Re: Bidi reordering engine upgraded

[David Kastrup]

martin rudalics <address@hidden> writes:

>> This is because to the human eye pixels are similar to points in math
>> (i.e.has location, does not have extent).  Therefor, a mental "magnifying
>> glass" (in order to be useful) needs to preserve the point-like property
>> of pixels unaffected from the "zoom factor".
>>
>> Which means that what counts for line length is not number of pixels
>> but the spaces between.  See line of length 10, magnified:
>>
>>      0   1   2   3   4   5   6   7   8   9   0
>>      *   *   *   *   *   *   *   *   *   *   *
>
> I doubt my eye (and whatever there's left behind it) would consider
>
>   0
>   *
>
> having zero extent.

So which direction is the non-zero extent in?  Left-right or up-down?
I think the argument is that the 1-pixel undirectional extent you see is
a property of the pen rather than of the line.

-- 
David Kastrup