Re: [Geotools-devel] Cassini-Soldner projection

2008-04-04 Thread Mauro Bartolomeoli
I did some investingation on the math and it seems correct to me (there was a little typo in the forward conversion, so I have just updated the patch attached to the jira issue). > > The problem is not in the latitude of origin, but in the lack of the > TOWGS84 parameter. The projection library w

Re: [Geotools-devel] Cassini-Soldner projection

2008-04-04 Thread Andrea Aime
Mauro Bartolomeoli ha scritto: > > > Andrea Aime wrote: >> Mauro Bartolomeoli ha scritto: >>> We are working on an Italy Cadastre importer, and we are thinking to >>> use udig to view the produced data, so we are going to need a CRS to >>> attach to Cassini-Soldner projected data. >>> It's not

Re: [Geotools-devel] Cassini-Soldner projection

2008-04-04 Thread Mauro Bartolomeoli
Andrea Aime wrote: > Mauro Bartolomeoli ha scritto: >> We are working on an Italy Cadastre importer, and we are thinking to >> use udig to view the produced data, so we are going to need a CRS to >> attach to Cassini-Soldner projected data. >> It's not widely tested and not very accurate (the e

Re: [Geotools-devel] Cassini-Soldner projection

2008-04-03 Thread Andrea Aime
Mauro Bartolomeoli ha scritto: > We are working on an Italy Cadastre importer, and we are thinking to use > udig to view the produced data, so we are going to need a CRS to attach > to Cassini-Soldner projected data. > It's not widely tested and not very accurate (the error is in the order > of

Re: [Geotools-devel] Cassini-Soldner projection

2008-04-03 Thread Mauro Bartolomeoli
We are working on an Italy Cadastre importer, and we are thinking to use udig to view the produced data, so we are going to need a CRS to attach to Cassini-Soldner projected data. It's not widely tested and not very accurate (the error is in the order of meters, compared to commercial software w

Re: [Geotools-devel] Cassini-Soldner projection

2008-04-03 Thread Martin Desruisseaux
Andrea Aime a écrit : > Hey, thanks a lot. Out of curiosity, how comes you had this class? > Already using it at work for some project? That is, can we expect > the class to be a little "field tested"? In this spirit, something that would be very usefull would be a test script similar to this one

Re: [Geotools-devel] Cassini-Soldner projection

2008-04-03 Thread Andrea Aime
Mauro Bartolomeoli ha scritto: > Ok, done. Hey, thanks a lot. Out of curiosity, how comes you had this class? Already using it at work for some project? That is, can we expect the class to be a little "field tested"? In Italy Cassini-Soldner was (or still is?) used by the national cadastre, I'm w

Re: [Geotools-devel] Cassini-Soldner projection

2008-04-03 Thread Mauro Bartolomeoli
Ok, done. Andrea Aime wrote: > Mauro Bartolomeoli ha scritto: >> If you're interested, I can attach a patch to the Jira issue which >> implements the projection. Maybe it needs to be refined, but it could >> be a good starting point for some other volunteer :-) > > Yep, sounds like a good idea t

Re: [Geotools-devel] Cassini-Soldner projection

2008-04-03 Thread Andrea Aime
Mauro Bartolomeoli ha scritto: > If you're interested, I can attach a patch to the Jira issue which > implements the projection. Maybe it needs to be refined, but it could be > a good starting point for some other volunteer :-) Yep, sounds like a good idea to me :) Cheers Andrea ---

[Geotools-devel] Cassini-Soldner projection

2008-04-03 Thread Mauro Bartolomeoli
If you're interested, I can attach a patch to the Jira issue which implements the projection. Maybe it needs to be refined, but it could be a good starting point for some other volunteer :-) >Support Cassini Solder projection >- > > Key: GEOT-1757