Contents
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!
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.
Can a MapInfo file be imported into QGIS?
An entire MapInfo native project file can be imported directly into QGIS in a single operation – but if it is done in this way, all the individual layers in the MapInfo file will be combined into a single layer in QGIS, with no colour distinction, and they cannot be separated again. This is obviously undesirable.
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.
How to use MapInfo to generate a shift?
On import, MapInfo will reproject the coordinates to their BNG position, which generates the shift. You should be able to confirm this by examining the Coordsys line of the MIF file, which will begin CoordSys Earth Projection 8, 104 (BNG using WGS84).
Where are the coordinates on the MIF file?
You should be able to confirm this by examining the Coordsys line of the MIF file, which will begin CoordSys Earth Projection 8, 104 (BNG using WGS84). If you alter this portion of the line to CoordSys Earth Projection 8, 79 (BNG using OSGB36) the coordinates should appear in the correct location.
How to convert coordinates on datamine discover-GIS?
In order to convert coordinates, we will need an editable table with objects. For example, the following rockchip table has objects and the current projection is UTM WGS84 Zone 48S. Here is the data browser for the rockchip table above. As you can see the table has Orig_East and Orig_North columns.