[PROJ] Grid CDN Update and Crowdfunding Request

Lesparre, Jochem Jochem.Lesparre at kadaster.nl
Thu Nov 14 00:22:05 PST 2019


Hi,

A repository would be nice and a new grid format is welcome too. I do not like NTv2 due to its peculiarities:

Correction values, metadata on spacing and even grid bounds are given in arcseconds instead of decimal degrees. Longitude values have inverted sign, thus east of the Greenwich meridian is negative. This affects the correction values and the metadata values for the grid bounds. Also the order in which the correction values are given in the NTv2 correction grid file, is from southeast to northwest and starts with the east-west direction. While the order in which the correction values are listed in the VDatum grid file is better: from southwest to northeast and starts with the west-east direction.

Kind regards, Jochem



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