[Proj] ECEF to UTM - no sure how to do this

Antoine Cottin a.cottin at carbomap.com
Wed Mar 9 12:02:44 EST 2016


Thanks Norman works like a charm.
Regards.
Antoine
-----------------------
Dr Antoine Cottin
Chief Technology Officer
Carbomap Ltd.
Edinburgh Centre for Carbon Innovation
High School Yards
Edinburgh EH1 1LZ
-----------------------
http://www.carbomap.com
http://carbomap.wordpress.com
http://github.com/carbomap
@carbomap
+44 (0)7577 444-046










> On 8 Mar 2016, at 20:30, Norman Vine <nhv at cape.com> wrote:
> 
> Here is some discussion with code todo this using geographic lib
> 
> https://sourceforge.net/p/geographiclib/mailman/message/31830144/ <https://sourceforge.net/p/geographiclib/mailman/message/31830144/>
> 
> http://geographiclib.sourceforge.net/
> 
> 
> On Mar 8, 2016, at 3:18 PM, Antoine Cottin <a.cottin at carbomap.com> wrote:
> 
>> Hello list,
>> 
>> I’m trying to convert some ECEF data to UTM zone 33N (WGS84) in a C++ application. My code is working but the results are not correct as the data are skewed along an axis.
>> 
>> I’ve adapted the example code available on the wiki about pj_transform but wonder if there is anything special to consider in term of coordinates order for the ECEF input as the X,Y,Z might not be obvious? and I believe it’s the reason for the skewed results...
>> 
>> Any pointer welcome.
>> Best regards.
>> Antoine
>> -----------------------
>> Dr Antoine Cottin
>> Chief Technology Officer
>> Carbomap Ltd.
>> Edinburgh Centre for Carbon Innovation
>> High School Yards
>> Edinburgh EH1 1LZ
>> -----------------------
>> http://www.carbomap.com <http://www.carbomap.com/>
>> http://carbomap.wordpress.com <http://carbomap.wordpress.com/>
>> http://github.com/carbomap <http://github.com/carbomap>
>> @carbomap
>> +44 (0)7577 444-046
> 
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