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    NURBS plugin version 0.1

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    • Rich O BrienR Offline
      Rich O Brien Moderator
      last edited by

      Are you sure about removing this?

      Download the free D'oh Book for SketchUp πŸ“–

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      • Dan RathbunD Offline
        Dan Rathbun
        last edited by

        I don't mind... the code was way before alpha!

        Just a rudimentary example of concept.

        Users would be better off using one of the mesh / surface packages from the Plugins forum.

        I'm not here much anymore.

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        • M Offline
          Mr.K.1
          last edited by

          Exactly, I don't want other users stumbling upon my poor attempts at reinventing water when there are so many well done plugins available.

          If I ever get back to finishing this I'll post a new thread, but right now this thread is of no value and should be deleted.

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          • fredo6F Offline
            fredo6
            last edited by

            Dear Mr.K

            If you have a C/C++ library containing Surface Nurbs functionality, I am interested to have a look and possibly build the SU GUI around it.

            As you noticed, Curviloft (or ExtrudeEdgeByxxx by TIG) are not really Nurbs modelers, but use splines and bezier curves to generate surfaces based on coons, stretching and averaging. Real surfacic Nurbs are more powerful, but for performance reasons the calculations must be done in C. The closest I know to be a real surfacic modeler is

            • BezierPatch by Victor Liu
            • BezierSurface by ThomThom
            • TGI3d (probably based on true Nurbs)
            • Artisan by Whaat
            • Soap, Skin & Bubble
            • FerrariSketch
            • maybe others that I am not aware of

            If your package includes Nurbs curves only, then it is more something that is today in BezierSpline and that I will definitely include in a more advanced form in the refresh of this plugin.

            Thanks

            Fredo

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            • M Offline
              Mr.K.1
              last edited by

              Well I should probably explain that I am not all that knowledgeable in the Spline area, and have no idea if the code I have is real surfacic Nurbs, or what the differences are.

              All I really did was shoehorn a C++ NURBS example into a DLL example and made a Ruby interface for it.
              And it really shows as I was fruitlessly trying to fix the density error(the surface vertices stretch out at the start and bunches up at the end), suppose to be controllable in the U,V knot vectors but they are built as specified by formulas and any attempt at correction makes it worse.

              Maybe you have some more insight on this?

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              • EarthMoverE Offline
                EarthMover
                last edited by

                @unknownuser said:

                Dear Mr.K

                If you have a C/C++ library containing Surface Nurbs functionality, I am interested to have a look and possibly build the SU GUI around it.

                Thanks

                Fredo

                πŸ‘ πŸ‘ πŸ‘

                3D Artist at Clearstory 3D Imaging
                Guide Tool at Winning With Sketchup
                Content Creator at Skapeup

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                • Dan RathbunD Offline
                  Dan Rathbun
                  last edited by

                  @unknownuser said:

                  Exactly, I don't want other users stumbling upon my poor attempts at reinventing water when there are so many well done plugins available.

                  If I ever get back to finishing this I'll post a new thread, but right now this thread is of no value and should be deleted.

                  YOU can edit your first post, and remove the file attachments. Put a note to PM you if they are coders and wish to see the latest version.

                  People are still d/l'ing it. (Some end up leaving beta scripts in their Plugins folder, forever.)

                  I'm not here much anymore.

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                  • thomthomT Offline
                    thomthom
                    last edited by

                    @unknownuser said:

                    How is thomthom doing the Bezier Surface? Ruby only?

                    Currently in Ruby. But once I get things working and I can start profiling I'll probably move some stuff into a C Extension to do the main bulk of the bezier calculations etc.

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

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