def get_raw_value(self, percentage):
"""
Takes a percentage value and returns the corresponding raw PPM
signal value.
"""
percentage = clamp(percentage, -100, 100)
if percentage < 0:
return int(interpolate(percentage, -100, 0, self._min, self._center))
else:
return int(interpolate(percentage, 0, 100, self._center, self._max))
def get_charge(self, raw_value):
"""
Returns the given raw value as a percentage.
100 = full
0 = empty
"""
return int(interpolate(raw_value, self._empty, self._full, 0, 100))
def scale_axis_value(self, value, axis):
"""
Scales the given value for the given axis to a number from -1 to 1 for
the stick, and 0 to 1 for the throttle.
"""
range = None
low, high = -1.0, 1.0
if axis == X_AXIS:
range = self.x_range
elif axis == Y_AXIS:
range = self.y_range
elif axis == T_AXIS:
range = self.t_range
low = 0.0
return interpolate(value, range.low, range.high, low, high)
