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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 Cobbs850March 11, 2013 10:38PM
Re: T-Junctions re-visited Tim Gould447March 11, 2013 11:31PM
Re: T-Junctions re-visited Roland Melkert397March 12, 2013 11:17AM
Re: T-Junctions re-visited Ben Supnik414March 12, 2013 11:17AM
Re: T-Junctions re-visited Roland Melkert386March 12, 2013 11:22AM
Re: T-Junctions re-visited Ben Supnik369March 12, 2013 11:32AM
Re: T-Junctions re-visited Roland Melkert365March 12, 2013 11:41AM
Re: T-Junctions re-visited Ben Supnik372March 12, 2013 11:55AM
Re: T-Junctions re-visited Roland Melkert373March 13, 2013 10:08AM
Re: T-Junctions re-visited Travis Cobbs396March 13, 2013 11:27AM
Re: T-Junctions re-visited Allen Smith402March 12, 2013 02:01PM
Re: T-Junctions re-visited Michael Heidemann387March 13, 2013 09:27AM
Re: T-Junctions re-visited Ben Supnik372March 13, 2013 10:37AM
Re: T-Junctions re-visited Tim Gould380March 13, 2013 02:31PM
Re: T-Junctions re-visited Michael Heidemann362March 13, 2013 03:42PM
Re: T-Junctions re-visited Michael Heidemann392March 17, 2013 04:35AM
Re: T-Junctions re-visited Ben Supnik334March 17, 2013 08:43AM
Re: T-Junctions re-visited Michael Heidemann330March 17, 2013 08:59AM
Re: T-Junctions re-visited Ben Supnik322March 17, 2013 09:02AM
Re: T-Junctions re-visited Magnus Forsberg347March 17, 2013 09:15AM
Re: T-Junctions re-visited Travis Cobbs401March 17, 2013 10:09PM
Re: T-Junctions re-visited Ben Supnik369March 18, 2013 07:30AM
Re: T-Junctions re-visited Travis Cobbs366March 18, 2013 10:57AM
Re: T-Junctions re-visited Ben Supnik384March 18, 2013 11:27AM
Re: T-Junctions re-visited Travis Cobbs359March 18, 2013 12:23PM
Re: T-Junctions re-visited Ben Supnik409March 18, 2013 01:41PM
Re: T-Junctions re-visited Roland Melkert426March 18, 2013 02:51PM
Re: T-Junctions re-visited Travis Cobbs397March 18, 2013 02:59PM
Re: T-Junctions re-visited Roland Melkert463March 18, 2013 03:41PM
Re: T-Junctions re-visited Ben Supnik446March 18, 2013 06:09PM
Re: T-Junctions re-visited Roland Melkert397March 19, 2013 11:38AM
Re: T-Junctions re-visited Ben Supnik411March 19, 2013 11:43AM
Re: T-Junctions re-visited Roland Melkert436March 19, 2013 07:07PM
Re: T-Junctions re-visited Travis Cobbs407March 19, 2013 10:13PM
Re: T-Junctions re-visited Tim Gould413March 20, 2013 03:56AM
Re: T-Junctions re-visited Travis Cobbs376March 20, 2013 10:13AM
Re: T-Junctions re-visited Ben Supnik372March 20, 2013 10:23AM
Re: T-Junctions re-visited Travis Cobbs405March 20, 2013 10:29AM
Re: T-Junctions re-visited Travis Cobbs378March 20, 2013 10:26AM
Re: T-Junctions re-visited Ben Supnik361March 20, 2013 11:18AM
Re: T-Junctions re-visited Ben Supnik384March 20, 2013 06:42AM
Re: T-Junctions re-visited Roland Melkert361March 20, 2013 11:36AM
Re: T-Junctions re-visited Philippe Hurbain392March 20, 2013 06:36AM
Re: T-Junctions re-visited Ben Supnik428March 20, 2013 06:58AM
Re: T-Junctions re-visited Allen Smith422March 20, 2013 09:08AM
Re: T-Junctions re-visited Roland Melkert469March 20, 2013 11:35AM
Re: T-Junctions re-visited Ben Supnik896March 20, 2013 11:50AM
Re: T-Junctions re-visited Michael Heidemann433March 18, 2013 03:54PM
Re: T-Junctions re-visited Roland Melkert371March 13, 2013 10:03AM
Re: T-Junctions re-visited Tim Gould337March 13, 2013 03:56PM
Re: T-Junctions re-visited Sergio Reano331March 13, 2013 03:51PM
Re: T-Junctions re-visited Roland Melkert407March 13, 2013 04:36PM
Re: T-Junctions re-visited Tim Gould358March 13, 2013 05:10PM
Re: T-Junctions re-visited Ben Supnik401March 14, 2013 08:17PM
Re: T-Junctions re-visited Tim Gould452March 14, 2013 08:41PM
Re: T-Junctions re-visited Ben Supnik427March 15, 2013 10:56AM
Re: T-Junctions re-visited Roland Melkert377March 15, 2013 11:36AM
Re: T-Junctions re-visited Ben Supnik328March 13, 2013 06:58PM
Re: T-Junctions re-visited Roland Melkert342March 13, 2013 07:27PM
Re: T-Junctions re-visited Ben Supnik332March 13, 2013 07:37PM
Re: T-Junctions re-visited Roland Melkert371March 13, 2013 07:59PM
Re: T-Junctions re-visited Ben Supnik374March 13, 2013 08:18PM
Re: T-Junctions re-visited Travis Cobbs440March 14, 2013 03:23PM
Re: T-Junctions re-visited Roland Melkert452March 14, 2013 03:34PM
Re: T-Junctions re-visited Tim Gould444March 14, 2013 03:41PM
Re: T-Junctions re-visited Roland Melkert427March 15, 2013 11:33AM
Re: T-Junctions re-visited Tim Gould370March 13, 2013 07:43PM
Re: T-Junctions re-visited Roland Melkert353March 13, 2013 08:08PM
Re: T-Junctions re-visited Tim Gould369March 13, 2013 08:18PM
Re: T-Junctions re-visited Ben Supnik444March 14, 2013 08:15PM
Re: T-Junctions re-visited Roland Melkert425March 15, 2013 11:29AM
Re: T-Junctions re-visited Travis Cobbs400March 15, 2013 12:27PM
Re: T-Junctions re-visited Ben Supnik390March 15, 2013 05:08PM
Re: T-Junctions re-visited Travis Cobbs405March 16, 2013 11:29PM
Re: T-Junctions re-visited Ben Supnik320March 17, 2013 08:58AM
Re: T-Junctions re-visited Roland Melkert319March 17, 2013 12:35PM
Re: T-Junctions re-visited Travis Cobbs364March 18, 2013 12:28PM
Re: T-Junctions re-visited Travis Cobbs443March 18, 2013 12:32PM
Re: T-Junctions re-visited Roland Melkert401March 18, 2013 05:00PM
Re: T-Junctions re-visited Travis Cobbs427March 18, 2013 11:05PM
Re: T-Junctions re-visited Roland Melkert484March 19, 2013 11:38AM
Re: T-Junctions re-visited Sergio Reano432March 26, 2013 02:46PM
Re: T-Junctions re-visited Roland Melkert361March 27, 2013 11:19AM
Re: T-Junctions re-visited Sergio Reano458March 27, 2013 01:48PM



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