| --- Log opened Mon Jul 29 00:00:49 2019 |
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| 19:05 | <~Vornicus> | Ok. it's faces[12], I send edges[26] to the corrector. given that, what does the corrector receive? |
| 19:12 | <@ErikMesoy> | ...14? |
| 19:13 | <@abudhabi> | 312? |
| 19:15 | <~Vornicus> | okay it's points[6], [7], [8], [4]... that's *finite* |
| 19:15 | <~Vornicus> | fuuuu |
| 19:15 | <~Vornicus> | Okay |
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| 19:58 | <~Vornicus> | okay it's calling it non-convex |
| 19:59 | <~Vornicus> | ...because it *is*... |
| 20:02 | <~Vornicus> | but this still somehow needs fixing. |
| 20:06 | <~Vornicus> | Okay. This case is... I land on a half-distant edge (and there's no way I could avoid that here; this one is outside the hull) |
| 20:07 | <&jeroud> | Are you struggling with boundary conditions? |
| 20:07 | <~Vornicus> | Yeah, as usual |
| 20:07 | <~Vornicus> | goddamn hate geometry |
| 20:07 | <&jeroud> | Because it's always boundary conditions that screw up the beautiful and elegant mathematics. |
| 20:08 | <~Vornicus> | This is "the point is outside the previous hull, but collinear with two other points on the hull *and* the distant points" |
| 20:08 | <&jeroud> | And physics. |
| 20:08 | <&jeroud> | And computer science. |
| 20:08 | <&jeroud> | Just stop having boundaries.~ |
| 20:08 | <~Vornicus> | That's what I was trying to do in the first place |
| 20:11 | <~Vornicus> | all the distant point shit makes *most* of this easier: since the whole universe is inside the mesh now, the great majority of special cases just disappear. I don't have to worry about special cases for being on the convex hull outside of a couple of specific spots. |
| 20:11 | <~Vornicus> | Unfortunately, I've now hunted down this boundary condition and oh boy I'm not happy about this one. |
| 20:12 | | * TheWatcher patpats Vorn |
| 20:13 | <@TheWatcher> | One of these days I shall understand why you're torturing yourself like this, but until then I shall simply admire your tenacity |
| 20:17 | <~Vornicus> | just get my my damn pig tail fibers |
| 20:22 | <~Vornicus> | ok. being specific: this problem is: I've created a degenerate finite triangle; this triangle *should* correct outward, breaking the outside line into two |
| 20:23 | <~Vornicus> | The corrector can't do that, because in normal operation the corrector can only ever correct edges that are opposite the New Point |
| 20:24 | <~Vornicus> | and in this case that edge is one that points into the finite portion of the mesh: I have a triangle pair that looks like a flag |
| 20:24 | <~Vornicus> | So in this specific situation the thing that needs correcting is different from the thing that needs correcting anywhere else. |
| 20:35 | <~Vornicus> | yhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhl;............................................................m ,,,,,,,,,,,,,,,,,,,l;.' |
| 20:36 | < Vash> | I already kicked her off the desk |
| 20:36 | < Vash> | so no need to kick vorn, I'll keep an eye out. (he went out to get himself some foodz) |
| 20:38 | <~Vornicus> | catte of dingusry +3 |
| 20:47 | <@Tamber> | mow |
| 20:53 | <&McMartin> | \o/ |
| 20:57 | <~Vornicus> | Okay. How do I solve this. |
| 20:57 | <~Vornicus> | - I know that any edge that gets corrected won't have this problem, so I don't have to check those for finiteness |
| 20:58 | <~Vornicus> | - I know that only degenerate finite tris are going to have this problem. |
| 20:58 | <&McMartin> | FILTHY DEGENERATES |
| 20:59 | <~Vornicus> | So I end up only needing to check tris associated with edges that came from the creation step, to see if they are both finite and degenerate. |
| 21:09 | <~Vornicus> | I *think* I need to hold off until I've done all other corrections, but once i do that: I check ones that started on the list and now remain, ask if they are finite degenerate, then attempt correction on *the other two edges*. Of which only one will work. I think. |
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| --- Log closed Tue Jul 30 00:00:51 2019 |