SEgmentation fault with STL Doctor

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2013-07-09
2013-07-09
  • Victor Major
    Victor Major
    2013-07-09

    I am attempting to mesh CAD origin geometry which was exported as STL. The STL file has multiple issues. Terminal shows this on STL file open

    ...
    ERROR: TRIG 113468 has 2 neighbours!!!!
    ERROR: TRIG 113469 has 2 neighbours!!!!
    ERROR: ++++++++++++++++++++

    ERROR: 3860 wrong oriented neighbourtriangles found!
    ERROR: try to correct it (with stldoctor)!
    ERROR: ++++++++++++++++++++

    So I attempt to correct the orientations with STL doctor by choosing "select triangle" and in Edit Topology I then choose "orient after selected trig"

    This generates a segmentation fault. I get the segmentation fault both in Netgen 4.9.13 and the new Netgen 5.0.0

    touch triangle 1991, local node 1 (=1312)
    Segmentation fault (core dumped)

    I am using Ubuntu 12.04 x86_64 and it is up to date. Any advice is welcome.