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Introduce a simplistic spin-down when insufficient suction is

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This commit is contained in:
david 2002-09-24 16:37:28 +00:00
parent 90e64f9430
commit 6a8371c44c
1 changed files with 12 additions and 8 deletions
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20
src/Instrumentation/attitude_indicator.cxx
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@ -49,26 +49,30 @@ AttitudeIndicator::update (double dt)
// First, calculate the bogo-spin from 0 to 1.
// All numbers are made up.
_spin -= 0.01 * dt; // spin decays every 1% every second.
_spin -= 0.005 * dt; // spin decays every 0.5% every second.
// spin increases up to 10% every second
// spin increases up to 25% every second
// if suction is available and the gauge
// is serviceable.
if (_serviceable_node->getBoolValue()) {
double suction = _suction_node->getDoubleValue();
double step = 0.10 * (suction / 5.0) * dt;
double step = 0.25 * (suction / 5.0) * dt;
if ((_spin + step) <= (suction / 5.0))
_spin += step;
}
if (_spin > 1.0)
_spin = 1.0;
else if (_spin < 0.0)
_spin = 0.0;
// Next, calculate the indicated roll
// and pitch, introducing errors if
// the spin is less than 0.8 (80%).
// and pitch, introducing errors.
double factor = 1.0 - ((1.0 - _spin) * (1.0 - _spin));
double roll = _roll_in_node->getDoubleValue();
double pitch = _pitch_in_node->getDoubleValue();
if (_spin < 0.8) {
// TODO
}
roll = 35 + (factor * (roll - 35));
pitch = 15 + (factor * (pitch - 15));
_roll_out_node->setDoubleValue(roll);
_pitch_out_node->setDoubleValue(pitch);
}