def linear(arr1, arr2):
    """
    Create a linear blend of arr1 (fading out) and arr2 (fading in)
    """
    n = N.shape(arr1)[0]
    try:
        channels = N.shape(arr1)[1]
    except:
        channels = 1

    f_in = N.linspace(0, 1, num=n)
    f_out = N.linspace(1, 0, num=n)

    # f_in = N.arange(n) / float(n - 1)
    # f_out = N.arange(n - 1, -1, -1) / float(n)

    if channels > 1:
        f_in = N.tile(f_in, (channels, 1)).T
        f_out = N.tile(f_out, (channels, 1)).T

    vals = f_out * arr1 + f_in * arr2
    return vals
def linear ( arr1 , arr2 ) : n = N . shape ( arr1 ) [ 0 ] try : channels = N . shape ( arr1 ) [ 1 ] except : channels = 1 f_in = N . linspace ( 0 , 1 , num = n ) f_out = N . linspace ( 1 , 0 , num = n ) if channels > 1 : f_in = N . tile ( f_in , ( channels , 1 ) ) . T f_out = N . tile ( f_out , ( channels , 1 ) ) . T vals = f_out * arr1 + f_in * arr2 return vals
Create a linear blend of arr1 (fading out) and arr2 (fading in)