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QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS)
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In Qgis 3.34.4 / 3.38.3 vector layer saved as KML does not allow deleting of polygon features. #58780

Open beng-tang opened 1 week ago

beng-tang commented 1 week ago

What is the bug or the crash?

In Qgis 3.34.4 / 3.38.3 vector layer saved as KML does not allow deleting of polygon features. When a polygon feature is selected, the dustbin icon is greyed out. Pressing the delete key results in an error message saying Provider does not support deletion.

Steps to reproduce the issue

  1. Open Qgis 3.34.4 / 3.38.3

  2. Create a new scratch layer using the icon in the toolbar to do so. My layer settings are shown in the image below. kmlbug1

  3. Draw some polygons using the icon in the toolbar to open the draw polygon function.

  4. Save the layer as a KML file. kmlbug3

  5. Select one of the polygons you drew in the layer you just saved as a KML file while the layer is still in edit mode.

  6. Try to delete it by pressing Del. kmlbug5

Versions

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">

QGIS version | 3.38.3-Grenoble | QGIS code revision | 37f9e6efeec -- | -- | -- | -- Qt version | 5.15.13 Python version | 3.12.3 GDAL/OGR version | 3.8.4 PROJ version | 9.4.0 EPSG Registry database version | v11.004 (2024-02-24) GEOS version | 3.12.1-CAPI-1.18.1 SQLite version | 3.45.1 PostgreSQL client version | 16.4 (Ubuntu 16.4-0ubuntu0.24.04.2) SpatiaLite version | 5.1.0 QWT version | 6.1.4 QScintilla2 version | 2.14.1 OS version | Linux Mint 22   |   |   |   Active Python plugins Group_and_Sort_Layers | 1.2 DigitizingTools | 1.5.2 MetaSearch | 0.3.6 db_manager | 0.1.20 grassprovider | 2.12.99 processing | 2.12.99 QGIS version 3.38.3-Grenoble QGIS code revision [37f9e6efeec](https://github.com/qgis/QGIS/commit/37f9e6efeec) Qt version 5.15.13 Python version 3.12.3 GDAL/OGR version 3.8.4 PROJ version 9.4.0 EPSG Registry database version v11.004 (2024-02-24) GEOS version 3.12.1-CAPI-1.18.1 SQLite version 3.45.1 PostgreSQL client version 16.4 (Ubuntu 16.4-0ubuntu0.24.04.2) SpatiaLite version 5.1.0 QWT version 6.1.4 QScintilla2 version 2.14.1 OS version Linux Mint 22 Active Python plugins Group_and_Sort_Layers 1.2 DigitizingTools 1.5.2 MetaSearch 0.3.6 db_manager 0.1.20 grassprovider 2.12.99 processing 2.12.99 ### Supported QGIS version - [X] I'm running a supported QGIS version according to [the roadmap](https://www.qgis.org/en/site/getinvolved/development/roadmap.html#release-schedule). ### New profile - [X] I tried with a new [QGIS profile](https://docs.qgis.org/latest/en/docs/user_manual/introduction/qgis_configuration.html#working-with-user-profiles) ### Additional context This happens in Qgis 3.34.4 (the Linux Mint repository version) and 3.38.3, running in Linux Mint 22
agiudiceandrea commented 1 week ago

Not sure if it is an actual missing capability of the GDAL/OGR LIBKML driver or if it is a bug in the QGIS OGR provider.

rouault commented 1 week ago

Not sure if it is an actual missing capability of the GDAL/OGR LIBKML driver

It was indeed lacking. Queue for GDAL 3.10 in https://github.com/OSGeo/gdal/pull/10840