[mapserver-users] How set Ntv2 using Proj7

[Jörg Thomsen (WhereGroup)]

Hello Andrea,

I think you have to use the ntv2 file within the definition of the epsg.
Wether with a direct link in the epsg file of your proj lib or you can
use ist in the mapfile in the projection section.

file epsg:
<31467> +proj=tmerc +lat_0=0 +lon_0=9 +k=1.000000 +x_0=3500000 +y_0=0
+ellps=bessel +datum=potsdam +units=m
+nadgrids=/data/etrs89/BETA2007.gsb +no_defs  <>

Mapfile:

 PROJECTION
   "proj=tmerc"
   "ellp"=bessel"
    ....
   "nadgrids=/data/etrs89/BETA2007.gsb"
 END

Jörg


Am 05.01.21 um 14:26 schrieb Andrea Peri:
> Hi,
> I need to configure the use of a set of NTv2 for the SRS changes when
> mapserver return maps in differences SRS.
> But I dont't find any reference to the use of NTv2 in the Mapserver docs.
> 
> Is availabe in mapserver the choice to configure the use of NTv2 ?
> 
> I'm using the last Proj7
> 
> Thx.
> -- 
> -----------------
> Andrea Peri
> . . . . . . . . .
> qwerty àèìòù
> -----------------
> 
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> 


Viele Grüße,
Jörg Thomsen

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