Johannes Kroeger)
Original Redmine Issue: 21688

Redmine category:processing/qgis

Zonal Statistics tries to write the statistics to the file/layer chosen in "Vector layer containing zones".

I have not tried, but I would assume that this renders the tool unusable with e.g. a read-only WFS source.

Pretty much all other tools, including Zonal Histogram, instead create a new layer or file.

Please make Zonal Statistics not try to alter the zone layer by default, instead use the same mechanism ("[Create temporary layer]" by default) as other tools.
@qgib
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qgib commented Mar 28, 2019

Author Name: Giovanni Manghi (@gioman)

  • category_id was changed from Processing/Core to Processing/QGIS
  • tracker_id was changed from 1 to 2

@qgib qgib added Feature Request Processing Relating to QGIS Processing framework or individual Processing algorithms labels May 25, 2019
@alexbruy
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This should be an analysis library feature request not Processing

@alexbruy alexbruy removed the Processing Relating to QGIS Processing framework or individual Processing algorithms label Jun 22, 2019
@alexbruy alexbruy added the API API improvement only, no visible user interface changes label May 1, 2020
m-kuhn added a commit to m-kuhn/QGIS that referenced this issue Sep 8, 2020
@m-kuhn
[processing] Zonal Statistics create a new output instead of updating…
c20ebcf 
… an existing one

Implements qgis#29504
@m-kuhn m-kuhn mentioned this issue Sep 8, 2020
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@alexbruy
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Fixed in #38650

@alexbruy alexbruy mentioned this issue Nov 30, 2020
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@alexbruy @qgib