Thanks Jody, I have a link of geotools help doc http://docs.codehaus.org/display/GEOTDOC/How+to+add+new+projections .
Here it is mentioned how a new projection can be added by taking help of proj4. It seems geotools also implements the proj4 projection equations. 2009/6/1 Jody Garnett <[email protected]> > Hi Rhaul: > > I asked the module maintainer of referencing to help point you in a > good direction. I had to do some referencing work a while back and > took some notes here: > - http://docs.codehaus.org/display/GEOTDOC/Referencing+Developers+Guide > > There is a helper class called CRS that can help you build things; but > it mostly delegates to all the factories and authorities and so on > talked about in the link above. Chances are there is going to be a > factory that needs to recognize the words "Polyconic" and produce an > implementation of a projection class of some sort. > > Jody > > > 2009/6/1 Rahul... हम पंछी उन्मुक्त गगन के <[email protected]>: > > Hi Jody/Mauricio, > > Can you tell me what are the files in GEOTOOLS that need to be changed if > I > > want to add a new projection. I am going thru the geotools code for four > > days now but still not able to find a way. I am not able to understand > the > > proper workflow for creating a CRS object from a wkt String > > crsFactory.createFromWKT(String wktString) method;. > > > > 2009/5/28 Mauricio Pazos <[email protected]> > >> > >> On Wednesday 27 May 2009 16:33:53 Jody Garnett wrote: > >> > > Hi Jody, > >> > > I think proj4 library already supports polyconic projections. Can't > we > >> > > use it directly in geotools? > >> > > >> > Not directly; geotools has a pure java solution going on for > >> > referencing. > >> A Java Native Interface (jni) could be developed as a java wrapper over > >> the > >> proj api. This solution provides access to java but it requires to > compile > >> proj for each platform. (Perhaps this good library justifies this > effort). > >> > >> cheers > >> -- > >> Mauricio Pazos > >> www.axios.es > > > > > > > > -- > > Thanks, > > Rahul > > > -- Thanks, Rahul
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