Question

I know this is a noobish question put i could not figure it out >.<
I have an number from -1000 to 1000 and I need to map it to numbers 0 to 200.
I think it has to do with the map() function but i’m not sure.

Thanks

Answer 1

“0 would be 100, -500, would be 50 and 500 would be 150”

Then try the following function:

def mapNumber(a):
    return int(a + 1000) / 10

This way:

mapNumber(-1000)
> 0

mapNumber(-500)
> 50

mapNumber(0)
> 100

mapNumber(500)
> 150

mapNumber(1000)
> 200

This will map your integers into integers. And since your target range is 10 times smaller, it will map ten different numbers to the same.

If you want to get a floating point number, try this:

def mapNumber(a):
    return (a + 1000.) / 10.