----------------------------------------
> From: rwob...@hotmail.com
> To: __pete...@web.de
> Subject: RE: [Tutor] Can this be done easly
> Date: Sun, 19 Sep 2010 17:01:22 +0000
>
>
>
>
> ----------------------------------------
>> To: tutor@python.org
>> From: __pete...@web.de
>> Date: Sun, 19 Sep 2010 18:27:54 +0200
>> Subject: Re: [Tutor] Can this be done easly
>>
>> Roelof Wobben wrote:
>>
>>>> Hint: why does this work:
>>>>
>>>>> def __init__(self, x=0, y=0):
>>>>
>>>> ...while this doesnt:
>>>>
>>>>> def _init_(self, base_point, width=0, length=0):
>>>>
>>>> Peter
>>
>>> Maybe because base_point has no value ?
>>
>> No. One __init__ has two underscores (correct) on each side, the other
>> _init_ only one (wrong).
>>
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>
Hello,
Everybody thanks.
For this exercise :
3.Write a function named move_rect that takes a Rectangle and two parameters
named dx and dy. It should change the location of the rectangle by adding dx to
the x coordinate of corner and adding dy to the y coordinate of corner.
Is this one of the possible solutions :
class Point:
def __init__(self, x=0, y=0):
self.x = x
self.y = y
class Rectangle(object):
def __init__(self, base_point, width=0, length=0):
self.base_point = base_point
self.width = width
self.length = length
def moverect(rectangle, dx, dy):
rechthoek.base_point.y += dy
rechthoek.base_point.x +=dx
return rechthoek
punt = Point(3,4)
rechthoek = Rectangle (punt,20,30)
test = moverect (Rectangle, 4,3)
print rechthoek.base_point.x
Roelof
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