[Gdal-dev] gdal/ogr/proj and NAD83(CSRS)

[Francesco Paolo Lovergine]

On Fri, Jul 24, 2009 at 09:09:27AM -0700, Matt Wilkie wrote:
> 
> Now back to GDAL and related projects: does the fact that there is no proj4
> NAD83(CSRS) datum parameter mean the X-to-NAD83(CSRS) transformation is not
> happening? 
> 

AFAIK for Canada you can download the freely available NTv2 file from the 
CSRS database and use it with the +nadgrid parameter, if your
application requires high precision fitting. 

-- 
Francesco P. Lovergine