Bug report #10098
Zooming results in parts of features disappearing when spatial indexes SBN/SBX from ESRI are present
|Affected QGIS version:||2.6.0||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||end of life|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||18566|
1. Add a layer: http://gis-lab.info/forum/download/file.php?id=8744
2. Zoom in once
QGIS Win7, 32bit, 2e6927f (today nightly)
It seems like there is no such problem under Ubuntu.
#2 Updated by Maxim Dubinin about 6 years ago
figured it out.
New QGIS is built agains GDAL 1.10 which now takes into account spatial indexes SBN/SBX from ESRI tribe. Removing those fixes everything.
Still, I think we need to do something about it, either GDAL is incorrectly reading those indices and QGIS should ignore them or something else is going on.
#3 Updated by Eric Brelsford over 5 years ago
Also seeing this, in QGIS version 2.6 on Ubuntu 14.10. Deleting SBN and SBX fixed it. I see it with all of these files: http://www.nyc.gov/html/dcp/html/bytes/dwn_pluto_mappluto.shtml#mappluto
If I save the layer as a new shapefile in QGIS and open it, it works fine. Presumably because it doesn't create the SBN or SBX files.
#4 Updated by Giovanni Manghi over 5 years ago
- Operating System deleted (
- Affected QGIS version changed from 2.2.0 to 2.6.0
- OS version deleted (
- Subject changed from Zooming results in parts of features disappearing to Zooming results in parts of features disappearing when spatial indexes SBN/SBX from ESRI are present
- Status changed from Open to Feedback
this should be closed because seems a gdal issue not a qgis one.
#7 Updated by Andy Harfoot about 5 years ago
- Status changed from Closed to Reopened
Just adding another observation that may be a particular subset of a wider issue with GDAL's support for SBN / SBX indexes. The GDAL support is read only, so whilst the indexes are used without problems in QGIS in a dataset that is unmodified from the point of export from ArcGIS, as soon as edits are made that alter the order or number of features in the dataset, the ESRI spatial index will not be updated and therefore become corrupt, causing features to disappear when the spatial index is consulted. Building a QIX index fixes this, as does deleting the SBN / SBX files.
This isn't a GDAL issue, GDAL is working as intended, instead QGIS is making incorrect assumptions about GDAL's capabilities.
Tested on Win 7 x64 QGIS 2.8.2 x64 Standalone and 2.10 x64 OSGeo4W
#11 Updated by Giovanni Manghi over 1 year ago
- Status changed from Reopened to Closed
- Resolution set to end of life
End of life notice: QGIS 2.18 LTR