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2
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convert wgs84 coordinate to Google Map coordinate system(EPSG 3785) with geotools and java

Could you please point me out where can I make such a transformation: convert wgs84(EPSG 4326) coordinate to Google Map coordinate system(EPSG 3785), and vise versa. Thank you.
4
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java vividsolutions jts wgs-84 distance to meters

my (java) project uses com.vividsolutions.jts.geom, which provides a distance function. After some googling I finally found that the return value from this function is in central angle degrees, when ...