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    Fluid freehand

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    • thomthomT Offline
      thomthom
      last edited by

      The stylus tool I'd been tinkering with was a means to quickly generate meshes - mainly focused on quads. The idea was that you'd trace an image and build your quads from that. (Or create new topology on top of existing geometry.)

      Stylus.gif

      I'm not sure how easy Box' request would be. At least with what control you have from the SU API. Because the smoothness of the points depend on how quickly you can receive the input. In my stylus I collect points as fast as I receive callbacks. And as you can see it's still somewhat jagged:

      StylusDraw.gif

      Granted, it'll be more jagged the more I do during mouse movement and drawing to the viewport. Maybe it could be improved. But I think that in general, with user input like this you need to interpolate in order to get smooth result.

      I actually had a similar conversation a couple of weeks ago, while talking to some VR developers in a co-working space nearby. They were playing around with VR presentation tool in Unity and had added a tool to do drawing in the VR world. But also there you had the problem of jittery input

      Same thing, if you move fast you got fewer more jagged points, if you move slow you get more points (not necessarily smoother, as your hand create jitters) It all boils down to how quickly you are able to sample input.

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

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      • BoxB Offline
        Box
        last edited by

        Hmm yep, I see the issues involved.
        What about if the freehand line could somehow be converted into one of fredos beziers.
        ie: draw a line as fast or slow as you like but when you stop it makes a smooth curve based on a certain number of control points? more points in the slow section and less in the fast section. or a predetermined number spread over the length of the curve, but smooth.

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        • JQLJ Offline
          JQL
          last edited by

          That would be cool and the bezier aproach would be nice to have.

          I also love the idea of the quad stylus. It looks like some retopology tool I've seen in some software I don't remember anymore. Tracing an image with that and having a quadmesh created seems very useful but I can think of a lot of useful scenarios...

          Maybe one day my architecture will have some motive to get out of the boxed state it's in...

          www.casca.pt
          Visit us on facebook!

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

            @box

            What about Fredo's Smooth Contour in Curvizard?

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

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            • BoxB Offline
              Box
              last edited by

              Yeah Rich I mentioned that in my original post, it works, but I'm trying to get it built in rather than a workaround.

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              • BoxB Offline
                Box
                last edited by

                And I agree with you JQL.

                I can see this sort of touch interface being quite important pretty soon.
                People already avoid mouse and keyboard if they can.
                A well structured Stylus tool would will be invaluable in the near future, in my humble opinion.

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                • pbacotP Offline
                  pbacot
                  last edited by

                  Seems to me this might be effective if you could draw on a surface. So you establish a base framework by drawing on a sphere, plane or other shape to define how your grid begins.

                  MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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                  • BoxB Offline
                    Box
                    last edited by

                    @pbacot said:

                    Seems to me this might be effective if you could draw on a surface. So you establish a base framework by drawing on a sphere, plane or other shape to define how your grid begins.

                    Sounds goood, come on Thomas, SUbD is fantastic, this could be brilliant.

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                    • thomthomT Offline
                      thomthom
                      last edited by

                      @box said:

                      Hmm yep, I see the issues involved.
                      What about if the freehand line could somehow be converted into one of fredos beziers.
                      ie: draw a line as fast or slow as you like but when you stop it makes a smooth curve based on a certain number of control points? more points in the slow section and less in the fast section. or a predetermined number spread over the length of the curve, but smooth.

                      Yup, that should work. Though there is many ways to convert to a curve. I suspect in most cases you want a smooth curve that is as close as possible to the original.

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

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                      • BoxB Offline
                        Box
                        last edited by

                        @thomthom said:

                        I suspect in most cases you want a smooth curve that is as close as possible to the original.

                        That would be very nice.

                        Feel free to bombard me with test .rb's

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                        • JQLJ Offline
                          JQL
                          last edited by

                          @thomthom said:

                          Yup, that should work. Though there is many ways to convert to a curve. I suspect in most cases you want a smooth curve that is as close as possible to the original.

                          Do we really need a curve? I'd love it to be grouped and SUbDeable instead of a curve.

                          A curve in sketchup is very hard to manipulate, however, if you'd find some way to subdivide edges as you do with faces in SUbD...

                          We would be talking big game here! We could go inside the group and simply edit a vertex and the curve would change!

                          After all if you can subdivide faces... it should be way easier with edges and people that follow SUbD logic would easilly adapt to SUbE logic

                          www.casca.pt
                          Visit us on facebook!

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                          • PixeroP Offline
                            Pixero
                            last edited by

                            @thomthom
                            Is there any way of getting hold of your stylus script?
                            Would love to try it.

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                            • D Offline
                              driven
                              last edited by

                              the way it works in Preview.app would be good...

                              in_preview.gif

                              john

                              learn from the mistakes of others, you may not live long enough to make them all yourself...

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