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    SketchyPhysics 3.5.6 (26 January 2015)

    Scheduled Pinned Locked Moved SketchyPhysics
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    • cottyC Offline
      cotty
      last edited by

      @anton_s said:

      I will send an error message to them for this version as well. Yet, I can't fix it, as there are too much errors. Use version 3.6.28.3 with the fix I provided in the first post. Otherwise, you'll have to wait till they fix it.

      A new version is out and the changelog says: "Fixing up SketchPhysics export" (not tested).

      my SketchUp gallery

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      • P Offline
        platinius
        last edited by

        @unknownuser said:

        Can you show an example, I can't reproduce this.

        I'm sorry about that, it seems I didn't try enough. There is no difference between the axes. It irritated me that the moving direction of a piston or slider is opposite to the direction I choose with the mouse when positioning. For example, if I put a slider joint on the corner of a box and drag the mouse to the positive green direction it will move only to the negative direction.

        @unknownuser said:

        I can't change it because it could break compatibility with prior models, but I can make it to evaluate everything in the control box. For example, if you write 100mm it will turn it to 3.93.

        Maybe this would help a little bit. To put the units besides the input boxes would be great and help people also. Maybe you know that a Mars orbiter crashed in 1999 due to falsely used units. I assume no one uses SP to constructed actually flying space ships, still it feels good to know what units one uses. πŸ˜‰

        I found this thread which gives some information about units in SP:
        http://sketchucation.com/forums/viewtopic.php?f=61%26amp;t=53209

        A world scale factor of 1.0 and gravity of 9.81 (m/sΒ²) seems to be suitable if using metric units.

        Maybe this thread is of interest for you also. Looks like SP's author asked this question:
        http://newtondynamics.com/forum/viewtopic.php?f=9%26amp;t=4684

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        • A Offline
          Anton_S
          last edited by

          To make the mouse control desired, simply multiply the whole controller by a negative sign.

          I will add a list-box from which you could choose the type of limits angle/length.

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          • A Offline
            Anton_S
            last edited by

            @cotty said:

            A new version is out and the changelog says: "Fixing up SketchPhysics export" (not tested).

            Cheers!

            It exports without problems, although the error comes when try to run the exported animation in Indigo render 3.6.28. Maybe I should download Indigo 3.8.x which is not available yet?

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            • cottyC Offline
              cotty
              last edited by

              @anton_s said:

              Maybe I should download Indigo 3.8.x which is not available yet?

              You'll find the newest beta in the forum: http://www.indigorenderer.com/forum/viewtopic.php?f=1%26amp;t=13252

              my SketchUp gallery

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              • T Offline
                Trobius
                last edited by

                Hi there! I've been an on and off user of sketchyphysics since 2.0.

                Would it be possible to create a way to get an emitted object's lifetime? I know about the setLifetime function, but is there a similar "getLifetime?"

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                • A Offline
                  Anton_S
                  last edited by

                  Hello, William!

                  Yes, SP doesn't have these methods. The API is quite incomplete.
                  I just added getLifetime, getLifeStart, and getLifeEnd.

                  Is there any other getter or setter functions you think shall be added before I post an update? Sorry, I can't think of any myself.

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                  • ashscottA Offline
                    ashscott
                    last edited by

                    You're a champ Anton, your efforts are very much appreciated.

                    Wish I had time to get back to some of the SP work I was doing earlier.

                    If anyone wants SP inspiration, check this model out: https://3dwarehouse.sketchup.com/model.html?id=5b618d4ba6c22ca85fd35d52fb19ea9b

                    In fact, all of Phonic's work is pretty amazing: https://3dwarehouse.sketchup.com/user.html?id=0127263341868366760323686

                    Just some stuff I do with Sketchup.

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                    • A Offline
                      Anton_S
                      last edited by

                      Thanks, Ash.

                      Lately, I haven't created any SP either. I suppose, that is because I kinda lost passion in it.

                      Phoenix is a good SP modeler. He's sharing some great stuff! πŸ‘

                      Mr.K made some amazing things too. For instance, take a look at the Blue vs Red. You control the bot to get across the puzzle. It may appear mind boggling at first, but you'll get it mastered after some experience.

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                      • ashscottA Offline
                        ashscott
                        last edited by

                        Have you had any interaction with Phonic? I couldn't get a response when I tried some years ago - I wondered if he was only mandarin speaking.

                        Just some stuff I do with Sketchup.

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                        • A Offline
                          Anton_S
                          last edited by

                          @ashscott said:

                          Have you had any interaction with Phonic? I couldn't get a response when I tried some years ago - I wondered if he was only mandarin speaking.

                          Nope, I haven't. I doubt that Phoenix even reads the comments. Usually people respond to their comments by updating the model description with responses, but I never seen him do that.

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                          • ashscottA Offline
                            ashscott
                            last edited by

                            One thing with Sketchyphysics I did wonder about - and I have no idea how to execute it - would be a "Cut" function. I have modeled saw milling machinery with SP in the past but always had to do some variation of a breakable joint to simulate cutting - due to the physical reactions in breaking a joint, you can understand that it wasn't pretty.

                            Any idea how to cut an object so that it becomes two?

                            Just some stuff I do with Sketchup.

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                            • A Offline
                              Anton_S
                              last edited by

                              Piece of cake!

                              Copy this piece of code into the scripted field of the body that you want to be cut:

                              
                              onTouch {
                                split(self, 2)
                              }
                              
                              

                              What happens is that it splits when it is touched by another body. Increasing the value will create more cuts.

                              Of course, the code may be changed to have the body be split in another occasion, for instance when it touches a particular body, or at specified frame... If you provide some instructions I could easily write you a code.
                              πŸ’š

                              Here is a little example:cut_body_example.skp

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                              • ashscottA Offline
                                ashscott
                                last edited by

                                Very cool!

                                I think I've seen some reference to this before.

                                How would I control the cut so it occurs in a specific place?

                                For example, on a piece of wood - to only be cut where the saw touches it?

                                Ash

                                Just some stuff I do with Sketchup.

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                                • A Offline
                                  Anton_S
                                  last edited by

                                  SP doesn't have this method, but I created my own.
                                  https://3dwarehouse.sketchup.com/model.html?id=ua22b41f2-9654-4d70-898b-46d96e687272

                                  https://googledrive.com/host/0B3qg8f4WrNdHWktZLXN5T2d6Tms/factory_slicer.gif

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                                  • ashscottA Offline
                                    ashscott
                                    last edited by

                                    Anton,

                                    I am stunned 😲

                                    I have tried so long to get a working function like what you've shown and have failed miserably - this is totally amazing. I hope you don't mind me pillaging your code for ideas?

                                    Frenchy:
                                    @unknownuser said:

                                    And also the white cross texture box "transparent" who is drawn

                                    For some reason "Hidden Geometry" is getting turned on when I run an simulation the first time. Go >View>Hidden Geometry to turn it off.

                                    Just some stuff I do with Sketchup.

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                                    • pilouP Offline
                                      pilou
                                      last edited by

                                      Cool function! πŸ‘
                                      But seems there is a glitch! πŸ˜‰

                                      When I use these 2 menus!
                                      After the Record Animation, replay etc...
                                      Animation is stopped at the moment of the box must be "exploded" on the inclined plane! 😲
                                      Can you verify this ?

                                      And also the white cross texture box "transparent" who is drawn! 😲
                                      This is the image of the result wished!
                                      glitchSketchy.jpg


                                      cut_body_example_glitch.skp

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

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                                      • pilouP Offline
                                        pilou
                                        last edited by

                                        Thx πŸ˜„

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

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                                        • A Offline
                                          Anton_S
                                          last edited by

                                          @unknownuser said:

                                          When I use these 2 menus!
                                          After the Record Animation, replay etc...
                                          Animation is stopped at the moment of the box must be "exploded" on the inclined plane! 😲
                                          Can you verify this ?

                                          The animation doesn't handle added and removed objects during simulation.

                                          What happens behind the scenes:
                                          When the body is about to be split, the body itself doesn't split, but rather two other bodies are added in similar form. The original body becomes hidden and set static, meanwhile the two added bodies take over the scene. When simulation resets the original body is unhidden, and the added split bodies are deleted. The animation tool is not complex. It does not record added and removed bodies during simulation.

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                                          • A Offline
                                            Anton_S
                                            last edited by

                                            @ashscott said:

                                            Anton,

                                            I am stunned 😲

                                            I have tried so long to get a working function like what you've shown and have failed miserably - this is totally amazing. I hope you don't mind me pillaging your code for ideas?

                                            Thanks! I'd be impressed to see someone use my code πŸ˜„

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