On Wed, Dec 23, 2009 at 9:09 AM, Alex Mandel <tech_dev@wildintellect.com>wrote:

> Roger Bivand wrote:
> > On Mon, 21 Dec 2009, Alexandre VILLERS wrote:
> >
> >> Good afternoon,
> >>
> >> I was wondering if the reading and creating of ecw files was planned
> >> for the rgdal library. I suppose it is a bit tricky to include this
> >> function because of the need for the ECW SDK library from ER mapper...
>

Check out http://trac.osgeo.org/ubuntugis/wiki/UserTutorials  on how to
include ECW support under Ubuntu.

Hope this helps,

Rainer

>
> > Correct, we cannot distribute this library from CRAN. If you need this
> > driver, you have to provide it yourself, on Windows using the
> > instructions for the alternative build approach in:
> >
> > file.show(system.file("README.windows", package="rgdal"))
> >
> > You will have to improvise a little, as - for example - building R
> > packages from source is easier now than it was in 2007.
> >
> > Hope this helps,
> >
> > Roger
> >
>
> I believe the ECW dll for GDAL is available in the OSGEO4W package, and
> my understanding of it is that as long as the dll is present on your
> gdal path for the gdal install that rgdal is using it should work.
> http://trac.osgeo.org/osgeo4w/
>
> I can't speak for ECW but I do know for MrSID there's been clarification
> on several occasions that it is ok to distribute the built binary.
>
> Alex
>
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>



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