Hi. If there is any qml file next to the shapefile, can you remove it and then load the shapefile again and see if it works?
Alex A quarta, 4/12/2024, 16:44, Andrew Chapman via QGIS-User < qgis-user@lists.osgeo.org> escreveu: > Hi Andrea > > Sorry for the lack of feedback but I've had to put things on hold for a > while - we've just had a Ukrainian family move in with us and are focused > on getting them settled in. Bureaucracy is much more difficult to sort out > than software! > > I got as far as trying 3.34.13 with no improvement. I've give an update > when I get time to look back it it. > > Kind regards > > Andrew > > -----Original Message----- > From: Andrea Giudiceandrea [mailto:andreaer...@libero.it] > Sent: 04 December 2024 15:00 > To: qgis-user@lists.osgeo.org > Cc: andrew.chap...@donkagen.co.uk > Subject: Re: [Qgis-user] Shapefile symbology no longer working when zoom in > > Hi Andrew, > since I don't see any followups in the thread, I guess you have managed > to find the root cause of the issue and to fix it. > > If so, may you please let me know what was the root cause of the issue > and how did you manage to fix it? > > Best regards. > > Andrea > > Il 28/11/2024 20:39, Andrea Giudiceandrea ha scritto: > > Hi Andrew, > > are you actually using QGIS 3.34.0 or QGIS 3.40.0? If the former, > > firstly I suggest you to use QGIS 3.34.12, instead. What is the GDAL/OGR > > library version used by QGIS on your system? > > > >> Andrew Chapman andrew.chapman at donkagen.co.uk > >> Thu Nov 28 05:38:02 PST 2024 > >> I've tried Vector->Geometry Tools->Check Validity but the problem still > >> exists > > The "Check Validity" processing algorithm [1] doesn't fix any issue. You > > can use it e.g. to export only valid geometries from the affected layer. > > Does the issue occur also with the "Valid output" layer? Does the issue > > occur also if you just export the ESRI Shapefile layer to a new ESRI > > Shapefile layer or to a new GeoPackage layer and use the new layer? > > > > In order to try to actually fix invalid geometries, you can use the "Fix > > geometries" processing algorithm [2]. > > > > > >> Andrew Chapman andrew.chapman at donkagen.co.uk > >> Thu Nov 28 10:21:40 PST 2024 > >> In the layer properties->source tab if I delete the .shx file the > >> option Create Spatial Index is grey’d out. If the .shx file exists > >> the same button is marked Spatial Index Exists and is again grey’d out. > > > > AFAIK the correct way to create or recreate / fix the .shx file is to > > use the "Repair Shapefile" processing algorithm [3]. > > > > Anyway an .shx file doesn't actually contain a spatial index. According > > to "ESRI Shapefile / DBF" page [4], the ESRI Shapefile OGR driver can > > read and write the non-ESRI quadtree spatial index file (.qix ) and can > > read the ESRI spatial index file (.sbn / .sbx). > > > > What are the extensions of all the affected ESRI Shapefile layer's files? > > > > May you please provide the affected ESRI Shapefile layer's files or > > create an issue report on the QGIS GitHub repository [5] providing the > > affected layer? > > > > Best reagards. > > > > Andrea > > > > [1] > > > https://docs.qgis.org/3.34/en/docs/user_manual/processing_algs/qgis/vectorgeometry.html#check-validity > > [2] > > > https://docs.qgis.org/3.34/en/docs/user_manual/processing_algs/qgis/vectorgeometry.html#fix-geometries > > [3] > > > https://docs.qgis.org/3.34/en/docs/user_manual/processing_algs/qgis/vectorgeneral.html#repair-shapefile > > [4] > > > https://gdal.org/en/latest/drivers/vector/shapefile.html#spatial-and-attribute-indexing > > [5] https://github.com/qgis/QGIS/issues > > _______________________________________________ > QGIS-User mailing list > QGIS-User@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >
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