Hi All! It seems, there is error in heading_indicator.cxx, OSG around month ago line 84 : === dt -= dt * (0.25/60); // 360 deg/day === But, IMHO, it's should be
=== double current_lat = getDoubleValue(/* here latitude property */) dt -= dt * (0.25/60) * sin( current_lat ); // time-based precession on this latitude === There is not time-based precession in mrg.cxx, so we have not poperly heading gyro at all. Second question. In mrg.cxx, we have movement-induced error - gyro have some deviation by plane orientation changes and accelerations. Can we do property for switch this deviation? Real compass systems have stabilizers for body of reference gyro, and it's eliminate orientation errors ( introduceed by roll and roll rate, etc ). So, if we have ability of controls of orientation errors - we can simulate compass systems more clear, and simulate failures of stabilizers of gyro... -- Wbr, Yurik ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Flightgear-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-devel
