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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 Cobbs664March 11, 2013 10:38PM
Re: T-Junctions re-visited Tim Gould311March 11, 2013 11:31PM
Re: T-Junctions re-visited Roland Melkert302March 12, 2013 11:17AM
Re: T-Junctions re-visited Ben Supnik302March 12, 2013 11:17AM
Re: T-Junctions re-visited Roland Melkert279March 12, 2013 11:22AM
Re: T-Junctions re-visited Ben Supnik284March 12, 2013 11:32AM
Re: T-Junctions re-visited Roland Melkert269March 12, 2013 11:41AM
Re: T-Junctions re-visited Ben Supnik285March 12, 2013 11:55AM
Re: T-Junctions re-visited Roland Melkert284March 13, 2013 10:08AM
Re: T-Junctions re-visited Travis Cobbs298March 13, 2013 11:27AM
Re: T-Junctions re-visited Allen Smith316March 12, 2013 02:01PM
Re: T-Junctions re-visited Michael Heidemann281March 13, 2013 09:27AM
Re: T-Junctions re-visited Ben Supnik282March 13, 2013 10:37AM
Re: T-Junctions re-visited Tim Gould279March 13, 2013 02:31PM
Re: T-Junctions re-visited Michael Heidemann274March 13, 2013 03:42PM
Re: T-Junctions re-visited Michael Heidemann280March 17, 2013 04:35AM
Re: T-Junctions re-visited Ben Supnik251March 17, 2013 08:43AM
Re: T-Junctions re-visited Michael Heidemann248March 17, 2013 08:59AM
Re: T-Junctions re-visited Ben Supnik257March 17, 2013 09:02AM
Re: T-Junctions re-visited Magnus Forsberg248March 17, 2013 09:15AM
Re: T-Junctions re-visited Travis Cobbs328March 17, 2013 10:09PM
Re: T-Junctions re-visited Ben Supnik281March 18, 2013 07:30AM
Re: T-Junctions re-visited Travis Cobbs290March 18, 2013 10:57AM
Re: T-Junctions re-visited Ben Supnik298March 18, 2013 11:27AM
Re: T-Junctions re-visited Travis Cobbs281March 18, 2013 12:23PM
Re: T-Junctions re-visited Ben Supnik300March 18, 2013 01:41PM
Re: T-Junctions re-visited Roland Melkert311March 18, 2013 02:51PM
Re: T-Junctions re-visited Travis Cobbs279March 18, 2013 02:59PM
Re: T-Junctions re-visited Roland Melkert325March 18, 2013 03:41PM
Re: T-Junctions re-visited Ben Supnik308March 18, 2013 06:09PM
Re: T-Junctions re-visited Roland Melkert300March 19, 2013 11:38AM
Re: T-Junctions re-visited Ben Supnik322March 19, 2013 11:43AM
Re: T-Junctions re-visited Roland Melkert332March 19, 2013 07:07PM
Re: T-Junctions re-visited Travis Cobbs310March 19, 2013 10:13PM
Re: T-Junctions re-visited Tim Gould292March 20, 2013 03:56AM
Re: T-Junctions re-visited Travis Cobbs283March 20, 2013 10:13AM
Re: T-Junctions re-visited Ben Supnik271March 20, 2013 10:23AM
Re: T-Junctions re-visited Travis Cobbs278March 20, 2013 10:29AM
Re: T-Junctions re-visited Travis Cobbs287March 20, 2013 10:26AM
Re: T-Junctions re-visited Ben Supnik265March 20, 2013 11:18AM
Re: T-Junctions re-visited Ben Supnik280March 20, 2013 06:42AM
Re: T-Junctions re-visited Roland Melkert273March 20, 2013 11:36AM
Re: T-Junctions re-visited Philippe Hurbain276March 20, 2013 06:36AM
Re: T-Junctions re-visited Ben Supnik300March 20, 2013 06:58AM
Re: T-Junctions re-visited Allen Smith298March 20, 2013 09:08AM
Re: T-Junctions re-visited Roland Melkert299March 20, 2013 11:35AM
Re: T-Junctions re-visited Ben Supnik699March 20, 2013 11:50AM
Re: T-Junctions re-visited Michael Heidemann299March 18, 2013 03:54PM
Re: T-Junctions re-visited Roland Melkert273March 13, 2013 10:03AM
Re: T-Junctions re-visited Tim Gould252March 13, 2013 03:56PM
Re: T-Junctions re-visited Sergio Reano263March 13, 2013 03:51PM
Re: T-Junctions re-visited Roland Melkert321March 13, 2013 04:36PM
Re: T-Junctions re-visited Tim Gould290March 13, 2013 05:10PM
Re: T-Junctions re-visited Ben Supnik273March 14, 2013 08:17PM
Re: T-Junctions re-visited Tim Gould338March 14, 2013 08:41PM
Re: T-Junctions re-visited Ben Supnik331March 15, 2013 10:56AM
Re: T-Junctions re-visited Roland Melkert281March 15, 2013 11:36AM
Re: T-Junctions re-visited Ben Supnik251March 13, 2013 06:58PM
Re: T-Junctions re-visited Roland Melkert266March 13, 2013 07:27PM
Re: T-Junctions re-visited Ben Supnik245March 13, 2013 07:37PM
Re: T-Junctions re-visited Roland Melkert265March 13, 2013 07:59PM
Re: T-Junctions re-visited Ben Supnik291March 13, 2013 08:18PM
Re: T-Junctions re-visited Travis Cobbs311March 14, 2013 03:23PM
Re: T-Junctions re-visited Roland Melkert326March 14, 2013 03:34PM
Re: T-Junctions re-visited Tim Gould339March 14, 2013 03:41PM
Re: T-Junctions re-visited Roland Melkert308March 15, 2013 11:33AM
Re: T-Junctions re-visited Tim Gould268March 13, 2013 07:43PM
Re: T-Junctions re-visited Roland Melkert260March 13, 2013 08:08PM
Re: T-Junctions re-visited Tim Gould265March 13, 2013 08:18PM
Re: T-Junctions re-visited Ben Supnik329March 14, 2013 08:15PM
Re: T-Junctions re-visited Roland Melkert322March 15, 2013 11:29AM
Re: T-Junctions re-visited Travis Cobbs290March 15, 2013 12:27PM
Re: T-Junctions re-visited Ben Supnik311March 15, 2013 05:08PM
Re: T-Junctions re-visited Travis Cobbs299March 16, 2013 11:29PM
Re: T-Junctions re-visited Ben Supnik247March 17, 2013 08:58AM
Re: T-Junctions re-visited Roland Melkert250March 17, 2013 12:35PM
Re: T-Junctions re-visited Travis Cobbs279March 18, 2013 12:28PM
Re: T-Junctions re-visited Travis Cobbs314March 18, 2013 12:32PM
Re: T-Junctions re-visited Roland Melkert290March 18, 2013 05:00PM
Re: T-Junctions re-visited Travis Cobbs327March 18, 2013 11:05PM
Re: T-Junctions re-visited Roland Melkert345March 19, 2013 11:38AM
Re: T-Junctions re-visited Sergio Reano331March 26, 2013 02:46PM
Re: T-Junctions re-visited Roland Melkert278March 27, 2013 11:19AM
Re: T-Junctions re-visited Sergio Reano333March 27, 2013 01:48PM



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