private void UpdateAltitudeAGL(FlightData flightData, F4SharedMem.FlightData fromFalcon, uint lod = 2)
{
try
{
float terrainHeight = _terrainDB.CalculateTerrainHeight(fromFalcon.x, fromFalcon.y, lod);
float agl = -fromFalcon.z - terrainHeight;
//reset AGL altitude to zero if we're on the ground
if (
((fromFalcon.lightBits & (int)LightBits.ONGROUND) == (int)LightBits.ONGROUND)
||
(
((fromFalcon.lightBits3 & (int)LightBits3.OnGround) == (int)LightBits3.OnGround)
)
)
{
agl = 0;
}
if (agl < 0)
{
agl = 0;
}
flightData.AltitudeAboveGroundLevelInDecimalFeet = agl;
}
catch (Exception e)
{
Log.Debug(e.Message, e);
flightData.AltitudeAboveGroundLevelInDecimalFeet =
flightData.TrueAltitudeAboveMeanSeaLevelInDecimalFeet;
}
}
public float ComputeRadarAltitude(FlightData flightData, TerrainDB terrainDB, uint lod = 2)
{
var terrainHeight = terrainDB?.CalculateTerrainHeight(flightData.x, flightData.y, lod) ?? 0;
var ralt = -flightData.z - terrainHeight;
//reset AGL altitude to zero if we're on the ground
if (WeightOnWheels(flightData) || OnGround(flightData))
{
ralt = 0;
}
if (ralt < 0)
{
ralt = 0;
}
return(ralt);
}