eopa27@castle.ed.ac.uk (David Keeble) (09/14/90)
Hello there, I wonder if anyone could point me to some good references concerning anti-aliasing of short line elements. The basic concept I am familiar with; it is the details of the implementation that seem to be time-consuming: I don't wish to re-invent the wheel. Essentially, all I want to know is how to place an "ideal" line element of given length, thickness and angle onto a 256 grey-level screen (actually a 13" Apple colour monitor). The principle of setting the grey-level of each pixel in proportion to the area of the pixel covered by the ideal line is clear to me, but devising an algorithm to perform this doesn't appear straight-forward. The two references from the "Most Frequently Asked Questions" posting that I have managed to find in the nearest library (Foley & Van Dam (1982) and Rogers(1985)) were fine on the generalities but short on details for *lines*. Of course, the ideal solution would be some nice, simple, software, ideally in "C"---or even a pointer to where I might find same. This seems like a kind of simple question, though I've never seen it on comp.graphics. Please respond by email (DRT@UK.AC.LEICESTER.VAX), and if there is enough interest I'll summarize for the net. Thanks in advance. David Keeble Best address: DRT@UK.AC.LEICESTER.VAX 2nd Best Address: EOPA27@UK.AC.EDINBURGH.CASTLE "There is death in the hane." "Never break symmetry."