a regular function argument for that. Note the "n" in this example:
setlistener("/sim/current-view/view-number", func(n) {
setprop("/sim/hud/visibility", !n.getValue());
}, 1);
- use extra function for resuming normal mode after lookat: dynamic_view.resume()
- add fov (field-of-view) to interface: me.fov_offset
- remove register_headshake and me.headshake; this can still be done via
normal register(). If only headshaking is to be added, while keeping default
plane view, do this:
dynamic_view.register(func {
default_plane();
me.x_offset = ...
me.y_offset = ...
me.z_offset = ...
});
aircraft can plug a custom function. This function can access all internal
variables of the ViewManager class. It can set me.{x,y,z}_offset, and also
add offsets to me.{heading,pitch,roll}_offset. Example:
dynamic_view.register_headshake(func {
me.x_offset = rand() * 0.02; # Parkinson effect
});
The advantage of this implementation is that it doesn't break MMB drag
functionality, and that is can be frozen by mouse movements.
Remember: dynamic_view.lookat(heading, pitch, roll) moves view
smoothly to this direction, while dynamic_view.lookat() moves it back.
This can be used for quick view changes to the panel etc. It's currently
only used in the bo105 (flaps-up binding).
registered with dynamic_view.register() and is called in the main loop,
replacing the default plane/helicopter function. This has access to
all class functions/members and sets me.heading_offset, me.pitch_offset,
and me.roll_offset, which are then used as new view offsets.
The function can also do other things, such as call the lookat() method
to temporarily set heading and pitch. See the bo105 for an example.
While further minor changes are to be expected, the configuration method
seems to be the way to go.
- dynamic_view.nas: use aircraft.lowpass() class
This makes the dynamic view independent of the frame rate. Currently,
each filter instance reads out dt on its own, which is a bit inefficient.
I'll change that to just one read for all instances later (when Nasal
implemented predictable module loading order. :-)
Unfortunately, this is quite jittery on some aircraft, so it uses a slower
lowpass filter. I'd like to fix that, but don't even know what causes it.
Considering /sim/time/delta-realtime-sec didn't help. :-/
entry "View->Toggle Dynamic Cockpit View" entry; state saved to autosave.xml;
there are no configuration parameters yet, but the default values work for
most aircraft; exceptions: ground steering effect of jsbsim aircraft is
jittery; yawing effect on big aircraft is too abrupt. This needs to be
configurable.
Suggestions for improvements are welcome if they are bundled with a
working diff that actually proves the claimed advantages. :-)
