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wiyean
(Stranger )
05/20/05 02:15 AM
How to convert geotiff from Cassini to WGS884 ? Report this article as Inappropriate to us !!!Login to Reply

Anyone can help ? how can we do a conversion in order to convert raster from cassini to wgs84 ?

Tq



scrabblehack
(Stranger )
05/23/05 07:07 AM
Re: How to convert geotiff from Cassini to WGS884 ? new [re: wiyean]Report this article as Inappropriate to us !!!Login to Reply

I'm not sure this question makes any sense. Cassini is a projection. WGS84 is a datum.





scrabblehack
(Stranger )
05/23/05 08:05 AM
Re: How to convert geotiff from Cassini to WGS884 ? new [re: wiyean]Report this article as Inappropriate to us !!!Login to Reply

I'm new to this forum, and I tried responding a few minutes ago. I don't see my response though.

I was pointing out that Cassini is a projection, whereas WGS84 is a datum.

Perhaps you meant geographic WGS84? Unfortunately to really do it right you would have to know which datum your projection is in.

If you're working in Arc/Info, you would want a projection file something like this;

INPUT
PROJECTION CASSINI
UNITS METERS
DATUM NAD27
PARAMETERS
OUTPUT
PROJECTION GEOGRAPHIC
UNTS DD
DATUM WGS84
PARAMETERS
END

It won't work as is; you would have to specify parameters for your Cassini projection, including the correct datum.







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