Function nannou::prelude::map_range

pub fn map_range<X, Y>(
    val: X,
    in_min: X,
    in_max: X,
    out_min: Y,
    out_max: Y
) -> Y
where
    X: NumCast,
    Y: NumCast,

Maps a value from an input range to an output range.

Note that map_range doesn’t clamp the output: if val is outside the input range, the mapped value will be outside the output range. (Use clamp to restrict the output, if desired.)

Examples

assert_eq!(map_range(128, 0, 255, 0.0, 1.0), 0.5019607843137255);

assert_eq!(map_range(3, 0, 10, 0.0, 1.0), 0.3);

// When the value is outside the input range, the result will be outside the output range.
let result = map_range(15, 0, 10, 0.0, 1.0);
assert_eq!(result, 1.5);
assert_eq!(clamp(result, 0.0, 1.0), 1.0);