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[udig-devel] Re: [Geotools-devel] Bursa Wolf Parameter once again
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> A note to Jesse, I would prefer it if udig showed a warning dialog (or
> something easier to see than a logged message) to tell users that you
> are not preforming any datum shifts and that this may be a bad thing.
> That way they will not wonder as much why their roads are 200 m from
> where they expect them to be.
>
> Rueben
>
I agree rueben, although nothing as annoying as a dialog. Each layer
has various decorations one being a warning. if you click on the layer
a message appears in the status line explaining what the warning or
error is about. The getPositionalAccuracy should be able to provide
enough information to set that warning.
> On Mon, 2005-25-04 at 21:06 +1100, Martin Desruisseaux wrote:
> > What about the following algorithm? Could it work?
> >
> > 1) If the CRS contains an authority element, uses the authority
> > code for loading the full CRS from the database.
> >
> > 2) Otherwise, search a datum or CRS with the same name in the
> > EPSG database. Alias are compared. If a match is found, returns
> > the full CRS or datum.
> >
> > 3) Otherwise, if and only if the datum name is "unknow", be lenient
> > on datum shift (just log a warning instead of throwing an exception).
> >
> > 3) Otherwise (if the datum name is not "unknow"), throws the usual
> > exception.
> >
> >
> > Martin.
> >
> >
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