Wow, that's perfect, exactly what I was hoping for !!!

I made a small change in your proposed configuration to map the
target-lat/lon/elevation path to /sim/input/click so the camera
automatically stays fixed on anything you click on in the view.  I
discovered that you really want to have the aircraft on autopilot, or
someone else flying with a proper view.

The capabilities and reconfigurability of FlightGear is amazing.   (We
aren't perfect, but it doesn't hurt to pat ourselves on the back every once
in a while.) :-)

Thanks again!

Curt.


On Wed, 2009-07-22 at 14:16 -0500, Curtis Olson wrote:
> > I would like to create a view that simulators a gyro stabilized
> > pan/tilt camera looking at a specific fixed point on the ground (i.e.
> > news helicopter or uav type application.)  I see we have a "lookat"
> > mode in our code, but this appears to be hardwired to either look at
> > our own aircraft as it flies from a fixed view point, or look in a
> > specific direction.
>

On Wed, Jul 22, 2009 at 8:34 PM, Ron Jensen wrote:

>  <view n="101">
>    <name>News Camera</name>
>    <type>lookat</type>
>    <internal type="bool">true</internal>
>    <config>
>      <eye-lat-deg-path>/position/latitude-deg</eye-lat-deg-path>
>      <eye-lon-deg-path>/position/longitude-deg</eye-lon-deg-path>
>      <eye-alt-ft-path>/position/altitude-ft</eye-alt-ft-path>
>      <eye-heading-deg-path>/orientation/heading-deg</eye-heading-deg-path>
>
>      <target-lat-deg-path>/sim/tower/latitude-deg</target-lat-deg-path>
>      <target-lon-deg-path>/sim/tower/longitude-deg</target-lon-deg-path>
>      <target-alt-ft-path>/sim/tower/altitude-ft</target-alt-ft-path>
> <!--
>      <target-heading-deg-path></target-heading-deg-path>
>      <target-pitch-deg-path></target-pitch-deg-path>
>      <target-roll-deg-path></target-roll-deg-path>
> -->
>    </config>
>  </view>
>
>
>
>
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-- 
Curtis Olson: http://baron.flightgear.org/~curt/
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