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Re: T-Junctions re-visited
avatarMarch 19, 2013 10:13PM
For reference I use a std::map for my vertex lookups. My key is a custom class that uses integers to store (x * 100, y * 100, z * 100), and implements operator<. See the TREVertexKey class here:

http://ldview.cvs.sourceforge.net/viewvc/ldview/LDView/TRE/TREVertexKey.h?view=markup

You could do something similar with your adjusted vertices. The std::map class uses a balanced binary tree, so has a lookup performance of O( log n ). Insertion is also O( log n ), but the balancing/heap allocation means that actual time to insert is longer than to do lookups. To be honest, I wouldn't know where to start to write a good hash function for a 3D vector to store them in a hash table.
SubjectAuthorViewsPosted
T-Junctions re-visited Travis Cobbs641March 11, 2013 10:38PM
Re: T-Junctions re-visited Tim Gould296March 11, 2013 11:31PM
Re: T-Junctions re-visited Roland Melkert276March 12, 2013 11:17AM
Re: T-Junctions re-visited Ben Supnik284March 12, 2013 11:17AM
Re: T-Junctions re-visited Roland Melkert259March 12, 2013 11:22AM
Re: T-Junctions re-visited Ben Supnik265March 12, 2013 11:32AM
Re: T-Junctions re-visited Roland Melkert257March 12, 2013 11:41AM
Re: T-Junctions re-visited Ben Supnik267March 12, 2013 11:55AM
Re: T-Junctions re-visited Roland Melkert264March 13, 2013 10:08AM
Re: T-Junctions re-visited Travis Cobbs286March 13, 2013 11:27AM
Re: T-Junctions re-visited Allen Smith305March 12, 2013 02:01PM
Re: T-Junctions re-visited Michael Heidemann272March 13, 2013 09:27AM
Re: T-Junctions re-visited Ben Supnik265March 13, 2013 10:37AM
Re: T-Junctions re-visited Tim Gould256March 13, 2013 02:31PM
Re: T-Junctions re-visited Michael Heidemann258March 13, 2013 03:42PM
Re: T-Junctions re-visited Michael Heidemann252March 17, 2013 04:35AM
Re: T-Junctions re-visited Ben Supnik236March 17, 2013 08:43AM
Re: T-Junctions re-visited Michael Heidemann234March 17, 2013 08:59AM
Re: T-Junctions re-visited Ben Supnik243March 17, 2013 09:02AM
Re: T-Junctions re-visited Magnus Forsberg235March 17, 2013 09:15AM
Re: T-Junctions re-visited Travis Cobbs307March 17, 2013 10:09PM
Re: T-Junctions re-visited Ben Supnik264March 18, 2013 07:30AM
Re: T-Junctions re-visited Travis Cobbs270March 18, 2013 10:57AM
Re: T-Junctions re-visited Ben Supnik282March 18, 2013 11:27AM
Re: T-Junctions re-visited Travis Cobbs263March 18, 2013 12:23PM
Re: T-Junctions re-visited Ben Supnik282March 18, 2013 01:41PM
Re: T-Junctions re-visited Roland Melkert290March 18, 2013 02:51PM
Re: T-Junctions re-visited Travis Cobbs260March 18, 2013 02:59PM
Re: T-Junctions re-visited Roland Melkert290March 18, 2013 03:41PM
Re: T-Junctions re-visited Ben Supnik278March 18, 2013 06:09PM
Re: T-Junctions re-visited Roland Melkert279March 19, 2013 11:38AM
Re: T-Junctions re-visited Ben Supnik302March 19, 2013 11:43AM
Re: T-Junctions re-visited Roland Melkert316March 19, 2013 07:07PM
Re: T-Junctions re-visited Travis Cobbs286March 19, 2013 10:13PM
Re: T-Junctions re-visited Tim Gould274March 20, 2013 03:56AM
Re: T-Junctions re-visited Travis Cobbs263March 20, 2013 10:13AM
Re: T-Junctions re-visited Ben Supnik251March 20, 2013 10:23AM
Re: T-Junctions re-visited Travis Cobbs266March 20, 2013 10:29AM
Re: T-Junctions re-visited Travis Cobbs267March 20, 2013 10:26AM
Re: T-Junctions re-visited Ben Supnik244March 20, 2013 11:18AM
Re: T-Junctions re-visited Ben Supnik264March 20, 2013 06:42AM
Re: T-Junctions re-visited Roland Melkert253March 20, 2013 11:36AM
Re: T-Junctions re-visited Philippe Hurbain260March 20, 2013 06:36AM
Re: T-Junctions re-visited Ben Supnik268March 20, 2013 06:58AM
Re: T-Junctions re-visited Allen Smith272March 20, 2013 09:08AM
Re: T-Junctions re-visited Roland Melkert285March 20, 2013 11:35AM
Re: T-Junctions re-visited Ben Supnik669March 20, 2013 11:50AM
Re: T-Junctions re-visited Michael Heidemann283March 18, 2013 03:54PM
Re: T-Junctions re-visited Roland Melkert260March 13, 2013 10:03AM
Re: T-Junctions re-visited Tim Gould239March 13, 2013 03:56PM
Re: T-Junctions re-visited Sergio Reano243March 13, 2013 03:51PM
Re: T-Junctions re-visited Roland Melkert309March 13, 2013 04:36PM
Re: T-Junctions re-visited Tim Gould271March 13, 2013 05:10PM
Re: T-Junctions re-visited Ben Supnik249March 14, 2013 08:17PM
Re: T-Junctions re-visited Tim Gould318March 14, 2013 08:41PM
Re: T-Junctions re-visited Ben Supnik311March 15, 2013 10:56AM
Re: T-Junctions re-visited Roland Melkert265March 15, 2013 11:36AM
Re: T-Junctions re-visited Ben Supnik236March 13, 2013 06:58PM
Re: T-Junctions re-visited Roland Melkert249March 13, 2013 07:27PM
Re: T-Junctions re-visited Ben Supnik234March 13, 2013 07:37PM
Re: T-Junctions re-visited Roland Melkert249March 13, 2013 07:59PM
Re: T-Junctions re-visited Ben Supnik274March 13, 2013 08:18PM
Re: T-Junctions re-visited Travis Cobbs295March 14, 2013 03:23PM
Re: T-Junctions re-visited Roland Melkert301March 14, 2013 03:34PM
Re: T-Junctions re-visited Tim Gould317March 14, 2013 03:41PM
Re: T-Junctions re-visited Roland Melkert283March 15, 2013 11:33AM
Re: T-Junctions re-visited Tim Gould248March 13, 2013 07:43PM
Re: T-Junctions re-visited Roland Melkert245March 13, 2013 08:08PM
Re: T-Junctions re-visited Tim Gould248March 13, 2013 08:18PM
Re: T-Junctions re-visited Ben Supnik308March 14, 2013 08:15PM
Re: T-Junctions re-visited Roland Melkert303March 15, 2013 11:29AM
Re: T-Junctions re-visited Travis Cobbs274March 15, 2013 12:27PM
Re: T-Junctions re-visited Ben Supnik289March 15, 2013 05:08PM
Re: T-Junctions re-visited Travis Cobbs275March 16, 2013 11:29PM
Re: T-Junctions re-visited Ben Supnik231March 17, 2013 08:58AM
Re: T-Junctions re-visited Roland Melkert236March 17, 2013 12:35PM
Re: T-Junctions re-visited Travis Cobbs259March 18, 2013 12:28PM
Re: T-Junctions re-visited Travis Cobbs282March 18, 2013 12:32PM
Re: T-Junctions re-visited Roland Melkert274March 18, 2013 05:00PM
Re: T-Junctions re-visited Travis Cobbs304March 18, 2013 11:05PM
Re: T-Junctions re-visited Roland Melkert329March 19, 2013 11:38AM
Re: T-Junctions re-visited Sergio Reano310March 26, 2013 02:46PM
Re: T-Junctions re-visited Roland Melkert261March 27, 2013 11:19AM
Re: T-Junctions re-visited Sergio Reano312March 27, 2013 01:48PM



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