Peter Ma a écrit :
In this point,I have a little maze.
Can I use Geotools package
"org.geotools.ct" to transform the coordinate???
The org.geotools.ct package is a legacy (deprecated) one. You can use it
if you need interoperability with some other Geotools code which has not
yet been ported to the new referencing framework (espacially the J2D
renderer). Otherwise, if you don't have such constraints, you should
uses the following package instead:
org.geotools.referencing
To be more specific, you should uses GeoAPI interfaces:
org.opengis.referencing
and "org.geotools.referencing" as an implementation (possibly among
others) if those interfaces.
See "Coordinate Transformation Services" in the following page:
http://www.geotools.org/display/GEOTOOLS/Tutorials
Martin.
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