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Re: T-Junctions re-visited
March 14, 2013 03:41PM
This may be a result of an oversight I made. For small triangles the algorithm might find a false hit. Try replacing
# O (N_Edges N_Points)
for I,J in Edges
  for K in Points
    DIJ=Dist(P(I),P(J))
    DIK=Dist(P(I),P(K))
    DJK=Dist(P(I),P(K))
    if (abs(DIJ-(DIK+DJK))<TOL)
      # K is on the line between I & J
      PushLineTrio(I,J;K)
    endif
  endfor
endfor
by (here RTOL should be something like 1e-4, adjust to taste)
# O (N_Edges N_Points)
for I,J in Edges
  for K in Points
    DIJ=Dist(P(I),P(J))
    DIK=Dist(P(I),P(K))
    DJK=Dist(P(I),P(K))
    if ((abs(DIJ/(DIK+DJK)-1.0)<RTOL) && (abs(DIJ-(DIK+DJK))<TOL))# CHANGED TO INCLUDE A RELATIVE CHECK TOO
      # K is on the line between I & J
      PushLineTrio(I,J;K)
    endif
  endfor
endfor


Edited 4 time(s). Last edit at 2013-03-14 03:44PM by Tim Gould.
SubjectAuthorViewsPosted
T-Junctions re-visited Travis Cobbs583March 11, 2013 10:38PM
Re: T-Junctions re-visited Tim Gould260March 11, 2013 11:31PM
Re: T-Junctions re-visited Roland Melkert239March 12, 2013 11:17AM
Re: T-Junctions re-visited Ben Supnik243March 12, 2013 11:17AM
Re: T-Junctions re-visited Roland Melkert234March 12, 2013 11:22AM
Re: T-Junctions re-visited Ben Supnik232March 12, 2013 11:32AM
Re: T-Junctions re-visited Roland Melkert220March 12, 2013 11:41AM
Re: T-Junctions re-visited Ben Supnik235March 12, 2013 11:55AM
Re: T-Junctions re-visited Roland Melkert229March 13, 2013 10:08AM
Re: T-Junctions re-visited Travis Cobbs251March 13, 2013 11:27AM
Re: T-Junctions re-visited Allen Smith276March 12, 2013 02:01PM
Re: T-Junctions re-visited Michael Heidemann238March 13, 2013 09:27AM
Re: T-Junctions re-visited Ben Supnik235March 13, 2013 10:37AM
Re: T-Junctions re-visited Tim Gould229March 13, 2013 02:31PM
Re: T-Junctions re-visited Michael Heidemann226March 13, 2013 03:42PM
Re: T-Junctions re-visited Michael Heidemann215March 17, 2013 04:35AM
Re: T-Junctions re-visited Ben Supnik202March 17, 2013 08:43AM
Re: T-Junctions re-visited Michael Heidemann201March 17, 2013 08:59AM
Re: T-Junctions re-visited Ben Supnik211March 17, 2013 09:02AM
Re: T-Junctions re-visited Magnus Forsberg206March 17, 2013 09:15AM
Re: T-Junctions re-visited Travis Cobbs233March 17, 2013 10:09PM
Re: T-Junctions re-visited Ben Supnik232March 18, 2013 07:30AM
Re: T-Junctions re-visited Travis Cobbs238March 18, 2013 10:57AM
Re: T-Junctions re-visited Ben Supnik243March 18, 2013 11:27AM
Re: T-Junctions re-visited Travis Cobbs233March 18, 2013 12:23PM
Re: T-Junctions re-visited Ben Supnik248March 18, 2013 01:41PM
Re: T-Junctions re-visited Roland Melkert254March 18, 2013 02:51PM
Re: T-Junctions re-visited Travis Cobbs229March 18, 2013 02:59PM
Re: T-Junctions re-visited Roland Melkert235March 18, 2013 03:41PM
Re: T-Junctions re-visited Ben Supnik245March 18, 2013 06:09PM
Re: T-Junctions re-visited Roland Melkert245March 19, 2013 11:38AM
Re: T-Junctions re-visited Ben Supnik255March 19, 2013 11:43AM
Re: T-Junctions re-visited Roland Melkert283March 19, 2013 07:07PM
Re: T-Junctions re-visited Travis Cobbs249March 19, 2013 10:13PM
Re: T-Junctions re-visited Tim Gould242March 20, 2013 03:56AM
Re: T-Junctions re-visited Travis Cobbs225March 20, 2013 10:13AM
Re: T-Junctions re-visited Ben Supnik214March 20, 2013 10:23AM
Re: T-Junctions re-visited Travis Cobbs229March 20, 2013 10:29AM
Re: T-Junctions re-visited Travis Cobbs225March 20, 2013 10:26AM
Re: T-Junctions re-visited Ben Supnik210March 20, 2013 11:18AM
Re: T-Junctions re-visited Ben Supnik225March 20, 2013 06:42AM
Re: T-Junctions re-visited Roland Melkert230March 20, 2013 11:36AM
Re: T-Junctions re-visited Philippe Hurbain233March 20, 2013 06:36AM
Re: T-Junctions re-visited Ben Supnik231March 20, 2013 06:58AM
Re: T-Junctions re-visited Allen Smith234March 20, 2013 09:08AM
Re: T-Junctions re-visited Roland Melkert247March 20, 2013 11:35AM
Re: T-Junctions re-visited Ben Supnik613March 20, 2013 11:50AM
Re: T-Junctions re-visited Michael Heidemann248March 18, 2013 03:54PM
Re: T-Junctions re-visited Roland Melkert232March 13, 2013 10:03AM
Re: T-Junctions re-visited Tim Gould210March 13, 2013 03:56PM
Re: T-Junctions re-visited Sergio Reano214March 13, 2013 03:51PM
Re: T-Junctions re-visited Roland Melkert274March 13, 2013 04:36PM
Re: T-Junctions re-visited Tim Gould232March 13, 2013 05:10PM
Re: T-Junctions re-visited Ben Supnik220March 14, 2013 08:17PM
Re: T-Junctions re-visited Tim Gould274March 14, 2013 08:41PM
Re: T-Junctions re-visited Ben Supnik273March 15, 2013 10:56AM
Re: T-Junctions re-visited Roland Melkert232March 15, 2013 11:36AM
Re: T-Junctions re-visited Ben Supnik212March 13, 2013 06:58PM
Re: T-Junctions re-visited Roland Melkert223March 13, 2013 07:27PM
Re: T-Junctions re-visited Ben Supnik198March 13, 2013 07:37PM
Re: T-Junctions re-visited Roland Melkert217March 13, 2013 07:59PM
Re: T-Junctions re-visited Ben Supnik240March 13, 2013 08:18PM
Re: T-Junctions re-visited Travis Cobbs261March 14, 2013 03:23PM
Re: T-Junctions re-visited Roland Melkert270March 14, 2013 03:34PM
Re: T-Junctions re-visited Tim Gould283March 14, 2013 03:41PM
Re: T-Junctions re-visited Roland Melkert241March 15, 2013 11:33AM
Re: T-Junctions re-visited Tim Gould201March 13, 2013 07:43PM
Re: T-Junctions re-visited Roland Melkert217March 13, 2013 08:08PM
Re: T-Junctions re-visited Tim Gould214March 13, 2013 08:18PM
Re: T-Junctions re-visited Ben Supnik276March 14, 2013 08:15PM
Re: T-Junctions re-visited Roland Melkert264March 15, 2013 11:29AM
Re: T-Junctions re-visited Travis Cobbs237March 15, 2013 12:27PM
Re: T-Junctions re-visited Ben Supnik251March 15, 2013 05:08PM
Re: T-Junctions re-visited Travis Cobbs237March 16, 2013 11:29PM
Re: T-Junctions re-visited Ben Supnik202March 17, 2013 08:58AM
Re: T-Junctions re-visited Roland Melkert208March 17, 2013 12:35PM
Re: T-Junctions re-visited Travis Cobbs229March 18, 2013 12:28PM
Re: T-Junctions re-visited Travis Cobbs246March 18, 2013 12:32PM
Re: T-Junctions re-visited Roland Melkert242March 18, 2013 05:00PM
Re: T-Junctions re-visited Travis Cobbs265March 18, 2013 11:05PM
Re: T-Junctions re-visited Roland Melkert284March 19, 2013 11:38AM
Re: T-Junctions re-visited Sergio Reano278March 26, 2013 02:46PM
Re: T-Junctions re-visited Roland Melkert228March 27, 2013 11:19AM
Re: T-Junctions re-visited Sergio Reano279March 27, 2013 01:48PM



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