java transform projection EPSG:900913 to EPSG:4326

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in the openlayers we can simple transform EPSG:900913 to EPSG:4326 I’m look for a java lib can do that. here I found this, Jerry Huxtable’s delightful Globe Applet on the page you cited is indeed written in Java, as seen in the download. The class contains a method named fromPROJ4Specification(), which returns a You can use the EPSG:900913 parameters specified on the OpenLayers site to create the desired projection. Geotools is probably the best library to use for this. Taking a look at their CRS tutorial, it looks trivial to transform from one coordinate system to another using: Proj4J is a Java library to transform point coordinates from one geographic coordinate system to another, including datum transformations. The core of this library is a port of the PROJ.4 C library. Source.

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