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Author SHA1 Message Date
curt
00002357b3 Roy Vegard Ovesen:
I've done som more work on the gps instrument.

- You can now input airport-, nav- or fix-ID to select a waypoint.
- You have to specify either "airport", "nav" or "fix" in the waypoint-type
  property (some fixes and navs have identical IDs).
- Formatted the time to waypoint output.
- Cleaned up and changed some propery names (wp-heading -> wp-bearing).

- I've also added a name member to the FGNav class so that the gps instrument
  can get the name of the nav.
- Changed the airport name parsing in simple.cxx.
2004-03-15 19:23:39 +00:00
curt
ea39c09192 Make sure delta_u_n and u_n are always explicitely initialized. 2004-03-15 19:15:40 +00:00
curt
a5f9927727 Roy Vegard Ovesen:
I've done some changes to xmlauto.cxx.

Only calculate the derivate filtering if derivate time Td is greater than
zero. This means that one can set Td=0.0 in the xml file to completely remove
the derivate action. (Setting Td to zero in the current version would lead to
a division by zero and crash.)

Setting the integrator time Ti to zero doesn't make sense, right! I've
modified so that setting Ti to zero results in the integral action being
completely removed.
2004-03-15 19:09:44 +00:00
daveluff
1347ca930f Work around for the AI-traffic due to precision issues generated by the radio frequency dialog 2004-03-15 11:14:03 +00:00
ehofman
c37874e140 Fix an issue where math.h doesn't define sqrt in namespace std (at least on MSVC) and remove DOS line-endings. 2004-03-15 09:24:57 +00:00
curt
d77e8c75a1 - Filter the fuel switch position to allow it to slowly transition through
null space without killing the engine (hardware specific problem.)
- NMEA output: I'm slightly confused but it appears that a real GPS outputs
  traditional unix line endings on it's gps strings, we were outputing DOS
  CR/LF which was causing some confusion.  This changes the line ending
  convention to match that of a real gps.
- Calculate true ground track and speed for NMEA.
2004-03-14 23:04:32 +00:00
curt
5c0ae1c6f6 Resolve a meters vs. feet interpretation problem with nav station elevations. 2004-03-14 23:01:44 +00:00
curt
2caa017a79 Change nav->get_elev() to nav->get_elev_ft() to convey the actual units
explicitely.  This value has always been feet, but there were a couple places
in the code that assumed this elevation was meters.  The result was that you
could park directly over the top of the Black Forest VOR (112.50) NE of KCOS
and get a dme reading of 2.5 or so.  This problem is now resolved.
2004-03-14 23:01:09 +00:00
curt
78155104e8 I found a meter/feet conversion problem with DME elevations. These changes
should resolve the problem.
2004-03-14 22:58:58 +00:00
ehofman
f63d336ebc Sync. with JSBSim CVS. 2004-03-14 14:57:07 +00:00
ehofman
a97b69056e Fix a string clearance issue with certain compilers. 2004-03-12 17:33:30 +00:00
daveluff
ead3dd3d5c Don't clear the user to land following downwind report if there is other traffic on final to land first - instruct the user to follow the other traffic and clear the user to land once the other traffic is clear of the runway instead. 2004-03-12 15:59:14 +00:00
daveluff
9e968eaec7 Fix a situation where the AI aircraft sometimes wouldn't be visible when they should 2004-03-12 15:58:00 +00:00
daveluff
7a044b3faa Start adding a better framework for ATC-initiated communication. There should be no user-visible change from this commit 2004-03-10 16:01:17 +00:00
daveluff
1e3a4f312b Add an option for the user to inform the tower (s)he is going around after downwind or final has been reported 2004-03-09 16:20:55 +00:00
ehofman
6a08c79fcc David Culp:
I added some things to the AI stuff to improve the AIThermal processing.
Before, all the thermals were processed in order, and the last one overwrote
the prior one.  Now, only the data from the nearest thermal is kept.  This
way a tile can be populated with many thermals, and (as long as they have the
same diameter) the one nearest the airplane correctly takes effect.  This
will make us ready for the next step, "auto-thermaling", where FlightGear's
tile manager can cover a tile with thermals, and set the thermal strength
based on land-use type.

I moved the enumerated object_type to the base class.  When an AI object is
created it now sets the _otype variable in the base class.  This lets the AI
manager find out what kind of AI object it is dealing with, using the base
pointer.  I also added a function isa() to the base class, so the manager can
process objects differently based on their type.

The AI manager now sends AIThermal processing to a different function, where
only the data from the nearest thermal is kept.  After the manager processes
all the AI objects, then the results from the nearest thermal are applied to
wind-from-down.
2004-03-07 12:08:46 +00:00
ehofman
536d135856 MSVC .NET 2003 fix 2004-03-07 09:37:49 +00:00
david
620832274a Increase friction at idle, so that the engine idles more slowly.
The friction factor should be tunable through a runtime parameter;
right now, it is optimized for the PA-28-161.
2004-03-07 01:26:30 +00:00
daveluff
82ec72da84 Start making the AI traffic robust to not getting a tower pointer from ATC. Eventually this should also lead to being able to generate AI traffic at uncontrolled airports 2004-03-06 14:44:38 +00:00
daveluff
4c84d11862 Use the airport elevation instead of the actual ground elevation when out of visible range of the user. This should reduce thrashing / pollution of the tile cache. 2004-03-05 16:24:04 +00:00
daveluff
f8ef6d16b4 Fix a crash that sometimes occurred when reporting downwind in the circuit 2004-03-05 12:34:08 +00:00
daveluff
406c7d7042 Fix a problem where track would not get initialised to a sensible value before getting altered 2004-03-04 10:11:29 +00:00
ehofman
250ccf7bff Put the Thermal and Storm support code back in 2004-03-03 20:33:08 +00:00
ehofman
ed4509d8b5 Put the AIStorm and AIThermal classes back in 2004-03-03 20:26:06 +00:00
daveluff
9773ba5542 Move the mechanics of turning out of the derived classes into AIPlane. The user-visible effect is that AI planes no longer suddenly change direction without turning properly. 2004-03-02 10:43:16 +00:00
daveluff
cb8db7725a Don't cast string to c_str before passing to functions that take string, and remove an inadvertant push onto the airport_atc_map of data that already exists on it 2004-03-02 10:37:38 +00:00
daveluff
e4859c1fbf Return the closest match instead of the first in-range match when searching by frequency 2004-03-01 13:49:47 +00:00
curt
d8000569ea Investigating some wierd behavior where the threaded metar fetcher would
occasionally cause a large number of valid stations to be flagged as invalid.
This *seemed* like a "race condition" type problem because there were some
assumptions in the communication between the main process and the threaded
loader which if they broke down could lead to this problem.

In the process of removing this ambiguity, I restructured the threaded
(and non-threaded) metar fetching code a bit.  Some of the top level logic
(which Erik politely left untouched) didn't make nearly as much sense in the
context of a threaded metar loader and could have contributed to some of the
wierdness I was seeing.
2004-02-28 19:52:17 +00:00
ehofman
feb9f16410 Revert the previous patch, wind-heading-from is part of a range, not a direction itself. 2004-02-28 12:08:01 +00:00
ehofman
2c6c83ce9b Fix a misunderstanding between wind-from and wind-heading 2004-02-28 11:03:59 +00:00
curt
e7bdd8deeb Add a function to do plots with any channel being X and any other channel
being "Y".
2004-02-27 23:28:23 +00:00
david
d535c7c6b1 Reverted recent changes -- the dependencies are badly (and
unnecessarily) tangled.
2004-02-27 16:48:27 +00:00
david
721e9f469d Add the aircraft model, model manager, view manager, and scenery
manager to the standard subsystem collection manager, rather than
using extra code to initialize and update them.
2004-02-27 15:16:23 +00:00
ehofman
85a1e5cc98 David Culp:
Here's a new batch of AI code which includes a working radar instrument.

I put the radar calculations into the existing AIAircraft class.  It was
easier that way, and it can always be migrated out later if we have to.
Every tenth sim cycle the AIManager makes a copy of the current user state
information.  When the AIAircraft updates it uses this information to
calculate the radar numbers.  It calculates:

1) bearing from user to target
2) range to target in nautical miles
3) "horizontal offset" to target.  This is the angle from the nose to the
   target, in degrees, from -180 to 180.  This will be useful later for a HUD.
4) elevation, in degrees (vertical angle from user's position to target
   position)
5) vertical offset, in degrees (this is elevation corrected for user's pitch)
6) rdot (range rate in knots, note:  not working yet, so I commented it out)

and three items used by the radar instrument to place the "blip"

7) y_shift, in nautical miles
8) x_shift, in nautical miles
9) rotation, in degrees

The radar instrument uses the above three items, and applies a scale factor to
the x-shift and y-shift in order to match the instrument's scale.  Changing
the display scale can be done entirely in the XML code for the instrument.
Right now it's set up only to display a 40 mile scale.

The radar is an AWACS view, which is not very realistic, but it is useful and
demonstrates the technology.  With just a little more work I can get a HUD
marker.  All I need to do there is make a bank angle adjustment to the
current values.
2004-02-27 10:20:17 +00:00
david
ef12314346 Load submodels before animations, so that we can animate submodels.
Allow submodels to be named when they are loaded.
2004-02-27 03:31:12 +00:00
curt
8d44c8cecc For weather fetching from the noaa.gov site: If the closest station hasn't
changed, wait 15 minutes before grabbing it's weather data again.
2004-02-26 18:21:11 +00:00
ehofman
dad0c2de10 Add an option to define the proxy settings (used by metar data fetching only at this time). Usage: --proxy=user:pwd@host:port 2004-02-26 12:57:38 +00:00
ehofman
061f1688c3 Add support for a proxy server when retreiving metar data. 2004-02-26 10:23:48 +00:00
ehofman
bca8c29795 Add threading to metar data fetching where available. 2004-02-25 15:31:01 +00:00
curt
4fca15fa1d Avoid a possible segfault crash if a nonexistant airport is specified. 2004-02-25 02:16:36 +00:00
ehofman
4b424a29e7 David Culp:
I went through the AI code to put the "bank" node back into the config file,
so the models can fly circles.  While I was in there I made some other
changes.

*)  Moved the initialization of roll, tgt-roll, pitch ... etc, from init()
into the constructor, so it wouldn't over-write the config settings.

*)  Changed the altitude getter to remove the meters-to-feet conversion.  The
altitude is kept internally in feet.  Only the scenery code needs meters.

*)  Added "bank" item for config file (for type=aircraft).  Left bank is
negative.

*)  Added "rudder" item for config file (for type=ship).  Left rudder is
negative.  Internally this is stored in the "roll" variable, but the ship
model doesn't roll.  It uses the "roll" variable for turning though.


The following puts a tanker at 3000 feet, 6 nm northwest of KSFO.  On takeoff,
the tanker is visible over the hanger building at one-o'clock.

   <entry>
    <type>aircraft</type>
    <class>jet_transport</class>
    <path>Aircraft/737/Models/boeing733.xml</path>
    <speed-KTAS type="double">320.0</speed-KTAS>
    <altitude-ft type="double">3000.0</altitude-ft>
    <longitude type="double">-122.455</longitude>
    <latitude type="double">37.69667</latitude>
    <heading type="double">200.0</heading>
    <bank type="double">-15.0</bank>
   </entry>
2004-02-23 20:55:07 +00:00
curt
31e563c2a4 A first stab at limiting the noaa.gov query to only valid stations. There
are many recognized limitations and inefficiencies with this entire approach,
however, it's a quick and dirty way to get something working, where before
we didn't.
2004-02-23 18:25:29 +00:00
ehofman
86345b961e Add network libraries for Solaris 2004-02-23 14:29:42 +00:00
ehofman
fa344f7667 Add the network libraries for Solaris 2004-02-23 14:22:53 +00:00
curt
7f3a870b03 Fix a type mismatch error introduced with the latest changes to
src/Airports/simple.[ch]xx
2004-02-23 11:42:49 +00:00
ehofman
69d67d7478 only airports with four-letter codes can have metar stations 2004-02-23 09:49:02 +00:00
ehofman
86e94fd08e Frederic Bouvier:
The last change from Curt to Airports/simple.[ch]xx made
GUI/AirportList.cxx not compilable because of the loss of
a '*' in getAirport.

Also : fabs is not defined under MSVC unless <math.h> is
included.
2004-02-23 09:48:10 +00:00
ehofman
5822e0b0e8 Move fgSetupWind() from options.cxx to util.cxx 2004-02-23 09:37:28 +00:00
ehofman
3143e44faa Use floor() insstead of floorf() 2004-02-23 09:03:41 +00:00
curt
11e0b75bc3 Oops, call *re*init() so that the weather conditions (not just clouds)
are actually updated.
2004-02-23 02:22:49 +00:00