Re: [AGG] Subpixel problem - 90/180 deg. lines

[Phil E. <spa...@ch...>]

Oyvind Idland wrote:
> When a line segment is 90 or 180 degrees (has same x or y), the subpixel
> logic makes the lines appear as 50% transparent and twice as fat as they
> should be.

Presumably that is the standard issue of whether 1-px-wide lines are 
better centred on whole coordinates or on 0.5 coordinates, i.e. are 
"pixels" points or unit-squares.


Phil.