I guess the solution will be a combination of both a) support of network socket style gps ala gpsd b) serial support if java serial support is possible
.. ede On 08.06.2010 20:02, Joe Desbonnet wrote: > GPS integration although relatively trivial has always been a problem > for Java apps because the necessary APIs to talk to the hardware > (RS232, USB or Bluetooth) have never been part of the standard Java > distribution. Therefore you always need extra stuff: either the > missing APIs (eg the RXTX open source implementation of the javax.comm > API) or a OS dependent daemon (service) that bridges the data from > hardware to network socket which can be easily read by Java. > > But a few things have changed in the past few years: > > 1. Most GPS receivers sold today are part of a smart phone (that's a > guess -- but I'm pretty sure I'm not far off right :-) > > 2. There is now a standard and readily available (sort of) Java > bluetooth API in the form of Android 2.0+. > > So: you could achieve GPS integration by writing a small Android app > (it's Java, free SDK and easy to learn) which will take location > updates from the built in GPS and and send them via a network socket. > Or, you could use the app in a different mode: to connect to a > separate Bluetooth GPS unit and transmit the data via a network > socket. > > One fly in the ointment: Up to the recent announcement of Android 2.2 > (aka Froyo) tethering a unmodified Android phone to a computer via > WiFi was not easy unless you had an access point. Froyo allows the > phone to become an access point: so you can connect a laptop directly > to the phone. There may be other modes supported (eg adhoc networks > etc.. I haven't looked at the details yet). Unfortunately most phones > are not running Froyo (yet), but should be receiving over-the-air > updates in the next 6 months. > > Joe. > > > > > > > On Tue, Jun 8, 2010 at 4:12 PM, <edgar.sol...@web.de> wrote: >> On 08.06.2010 16:48, Larry Becker wrote: >>> Seems like GPSylon is a large program and you only need the small >>> portion ( gpsinput library?) that communicates with GPS devices, but >>> apparently that library depends on external code. >>> >>> (From the GPSylon web site): "The library that is used to communicate >>> with the gps device can be used independently and is provided as a >>> separate jar file (since version 0.5)". >> >> >> That's the plan, gpsylon is actually a suite of tools (jars). >> >> What's missing is somebody volunteering or paying for the modifications. >> >> ..ede >> >> >>> >>> Larry >>> >>> On Tue, Jun 8, 2010 at 9:19 AM, <edgar.sol...@web.de >>> <mailto:edgar.sol...@web.de>> wrote: >>> >>> >>> the old version is dead, there was an updated version which >>> was supposed >>> to work on various platforms 2 years ago. >>> i think they developed into .. >>> http://www.tegmento.org/gpsylon/ >>> >>> >>> Last update to GPSylon was more than three years ago. Is it reliable >>> enough to use or should everything be made again with some other >>> library? >>> Gpsd http://gpsd.berlios.de/ seems to be rather commonly used >>> but the >>> developers say that it will never support Windows which is not >>> so great >>> news. >>> >>> >>> gpsd is not java based. I'd rather use as less platform dependent >>> code as possible. >>> But as GPS data is generally a plain text serial protocol one could >>> of course use data from a gpsd source and let gpsylon interpret it. >>> There seems to be a windows alternative as well >>> http://code.google.com/p/gpsd-4-win/ . I dimly remember tat gpsylon >>> supported this type of input. >>> >>> gpsylon worked reliably then .. question is if the binary serial >>> libraries work with windows 7 / vista ... they are readymade >>> compiled for XP/NT .. it looks like it is possible to compile >>> mingw32 version of the underlying http://rxtx.qbang.org/ rxtx library. >>> >>> Hence even if the serial input does not work, gpsylon still has >>> value in interpreting the gps data. >>> >>> .. ede >>> >>> >> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. 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