/**
* Returns the altitude of the aircraft at the beginning of this leg
* [m MSL], as specified in the MacCready calculation input
* parameters.
*/
gcc_pure
double GetStartAltitude() const {
return GetRequiredAltitude() + altitude_difference;
}
/**
* Calculate the height above/below final glide, assuming pure
* glide.
*
* @param start_altitude the current aircraft altitude
*/
gcc_pure
double GetPureGlideAltitudeDifference(double start_altitude) const {
return start_altitude - GetRequiredAltitude();
}
/**
* Calculate the height above/below final glide, assuming pure
* glide.
*
* @param start_altitude the current aircraft altitude
*/
gcc_pure
fixed GetPureGlideAltitudeDifference(fixed start_altitude) const {
return start_altitude - GetRequiredAltitude();
}