Am 21.08.2011 00:26, schrieb Darren New:
> On 8/20/2011 11:55, Warp wrote:
>> So no, you don't get it "almost for free". Not if you want a high degree
>> of accuracy.
>
> Actually, I think you do, if you keep the slope of the line positive and
> below 45-degrees. Then you use basic rotations of the algorithm to
> handle other cases. The trick is the line will never go through more
> than 2 pixels in the same column, so whatever doesn't go into the first
> pixel does go into the second picture.

Not true - unless you accept diagonal lines to appear thinner than 
horizontal or vertical ones; 45 degree lines of proper width can 
(partially) cover up to 4 pixels per column.

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