Function cichlid::hsv_gradient

pub fn hsv_gradient<'a, C: 'a + From<HSV>, I: IntoIterator<Item = &'a mut C>>(
    output: I, 
    length: usize, 
    start: HSV, 
    end: HSV, 
    dir: GradientDirection
)

Creates a axial (two-color) gradient from the HSV values start to (exclusive) end.

This function will fill the array inclusive of the start HSV and exclusive of the end HSV. This means that after completion, output[output.len() - 1] will not be the end color, but rather the interpolated color before start`.

Edge Cases

If output is empty, the operation returns immediately.