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    [Plugin][$] Curviloft 2.0a - 31 Mar 24 (Loft & Skinning)

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    • charly2008C Offline
      charly2008
      last edited by

      Robert, i think you used a different Spline Method. See images below. The second image shows Junction by Orthogonal Bezier curves.

      Charly


      Unbenannt.JPG


      Junction by Orthogonal Bezier curves

      He who makes no mistakes, makes nothing

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      • charly2008C Offline
        charly2008
        last edited by

        Probably there are many like me. Some features I can not understand completely.


        Unbenannt.JPG

        He who makes no mistakes, makes nothing

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        • fredo6F Offline
          fredo6
          last edited by

          @charly2008 said:

          Probably there are many like me. Some features I can not understand completely.

          Charly,

          There are many ways to do Loft, and this is why there are many options (and there should probably be more).

          1. The Spline methods on the left side:
          • one if simply to link contours by straight lines
          • the second is a junction by Bezier curves with mean slope. In many cases where contours are aligned this is almost a straight line too. But in other situations, it gives a curved shape.
          1. The two icons in the middle are for Cubic Bezier and Catmull Splines. In most cases they give a very similar shape, though Cubic Bezier is usually nicer in the rounding. Catmull, in contrast, is more similar to what you get in Subdivide & Smooth methods.

          2. The two icons on the right side of the Spline method palette: These 2 methods only apply when you have more than 2 contours. The principle is that they link the two extreme contours by B-Spline or F-Spline, using the intermediate ones as a guide for shaping. The generated surface passes through the extreme contours but not thorugh the intermediate ones

          3. The vertex matching palette is about how to match vertices from one contour to the next one. I am still experimenting and will try to improve in this area. The matching can be based on:

          • match vertex to vertex when there are the same numbers (first default)
          • match along the curvilinear distance (second default)
          • match along Cubic or Bezier profiles. The principle is that the spacing between matching vertices is function of the curvature of the contour. I found theoritical cases where this is the correct solution, but in the real world, this may be another story.
          1. The geometry palette is used for 2 purposes currently:
          • generate only the junctions as lines (i.e. no surface)
          • make the junction as SU curves. This allows deforming the shape in a continuous way by moving the contours.
            I plan to add the possibility to construct any part of the mesh (i.e. triangles, quads, junctions only, etc....)

          The best is to play with the options on a given model and see what it gives.

          I agree that this is not straightforward, but keep in mind that there is unfortunately not a single solution to all lofting situations.

          Fredo

          PS: by the way, extremely nice models you designed!! 😒

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          • charly2008C Offline
            charly2008
            last edited by

            Hi Fredo,

            thank you for your detailed explanation. I'll continue to experiment with getting to know all the options. Your explanation is certainly helpful to all.

            Charly

            He who makes no mistakes, makes nothing

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            • thomthomT Offline
              thomthom
              last edited by

              I'm getting some errors:

              CurviError.png

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

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              • fredo6F Offline
                fredo6
                last edited by

                @thomthom said:

                I'm getting some errors:

                [attachment=0:21a7yfyo]<!-- ia0 -->CurviError.png<!-- ia0 -->[/attachment:21a7yfyo]

                Tom,

                Thanks for signaling this problem.
                Would you mind to post the model.

                Fredo

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                • thomthomT Offline
                  thomthom
                  last edited by

                  @unknownuser said:

                  @thomthom said:

                  I'm getting some errors:

                  [attachment=0:1k817cpu]<!-- ia0 -->CurviError.png<!-- ia0 -->[/attachment:1k817cpu]

                  Tom,

                  Thanks for signaling this problem.
                  Would you mind to post the model.

                  Fredo

                  It's a wee heavy - but I can post the extracted polylines.

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

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                  • thomthomT Offline
                    thomthom
                    last edited by

                    Here it is:


                    CurviError.skp

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

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                    • charly2008C Offline
                      charly2008
                      last edited by

                      Hi Thomas,

                      i welded each line and below the result in Sketchup 8.

                      Charly


                      Unbenannt.JPG

                      He who makes no mistakes, makes nothing

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                      • thomthomT Offline
                        thomthom
                        last edited by

                        ?

                        You have to weld the curves for loft to work?

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

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                        • charly2008C Offline
                          charly2008
                          last edited by

                          Yes this is my experience, otherwise you will have multiple lines.

                          He who makes no mistakes, makes nothing

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                          • thomthomT Offline
                            thomthom
                            last edited by

                            Even more odd - that unwelded needs more distance...?

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

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                            • charly2008C Offline
                              charly2008
                              last edited by

                              I must correct myself. In your example it works without welding but only if the two lines have a little more distance. Otherwise I get the same error messages. I previously thought the lines would have to be welded. now I've found that it is not so. Sorry, I am ashamed. I was back to cheeky.

                              Charly

                              He who makes no mistakes, makes nothing

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                              • R Offline
                                robert111
                                last edited by

                                charly how to modeling this exemple plz can you make tuto plz, il love yours objet with this plugin


                                SCF%20Crown3.jpg

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                                • R Offline
                                  robert111
                                  last edited by

                                  and for this exemple too


                                  Ring1.jpg

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                                  • charly2008C Offline
                                    charly2008
                                    last edited by

                                    To all who are interested,

                                    My mistake is based on the plugin Extrude Edges by Loft. Here welded edges or corners are required. I realized only now with Curviloft only just a double-click on the edges is necessary to complete the selection. Without the post from Thomas, I would have thought about it.

                                    I could have saved myself a lot of time. You get used sometimes to a particular workflow or action and thought no more about it.

                                    Charly

                                    He who makes no mistakes, makes nothing

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                                    • jeff hammondJ Offline
                                      jeff hammond
                                      last edited by

                                      @charly2008 said:

                                      I realized only now with Curviloft only just a double-click on the edges is necessary to complete the selection.

                                      or, adjust the max edge angle then single click (though in thom's example, the filter needs to be around 130 deg.)

                                      screen 4.jpg

                                      [this feature comes in very handy in certain instances]
                                      [use the tab key for even more filter options]

                                      dotdotdot

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                                      • charly2008C Offline
                                        charly2008
                                        last edited by

                                        Thanks Jeff for your tip.

                                        He who makes no mistakes, makes nothing

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                                        • charly2008C Offline
                                          charly2008
                                          last edited by

                                          Hi Robert111,

                                          i will place the tutorial here:

                                          http://forums.sketchucation.com/viewtopic.php?f=18&t=29374

                                          Charly

                                          He who makes no mistakes, makes nothing

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                                          • S Offline
                                            SpookyChick1013
                                            last edited by

                                            Hi there Fredo! I've had Curviloft in my plugin folder for quite a while, and only recently figured out how to make it work. (To Whom It May Concern; Thank you all for your tutorials!) Curviloft is an awesome plugin and extremely useful. Once I figured out how to use it, I have had no problems until just recently, (say, a week ago?) when I started getting the following error message:Curvi Load Error.PNG

                                            I think we can safely ignore the matchbox plugin error, as MatchBox is not even installed and has not been for over 18 months (it would not play nice with other plugins so I vaped it...)and Curvi worked fine until after i downloaded and installed the latest version( Curviloft 1.0c, and LibFredo6 35c.) Curvi still works ok for the most part but I have started to get strange behavior from the orthogonal curves setting. As you can see this happened with both of the Orthogonal settingsInterestingly, this did not start until last night. I figured a work-around,What I wanted and got after a work around but I was curious if the reported errors had something to do with it.

                                            Once again, thank you so much for all of your hard work and genius! >hugz'n'cookiez, because I don't have any beer today<

                                            https://kuromatsudriveyards.com

                                            Fo-su to tomo ni aran koto o...

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