Bug report #4995
Empty KML file products 'not a valid or recognized data source'
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | - | ||
| Affected QGIS version: | master | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | invalid |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 14776 |
Description
The attached KML code validates at http://kmlvalidator.com/. Clearly the file does not contain any geometries but a user probably doesn't know this. In Google Earth the file is added correctly (albeit without any points etc.).
History
#1
Updated by Oliver Snowden about 12 years ago
Empty KML file produces 'not a valid or recognized data source'
#2
Updated by Giovanni Manghi about 12 years ago
- Status changed from Open to Feedback
can you read/translate the same kml file directly using the OGR library?
#3
Updated by Oliver Snowden about 12 years ago
It appears that we cannot access this file from ogr2ogr:
$ ogr2ogr -f "KML" -s_srs "EPSG:4326" empty_test.kml -t_srs "EPSG:4326" empty.kml
ERROR 4: No layers in KML file: empty.kml.
FAILURE:
Unable to open datasource `empty.kml' with the following drivers.
-> ESRI Shapefile
-> MapInfo File
...
Whereas a file with data in returns a result such as:
$ ogr2ogr -f "KML" -s_srs "EPSG:4326" empty_test.kml -t_srs "EPSG:4326" test.kml
Warning 1: Layer name 'Layer #0' adjusted to 'Layer__0' for XML validity.
#4
Updated by Giovanni Manghi about 12 years ago
- Status changed from Feedback to Closed
- Resolution set to invalid
Hi,
then is a OGR issue, not a QGIS one.
#5
Updated by Oliver Snowden about 12 years ago
Thanks, I take you point. Obviously it would be nice if there was a mechanism to push this upstream.
Agreed that this particular issue is very minor. End users, unfortunately, view these problems as issues with QGIS and is quite damaging to their impression of the software. Whilst changes are just a commit away, the sorts of end users I come across would only be able to provide relatively small monetary donations. Perhaps this could be food for thought in the future as I see you have bounties on other issues.
#6
Updated by Giovanni Manghi about 12 years ago
Oliver Snowden wrote:
Thanks, I take you point. Obviously it would be nice if there was a mechanism to push this upstream.
there is, the GDAL/OGR bug tracker
Agreed that this particular issue is very minor. End users, unfortunately, view these problems as issues with QGIS and is quite damaging to their impression of the software. Whilst changes are just a commit away, the sorts of end users I come across would only be able to provide relatively small monetary donations. Perhaps this could be food for thought in the future as I see you have bounties on other issues.
You are right, but in this particular case I think (I may be wrong) that there is not much to do if not report the issue upstream, check if eventually is fixed in a recent release of gdal like the 1.9 (or trunk) and/or push/support the fixing of such bug.
#7
Updated by Alexander Bruy about 12 years ago
Confirmed with GDAL 1.9.0. Submitted to GDAL bugtracker http://trac.osgeo.org/gdal/ticket/4511