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    [Plugin] BezierSpline - v2.2a - 22 Apr 21

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    • M Offline
      mimarhamza
      last edited by

      Hi Fredo This toolbar is great.My question is that I couldnt find out how to snap x y z axes like hold the shift key down draw line and also hard to snap endpoint when creating or editing curves?

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      • F Offline
        function
        last edited by

        hi - I had a feature request for the Courbette tool.: can we have an option to specify a uniform division of vertexes over the whole curve while retaining the same control points? or possibly even better, to modify the S value between control points. As far as I have been able to understand, the S value affects the whole curve which causes facets with shallow slopes and over-division with high slopes (see image). Trying to up the S value to compensate for the faceting then simultaneously overpopulates higher slopes with far too many vertexes. This tool is very intuitive and great to work with, however I find myself attempting workarounds to create a more uniform distribution.


        courb.png

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        • fredo6F Offline
          fredo6
          last edited by

          @function said:

          hi - I had a feature request for the Courbette tool.: can we have an option to specify a uniform division of vertexes over the whole curve while retaining the same control points? or possibly even better, to modify the S value between control points. As far as I have been able to understand, the S value affects the whole curve which causes facets with shallow slopes and over-division with high slopes (see image). Trying to up the S value to compensate for the faceting then simultaneously overpopulates higher slopes with far too many vertexes. This tool is very intuitive and great to work with, however I find myself attempting workarounds to create a more uniform distribution.

          If the plugin created equal divisions, then it would adjust on the minimum ones, which would make the curve divided into a possibly big number of segments (in your exmaple you would have probably over 100).

          I think the best is that you resample the curve (or portions of the curve) with Polyline Divider or Polyline Segmentor (also included in BezierSpline) in order to have even segmentation and better control the result depending on the situation.

          Fredo

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          • F Offline
            function
            last edited by

            πŸ‘ thanks for the quick response

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            • H Offline
              herbert2000
              last edited by

              i have a probleme, I have install this version an still impossible to edit polylign. help !

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              • Dave RD Offline
                Dave R
                last edited by

                Was the polyline created with this plugin?

                Etaoin Shrdlu

                %

                (THERE'S NO PLACE LIKE)

                G28 X0.0 Y0.0 Z0.0

                M30

                %

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                • K Offline
                  khanhvu86
                  last edited by

                  thanks

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                  • H Offline
                    herbert2000
                    last edited by

                    yes, i draw it with the plugin,...and sketchup pro ! i have XP PRO and an old PC, may be my config is too old . I will try with an old version of sketchup ! thanks for the response !

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                    • Dave RD Offline
                      Dave R
                      last edited by

                      Once you've drawn your polyline and finished it, right click on it and choose Edit Polyline. Then you should be able to move the points of the line around. If you can't do this, please describe what part of it you can't do.

                      Etaoin Shrdlu

                      %

                      (THERE'S NO PLACE LIKE)

                      G28 X0.0 Y0.0 Z0.0

                      M30

                      %

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                      • I Offline
                        ivreich
                        last edited by

                        New feature Suggestion

                        Dear Fredo

                        Do you think it would be useful/possible to have bezierspline incorporate a function to blend 2 bsplines by curvature/tangents in the same way that the "blend" command in rhino does?

                        currently it's possible to do it manually by placing construction lines along the end segments of each bspline to simulate tangent guides, so i'm assuming it could be automated?

                        Cheers,

                        Joel

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                        • jeff hammondJ Offline
                          jeff hammond
                          last edited by

                          Hey Joel
                          Yeah, I think that would be very useful. (blend curve by bezier -- or whatever it may be called)

                          It be sweet if the first control point in on each end of the line were subsequently locked to the direction of the line being blended to. (ie- the construction line or guide if doing the blend manually)

                          dotdotdot

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                          • fredo6F Offline
                            fredo6
                            last edited by

                            @unknownuser said:

                            Hey Joel
                            Yeah, I think that would be very useful. (blend curve by bezier -- or whatever it may be called)

                            It be sweet if the first control point in on each end of the line were subsequently locked to the direction of the line being blended to. (ie- the construction line or guide if doing the blend manually)

                            Jeff and Joel,

                            Very good idea. I will do something in a frefresh of BezierSpline.

                            Fredo

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                            • jeff hammondJ Offline
                              jeff hammond
                              last edited by

                              nice! i'm glad you're into the idea.
                              i think it will be great and i'm sure a bunch of other people will be into it once they see what it does.

                              dotdotdot

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                              • D Offline
                                d12dozr
                                last edited by

                                Sounds like a great addition to an excellent tool! πŸ‘ Good idea, guys.

                                3D Printing with SketchUp Book
                                http://goo.gl/f7ooYh

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                                • pilouP Offline
                                  pilou
                                  last edited by

                                  More is the friend of Better! πŸ˜‰

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

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                                  • I Offline
                                    ivreich
                                    last edited by

                                    Sweeeet. fredo responded to my post! im a little starstruck now...

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                                    • H Offline
                                      herbert2000
                                      last edited by

                                      it's impossible for me to edit polylign....

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                                      • I Offline
                                        ivreich
                                        last edited by

                                        NEW FEATURE SUGGESTION: "MEAN CURVE"

                                        Hi again Fredo

                                        I know it hasn't been long since my last feature suggestion ("blend curve by bezier"), but here's another one you might be interested in:

                                        The "mean curve" command in Rhino creates an intermediate or "average" curve between two existing curves, which is especially useful for adding detail to contour maps and such. Is it possible for Bezierspline to do the same?

                                        I have attached an image showing how I imagine it would be done manually; i.e. draw connecting lines linking corresponding vertices on the two original curves, then drawing a third curve linking all the midpoints of those connecting lines to create an "average" curve.

                                        What do you reckon? The added advantage of Bezierspline automating this is that the generated curve would be an editable bspline as well. Does anyone else think this is a good idea?

                                        Cheers,

                                        Joel


                                        ![Drawing an "average" curve manually](/uploads/imported_attachments/aud3_MeanCurve.jpg "Drawing an "average" curve manually")

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                                        • C Offline
                                          carlofacultatif
                                          last edited by

                                          merci fredo!!!!!

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                                          • jeff hammondJ Offline
                                            jeff hammond
                                            last edited by

                                            @ivreich said:

                                            NEW FEATURE SUGGESTION: "MEAN CURVE"
                                            Does anyone else think this is a good idea?

                                            Cheers,

                                            Joel

                                            hey Joel
                                            i'm not quite convinced that your manual method is actually giving a mean curve.. i assume you're just connecting vertices then drawing segments through the midpoints.. i guess it sort of looks ok in the example you posted but it's not going to always work out that way.. see these two curves (well, one curve that's been copy/flipped)..

                                            mean.skp

                                            try your manual method on those and you'll soon run into problems.
                                            while it might be possible to make a plugin that can do an actual mean curve (or something close to it) in sketchup, i think it's going to be much more difficult then simply playing connect the dots.

                                            dotdotdot

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