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What is the projection EPSG 27700 in QGIS?
I have some data in a PostGIS table with the projection EPSG 27700. If I export this data from QGIS (v1.8) to MapInfo TAB / MIF when I open the data in MapInfo it has a shift on it.
Where does the EPSG coordinate system take place?
Information source: Ordnance Survey of Great Britain. Scope: Large and medium scale topographic mapping and engineering survey. Area of use: United Kingdom (UK) – offshore to boundary of UKCS within 49°46’N to 61°01’N and 7°33’W to 3°33’E; onshore Great Britain (England, Wales and Scotland). Isle of Man onshore. Coordinate system: Cartesian 2D CS.
How to export British National Grid to Esri shape?
A workaround is to export to ESRI Shape (or GML) and then open that in MapInfo, specifying British National Grid as the Coordinate System. Thanks for contributing an answer to Geographic Information Systems Stack Exchange!
What is the area of use for EPSG?
Area of use: United Kingdom (UK) – offshore to boundary of UKCS within 49°46’N to 61°01’N and 7°33’W to 3°33’E; onshore Great Britain (England, Wales and Scotland). Isle of Man onshore. Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N).
How to change the CRS to British National Grid?
In order to change the default CRS for QGIS, choose the Settings > Options menu. Then from the CRS window, change both the Enable Automatic ‘on the fly’ reprojection and CRS for New Layers options to now be British National Grid (EPSG:27700) . Press OK and the change will be applied to your QGIS installation.
Is the British National Grid the other dataset?
If the latter, then is the other dataset also British National Grid, or might there be a coordinate system transform being done on the fly by both MapInfo and QGIS, as this would probably generate different shifts in the data.
How to recreate the behaviour of QGIS 1.7?
I can recreate this behaviour in QGIS 1.7 (which uses GDAL 1.8) – this is a bug, but most probably in GDAL rather than QGIS itself (more investigation required!). A workaround is to export to ESRI Shape (or GML) and then open that in MapInfo, specifying British National Grid as the Coordinate System.