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Re: Question about edges
March 22, 2013 04:48PM
Hi Tim,

Quote
Tim Gould
The one notable exception is if a part used a rotation on something really long to match with another detail. Which is unreliable design and best caught at the design/review stage.

That's the one thing that's strange. I get failures to lock-upon the 6x6 dishes if my TOL is < about 0.05. For example, 0.01 will lock up some but not all of the dishes.

And to make it worse, some pattern parts have markings intentionally authored with triangles < 0.05. (My guess is that these triangles were induced to remove T junctions.)

Quote

You could get rid of the problem by iterating until no matches are found. But that seems like overkill to me and is possibly more likely to result in false joins.

Right - I thought about that, but if the choice is between two somewhat arbitrary outputs for a wrong input, I might as well pick the one that requires less processing time. :-) I'm screening now to see which parts have 'close' outputs despite not having tiny input triangles. One technic part that failed this test had some authoring problems.

My hope was that, with no points closer than TOL after running, I could write the T-splitting with no concern for numeric precision (because TOL would be significantly bigger than the real floating point limits I would face).

But it may instead be the case that where the points are close together, the input was funky and the output can be funky too.

Cheers
Ben
SubjectAuthorViewsPosted
Question about edges Roland Melkert457March 08, 2013 12:41PM
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Re: Question about edges Roland Melkert195March 09, 2013 11:11AM
Re: Question about edges Philippe Hurbain180March 09, 2013 11:25AM
Re: Question about edges Roland Melkert202March 09, 2013 12:23PM
Re: Question about edges Ben Supnik194March 09, 2013 08:18PM
Re: Question about edges Philippe Hurbain200March 09, 2013 10:53PM
Re: Question about edges Roland Melkert233March 10, 2013 11:35AM
Re: Question about edges Philippe Hurbain205March 10, 2013 12:00PM
Re: Question about edges Ben Supnik208March 10, 2013 04:11PM
Re: Question about edges Roland Melkert215March 10, 2013 04:32PM
Re: Question about edges Ben Supnik211March 10, 2013 07:31PM
Re: Question about edges Travis Cobbs197March 10, 2013 10:19PM
Re: Question about edges Ben Supnik187March 10, 2013 11:20PM
Re: Question about edges Tim Gould247March 10, 2013 11:40PM
Re: Question about edges Ben Supnik205March 11, 2013 11:52AM
Re: Question about edges Roland Melkert201March 11, 2013 01:31PM
Re: Question about edges Tim Gould202March 11, 2013 01:58PM
Re: Question about edges Roland Melkert199March 11, 2013 04:48PM
Re: Question about edges Tim Gould221March 11, 2013 04:57PM
Re: Question about edges Roland Melkert184March 11, 2013 06:02PM
Re: Question about edges Tim Gould195March 11, 2013 06:24PM
Re: Question about edges Travis Cobbs215March 11, 2013 10:12PM
Re: Question about edges Tim Gould218March 11, 2013 02:07PM
Re: Question about edges Ben Supnik233March 22, 2013 03:33PM
Re: Question about edges Tim Gould222March 22, 2013 03:44PM
Re: Question about edges Ben Supnik219March 22, 2013 04:48PM
Re: Question about edges Philippe Hurbain271March 23, 2013 01:49AM
Re: Question about edges Travis Cobbs196March 11, 2013 11:20AM
Re: Question about edges Roland Melkert211March 11, 2013 01:50PM
Re: Question about edges Roland Melkert178March 12, 2013 11:15AM
Re: Question about edges Ben Supnik196March 12, 2013 11:24AM
Re: Question about edges Roland Melkert183March 12, 2013 11:37AM
Re: Question about edges Travis Cobbs180March 09, 2013 10:57PM



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