Contents
How does QGIS connect to the OSM server?
QGIS integrates OpenStreetMap import as a core functionality. To connect to the OSM server and download data, open the menu Vector ‣ Openstreetmap ‣ Load data. You can skip this step if you already obtained an.osm XML file using JOSM, Overpass API or any other source.
How to import a shapefile to PostGIS with ogr2ogr?
As you discovered by trial and error, there were few nagging issues you needed to fix, the last of which was resolved using ogr2ogr’s -nlt GEOMETRY * argument.
Can a QGIS file contain positional information?
Such data files can also contain positional information in two main forms: QGIS allows you to load a delimited text file as a layer or ordinal table. But first check that the file meets the following requirements:
How to download OpenStreetMap data in QGIS vector?
You can also download it from qgis Vector > OpenStreetMap > Download OSM Data menu, but sometimes it does not give result. I would recommend using overpass turbo. Vector > OpenStreetMap > Import Topology from XML, this as you said will produce a spatialite database with non-geometry tables.
How is the result of QGIS projected into WGS 84?
With the result back in QGIS: Final result projected into WGS 84 / World Mercator projection (EPSG:3395), which really shows the distortion caused by the British National Grid (EPSG:27700):
How to define the coordinate reference system in QGIS?
If you load a shapefile with a .prj file and QGIS is not able to read the coordinate reference system from that file, you will need to define the proper projection manually within the General tab of the Layer Properties dialog of the layer by clicking the [Specify…] button.
How to load ArcInfo binary coverage in QGIS?
To load an ArcInfo Binary Coverage, click on the Add Vector Layer toolbar button or press Ctrl+Shift+V to open the Add Vector Layer dialog. Select Directory as Source type. Change the file type filter Files of type to ‘Arc/Info Binary Coverage’. Navigate to the directory that contains the coverage file, and select it.
What are the supported data formats for QGIS?
Supported Data Formats ¶ QGIS uses the OGR library to read and write vector data formats, including ESRI shapefiles, MapInfo and MicroStation file formats, AutoCAD DXF, PostGIS, SpatiaLite, Oracle Spatial and MSSQL Spatial databases, and many more. GRASS vector and PostgreSQL support is supplied by native QGIS data provider plugins.