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    [REQ] Centerline of two curves

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    • Arty2A Offline
      Arty2
      last edited by

      Duh! Just needed a push towards the right direction, it was right in front of my eyes after all.

      http://i49.tinypic.com/2a7j2bs.jpg

      Thank you Pilou!

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      • pilouP Offline
        pilou
        last edited by

        I see that you are using the V6 like me! 😎
        Welcome to the club! ☀

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

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        • mitcorbM Offline
          mitcorb
          last edited by

          Are we talking about 2d here? What is wrong with Offset? I just did a spline simulation with offset both sides of the original on the xy ground plane.

          I take the slow, deliberate approach in my aimless wandering.

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          • Dave RD Offline
            Dave R
            last edited by

            I think the OP is trying to get a mid line between two splines, not the other way round.


            Midlines.png

            Etaoin Shrdlu

            %

            (THERE'S NO PLACE LIKE)

            G28 X0.0 Y0.0 Z0.0

            M30

            %

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            • R Offline
              Roger
              last edited by

              French Curve Tool
              How about the French-Curve Tool? Speaking of which reminds me that Monsieur Bezier was a French engineer working for Renault (?).

              http://www.azcreative.com

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              • mitcorbM Offline
                mitcorb
                last edited by

                @Dave: Yes I see, now. 😳

                @Roger: I didn't realize that he worked for Renault. There's a heap o people really indebted to his invention, me for one.

                I take the slow, deliberate approach in my aimless wandering.

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                • R Offline
                  Roger
                  last edited by

                  @mitcorb said:

                  @Dave: Yes I see, now. 😳

                  @Roger: I didn't realize that he worked for Renault. There's a heap o people really indebted to his invention, me for one.

                  I wrote a story for the Hitachi Data Systems magazine at one time about mainframe-based design and manufacturing systems and that was some of the data that I came up with. Also, if memory serves, one of the Renault brothers collaborated with the Nazis and after the liberation with beaten to death by a French soldier who used his helmet as a weapon.

                  http://www.azcreative.com

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                  • TIGT Offline
                    TIG Moderator
                    last edited by

                    If you close the ends of the two curves to form one face... then CurviLoft's Skinning tool will add a centerline, if you use the 'Generate intermediate edges' tool to make one central division...

                    TIG

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                    • pilouP Offline
                      pilou
                      last edited by

                      Pierre Bézier
                      Comments are in English

                      See the drawings! 😉

                      Good page one
                      Good page two

                      (translated in English with Googletranslator 😉

                      http://www.christianboyer.com/jumieges/bezier1990.jpg

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

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                      • Dave RD Offline
                        Dave R
                        last edited by

                        Michael, You can use either Bezier.rb or the BZ Spline Tools to make the original curves. After that, though, you appear to be getting the right screen to create the midline. All you need to do is change sampling to 2.

                        Etaoin Shrdlu

                        %

                        (THERE'S NO PLACE LIKE)

                        G28 X0.0 Y0.0 Z0.0

                        M30

                        %

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                        • M Offline
                          mrossk
                          last edited by

                          Don't mean to hijack the thread- I tried this and when I run curviloft I don't get the same screen shown as the OP. I don't have the options for type of spline curve, nor for the number of segments. I've downloaded the most recent version of Curviloft as well as the Lib fredo directory. Does one also need the bezier curve plugin or something else. I apologize if I'm missing something obvious, thanks,
                          Michael

                          Edit: I think I discovered that the OP's screen shot is of the "Loft" function, not the "Skinning" function. Sorry to bother.


                          Capture.JPG

                          https://www.mkaplanfinefurniture.com/

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                          • M Offline
                            mrossk
                            last edited by

                            Thanks for the reply Dave. I get the curves drawn, but even when changing the sampling to "2", I still get many curved lines. I've only been able to get it to work by using the "loft" function.
                            At least I get a result...

                            https://www.mkaplanfinefurniture.com/

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

                              Use the first icon on the toolbar

                              Download the free D'oh Book for SketchUp 📖

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