2.6.1 Unweighted Area Sampling

cf. [FvDFH90, 3.17.2]

Here we consider instead of the mathematically infinitely thin line a line with some thickness, i.e. a small rectangle. We color each pixel according to the area of the corresponding unit square which is covered by this rectangle.

Figure: Antialiasing by unweighted area sampling
\includegraphics[]{antialiasing-1}
Andreas Kriegl 2003-07-23