1. The atmospheric properties of FG are not yet initialized when
JSBSim is initialized.
-> patch is quite basic and there may exist smarter ways to initialize
properly the environment before the FDM.
2. The Euler angles were initialized after the velocities.
3. The glide slope and rate of climb were ignored. Fixes all FDMs (YASim,
UIUC, JSBSim, etc.)
4. Some properties were instructed to re-use their previous value while
they should not.
5. Some bugs existed in JSBSim trim code. -> This bug has already been
fixed in JSBSim but the corresponding patch has not yet been applied to FG.
coordinated with and approved by Andy.
The lattice(x,y) arguments were being "WRAP()'d" but the WRAP() function
didn't make sense. Instead it was forcing the value to zero if it was
greater than the wrap limit. This was creating large areas of constant
values in the perlin noise maps which resulted in a "constant" turbulence
vector over time -- which is just weird.
Andy couldn't see any reason why the values should be wrapped and couldn't
remember any reason why the WRAP() function was set up like it was.
Andy wanted me to make sure and mention that he was INSANE when he wrote that
code (but now he's sane ... err, mostly.)
The internal solver of YASim which computes drag and lift
coefficients now actually uses the values configured in
the XML input file for approach fuel, cruise fuel and cruise
glide angle.
Untieing needs to be done prior to the destruction of the object which
aggregated the TiedPropertyList. So the TiedPropertyLists destructor can't
untie the properties automatically (and it doesn't). So, do some manual
clean-up.
Use shared property pointers instead of path strings, adapt method
names to JSBSim style, catch all property ties, proper error handling
when tieing failed.
Extends and partially reverts commit 287cc74965
Previous fix did not consider properties outside the /fdm/jsbsim branch.
FGPropertyManager now keeps track of all its tied properties - and provides
a method to cleanly untie them again.
Use shared property pointers instead of path strings, adapt method
names to JSBSim style, catch all property ties, proper error handling
when tieing failed.
Extends and partially reverts commit 287cc74965
Previous fix did not consider properties outside the /fdm/jsbsim branch.
FGPropertyManager now keeps track of all its tied properties - and provides
a method to cleanly untie them again.
