Adam Jackson <[email protected]> writes: > I assume this is meant in the same sense that The Onion is America's > Finest News Source.
Not entirely? In reality, getting arcs to do anything like what the spec suggested took a huge amount of time. With Bob's closed-form solution for the quartic, it's probably even possible to draw exactly what the protocol specifies, but would have required a rather large number of bits (I think I estimated 256 bit math?). Of course, dashes are impossible to draw precisely... Once we really sat back to look at X arcs and realized that they were both computationally expensive and useless, we got disillusioned and wandered off to do other things. If we were doing this today, we would do what cairo does -- approximate conics with splines and use piece-wise pen/path interpolation for wide figures. I'm not sure what to do about the evolute though; it was so satisfying to draw the first ones, and ignoring them as cairo does just seems like a cop-out. That whole 'if it looks good, it is good' took another twenty five years to really sink in. -- -keith
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