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Re: Question about edges
avatarMarch 09, 2013 11:11AM
Thanks, so aside from the decorative ones do normal edges always follow triangle and quad sides.

For example could something like this happen in the current library

x~~~~0~~~~~~~~~0~~~~~x
      \       /
       \     /
        \   /
         \ /
          0
This being a single type 2 line and a single type 3 line (there will be more triangles in real parts off course this is an 'zoom' if you like)

Or will it allay be guaranteed to be like:

x~~~~X~~~~~~~~~X~~~~~x
      \       /
       \     /
        \   /
         \ /
          0
Being 3 type 2 lines and a single triangle.

The reason I would like to know this is for the smoothing function I'm working on. It would be very helpful to assume any two triangles can be split by a edge line using the same shared points of the triangle.

I need this information to calculate normals for the triangle vertices. If I can not assume this the alternative would be to do line point intersection tests for all triangle and line data. Which will be much much much slower, and as a result I need to seek an alternative approach.

ps: I'm looking into this at the moment completely unhindered by knowledge of how apps like LDView handle this, just to see if I can come up with something on my own. :)
SubjectAuthorViewsPosted
Question about edges Roland Melkert552March 08, 2013 12:41PM
Re: Question about edges Philippe Hurbain242March 08, 2013 11:07PM
Re: Question about edges Roland Melkert248March 09, 2013 11:11AM
Re: Question about edges Philippe Hurbain237March 09, 2013 11:25AM
Re: Question about edges Roland Melkert252March 09, 2013 12:23PM
Re: Question about edges Ben Supnik240March 09, 2013 08:18PM
Re: Question about edges Philippe Hurbain242March 09, 2013 10:53PM
Re: Question about edges Roland Melkert289March 10, 2013 11:35AM
Re: Question about edges Philippe Hurbain264March 10, 2013 12:00PM
Re: Question about edges Ben Supnik259March 10, 2013 04:11PM
Re: Question about edges Roland Melkert267March 10, 2013 04:32PM
Re: Question about edges Ben Supnik269March 10, 2013 07:31PM
Re: Question about edges Travis Cobbs251March 10, 2013 10:19PM
Re: Question about edges Ben Supnik240March 10, 2013 11:20PM
Re: Question about edges Tim Gould307March 10, 2013 11:40PM
Re: Question about edges Ben Supnik244March 11, 2013 11:52AM
Re: Question about edges Roland Melkert239March 11, 2013 01:31PM
Re: Question about edges Tim Gould248March 11, 2013 01:58PM
Re: Question about edges Roland Melkert237March 11, 2013 04:48PM
Re: Question about edges Tim Gould263March 11, 2013 04:57PM
Re: Question about edges Roland Melkert225March 11, 2013 06:02PM
Re: Question about edges Tim Gould238March 11, 2013 06:24PM
Re: Question about edges Travis Cobbs252March 11, 2013 10:12PM
Re: Question about edges Tim Gould260March 11, 2013 02:07PM
Re: Question about edges Ben Supnik289March 22, 2013 03:33PM
Re: Question about edges Tim Gould278March 22, 2013 03:44PM
Re: Question about edges Ben Supnik283March 22, 2013 04:48PM
Re: Question about edges Philippe Hurbain334March 23, 2013 01:49AM
Re: Question about edges Travis Cobbs233March 11, 2013 11:20AM
Re: Question about edges Roland Melkert255March 11, 2013 01:50PM
Re: Question about edges Roland Melkert216March 12, 2013 11:15AM
Re: Question about edges Ben Supnik238March 12, 2013 11:24AM
Re: Question about edges Roland Melkert224March 12, 2013 11:37AM
Re: Question about edges Travis Cobbs221March 09, 2013 10:57PM



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