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    [Plugin] SketchyFFD (Classic)

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    • boofredlayB Offline
      boofredlay
      last edited by

      @unknownuser said:

      impressive task 😎
      Works fine except the control points stay on the screen after deformation ❓

      That is the new group created by the FFD. You can simply delete or hide it when done with it.

      This is great! Thanks for this script.

      http://www.coroflot.com/boofredlay

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      • boofredlayB Offline
        boofredlay
        last edited by

        Here is a quickie test. I drew a circle with 24 segments and copy/push/pull. Then I ran the script and moved the points.
        This is one more step towards organics indeed. 👍


        FFD.jpg

        http://www.coroflot.com/boofredlay

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        • pilouP Offline
          pilou
          last edited by

          @unknownuser said:

          That is the new group created by the FFD. You can simply delete or hide it when done with it.

          THX: very simple indeed ! ☀

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

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          • K Offline
            krash88
            last edited by

            It looks great in it's current form, but I get this error in the console... Maybe I'm doing something wrong...

            Error: #<NoMethodError: undefined method definition' for #<Sketchup::Group:0xbec0960>> C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:224:in analizeLattice'
            C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:60:in updateFFD' C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:13 C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:13:in call'

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            • Mike LuceyM Offline
              Mike Lucey
              last edited by

              Thanks Chris, this could really be a useful Ruby for SketchUp.
              I hope someone picks it up (as you say) and copper fastens it.
              Even if they don't I imagine you will in your own good time
              finalise the Script 😉

              Mike

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

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              • C Offline
                CPhillips
                last edited by

                @krash88 said:

                It looks great in it's current form, but I get this error in the console... Maybe I'm doing something wrong...

                Error: #<NoMethodError: undefined method definition' for #<Sketchup::Group:0xbec0960>> C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:224:in analizeLattice'
                C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:60:in updateFFD' C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:13 C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:13:in call'

                Ooops! I fixed it and updated the script in the original post. Kwistenbiebel this is probably the same bug you were seeing.

                Chris

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                • C Offline
                  CPhillips
                  last edited by

                  @unknownuser said:

                  I can't get this script to work. Nothing happens.
                  I create a sphere, group it, right-click and do 3x3 FFD, enter the new group with Construction Points, move some to another position, exit the group, right-click the sphere group and choose Update FFD. Nothing happens.

                  Can you open the ruby console and see if it is printing any errors?

                  Chris

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                  • K Offline
                    kwistenbiebel
                    last edited by

                    ...exactly the same here. I see no errors in the ruby panel though.

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                    • C Offline
                      CPhillips
                      last edited by

                      @kwistenbiebel said:

                      ...exactly the same here. I see no errors in the ruby panel though.

                      Wow. I tried it on 2 different machines and it works. Maybe you are using a Mac? Altho I don't see why that would make any difference..

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                      • K Offline
                        kwistenbiebel
                        last edited by

                        Does the plugin in any means uses web based 'action script' or 'javascript' as I had trouble before with corrupt Iexplorer settings?
                        (I refer to web panel based plugins like Skindigo that failed in the past on my pc due to 'script blockers' )

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                        • boofredlayB Offline
                          boofredlay
                          last edited by

                          It is working fine on my home machine as well as my work machine. Both pc on xp. One new, the other 8 years old. 😲

                          http://www.coroflot.com/boofredlay

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                          • C Offline
                            CPhillips
                            last edited by

                            @kwistenbiebel said:

                            Does the plugin in any means uses web based 'action script' or 'javascript' as I had trouble before with corrupt Iexplorer settings?
                            (I refer to web panel based plugins like Skindigo that failed in the past on my pc due to 'script blockers' )

                            No other scripts at all. Just pure ruby.

                            Hrmm. Very strange. Try doing a 2x2 FFD on a simple box. With the ruby console open in case of errors.

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                            • Dave RD Offline
                              Dave R
                              last edited by

                              Very cool script. Thank you.

                              I do seem to being doing something wrong with it though. (Leave it to me to break it. 😒 ) See the attached screen grab.

                              I drew a sphere centered on the blue axis and above the ground plane. After moving a single point marked at the top and updating, the egg moved off to where it is now. What did I do wrong?
                              Dave screws it up.

                              Etaoin Shrdlu

                              %

                              (THERE'S NO PLACE LIKE)

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                              M30

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                              • K Offline
                                krash88
                                last edited by

                                @cphillips said:

                                @krash88 said:

                                It looks great in it's current form, but I get this error in the console... Maybe I'm doing something wrong...

                                Error: #<NoMethodError: undefined method definition' for #<Sketchup::Group:0xbec0960>> C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:224:in analizeLattice'
                                C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:60:in updateFFD' C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:13 C:/Program Files/Google/Google SketchUp 6/Plugins/SketchyFFD.rb:13:in call'

                                Ooops! I fixed it and updated the script in the original post. Kwistenbiebel this is probably the same bug you were seeing.

                                Chris

                                It works great now! thanks for the fix!

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                                • C Offline
                                  CPhillips
                                  last edited by

                                  @dave r said:

                                  Very cool script. Thank you.

                                  I do seem to being doing something wrong with it though. (Leave it to me to break it. 😒 ) See the attached screen grab.

                                  I drew a sphere centered on the blue axis and above the ground plane. After moving a single point marked at the top and updating, the egg moved off to where it is now. What did I do wrong?
                                  [attachment=0:wa4rvigs]<!-- ia0 -->FFD1.JPG<!-- ia0 -->[/attachment:wa4rvigs]

                                  It looks like you did a "Update FFD" without first closing the control point group.

                                  Chris

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                                  • Dave RD Offline
                                    Dave R
                                    last edited by

                                    Yup. That's what I did alright. 😳

                                    Thanks for the help.

                                    Dave

                                    Etaoin Shrdlu

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                                    • Dave RD Offline
                                      Dave R
                                      last edited by

                                      Coen's post makes me ask, is there anyway to make this work on a component instead of or in addition to a group?

                                      Etaoin Shrdlu

                                      %

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                                      • Dave RD Offline
                                        Dave R
                                        last edited by

                                        Where's the "dope slap" smilie? 😒 😆

                                        I was doing it in reverse, trying to make a group of a components. Thanks Coen. I gotta think inside the box. 👍

                                        Etaoin Shrdlu

                                        %

                                        (THERE'S NO PLACE LIKE)

                                        G28 X0.0 Y0.0 Z0.0

                                        M30

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                                        • C Offline
                                          CPhillips
                                          last edited by

                                          @unknownuser said:

                                          You're welcome Dave!

                                          What's a dope slap though?

                                          Also, I have been experimenting more with this script. I had an idea to position the cloned Construction Points along a series of curved Edges that you usually see used on Soap Skin Bubble examples, but I haven't been successful. I am trying to see (and would like Chris to shed some light on this) if the Construction Points have coordinates assigned to them. What I mean is that if I clone the Construction Points from the top and use them in the bottom will this distort the FFD? Should I therefor use the top ones? Well I tested this and it does seem so that there are coordinates assigned to them because by running two tests, one with using the Construction Points from above and the other test by using the bottom ones, and the result were different. The second test is what you see below, which brings me to another point - it is interesting to see what kind of curvy geometry you can create with this script, cloning Construction Points and positioning them. I hope I can find a way to understand how to exactly control them so it becomes easy to make any kind of curved geometry I had hoped to create in the first place.

                                          As it is currently written it creates the construction points at fixed points and then weights the model based on that initial position. I am actually surprised that coping the construction points works at all. 😄

                                          I think what you are asking for is: Take this mesh and start FFD with this group of arbitrary positioned control points. That should be possible and probably not to difficult.

                                          But you would have to be careful. When you start a FFD it creates a table of weights for each construction point with 3 floats per vertex in the group to deform.
                                          So if you have a mesh with 1000 verts and a 3x3 set of control points:
                                          3x3x3=27 control points
                                          2710003=81,000 floats

                                          When you update it loops through each vertex and calculates how much to move it based on the weighted changes in the control point. So the more control points you have the slower it is.

                                          In your picture it looks like you have 9x9x3 control points. That comes to 729,000 floats. It would be really really slow to deform.

                                          Chris

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                                          • jujuJ Offline
                                            juju
                                            last edited by

                                            I'd take "really really slow" over "no such function at all" any day.

                                            Save the Earth, it's the only planet with chocolate.

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