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    Triangulation and Convex Polygons

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    • pilouP Offline
      pilou
      last edited by

      Can you post an image with result wished ?

      Frenchy Pilou
      Is beautiful that please without concept!
      My Little site :)

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      • thomthomT Offline
        thomthom
        last edited by

        I was thinking one edge from inner to outer was enough - in order to reduce the number of faces.

        But thinking of it more, ultimately everything breaks down to triangles, so if you have a polygonal face in SU - internally it'll be made up of many triangles. The same thing goes for any other software. So converting a face into it's internal triangles doesn't really make the model heavier - in terms of total number of triangles the graphic card needs to draw.

        Thomas Thomassen — SketchUp Monkey & Coding addict
        List of my plugins and link to the CookieWare fund

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        • pilouP Offline
          pilou
          last edited by

          Better to make a retoplogy in 3D party ?

          Frenchy Pilou
          Is beautiful that please without concept!
          My Little site :)

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          • M Offline
            mrapsouthern
            last edited by

            Hi,

            To update my previous post -

            Any 1 face with ANY number of holes can be divided into 2 faces with no holes.

            where the number of required dividing lines is defined by,

            NumDividingLines = NumHoles + 1

            please see the following diagram as illustration.

            http://dl.dropbox.com/u/22511393/tmp3.png

            Alex

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            • gullfoG Offline
              gullfo
              last edited by

              slightly off-topic:
              http://gamma.cs.unc.edu/propagation/main.pdf
              http://sketchucation.com/forums/viewtopic.php?t=36063

              Glenn

              http://www.runnel.com

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              • M Offline
                mrapsouthern
                last edited by

                @gullfo said:

                slightly off-topic:
                http://gamma.cs.unc.edu/propagation/main.pdf
                http://sketchucation.com/forums/viewtopic.php?t=36063

                It is off topic - but I am very familiar with that work - it's quite a coincidence you posted it....

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                • gullfoG Offline
                  gullfo
                  last edited by

                  @mrapsouthern said:

                  http://dl.dropbox.com/u/22511393/tmp3.png

                  does the SU-Catt converter then create the correct output?

                  Glenn

                  http://www.runnel.com

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                  • gullfoG Offline
                    gullfo
                    last edited by

                    @mrapsouthern said:

                    It is off topic - but I am very familiar with that work - it's quite a coincidence you posted it....

                    i'm trying to re-work Jonathan's SU-ABEC to use ABEC 2.0 but it's tough because their model shifted a lot... http://www.jonsh.net/blog/?page_id=197

                    Glenn

                    http://www.runnel.com

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                    • M Offline
                      mrapsouthern
                      last edited by

                      Glenn,

                      Small world. I know Jonathan well also. Have we met?

                      Anyway, Yes, if the faces with holes are partitioned as shown the output of SU2CATT is interpreted correctly.

                      Cheers
                      A.

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                      • M Offline
                        mac1
                        last edited by

                        Will merging vertices help?
                        Your model reduced from 200+ to ~72


                        example_mac1_2.jpg

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                        • M Offline
                          mrapsouthern
                          last edited by

                          Merging vertices looks like it helps for that case. I can't check it for multiple holes though right now. Thanks

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