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Re: T-Junctions re-visited
March 20, 2013 10:23AM
Hi Travis,

If you have a multi-map, then the only property you need on keys is that if (a==b) then (a' == b') for key-gen - that is, all equal keys have to encode the same way.

If you are using a non-multi-map then your map is auto-consolidating equal points and you must ensure that if a != b then a' != b'.

In particular, the 'iterative' rounding aglo suggested somewhere else in this now massively-out-of-control thread requires that rounding be done by a series of distance comparisons...any kind of "just round the numbers" algo fails because two nearby points that are just on opposite sides of the 'fall line' will round to different 'snapped' grids.

I had this kind of 'grid' rounding in my first version of smoothing and it can fail pretty badly when key vertices round away from each other and not to each other. I'm poking at iterative rounding this week.

cheers
Ben
SubjectAuthorViewsPosted
T-Junctions re-visited Travis Cobbs794March 11, 2013 10:38PM
Re: T-Junctions re-visited Tim Gould401March 11, 2013 11:31PM
Re: T-Junctions re-visited Roland Melkert374March 12, 2013 11:17AM
Re: T-Junctions re-visited Ben Supnik391March 12, 2013 11:17AM
Re: T-Junctions re-visited Roland Melkert361March 12, 2013 11:22AM
Re: T-Junctions re-visited Ben Supnik343March 12, 2013 11:32AM
Re: T-Junctions re-visited Roland Melkert340March 12, 2013 11:41AM
Re: T-Junctions re-visited Ben Supnik350March 12, 2013 11:55AM
Re: T-Junctions re-visited Roland Melkert346March 13, 2013 10:08AM
Re: T-Junctions re-visited Travis Cobbs368March 13, 2013 11:27AM
Re: T-Junctions re-visited Allen Smith379March 12, 2013 02:01PM
Re: T-Junctions re-visited Michael Heidemann364March 13, 2013 09:27AM
Re: T-Junctions re-visited Ben Supnik352March 13, 2013 10:37AM
Re: T-Junctions re-visited Tim Gould350March 13, 2013 02:31PM
Re: T-Junctions re-visited Michael Heidemann335March 13, 2013 03:42PM
Re: T-Junctions re-visited Michael Heidemann370March 17, 2013 04:35AM
Re: T-Junctions re-visited Ben Supnik306March 17, 2013 08:43AM
Re: T-Junctions re-visited Michael Heidemann305March 17, 2013 08:59AM
Re: T-Junctions re-visited Ben Supnik300March 17, 2013 09:02AM
Re: T-Junctions re-visited Magnus Forsberg327March 17, 2013 09:15AM
Re: T-Junctions re-visited Travis Cobbs378March 17, 2013 10:09PM
Re: T-Junctions re-visited Ben Supnik346March 18, 2013 07:30AM
Re: T-Junctions re-visited Travis Cobbs337March 18, 2013 10:57AM
Re: T-Junctions re-visited Ben Supnik346March 18, 2013 11:27AM
Re: T-Junctions re-visited Travis Cobbs338March 18, 2013 12:23PM
Re: T-Junctions re-visited Ben Supnik372March 18, 2013 01:41PM
Re: T-Junctions re-visited Roland Melkert389March 18, 2013 02:51PM
Re: T-Junctions re-visited Travis Cobbs363March 18, 2013 02:59PM
Re: T-Junctions re-visited Roland Melkert430March 18, 2013 03:41PM
Re: T-Junctions re-visited Ben Supnik404March 18, 2013 06:09PM
Re: T-Junctions re-visited Roland Melkert356March 19, 2013 11:38AM
Re: T-Junctions re-visited Ben Supnik376March 19, 2013 11:43AM
Re: T-Junctions re-visited Roland Melkert399March 19, 2013 07:07PM
Re: T-Junctions re-visited Travis Cobbs366March 19, 2013 10:13PM
Re: T-Junctions re-visited Tim Gould372March 20, 2013 03:56AM
Re: T-Junctions re-visited Travis Cobbs342March 20, 2013 10:13AM
Re: T-Junctions re-visited Ben Supnik333March 20, 2013 10:23AM
Re: T-Junctions re-visited Travis Cobbs363March 20, 2013 10:29AM
Re: T-Junctions re-visited Travis Cobbs340March 20, 2013 10:26AM
Re: T-Junctions re-visited Ben Supnik323March 20, 2013 11:18AM
Re: T-Junctions re-visited Ben Supnik361March 20, 2013 06:42AM
Re: T-Junctions re-visited Roland Melkert322March 20, 2013 11:36AM
Re: T-Junctions re-visited Philippe Hurbain358March 20, 2013 06:36AM
Re: T-Junctions re-visited Ben Supnik404March 20, 2013 06:58AM
Re: T-Junctions re-visited Allen Smith386March 20, 2013 09:08AM
Re: T-Junctions re-visited Roland Melkert422March 20, 2013 11:35AM
Re: T-Junctions re-visited Ben Supnik844March 20, 2013 11:50AM
Re: T-Junctions re-visited Michael Heidemann397March 18, 2013 03:54PM
Re: T-Junctions re-visited Roland Melkert352March 13, 2013 10:03AM
Re: T-Junctions re-visited Tim Gould319March 13, 2013 03:56PM
Re: T-Junctions re-visited Sergio Reano310March 13, 2013 03:51PM
Re: T-Junctions re-visited Roland Melkert387March 13, 2013 04:36PM
Re: T-Junctions re-visited Tim Gould337March 13, 2013 05:10PM
Re: T-Junctions re-visited Ben Supnik364March 14, 2013 08:17PM
Re: T-Junctions re-visited Tim Gould411March 14, 2013 08:41PM
Re: T-Junctions re-visited Ben Supnik405March 15, 2013 10:56AM
Re: T-Junctions re-visited Roland Melkert352March 15, 2013 11:36AM
Re: T-Junctions re-visited Ben Supnik302March 13, 2013 06:58PM
Re: T-Junctions re-visited Roland Melkert313March 13, 2013 07:27PM
Re: T-Junctions re-visited Ben Supnik310March 13, 2013 07:37PM
Re: T-Junctions re-visited Roland Melkert335March 13, 2013 07:59PM
Re: T-Junctions re-visited Ben Supnik336March 13, 2013 08:18PM
Re: T-Junctions re-visited Travis Cobbs403March 14, 2013 03:23PM
Re: T-Junctions re-visited Roland Melkert416March 14, 2013 03:34PM
Re: T-Junctions re-visited Tim Gould397March 14, 2013 03:41PM
Re: T-Junctions re-visited Roland Melkert402March 15, 2013 11:33AM
Re: T-Junctions re-visited Tim Gould348March 13, 2013 07:43PM
Re: T-Junctions re-visited Roland Melkert317March 13, 2013 08:08PM
Re: T-Junctions re-visited Tim Gould339March 13, 2013 08:18PM
Re: T-Junctions re-visited Ben Supnik403March 14, 2013 08:15PM
Re: T-Junctions re-visited Roland Melkert395March 15, 2013 11:29AM
Re: T-Junctions re-visited Travis Cobbs376March 15, 2013 12:27PM
Re: T-Junctions re-visited Ben Supnik361March 15, 2013 05:08PM
Re: T-Junctions re-visited Travis Cobbs386March 16, 2013 11:29PM
Re: T-Junctions re-visited Ben Supnik291March 17, 2013 08:58AM
Re: T-Junctions re-visited Roland Melkert292March 17, 2013 12:35PM
Re: T-Junctions re-visited Travis Cobbs338March 18, 2013 12:28PM
Re: T-Junctions re-visited Travis Cobbs410March 18, 2013 12:32PM
Re: T-Junctions re-visited Roland Melkert365March 18, 2013 05:00PM
Re: T-Junctions re-visited Travis Cobbs388March 18, 2013 11:05PM
Re: T-Junctions re-visited Roland Melkert445March 19, 2013 11:38AM
Re: T-Junctions re-visited Sergio Reano389March 26, 2013 02:46PM
Re: T-Junctions re-visited Roland Melkert331March 27, 2013 11:19AM
Re: T-Junctions re-visited Sergio Reano426March 27, 2013 01:48PM



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