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NoTwist using Joint PP

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  • D Offline
    dtrarch
    last edited by 15 Feb 2008, 19:02

    Bingo

    After a little messing around with Joint PP I did find a basic solution to the old and messy Twisted Sister issue in SU path extrude.

    At last it is really possible to create at least a simple roadway using an inclined path that really stayed level using the JointPushPull ruby set.
    Just a brilliant ruby solution and terrific docs too.

    Many thanks to Fredo6 for this impressive work.

    The basic first shot is attached

    dtr


    No Twist Solution.skp

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    • M Offline
      Mike Lucey
      last edited by 15 Feb 2008, 19:06

      Yes indeed thanks to Fred06 and to you for the explanatory skps

      Mike

      Support us so we can support you! Upgrade to Premium Membership!

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      • J Offline
        JClements
        last edited by 16 Feb 2008, 06:56

        detrach:

        In your .skp you mention choice "J". I don't have that listed in my PullDown menu.

        Has there been newer release of the ruby or is this a typo?

        John | Illustrator | Beaverton, Oregon

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        • J Offline
          jeff hammond
          last edited by 16 Feb 2008, 13:11

          @jclements said:

          detrach:

          In your .skp you mention choice "J". I don't have that listed in my PullDown menu.

          Has there been newer release of the ruby or is this a typo?

          "J" is what it says on the tool icon if you have it turned on... there are two icons- both with a push/pull looking graphic and one has a J .. the other has a V

          dotdotdot

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          • G Offline
            Gaieus
            last edited by 16 Feb 2008, 14:03

            "J" for "Joint PP" (briefly and roughly perpendicular to faces) and "V" for "Vector PP" (in one direction).

            Gai...

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            • J Offline
              JClements
              last edited by 16 Feb 2008, 22:23

              OK.

              I had forgotten about the toolbar.

              J

              John | Illustrator | Beaverton, Oregon

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              • E Offline
                erikB
                last edited by 6 Mar 2008, 09:18

                I am sorry dtarch but I do not understand how you get from the extruded line to the (not twisted) road in your example file ?
                If I JPP de extruded line I do not get your result. any help ?
                erikB

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                • S Offline
                  solo
                  last edited by 6 Mar 2008, 09:31

                  Where can I find the extrude vector 2 points ruby?

                  http://www.solos-art.com

                  If you see a toilet in your dreams do not use it.

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                  • E Offline
                    erikB
                    last edited by 6 Mar 2008, 10:04

                    Solo,
                    I have a separated ruby that extrudes by vector but I do not remember where I got it. BUT the function is also available in the projection ruby by Didier Bur witch you can find on this forum.
                    greetings, erikB

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                    • S Offline
                      solo
                      last edited by 6 Mar 2008, 10:47

                      Thanks for the reply, I will try find the separate ruby, if anyone knows where I can find it I would appreciate the help.

                      http://www.solos-art.com

                      If you see a toilet in your dreams do not use it.

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                      • E Offline
                        erikB
                        last edited by 6 Mar 2008, 11:09

                        solo, I looked it up in the ruby and the initial ruby was also by Didier. So I guess I can put it here on the forum since it was a free ruby. If I couldn't please let one of the mod's remove it.
                        greetings erikB


                        extrudelinetool.rb

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                        • S Offline
                          solo
                          last edited by 6 Mar 2008, 11:12

                          Thank you, I would never have found it as the name is different to the one I was searching for.

                          http://www.solos-art.com

                          If you see a toilet in your dreams do not use it.

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                          • D Offline
                            dtrarch
                            last edited by 6 Mar 2008, 15:35

                            ErikB

                            Sorry to miss all the problems finding the ruby.

                            FYI I draw a vector in the direction and height needed.
                            It can be anywhere as it is just a reference entity.
                            If snapped to the line to extrude it is a good idea to group the vector reference.

                            You can see it in my first scene.

                            Hope this helps a bit.

                            dtr

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                            • A Offline
                              a4chitect
                              last edited by 6 Mar 2008, 15:55

                              dtrarch which version of the JPP script are you using? because mine doesn't allow to set "normal to blue axis". is it a different version, or am I just doing something wrong?

                              thanks for your perfect workaround for creating 'correct' roads. I suggest using this approach to generate appropriate surface for the road (from simplified road contours) and then draping the exact shape of the road on this surface to get precise road surface

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                              • A Offline
                                a4chitect
                                last edited by 6 Mar 2008, 16:27

                                all right - I guess that the 'missing' normal to blue axis is not available in the graphical JPP.

                                this is what fredo6 says about setting privileged plane in his visual edition:

                                @unknownuser said:

                                For Joint Push Pull, you can set the privileged plane by using short cuts Ctrl+Arrow, or just pressing Ctrl to enter a mode where you can specifiy any plane visually.

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                                • E Offline
                                  erikB
                                  last edited by 7 Mar 2008, 15:07

                                  I am sorry dtarch, but I still don't get it !
                                  I know how to extrude the line, that is not the problem but how do you get from the vertical plan thus created to the PP road using the ruby ?
                                  I tried all the differt ways to JPP but couldn't reach your result. I clearly missing something 😕 Any clarification ?
                                  erikB

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                                  • D Offline
                                    dtrarch
                                    last edited by 7 Mar 2008, 15:47

                                    Hi erikB

                                    Here is the sequence.

                                    1-an inclined curved path was created with grouped vector on z axis to use as the extrude by 2 points path.

                                    2-using the [extrudelinetool] ruby (by 2 vector points) the path was extruded up the z axis.

                                    3-the face created was selected and the [J] icon for the Joint PP was selected using the settings per my post.(use the [tab] to access same.

                                    4-the tool was then used to PP the face and it was done.
                                    ☀ 😄

                                    Hope this clears things up for you.

                                    dtr

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                                    • E Offline
                                      erikB
                                      last edited by 7 Mar 2008, 16:25

                                      Thanks dtarch, got it now. It was the crtl-arrows function in conjunction with the jpp that did the trick. Sorry for the hassle.
                                      greetings, erikB

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                                      • D Offline
                                        dtrarch
                                        last edited by 7 Mar 2008, 16:33

                                        erikB

                                        Glad to help

                                        Of course a no-twist extrude along path would be the real answer but jointPP will work pretty well and glad to have it

                                        dtr

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