To Nicolas,
You need to provide some more specific information about what you are trying
to do for us to help you. You will want to start by reading:
http://docs.codehaus.org/display/GEOTDOC/07+Referencing
Most likely you will be making use of the CRS utility class. Usually when
transforming points (or anything) you will be using a math transform. To
create the math transform, you can specify the source coordinate reference
system (CRS) and the target CRS. For example, if transforming some
stereographic points to lat/long I would create a source projected CRS
consisting of a stereographic projection (and its parameters) and an
underlying datum (WGS 84 for example). I would then create a target
geographic CRS using a WGS 84 datum. The CRS utility class can then be used
to find a math transform between these two CRSs, and the transform can be
used to convert your points.
As for creating CRS objects, there are many ways. Check out the examples for
creating them from EPSG authority numbers or WKT strings.
Rueben
Note, geotools supports two different stereographic projections. Read the
class descriptions of them (link below to source code) to make sure you are
using the one you need.
http://svn.geotools.org/trunk/modules/library/referencing/src/main/java/org/
geotools/referencing/operation/projection/
-----Original Message-----
From: [email protected]
[mailto:[email protected]]
Sent: Wednesday, December 01, 2010 5:36 AM
To: [email protected]
Subject: [Geotools-gt2-users] Stereographic projection
Hello,
I am using GeoTools 2.7-M3 and I am looking for building stereographic
projection
In order to simply transform points corrdinates.
Unfortunaltely I did not manage to find runnable example in the GeoTools
documentation.
I don't understand which appropriate class to use and how to use it.
Thank you for your help.
Nicolas
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