qgib
commented
10 years ago Author Name: Giovanni Manghi (@gioman)
is tis related with this
17558
and this
16880
?
- category_id was configured as Vectors
- os_version was changed from 7 to
- operating_system was changed from Windows to
- fixed_version_id removed Future Release - High Priority
- status_id was changed from Open to Feedback
- crashes_corrupts_data was changed from 1 to 0
Author Name: Andre Joost (Andre Joost) Original Redmine Issue: 10884
Redmine category:vectors
Attached is a sample of a real island with landuse polygon downloaded from the OSM API, or rather from http://gis.stackexchange.com/questions/104599/osm2pgsql-missing-coordinates. It gets loaded with the OSM plugin, but incomplete using "Add Vector Layer", as shown in the attached screenshot.
The reason is that the nodes are not sorted in the input file. No error message is given in the protocol, some nodes are silently dropped. If I transform the file with ogr2ogr, I get the message "ERROR 1: Non increasing node id. Use OSM_USE_CUSTOM_INDEXING=NO" If I use that as environment variable (not -lco!), it works for ogr2ogr. But QGIS does not offer that method in an easy way.
So I suggest to set this variable internally when using the GDAL osm driver.
According to OSM expert Paul Norman in http://gis.stackexchange.com/questions/103547/how-to-complete-the-roads-output-of-postgis/103599#103599 the OSM API does not guarantee the nodes in an ordered way, so QGIS has to take care on its own about it.