[Gvsig_english] gvsig mobile display coordinates

[Juan Lucas Dominguez Rubio]

Hello, Tom
 
I'm sorry you cannot have the view in EPSG:32610 and see the coordinates in EPSG:4326.
 
As you say, the only exception to that is that the coordinates of waypoints are stored in lat/lon. We do this because the conversion to another projection is usually subject to a small error, o we prefer to store the coordinates exactly as delivered by the GPS.
 
If you wish to see the cordinates in lat/lon you might reproject your ECW image to EPSG:4326 (in this case there's no error in the conversion, by the way). You can do this with FWTools http://fwtools.maptools.org. You only need to type these two commands in the DOS-like window (Windows) or terminal (Linux):
 
gdalwarp -r cubic -s_srs epsg:32610 -t_srs epsg:4326 image32610.ecw image4326.tif
gdal_translate -of ecw image4326.tif image4326.ecw
 
 
The input image being image32610.ecw
the output image being image4326.ecw
 
Then set your view to EPSG:4326 and everything will be in lat/lon
 
 
Regards
Juan Lucas Domínguez Rubio
---
Prodevelop SL, Valencia (España)
Tlf.: 96.351.06.12 -- Fax: 96.351.09.68
http://www.prodevelop.es <http://www.prodevelop.es/> 
---

________________________________

De: gvsig_internacional-bounces at listserv.gva.es en nombre de Tom
Enviado el: lun 25/07/2011 3:03
Para: gvsig_internacional at listserv.gva.es
Asunto: [Gvsig_english] gvsig mobile display coordinates



Hi,
using gvsig mobile 0.3
loaded an ecw map EPSG: 32610
bluetooth gps connected, icon shows on ecw map properly( i.e. displays where I
know I am physically)

BUT, the GPS coordinates display in units that are not the coordinates I want to
see. I want to view lat/long decimal degrees.

How to I configure gvsig mobile to do this.
I thought is was under project applications, but it doesn't work.

 GPS
Display GPS coordinates in real-time
The Display Coordinates tool (1) displays the real-time coordinates of
the GPS position in the toolbar

I don't know how to change it so it displays in lat/long degrees. When I save a
waypoint, it shows the coordinates as lat/long degrees.

I go into Project applications/view tab and there is the EPSG, which I put to
32610(wgs84 utm 10N). But the extents show as meters or something( 529970.91489,
530784.70880: 5032559.6379, 5033468.3745) and I change them to 122.50, etc, but
they change back when restarting the project.

thanks,
Tom

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