''' Solution to Problem 9.  '''

from PIL import Image

def legal( v ) :
    pass

def offset( pixel, x, y, z ) :
    pass

def shift( original, x, y, z ) :
    pass

if ( __name__  == '__main__' ) :
    import url
    link = 'http://www.cs.virginia.edu/~cs1112/images/ml.png'
    original = url.get_image( link )

    try :
        print( legal( -1 ), legal( 125 ), legal( 256 ) )
    except :
        print( 'legal() blows up' )

    try :
        print( offset( ( 25, 0, 200 ), 25, -50, 75 ) )
    except :
        print( 'offset() blows up' )

    try :
        im = shift( original, 25, -50, 75 )
        im.show()
    except :
        print( 'shift() blows up' )