[Proj] Dutch correction grid

Bart van den Eijnden (OSGIS) bartvde at osgis.nl
Thu Apr 7 04:03:18 EST 2011

Hi Jan,

great! Thanks in advance.

I got the spreadsheet from:


Best regards,

> If someone could give me some pointers to the grid shift format and the
> way it is used in PROJ, I will have a go at producing a grid shift file
> from this spreadsheet. Where did you get it from, Bart?
> Jan
> On 7-4-2011 9:18, Bart van den Eijnden (OSGIS) wrote:
>> Hi,
>> did anybody ever attempt to transform the information from the Dutch
>> correction grid into a format for a datum shift grid file that PROJ.4
>> can
>> read?
>> http://www.rdnap.nl/images/Landelijk%20correctiegrid%20nieuwe%20NAP-publicatie_tcm174-280038.xls
>> Best regards,
>> Bart
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