[MetaCRS] cs2cs - ellps=WGS84 or datum=WGS84?

[Richard Greenwood]

In your first case you have not explicitly defined a datum, so no datum
transformation was applied. cs2cs does to assume +towgs84=0,0,0. You need
to explicitly specify a datum in both the source and destination corrdinate
system definitions either with +datum= or by using an EPSG code.

Rich


On Mon, Aug 26, 2013 at 2:32 AM, Svetlozar Kostadinov <sevarbg at gmail.com>wrote:

> Hi guys,
>
> Maybe my question is stupid but which one of these transforms is correct
> and
> which is wrong? The results are different. I thought in the first case it
> should imply "+towgs84=0,0,0".
> Using version 4.8.0.
>
> <http://osgeo-org.1560.x6.nabble.com/file/n5074257/cs2cs_results.png>
>
>
>
>
>
> --
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-- 
Richard Greenwood
richard.greenwood at gmail.com
www.greenwoodmap.com
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