问题
I have servo motor can rotate from 0 to 180 only And I have angles range from -180 to 180 to send to servo how can i normalize between those two ranges?? And if there is any MATLAB function to do that?? thanks
回答1:
You could Add 180 and divide by 2 as @High Performance Mark suggests for your specific problem or here is a generalized version of it based on This post.
This equation holds good for any limits
I have written a simple function based on the equation:
function [out] = normalizeLim( A,oldL,oldR,newL,newR )
out = newL*(1-((A-oldL)./(oldR-oldL))) + newR*((A-oldL)./(oldR-oldL));
end
Example:
x = randi([-180,180],1,8); %// Generating a random vector within the range -180 to 180
>> x
x =
-153 -161 11 101 157 -134 25 -11
>> normalizeLim(x,-180,180,0,180) %// Specifying old and new required limits
ans =
13.5000 9.5000 95.5000 140.5000 168.5000 23.0000 102.5000 84.5000
If you want them as integers, you might round them using round function
Hope this helps!!
来源：https://stackoverflow.com/questions/30235714/normalize-angles-from-180-180-to-0-180