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Improve intersections in some cases by extending untrimmed road edges… #149

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dabreegster
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… a bit. #136

I'm not sure we should do this. But just to discuss the idea...

seattle_slip_lanes improves:
Screenshot from 2022-12-08 14-58-43
Screenshot from 2022-12-08 14-58-49
Though this is a weird case, because got overlapping intersections, or very nearly.

aurora_sausage_link reveals an interesting problem.
Screenshot from 2022-12-08 14-59-51
Screenshot from 2022-12-08 15-00-01
It's OK before, but we create less minimal intersections, and then the road doesn't meet the intersection cleanly. Because the trimmed back center is right on a slight curve, when we project left and right, the miter/bevel/whatever join acts a bit differently.

Is this an idea worth pursuing and refining? I'm more tempted to focus on something like seattle_slip_lanes where it gets us a bit closer to something good, but keep focusing on this one test case and figure out everything needed to make it look better.

@dabreegster
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Don't think this is as relevant an idea now, closing

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