Curtis L. Olson writes:
>
> Jon S Berndt wrote:
>
> > Your example is irrelevant. Fluid pressure cannot be seen. Amps cannot
> > be seen. Neither Amps nor fluid pressure are reported on a zero to one
> > scale. Aerosurfaces can be drawn and seen, and that's not done on a
> > zero to one basis either. Like I said, there are some things that can
> > be done on a zero to one basis, such as landing gear deployment. But,
> > aerosurfaces are reported in degrees, regardless of whatever aircraft
> > it is, it's already "generalized" to its lowest common denominator.
> > Why it should be further "reduced" and then reassembled to the exact
> > same value (one hopes) later on when rendered via SimGear - that's
> > defies description, IMHO.
> >
> > It is true that we can pollute our code (a.k.a. "implement wrappers")
> > to satisfy FlightGear, but why? We know what the control surface
> > limits are. So, what do we do? Pass a normalized value AND the
> > aerosurface limits so they can be reconstructed later? Why not just
> > pass the raw value and be done with it?
> >
> > Code that massages physical parameters to make up for shortcomings in
> > the rendering/animation system doesn't belong in the FDM. If it
> > doesn't belong in SimGear or on the FlightGear side, it belongs in the
> > FGInterface class - but I don't think it even belongs there.
> >
> > I know this sounds "forceful", and I don't mean to step on any toes
> > here, I just feel strongly about this.
>
>
> For what it's worth, I recall there being some sort of substantial
> discussion at the time this was implemented, I just don't recall what
> that discussion consisted of. I tend to support your position John,
> however, let's not act too hastily because a lot of code and animation
> depends on this behavior.
It is realy quite simple
you either have
1) an abstract class with 'Normalized units'
class Control
or
2) a bunch of specalized classes
class Angle_Controller
class Toggle_Controller
class Percentage_Controller
etc .....
Both schemes have advantages
Quick question
Do valves take 1 or 2 full rotations of the handle to fully open ?
Cheers
Norman
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