[Proj] OSGB36

[Roger Oberholtzer]

But no one knows of an implementation of this calculation that runs on
Linux? For money? Odd. There is only a Windows DLL (GridInQuest) to do
this. The docs they provide for others are, to me, incomplete at best.

On Sat, 2006-01-14 at 11:17 +0200, Martin Vermeer wrote:
> On Fri, Jan 13, 2006 at 11:28:10AM -0400, John Smart wrote:
>  
> > Could be nice if Proj would support this grid shift file, but what is 
> > really needed (IMHO) is some standardization on such file formats so that a 
> > plethora of different formats would not be needed. Ntv2 is something of a 
> > standard but relates to lat/long differences not projection grid. 
> 
> I am afraid that train has left... Finland, e.g., is using affine
> (bilinear) interpolation within triangles of a Delaunay triangulation.
> I would think that PROJ4 would need a plug-in architecture with a well
> defined API, into which different "grid transformers" can be plugged by
> users.
> 
> - Martin
> 
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