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The [http://en.wikipedia.org/wiki/Head-up_display '''Head-up display'''] (HUD) is an important instrument in modern, mostly military, cockpits. FlightGear provides a XML-based system to relatively easily create HUDs for aircrafts such as the [[F-14]] and [[F-16]]. | The [http://en.wikipedia.org/wiki/Head-up_display '''Head-up display'''] (HUD) is an important instrument in modern, mostly military, cockpits. FlightGear provides a XML-based system to relatively easily create HUDs for aircrafts such as the [[F-14]] and [[F-16]]. | ||
However, this article's focus is on FlightGear's default head-up displays. Those are available for any craft which does not include its own set. Have a look at [[#Further Information]] if you're planning to create a HUD. | However, this article's focus is on FlightGear's default head-up displays. Those are available for any craft which does not include its own set. Have a look at [[#Further Information|Further Information]] if you're planning to create a HUD. | ||
Activate the HUD with the '''<tt>[h]</tt>'''-key. Pressing it repeatedly moves through the configured colours and turns it off again. To change the brightness, press '''<tt>[shift]</tt>+<tt>[h]</tt>'''. Press '''<tt>[shift]</tt>+<tt>[i]</tt>''' to go through the available HUD's. Press '''[i]''' to switch back to the first one at any time. Have in mind that some aircraft do assign one or more of those keys differently and therefore one or more function/s is/are missing on them. | Activate the HUD with the '''<tt>[h]</tt>'''-key. Pressing it repeatedly moves through the configured colours and turns it off again. To change the brightness, press '''<tt>[shift]</tt>+<tt>[h]</tt>'''. Press '''<tt>[shift]</tt>+<tt>[i]</tt>''' to go through the available HUD's. Press '''[i]''' to switch back to the first one at any time. Have in mind that some aircraft do assign one or more of those keys differently and therefore one or more function/s is/are missing on them. | ||
Some of the head-up display's options can be altered in the menu: <tt>View</tt> --> <tt>Adjust HUD Properties</tt> | Some of the head-up display's options can be altered in the menu: <tt>View</tt> --> <tt>Adjust HUD [[Property_tree|Properties]]</tt> | ||
[[File:HUD_default_overview.png|thumb|420px|Huds/default.xml]] | [[File:HUD_default_overview.png|thumb|420px|Huds/default.xml]] | ||
[[File:HUD_minimal_overview.png|thumb|420px|Huds/minimal.xml]] | [[File:HUD_minimal_overview.png|thumb|420px|Huds/minimal.xml]] | ||
[[File:HUD_NTPS_overview.png|thumb|420px|Huds/ | [[File:HUD_NTPS_overview.png|thumb|420px|Huds/NTPS.xml]] | ||
== Features == | == Features == | ||
=== Control inputs === | === Control inputs === | ||
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[[File:HUD_default_autopilot.jpg|thumb|420px|HUD autopilot]] | [[File:HUD_default_autopilot.jpg|thumb|420px|HUD autopilot]] | ||
=== Autopilot === | === [[Autopilot]] === | ||
If the autopilot is active the HUD displays its settings. For each active function (heading, altitude and speed) a box will appear below the gyrocompass containing information on its mode and, if existent, the associated value. | If the autopilot is active the HUD displays its settings. For each active function (heading, altitude and speed) a box will appear below the gyrocompass containing information on its mode and, if existent, the associated value. | ||
; Heading control | ; Heading control | ||
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: Their values: <code>/autopilot/settings/target-speed-kt</code> and <code>/autopilot/settings/target-speed-mach</code> | : Their values: <code>/autopilot/settings/target-speed-kt</code> and <code>/autopilot/settings/target-speed-mach</code> | ||
[[File:HUD_default_gps.jpg|thumb|420px|HUD GPS]] | |||
=== [[GPS]] === | |||
The upper left hand corner shows the most important information on the actual state of the GPS. Namely these are (line by line): | |||
: the mode the GPS operates in and the active waypoint's identifier. | |||
: the distance "D" (in nautical miles, nm) and the calculated time to this waypoint "TTW". | |||
: the bearing "BRG" to the active waypoint and the course deviation "XTR" based on the leg from the previous waypoint. | |||
: the current speed relative to the ground "GS". | |||
<!-- | |||
===<name>Runway</name>=== | |||
/sim/presets/airport-id (/sim/tower/airport-id?!) | |||
--> | |||
== Further Information == | == Further Information == | ||
The setup of the default HUD is defined at <tt>[[$FG_ROOT]]/Huds/default.xml</tt>. | If you consider to create your own HUD have a look at [[Canvas HUD]] first. | ||
The setup of the default HUD is defined at <tt>[[$FG_ROOT]]/Huds/[http://mapserver.flightgear.org/git/?p=fgdata;a=blob_plain;f=Huds/default.xml;hb=HEAD default.xml]</tt>. | |||
The basic settings regarding to any HUD are set in <tt>$FG_ROOT/[http://mapserver.flightgear.org/git/?p=fgdata;a=blob_plain;f=preferences.xml;hb=HEAD preferences.xml]</tt>. Search the file for the <tt><hud></tt>-tag and you will find a list of properties. | |||
Documentation can be found at [http://mapserver.flightgear.org/git/?p=fgdata;a=blob_plain;f=Docs/README.hud;hb=HEAD | Documentation can be found at <tt>$FG_ROOT/Docs/[http://mapserver.flightgear.org/git/?p=fgdata;a=blob_plain;f=Docs/README.hud;hb=HEAD README.hud]</tt>. | ||
HUD's may be replaced or added by changing or adding their | HUD's may be replaced or added by changing or adding their paths to <tt>preferences.xml</tt> or by setting the paths as command line options. To change the order of the existing ones the options would be: <code>--prop:/sim/hud/path[1]=Huds/minimal.xml</code> <code>--prop:/sim/hud/path[2]=Huds/default.xml</code> | ||
== Additional HUDs == | == Additional HUDs == | ||
; HeliHUD | ; HeliHUD | ||
: Designed to fly helicopters in Helicopter View it is also handy for any craft with a not yet finished cockpit. It also contains a minimalistic HUD only showing some | : Designed to fly helicopters in Helicopter View it is also handy for any craft with a not yet finished cockpit. It also contains a minimalistic HUD only showing some navigational information such as compass and GPS. The [http://janodesbois.free.fr/D-HUND/helihud_0.2.tar.bz2 download] contains instructions and specs. | ||
[[Category:FlightGear feature]] | [[Category:FlightGear feature]] | ||
[[Category:Menubar]] | [[Category:Menubar]] |
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