[GRASS5] Re: National British Grid

[David D Gray]

Markus Neteler wrote:

> Hi,
> 
> I have a question if we want to extend the Transverse Mercator
> definition mode (g.setproj etc.) by false northing?
> It seem that the UK needs the x_0 to be defined:
> 


Do you mean y_0?

It is x_0 : +400000
       y_0 : -100000

for BNG. So yes that would be handy.

David


> http://www.geocities.com/mapref/prj/uk/uk_osbg36.html
> 
> Also strange local map projections as found in Bolzano, Italy,
> need false northing for Transverse Mercator.
> 
> If there are no objections, I would add it to
> src/libes/gis/geo_init.c 
> 
> Markus
> 
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