rhatc Posted January 19, 2004 Report Share Posted January 19, 2004 All, Given the amount of work that's been done with FSUIPC interfacing to MSFlightSim this forum seemed a logical place to hunt for answers. Apologies to all if this is considered off topic: I need to know if it's possible to obtain cartesian grid coordinates of the ownship's present lat/lon position, either through interrogation of MSFlightSim somehow, or via conversion of the available lat/lon through whatever map conversion MSFlightSim uses. The available data documented in the latest FSUIPC software is extensive, but doesn't seem to contain the X/Y position (I'm guessing there's a good reason for this). The exact algorithm for the lat/lon->x/y conversion seems to be some kind of MS secret, as I've looked on the web for it at length and found very little. The most informative blurb indicated that the conversion is a derivative of Lambert Conformal Conic mapped onto some other scaled coordinate system. The reasons I need this would take a while to explain and just cloud the issue, but in a nutshell involve driving an external symbol generator for a helmet-mounted display, which has its own set of problems that I'll deal with when the time comes. Thanks, Rob Link to comment Share on other sites More sharing options...
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