#robotics Logs

Dec 05 2017

12:54 AM rue_bed: but your screwed because you dont know if the next segment off that colinear segment is going to take you in or out of the polygon
12:57 AM rue_bed: and it'll depend on the direction of the segment that took you into the colinear segment
12:57 AM rue_bed: so, what if any point on the ray is thrown out
12:57 AM rue_bed: your still screwed,
12:57 AM rue_bed: ok, but the colinear line segment can be removed, and you can collapse the problem to the lines taking you in and out of the problem
12:57 AM rue_bed: ok,
12:57 AM rue_bed: so the problem is, if you have two lines that land points on your ray, what do you do with them
12:57 AM rue_bed: if they are on the same side, they dont count, but if they are on opposite sides, they do
12:57 AM rue_bed: crossings via points on ray
12:57 AM rue_bed: ok
12:58 AM rue_bed: so, if any line segments end, lies on the ray, the direction of the next segment is important
12:59 AM rue_bed: its a half-crossing
01:00 AM rue_bed: but we could avoid all this if you borke the polygon into triangles and tested the triangles
08:54 AM rue_mohr: SO, maybe what I'll do is play with methods for line intersections more, and then work on breaking up polygons
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