Hi Andreas
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. Andrew From: Andreas Neumann [mailto:andr...@qgis.org] Sent: 28 November 2024 17:15 To: Andrew Chapman Cc: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] Shapefile symbology no longer working when zoom in Hi Andrew, Maybe it is worth a try to recreate the spatial index? Maybe it has defects or is incompatible. Just remove the .shx files and recreate them with QGIS in the layer properties --> Source tab. Maybe it helps, Andreas On Thu, 28 Nov 2024 at 18:05, Andrew Chapman via QGIS-User <qgis-user@lists.osgeo.org> wrote: Hi My first thought has been Scale Dependant Visibility but I confirmed that it was off. However, text displays ok when I zoom in but the symbology lines or points vanish – I don’t think one could do this with SDV without two instances of the same layer and different styling. The suggestion of trying an earlier version of QGIS may be worth investigating. I’m returning to QGIS now because we’ve had very bad flooding (again) but I haven’t been involved for the last five years due to health issues. A wrecked computer and finding that all the backups hadn’t been 100% is rather complicating matters. I’ve found old QGIS setup exe files from 2013 and 2014 which I haven’t tried to run yet as I’m not sure if they would load an earlier version in parallel with my later version. Also, as the problem is associated with shapefiles, are there any suggestions as to how then could be “sanitised”? It seems the problem files are layers that I have created with earlier versions of QGIS while similar aged ones that I’ve downloaded from Ordinance Survey work fine. Andrew From: Karl Magnus Jönsson [mailto:karl-magnus.jons...@kristianstad.se] Sent: 28 November 2024 14:59 To: Richard McDonnell; Andrew Chapman; qgis-user@lists.osgeo.org Subject: Sv: [Qgis-user] Shapefile symbology no longer working when zoom in Hi! Which old version are you migrating from? Could be worth trying some intermediate version of QGIS. Open and save and then go to 3.40. Kind regards Karl-Magnus Jönsson Från: QGIS-User <qgis-user-boun...@lists.osgeo.org> För Richard McDonnell via QGIS-User Skickat: den 28 november 2024 15:07 Till: Andrew Chapman <andrew.chap...@donkagen.co.uk>; qgis-user@lists.osgeo.org Ämne: Re: [Qgis-user] Shapefile symbology no longer working when zoom in Hi Andrew, Sounds like you have set Scale Dependant Visibility, setting a Min or Max Scale in the Symbology or Rendering on the Layer Properties That would be my first port of call anyway. Kind Regard’s, Richard —— Richard McDonnell MSc GIS, FME Certified Professional Flood Risk Management - Data Management —— Oifig na nOibreacha Poiblí Office of Public Works Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36 Jonathan Swift Street, Trim, Co Meath, C15 NX36 —— M +353 87 688 5964 T +353 46 942 2409 https://gov.ie/opw —— To send me files larger than 30MB, please use the link below https://filetransfer.opw.ie/filedrop/richard.mcdonn...@opw.ie Email Disclaimer: https://www.gov.ie/en/organisation-information/439daf-email-disclaimer/ From: QGIS-User <qgis-user-boun...@lists.osgeo.org> On Behalf Of Andrew Chapman via QGIS-User Sent: 28 November 2024 13:38 To: qgis-user@lists.osgeo.org Subject: [Qgis-user] Shapefile symbology no longer working when zoom in I’ve not used QGIS for a number of years and now returned to version 3.34.0. With projects that worked ok with earlier versions I find that some shapefiles now only partially work when I zoom in. Text labels continue to work but sybology markers (point and line) vanish when I zoom to scales below about 1:10000. I’ve tried Vector->Geometry Tools->Check Validity but the problem still exists. Any suggestions? Andrew Chapman _______________________________________________ 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 -- -- Andreas Neumann QGIS.ORG board member (treasurer)
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