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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 Cobbs1111March 11, 2013 10:38PM
Re: T-Junctions re-visited Tim Gould586March 11, 2013 11:31PM
Re: T-Junctions re-visited Roland Melkert488March 12, 2013 11:17AM
Re: T-Junctions re-visited Ben Supnik523March 12, 2013 11:17AM
Re: T-Junctions re-visited Roland Melkert498March 12, 2013 11:22AM
Re: T-Junctions re-visited Ben Supnik480March 12, 2013 11:32AM
Re: T-Junctions re-visited Roland Melkert474March 12, 2013 11:41AM
Re: T-Junctions re-visited Ben Supnik475March 12, 2013 11:55AM
Re: T-Junctions re-visited Roland Melkert483March 13, 2013 10:08AM
Re: T-Junctions re-visited Travis Cobbs505March 13, 2013 11:27AM
Re: T-Junctions re-visited Allen Smith503March 12, 2013 02:01PM
Re: T-Junctions re-visited Michael Heidemann498March 13, 2013 09:27AM
Re: T-Junctions re-visited Ben Supnik475March 13, 2013 10:37AM
Re: T-Junctions re-visited Tim Gould483March 13, 2013 02:31PM
Re: T-Junctions re-visited Michael Heidemann466March 13, 2013 03:42PM
Re: T-Junctions re-visited Michael Heidemann493March 17, 2013 04:35AM
Re: T-Junctions re-visited Ben Supnik431March 17, 2013 08:43AM
Re: T-Junctions re-visited Michael Heidemann438March 17, 2013 08:59AM
Re: T-Junctions re-visited Ben Supnik413March 17, 2013 09:02AM
Re: T-Junctions re-visited Magnus Forsberg448March 17, 2013 09:15AM
Re: T-Junctions re-visited Travis Cobbs508March 17, 2013 10:09PM
Re: T-Junctions re-visited Ben Supnik492March 18, 2013 07:30AM
Re: T-Junctions re-visited Travis Cobbs492March 18, 2013 10:57AM
Re: T-Junctions re-visited Ben Supnik485March 18, 2013 11:27AM
Re: T-Junctions re-visited Travis Cobbs470March 18, 2013 12:23PM
Re: T-Junctions re-visited Ben Supnik563March 18, 2013 01:41PM
Re: T-Junctions re-visited Roland Melkert560March 18, 2013 02:51PM
Re: T-Junctions re-visited Travis Cobbs547March 18, 2013 02:59PM
Re: T-Junctions re-visited Roland Melkert600March 18, 2013 03:41PM
Re: T-Junctions re-visited Ben Supnik602March 18, 2013 06:09PM
Re: T-Junctions re-visited Roland Melkert538March 19, 2013 11:38AM
Re: T-Junctions re-visited Ben Supnik533March 19, 2013 11:43AM
Re: T-Junctions re-visited Roland Melkert568March 19, 2013 07:07PM
Re: T-Junctions re-visited Travis Cobbs561March 19, 2013 10:13PM
Re: T-Junctions re-visited Tim Gould555March 20, 2013 03:56AM
Re: T-Junctions re-visited Travis Cobbs515March 20, 2013 10:13AM
Re: T-Junctions re-visited Ben Supnik523March 20, 2013 10:23AM
Re: T-Junctions re-visited Travis Cobbs562March 20, 2013 10:29AM
Re: T-Junctions re-visited Travis Cobbs507March 20, 2013 10:26AM
Re: T-Junctions re-visited Ben Supnik483March 20, 2013 11:18AM
Re: T-Junctions re-visited Ben Supnik493March 20, 2013 06:42AM
Re: T-Junctions re-visited Roland Melkert482March 20, 2013 11:36AM
Re: T-Junctions re-visited Philippe Hurbain506March 20, 2013 06:36AM
Re: T-Junctions re-visited Ben Supnik516March 20, 2013 06:58AM
Re: T-Junctions re-visited Allen Smith576March 20, 2013 09:08AM
Re: T-Junctions re-visited Roland Melkert648March 20, 2013 11:35AM
Re: T-Junctions re-visited Ben Supnik1058March 20, 2013 11:50AM
Re: T-Junctions re-visited Michael Heidemann562March 18, 2013 03:54PM
Re: T-Junctions re-visited Roland Melkert480March 13, 2013 10:03AM
Re: T-Junctions re-visited Tim Gould439March 13, 2013 03:56PM
Re: T-Junctions re-visited Sergio Reano435March 13, 2013 03:51PM
Re: T-Junctions re-visited Roland Melkert514March 13, 2013 04:36PM
Re: T-Junctions re-visited Tim Gould454March 13, 2013 05:10PM
Re: T-Junctions re-visited Ben Supnik553March 14, 2013 08:17PM
Re: T-Junctions re-visited Tim Gould581March 14, 2013 08:41PM
Re: T-Junctions re-visited Ben Supnik520March 15, 2013 10:56AM
Re: T-Junctions re-visited Roland Melkert494March 15, 2013 11:36AM
Re: T-Junctions re-visited Ben Supnik417March 13, 2013 06:58PM
Re: T-Junctions re-visited Roland Melkert434March 13, 2013 07:27PM
Re: T-Junctions re-visited Ben Supnik419March 13, 2013 07:37PM
Re: T-Junctions re-visited Roland Melkert490March 13, 2013 07:59PM
Re: T-Junctions re-visited Ben Supnik493March 13, 2013 08:18PM
Re: T-Junctions re-visited Travis Cobbs588March 14, 2013 03:23PM
Re: T-Junctions re-visited Roland Melkert592March 14, 2013 03:34PM
Re: T-Junctions re-visited Tim Gould567March 14, 2013 03:41PM
Re: T-Junctions re-visited Roland Melkert539March 15, 2013 11:33AM
Re: T-Junctions re-visited Tim Gould469March 13, 2013 07:43PM
Re: T-Junctions re-visited Roland Melkert483March 13, 2013 08:08PM
Re: T-Junctions re-visited Tim Gould505March 13, 2013 08:18PM
Re: T-Junctions re-visited Ben Supnik588March 14, 2013 08:15PM
Re: T-Junctions re-visited Roland Melkert559March 15, 2013 11:29AM
Re: T-Junctions re-visited Travis Cobbs505March 15, 2013 12:27PM
Re: T-Junctions re-visited Ben Supnik496March 15, 2013 05:08PM
Re: T-Junctions re-visited Travis Cobbs520March 16, 2013 11:29PM
Re: T-Junctions re-visited Ben Supnik443March 17, 2013 08:58AM
Re: T-Junctions re-visited Roland Melkert425March 17, 2013 12:35PM
Re: T-Junctions re-visited Travis Cobbs460March 18, 2013 12:28PM
Re: T-Junctions re-visited Travis Cobbs583March 18, 2013 12:32PM
Re: T-Junctions re-visited Roland Melkert527March 18, 2013 05:00PM
Re: T-Junctions re-visited Travis Cobbs571March 18, 2013 11:05PM
Re: T-Junctions re-visited Roland Melkert632March 19, 2013 11:38AM
Re: T-Junctions re-visited Sergio Reano554March 26, 2013 02:46PM
Re: T-Junctions re-visited Roland Melkert468March 27, 2013 11:19AM
Re: T-Junctions re-visited Sergio Reano569March 27, 2013 01:48PM



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