[Proj] Common term for geographic and projected coordinates?

Mikael Rittri Mikael.Rittri at carmenta.com
Wed Feb 4 05:19:12 EST 2009

Gerald wrote: 

> A second issue arose and is the preferred or official designation of lat-lon-h coordinates.  
> Is geographic or geodetic preferred?  I have a tendency to use the two designations 
> interchangeably and mix them freely in emails and documentation.
> Anyone want to nit-pick over this usage.  :-)

Well, h is a hairy issue, with all the different kinds of height.  
But for lat-lon, both "geographic coordinates" and "geodetic coordinates" 
would be correct, as far as I understand it.
   But "geographic coordinates" is probably more common (Google gives 585 000 hits 
for "geographic coordinates", and only 19 700 hits for "geodetic coordinates"). 

Now to my own question: is there a general term that includes both geographic 
coordinates (lat-lon) and projected coordinates (easting-northing), as opposed 
to pixel coordinates?  
   I am trying to document a method that tranforms pixel coordinates to 
either projected or geographic coordinates, depending on whether the 
window is presented with a map projection or just as lat-lon (all right, 
Pseudo Plate Carrée). 
   As you see, I haven't found a snappy way to express it. 
I can only think of "georeferenced coordinates", but is there a better term?

Mikael Rittri
Carmenta AB

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