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The Point object may be initialized with either a tuple, or individual
parameters.
For example:
>>> p = Point((5, 23)) # 2D point, passed in as a tuple
>>> p = Point(5, 23, 8) # 3D point, passed in with individual parameters
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Create a coordinate sequence, set X, Y, [Z], and create point
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r r r � _set_listL s zPoint._set_listc C s | j �|d|� d S )Nr ��_cs� setOrdinate)r �index�valuer r r � _set_singleY r# zPoint._set_singlec c s" � t t| ��D ]}| | V qdS )z'Iterate over coordinates of this Point.N)�ranger )r r6 r r r �__iter__\ s � �zPoint.__iter__c C s | j rdS | jr
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Point.__len__c C s. |dkr| j S |dkr| jS |dkr| jS d S )Nr r+ r )r r r )r rA r r r �_get_single_externalj s �zPoint._get_single_externalc C s | j �dd�S )z$Return the X component of the Point.r �r? � getOrdinater" r r r r t � zPoint.xc C s | j �dd|� dS )z!Set the X component of the Point.r Nr> �r rB r r r r y � c C s | j �dd�S )z$Return the Y component of the Point.r+ r rI r" r r r r ~ rK zPoint.yc C s | j �dd|� dS )z!Set the Y component of the Point.r+ r Nr> rL r r r r � rM c C s | j r
| j�dd�S dS )z$Return the Z component of the Point.r r N)rF r? rJ r" r r r r � s zPoint.zc C s" | j std��| j�dd|� dS )z!Set the Z component of the Point.zCannot set Z on 2D Point.r r N)rF r r? r@ rL r r r r � s c C s | j jS )z Return a tuple of the point.)r? r r" r r r r � s z Point.tuplec C s || j d< dS )z6Set the coordinates of the point with the given tuple.r N)r? )r �tupr r r r � rK )NNNN)�__name__�
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