[Gvsig_english] How georeferencing geographic coordinates in gvSIG

[Agustin Diez Castillo]

Mumrik,
Are you using decimal degrees? You need to use them, here is how to  
transform your original coordinates:
- Go to gps visualizer [1]
-degrees+min/60+sec/3600 [2]
This is my own translation of an original post in Spanish by Daniel  
Orellana.
First: you should crerta two new field in your table to store decimal  
degrees.
Second: You calculate the decimal degrees with the above formula  
where min are minutes and sec seconds.
Third: You make a new event layer with your fresh coordinates  
(decimal degress)
Four: You cross your fingers and try with the image you want  
georeference
Obviously, the formula works outsid of gvSIG as well.

Good Luck and reports results if any.
Agustin
[1] http://www.gpsvisualizer.com/calculators#coordinates
[2] http://runas.cap.gva.es/pipermail/gvsig_usuarios/2008-February.txt

On Feb 16, 2008, at 2:32 PM, Mumrik wrote:

> I am currently trying to georeference a map in gvSIG. Doing it in UTM
> (as shown in the documentation and tutorials) worked fine, but using
> geographic coordinates (for Germany) endet up in the map stretched and
> tilted or even worse. I think it might just be a question of
> formatting the numbers (with or without dots or so) when entering them
> in the input box. I am using the EPSG-Code 4326.
>
> Does it also make a difference in which order the 4 (or only 3??)
> basing points are entered?
>
> Could anyone help me with a working example of how to enter the
> coordinates?
>
> asks
> Mumrik
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