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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 Cobbs843March 11, 2013 10:38PM
Re: T-Junctions re-visited Tim Gould443March 11, 2013 11:31PM
Re: T-Junctions re-visited Roland Melkert397March 12, 2013 11:17AM
Re: T-Junctions re-visited Ben Supnik413March 12, 2013 11:17AM
Re: T-Junctions re-visited Roland Melkert384March 12, 2013 11:22AM
Re: T-Junctions re-visited Ben Supnik368March 12, 2013 11:32AM
Re: T-Junctions re-visited Roland Melkert362March 12, 2013 11:41AM
Re: T-Junctions re-visited Ben Supnik369March 12, 2013 11:55AM
Re: T-Junctions re-visited Roland Melkert372March 13, 2013 10:08AM
Re: T-Junctions re-visited Travis Cobbs395March 13, 2013 11:27AM
Re: T-Junctions re-visited Allen Smith402March 12, 2013 02:01PM
Re: T-Junctions re-visited Michael Heidemann386March 13, 2013 09:27AM
Re: T-Junctions re-visited Ben Supnik371March 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 Supnik333March 17, 2013 08:43AM
Re: T-Junctions re-visited Michael Heidemann330March 17, 2013 08:59AM
Re: T-Junctions re-visited Ben Supnik321March 17, 2013 09:02AM
Re: T-Junctions re-visited Magnus Forsberg344March 17, 2013 09:15AM
Re: T-Junctions re-visited Travis Cobbs401March 17, 2013 10:09PM
Re: T-Junctions re-visited Ben Supnik367March 18, 2013 07:30AM
Re: T-Junctions re-visited Travis Cobbs363March 18, 2013 10:57AM
Re: T-Junctions re-visited Ben Supnik380March 18, 2013 11:27AM
Re: T-Junctions re-visited Travis Cobbs357March 18, 2013 12:23PM
Re: T-Junctions re-visited Ben Supnik407March 18, 2013 01:41PM
Re: T-Junctions re-visited Roland Melkert424March 18, 2013 02:51PM
Re: T-Junctions re-visited Travis Cobbs395March 18, 2013 02:59PM
Re: T-Junctions re-visited Roland Melkert459March 18, 2013 03:41PM
Re: T-Junctions re-visited Ben Supnik442March 18, 2013 06:09PM
Re: T-Junctions re-visited Roland Melkert394March 19, 2013 11:38AM
Re: T-Junctions re-visited Ben Supnik410March 19, 2013 11:43AM
Re: T-Junctions re-visited Roland Melkert435March 19, 2013 07:07PM
Re: T-Junctions re-visited Travis Cobbs404March 19, 2013 10:13PM
Re: T-Junctions re-visited Tim Gould410March 20, 2013 03:56AM
Re: T-Junctions re-visited Travis Cobbs374March 20, 2013 10:13AM
Re: T-Junctions re-visited Ben Supnik370March 20, 2013 10:23AM
Re: T-Junctions re-visited Travis Cobbs403March 20, 2013 10:29AM
Re: T-Junctions re-visited Travis Cobbs377March 20, 2013 10:26AM
Re: T-Junctions re-visited Ben Supnik358March 20, 2013 11:18AM
Re: T-Junctions re-visited Ben Supnik383March 20, 2013 06:42AM
Re: T-Junctions re-visited Roland Melkert360March 20, 2013 11:36AM
Re: T-Junctions re-visited Philippe Hurbain391March 20, 2013 06:36AM
Re: T-Junctions re-visited Ben Supnik426March 20, 2013 06:58AM
Re: T-Junctions re-visited Allen Smith421March 20, 2013 09:08AM
Re: T-Junctions re-visited Roland Melkert466March 20, 2013 11:35AM
Re: T-Junctions re-visited Ben Supnik894March 20, 2013 11:50AM
Re: T-Junctions re-visited Michael Heidemann431March 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 Reano330March 13, 2013 03:51PM
Re: T-Junctions re-visited Roland Melkert406March 13, 2013 04:36PM
Re: T-Junctions re-visited Tim Gould357March 13, 2013 05:10PM
Re: T-Junctions re-visited Ben Supnik399March 14, 2013 08:17PM
Re: T-Junctions re-visited Tim Gould452March 14, 2013 08:41PM
Re: T-Junctions re-visited Ben Supnik425March 15, 2013 10:56AM
Re: T-Junctions re-visited Roland Melkert376March 15, 2013 11:36AM
Re: T-Junctions re-visited Ben Supnik326March 13, 2013 06:58PM
Re: T-Junctions re-visited Roland Melkert340March 13, 2013 07:27PM
Re: T-Junctions re-visited Ben Supnik331March 13, 2013 07:37PM
Re: T-Junctions re-visited Roland Melkert368March 13, 2013 07:59PM
Re: T-Junctions re-visited Ben Supnik373March 13, 2013 08:18PM
Re: T-Junctions re-visited Travis Cobbs439March 14, 2013 03:23PM
Re: T-Junctions re-visited Roland Melkert450March 14, 2013 03:34PM
Re: T-Junctions re-visited Tim Gould439March 14, 2013 03:41PM
Re: T-Junctions re-visited Roland Melkert425March 15, 2013 11:33AM
Re: T-Junctions re-visited Tim Gould370March 13, 2013 07:43PM
Re: T-Junctions re-visited Roland Melkert352March 13, 2013 08:08PM
Re: T-Junctions re-visited Tim Gould368March 13, 2013 08:18PM
Re: T-Junctions re-visited Ben Supnik441March 14, 2013 08:15PM
Re: T-Junctions re-visited Roland Melkert422March 15, 2013 11:29AM
Re: T-Junctions re-visited Travis Cobbs399March 15, 2013 12:27PM
Re: T-Junctions re-visited Ben Supnik388March 15, 2013 05:08PM
Re: T-Junctions re-visited Travis Cobbs404March 16, 2013 11:29PM
Re: T-Junctions re-visited Ben Supnik318March 17, 2013 08:58AM
Re: T-Junctions re-visited Roland Melkert319March 17, 2013 12:35PM
Re: T-Junctions re-visited Travis Cobbs362March 18, 2013 12:28PM
Re: T-Junctions re-visited Travis Cobbs439March 18, 2013 12:32PM
Re: T-Junctions re-visited Roland Melkert398March 18, 2013 05:00PM
Re: T-Junctions re-visited Travis Cobbs425March 18, 2013 11:05PM
Re: T-Junctions re-visited Roland Melkert481March 19, 2013 11:38AM
Re: T-Junctions re-visited Sergio Reano428March 26, 2013 02:46PM
Re: T-Junctions re-visited Roland Melkert358March 27, 2013 11:19AM
Re: T-Junctions re-visited Sergio Reano453March 27, 2013 01:48PM



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