[gdal-dev] How to use my own nad2bin shift grid file?

[Rahkonen Jukka]

Hi,
 
I have prepared a shift grid file which I hope to correct local
distortions of the Finnish KKJ projection. I made it by calculating
correction values and feeding them into ascii file in .lla format. That
ascii file I used as input for nad2bin program. Now I have a .bin file
produced by nad2bin (named as KKJ.bin), but no idea about how to use it.
My aim is to utilise this KKJ.bin file when converting from epsg-codes
2391, 2392, 2393 and 2394 to other systems.  I would be happy if
somebody could give me an example about how to do it for example in
making re-projection from epsg:2393 to epsg:4326 with ogr2ogr.
 
Regards,
 
-Jukka Rahkonen-
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