[Qgis-user] how to display polygons from qgis in google earth?

[Giovanni Manghi]

Hi,

your shape is missing the .prj file, so depending on how your QGIS
settings (options-> CRS) are configured, this shape will be loaded with
the right or -more probably- wrong reference system.

If you don't have changed anything in options->CRS then the shape will
be given the WGS84 CRS, that is wrong.

You can fix this in several ways:

-) manually giving your CRS (EPSG 27700) to the vector in its properties
-) changing how QGIS behave in options->CRS
-) fixing the shape by creating the .prj file. You can do it by using
the tool vector->data management->define current projection

After that it all shows at the right place...


cheers

-- Giovanni --


On Tue, 2011-05-10 at 13:31 +0100, M.E.Dodd wrote:
> Is this any good? Its in osgb 1936 coordinate system and should be 3 fields just north of Cambridge, uk.
> 
> -----Original Message-----
> From: Giovanni Manghi [mailto:giovanni.manghi at gmail.com] 
> Sent: 10 May 2011 13:28
> To: M.E.Dodd
> Cc: 'sokolic at worldonline.co.za'; qgis-user at lists.osgeo.org
> Subject: RE: [Qgis-user] how to display polygons from qgis in google earth?
> 
> Hi,
> 
> On Tue, 2011-05-10 at 10:55 +0100, M.E.Dodd wrote:
> > No this does not work, it simply gives all positions as lat 1 degree 
> > long 1 degree i.e. plots all the data in the middle of the ocean.
> 
> the suggestion ("save as...") should work also for lines and polygons (and it works indeed). 
> 
> > However if you convert from ordnance survey to lat long outside qgis 
> > then bring the data back into qgis telling it that its wgs84 then 
> > create the kml then it does work.  This is fine for points, but I 
> > can’t see how to do it for polygons or lines.
> 
> can you link to some data do make a local test?
> 
> cheers
> 
> -- Giovanni --
> 
> 
> 
> 
>