Mapping a range of values to another

Question

I am looking for ideas on how to translate one range values to another in Python. I am working on hardware project and am reading data from a sensor that can return a range

Answer 1

I was looking for the same thing in python to map angles 0-300deg to raw dynamixel values 0-1023, or 1023-0 depending on the actuator orientations.

I ended up going very simple.

Variables:

x:input value; 
a,b:input range
c,d:output range
y:return value

Function:

def mapFromTo(x,a,b,c,d):
   y=(x-a)/(b-a)*(d-c)+c
   return y

Usage:

dyn111.goal_position=mapFromTo(pos111,0,300,0,1024)