[Proj] How to use +towgs84

Frank Warmerdam warmerdam at pobox.com
Thu Mar 5 16:06:29 EST 2009

Aaron Friesen wrote:
> Just to clarify, however, if I am taking for example UTM NAD83 to latlong
> NAD83 without a datum shift, I do not need +towgs84 specified.  Correct?


That is correct.

And, even if you did, as long as the shifts match no datum shifting
work will be done.

Best regards,

I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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