[GRASSLIST:1547] Re: new location

Markus Neteler neteler at geog.uni-hannover.de
Fri Mar 2 04:07:07 EST 2001


Hi all,

we have added false easting/false northing to Lambert Conformal Conic
projection in GRASS 5 (CVS). In next version it will appear.

Gaetan, you may contact me personally if you need it immediately.

Thanks to Morten Hulden for his quick fix,

 Markus Neteler


On Thu, Mar 01, 2001 at 10:48:06AM +0100, Gaetan GUYODO wrote:
> Hello,
> I'm creating a Location/Mapset corresponding to my data, in the "Lambert II
> etendu" projection.
> I found some explanations about this projection, but I don't understand every
> question I have to answer to create this Location/Mapset.
> When I open grass, I choose "new location", with a new name.
> ...
> Projection name : Lambert Conformal Conic (lcc)
> 
> Ellipsoid name : clark80
> 
> Specify a datum for this location ? No  (I didn't understand this point...)
> 
>  Enter Central Parallel [lat_0] (23N) : 46°48'00''
> 
>  Enter First Standard Parallel [lat_1] (33N) : 45°53'56.108''
> 
>  Enter Second Standard Parallel [lat_2] (45N) : 47°41'45.652''
> 
>    Enter Central Meridian [lon_0] (96W) : 2°20'14.025''
> 
> Enter plural form of units [meters]:  meters are good
> 
> But in Lambert II etendu specifications, there are two others data :
> 	false easting (meters) : 600000
> 	false northing (meters) : 2200000
> Where can I specify these data ? I didn't find...
> 
> 
> After, I have to define the default region : I'm not sure to understand. the
> default region correspond to the region which can be used for maps ? or it is
> only the default region displaied by the monitor... or another default region.
> 
> If someone can help me, thanks...
> 
> Gaetan
> 




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