No description
5df9811576
I believe.) :-) - The height of the navaid was not being properly converted to meters before being used in our internal calculations. This caused the GS to be placed too high. - I was using the wrong trig function to calculate the current approach angle of the aircraft. The distance to the GS source is the euclidean point to point distance and represents the hypotenuse (not the ground distance) so I need to use asin() rather than atan() to calculate the angle. - I was calculating distance directly to the GS source, rather than taking into consideration that the GS transmitter projects a plane, so I need to take the distance to the line where that plane intersectso the ground. Previously, the way I modeled my distance calculation, the GS transmitter effectively formed a 3 degree cone from the source. The GS transmitter is usually placed a 100 meters or so off the runway edge so the cone model could never bring you in to the touch down point precisely. With these changes, the GS will bring you in precisely to the touchdown point as defined in the default.ils.gz file (it wouldn't before.) The only issue that remains is that it will bring you in to the elevation defined in the ILS database, which doesn't necessarily match the DEM/SRTM terrain at that point. Still on average, this will be a big improvement until we can do a better job of getting the runway end elevations nailed correctly. |
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| docs-mini | ||
| man | ||
| package/mandrake | ||
| scripts | ||
| src | ||
| tests | ||
| utils | ||
| .cvsignore | ||
| acinclude.m4 | ||
| am2dsp.cfg | ||
| AUTHORS | ||
| autogen.sh | ||
| ChangeLog | ||
| configure.ac | ||
| FlightGear.dsp | ||
| FlightGear.dsw | ||
| Makefile.am | ||
| NEWS | ||
| README | ||
| Thanks | ||
Welcome to the FlightGear Flight Simulator project. =================================================== The primary web page for this project is: http://www.flightgear.org For basic installation instructions see the "INSTALL" file. Before you can run FlightGear you will also need to download and install the "base" package which is a collection of textures, sounds, sample scenery, and other data files need by the sim. For additional install help for specific platforms please browse the "docs-mini/" subdirectory. More complete documentation is available from our web page as a separate distribution. Please take a look at the "Thanks" file for a list of people who have contributed to this project. If you have contributed something but don't find your name in this file. Please send a polite reminder to curt@flightgear.org For a summary of changes/additions by version see the "NEWS" file. This project is GPL'd. For complete details on our licensing please see the "COPYING" file. For information on available mailing lists, mailing list archives, and other available source code and documenation, please visit our web site. FlightGear is a product of the collaboration of large international group of volunteers. FlightGear is a work in progress. FlightGear comes with no warrantee. We hope you enjoy FlightGear and/or find it of some value!