Thanks Martin, guess I saved you some trouble then. What kind of performance metrics you would like to see?
The project was setup last night: http://sourceforge.net/projects/jts4gwt/source code is available though SVN and the tracker has already tickets which I will clear in my own spare time Regards On Mon, Feb 9, 2009 at 2:44 PM, Martin Davis <[email protected]>wrote: > Excellent work, Alexandre. > Funnily enough, a colleague of mine suggested doing this exact experiment > just last week. Can't beat that for turnaround time... 8^) > > I think your idea of creating a new SourceForge project is excellent. Post > to this list if you need technical assistance. > > I look forward to seeing some performance metrics coming out.... > > Martin > > Alexandre Pretyman wrote: > >> Hello all. >> >> I spent a few hours this weekend porting JTS 1.10 to GWT. For those who >> don't know GWT (Google Web Toolkit), it is a web programming framework >> released by Google in which you develop in Java and it compiles and >> generates the corresponding JavaScript code. It manages to do so by >> emulating a good part of the Java Runtime Environment. However not all, for >> example, since web browsers have no file access, I had to strip out the >> classes which did file IO, because such classes are not emulated and I had >> to re-implement some of the code in the classes to make it compatible with >> GWT. >> >> This effort was made because after a post in the GWT group, people started >> showing interest in using JTS with google maps, although while I was porting >> it, I noticed that not all can be ported with a one to one relationship, for >> example, JTS Polygons can have holes in them, while Google Maps Polygons >> (apparantly) can't. >> >> Here is an example project I setup that does the buffer operation on the >> client (web browser) and sends it to a server through a RPC call, which >> merely clones it, and returns it, just to test Serialization in GWT : >> http://www.4shared.com/file/85146364/98e14118/jts4gwt.html it is 20 megs >> because it has all required libraries to run included - sorry, windows only >> for now, if you run other platform, you can try downloading GWT for your >> platform and swapping the libraries. >> To run the example you have to import it in eclipse, click the down arrow >> beside the Debug button, choose Debug Configurations... and in the following >> dialog, choose JTS4GWT under Java Application on tree view on the left and >> click Debug. It might take a little while to start because it must compile >> all Java sources into JavaScript when it starts debugging, then 2 windows >> will open, one being the window of the web browser, with a google map and a >> button beneath it to test the buffer function on the client side. >> >> With Martin Davis approval (and everyone else involved in making JTS) I >> would setup a jts4gwt project in SourceForge and continue the port (there is >> still work to do), also, with the project in SourceForge, whoever needs a >> function which is not implemented yet in the GWT version, can implement it >> and contribute. >> >> Google Maps is not the only option in mapping for GWT, there is a binding >> for OpenLayers as well, so I think one could use JTS geometries with >> OpenLayers too. >> >> Regards, >> Alexandre Pretyman >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> jts-devel mailing list >> [email protected] >> http://lists.refractions.net/mailman/listinfo/jts-devel >> >> > > -- > Martin Davis > Senior Technical Architect > Refractions Research, Inc. > (250) 383-3022 > > _______________________________________________ > jts-devel mailing list > [email protected] > http://lists.refractions.net/mailman/listinfo/jts-devel >
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