Function conrod_core::utils::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, 

Map a value from a given range to a new given range.