Le vendredi 19 janvier 2007 à 15:25 +0100, Jan Jezek a écrit :
> I'm developing simple web application focused on reference system
> transformations (see http://gist.fsv.cvut.cz:8080/webref/ ). For CRS
> transformation I'm using something like this:
Sound interresting :)
> 1- It is very often that the OperationNotFoundException: Bursa wolf
> parameters required' is thrown. Would you mind if I commit (on trunk
> wkt-plugin) these Bursa Wolf parameters for few systems that we are using
> (here in Czech rep.)? Is it also possible to ignore this and use zero shifts
> when this occurs?
It would be possible to commit them on trunk, but the epsg-wkt plugin
will be completly deleted when a epsg-ext will be ready. It will be
replaced by epsg-hsql + epsg-ext.
It is also possible to use zero shifts when no Bursa Wolf parameters is
available, using:
CRS.findMathTransform(sourceCRS, targetCRS, true);
> 2- There is a difference between the epsg-wkt and epsg-hsql – When I
> call EPSG 2065 CRS – wkt plugins finds CRS with Krovak projection (that
> is OK), but when using hsql plugin I'm getting
> org.opengis.referencing.NoSuchIdentifierException: No transform for
> classification "Krovak Oblique Conic Conformal". So do I have to add this
> alias for Krovak projection into the referencing module, or is it problem in
> hsql-plugin?
We should add the alias by copying and editing the line 355 in file
Krovak.java, thanks for spotting that. I wonder if the current name at
line 355 is a typo, or if both names ("Krovak Oblique Conformal Conic"
and "Krovak Oblique Conic Conformal") are in use... Feel free to commit
whatever fix is appropriate (edit the current name or add an alias -
maybe adding an alias is safer) :).
Martin
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