[MetaCRS] Proj4js MGRS conversion Geodectic

[Toph]

Thanks Charles for your help.

If I put '42EWC5522406275' into 
Proj4js.Point.fromMGR("42EWC5522406275");  I get 
I get point.x.toPrecision(7) = 16.41449 and point.x.toPrecision(7) = 69.59450 and point.y.toPrecision(7) = 33.49457

I was expecting:
point.x.toPrecision(7) =  69.90387 and point.y.toPrecision(7) = -56.78416 like you said and like it is in GeoTrans.

I guess Proj4js is confused between 42E and 42S? 

 

I think I'll try your GeographicLib JavaScript interface next.

Thanks,
Chris



>________________________________
> From: Charles Karney <charles.karney at sri.com>
>To: 'Toph' <toph_vt-web at yahoo.com>; "metacrs at lists.osgeo.org" <metacrs at lists.osgeo.org> 
>Cc: Charles Karney <charles.karney at sri.com> 
>Sent: Tuesday, February 5, 2013 4:09 PM
>Subject: RE: [MetaCRS] Proj4js MGRS conversion Geodectic
> 
>
> 
>GeoTrans 3.2 and GeographicLib (GeoConvert –n) give
>33UVP0500444998 -> 13.72028E 48.25107N
>33UXP0500444998 -> 16.41449E 48.24949N
>42SWC5522406275 -> 69.59450E 33.49457N
>42EWC5522406275 -> 69.90386E 56.78416S
> 
>so it looks as though some of your problems are switched letters
>in the MGRS codes.
>  --Charles
>From:metacrs-bounces at lists.osgeo.org [mailto:metacrs-bounces at lists.osgeo.org] On Behalf Of Toph
>Sent: Tuesday, February 05, 2013 3:25 PM
>To: metacrs at lists.osgeo.org
>Subject: [MetaCRS] Proj4js MGRS conversion Geodectic
> 
>I'm trying to convert MGRS to WGS 84 Geodetic Output Coordinate System.  The example in the test\mgrs.js works like I expect.  Some MGRS don't provide the values I expect.  Am I missing something?  
>
>Thanks Chris
>========================================================================
>
>If I use Geotrans, for MGRS "33UVP0500444998", I get 16.41449 for Lon and 48.24949 Lat.  
>
>If I use Proj4js.Point.fromMGRS("33UVP0500444998"), I get point.x.toPrecision(7) = 16.41449 and point.y.toPrecision(7) = 48.24949
> 
>=========================================================================
>If I use Geotrans, for MGRS "42SWC5522406275", I get  for Lon 69.59450 and  Lat. 33.49458  
>
>If I use Proj4js.Point.fromMGRS("42SWC5522406275"), I get point.x.toPrecision(7) =  69.90387 and point.y.toPrecision(7) = -56.78416
>
>
>
>
>
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