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SketchyPhysics3.2 (Dec 2)

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  • J Offline
    jblively
    last edited by 28 Dec 2010, 00:43

    • New script command setFrameRate overrides physics settings framerate.

    Hello, trying to implement the set frame rate command to get the model to slow down on faster computers so we can anticipate the results.

    Can you let me know the usage and where to put it.

    I've tried setFrameRate=5; in the on tick section and it doesn't seem to make any difference.

    Thanks,

    Joe

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    • B Offline
      bossdave
      last edited by 28 Dec 2010, 02:09

      I am running SU8 with wine on Ubuntu with SP3.2. The UI box appears showing: Joint, State, Properties, Shapes , but no details. Same problem withSP3.1. Any ideas what I am missing? Thanks

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      • P Offline
        phy
        last edited by 28 Dec 2010, 02:59

        @bossdave said:

        I am running SU8 with wine on Ubuntu with SP3.2. The UI box appears showing: Joint, State, Properties, Shapes , but no details. Same problem withSP3.1. Any ideas what I am missing? Thanks

        There you go http://forums.sketchucation.com/viewtopic.php?f=61&t=33030
        webdialogs don't work in wine without this tweak.

        Tableau de comparaison de Staxyn s'agit d'un mГ©dicament uniquement sur ordonnance.

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        • C Offline
          CPhillips
          last edited by 29 Dec 2010, 08:26

          @jblively said:

          • New script command setFrameRate overrides physics settings framerate.

          Hello, trying to implement the set frame rate command to get the model to slow down on faster computers so we can anticipate the results.

          Can you let me know the usage and where to put it.

          I've tried setFrameRate=5; in the on tick section and it doesn't seem to make any difference.

          Thanks,

          Joe

          Thats not quite how it works. a frame rate of 5 will make the physics simulation step 5 times before updating the sketchup model. To make it go a little slower you could use a frame rate of 1.

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          • M Offline
            MichaelG.1
            last edited by 1 Jan 2011, 12:15

            I posted a comment
            [more particularly a plea for help]
            in the newbie forum, yesterday.

            Grateful for any assistance.

            MichaelG.

            Update: 01-01-2011
            ... Having received no response. I finally discovered that my download of SP3.2 was either incomplete or corrupt.
            Now, having downloaded a fresh copy, everything seems to work.

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            • R Offline
              robint
              last edited by 4 Jan 2011, 09:54

              help UI window not working

              Postby robint on Mon Jan 03, 2011 8:59 am
              ive got su8 latest and sp 3.2 installed

              when I try to inspect joints i get the usual info for a hinge (say). when I try to input say accel or a controller name , it accepts them but doesnt do anything - no slider in the run panel

              Ive tried the other tip of clicking on the UI button to exit the UI window to no avail

              I saw a tuorial where it said that you can turn a hinge into a reversible motor by putting accel = 1 and giving the controller a name - which is then supposed to bring up a slider in the run panel - i just get a blank.

              then i go back and look again and just get blank boxes. only restarting su8 will clear the prob but it comes back if I try to change a parameter

              cheers Robin

              ps I havent got so excited since I first used SU4 - this could be a wonderful educational tool if physical values could be added to demonstrate newtons laws for example

              I made a double pendulum the other day, but as already said, there's lots of real world physical attributes to be addressed (eg mass, density, friction, elasticity etc) but its early days

              As one door closes another one slams in your face

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              • R Offline
                robint
                last edited by 5 Jan 2011, 10:21

                Hi guys

                how or where do I post a skp model for discussion

                also i cant post a link here?

                robin

                As one door closes another one slams in your face

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                • R Offline
                  robint
                  last edited by 6 Jan 2011, 08:21

                  This site seems to be moribund, not a lot happening?

                  Anyway Ive solved the UI problem

                  so all working ok now

                  As one door closes another one slams in your face

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                  • R Offline
                    robint
                    last edited by 6 Jan 2011, 08:31

                    here my 2c worth for sp 3.2

                    if you want to make a reversible motor joint, use the hinge (as per sp2) and set the controller blue box to

                    quote slider ( 'anyname' )

                    you can see the same construction using the motor joint

                    wish I didnt have to waste hours getting to this point.

                    Also

                    to make magnetic solids work you need to set the ui box status to magnetic
                    and the magnetic force to a large value eg +- 1000

                    not obvious is it?

                    I wonder whether its worth contributing to a wikimanual at5 this stage if thereis going to be an sp4 completely recoded?

                    Robin

                    As one door closes another one slams in your face

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                    • J Offline
                      jblively
                      last edited by 7 Jan 2011, 01:45

                      @robint said:

                      to make magnetic solids work you need to set the ui box status to magnetic
                      and the magnetic force to a large value eg +- 1000

                      I do believe that magnetic force is also affected by mass and scale. So if the model is very large, you'll need a larger value for magnetic force. If you have a small scale model, you can use a magnetic force of as little as 10 to see results.

                      There is so much involved in SP, more documentation would be nice, but i'm just glad we have people here we can chat with who want to help!

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                      • P Offline
                        pilou
                        last edited by 7 Jan 2011, 02:25

                        Does this vervion can works on the V6?

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

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                        • R Offline
                          robint
                          last edited by 7 Jan 2011, 09:06

                          Hi JB

                          good point

                          afik though there is a density coeff, I dont know how well it correlates to the mass of an object?
                          the apparent mass i governed by the size of the collision shape as set in the rt click physics setting

                          havent figured this tiresome details out yet

                          I have a number of cu4rious physical models i would like to post for discussion (eg double pendulums etc) but havent yet found a way to post these little experiments.

                          It seems daft that one cant attach these on this forum - severly limiting

                          Any ideas?

                          As one door closes another one slams in your face

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                          • C Offline
                            CPhillips
                            last edited by 11 Jan 2011, 02:42

                            Yes magnets are effected by the size of an object.

                            You can attach files to posts. Look at the bottom of the form and there is an "Upload Attachment" tab.

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                            • R Offline
                              robint
                              last edited by 11 Jan 2011, 09:19

                              hi all

                              sorry pardon didnt see the tab for uploading

                              I was trying to make a chain rotating around 2 sprockets. The chain seems to want to fly apart, its all chaotic? even though its all supposed to be stationary, any ideas

                              btw i have su8 and sp3.2 dec2010

                              its all good fun but i wish i had more control over the way things work, bit hit and miss at the moment

                              btw although bugsplat is a good tool, i dont connect my main machine directly to the net for obvious security reasons, so cannot utilise bs directly. It would be much more convenient if bs made a composite text file stored conveniently which i could gather up and post here to help with su crashes. Its a bit cumbersome at the moment

                              cheers robin


                              a chain loop goes wrong

                              As one door closes another one slams in your face

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                              • T Offline
                                TIG Moderator
                                last edited by 11 Jan 2011, 10:39

                                CPhillips
                                Please see here for an 'issue' with group.definition http://forums.sketchucation.com/viewtopic.php?p=300105#p300105 😉

                                TIG

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                                • R Offline
                                  robint
                                  last edited by 12 Jan 2011, 03:26

                                  hi CP

                                  thanx for the tip, will see if i can make it so.

                                  any pointers on where to start on Ruby so i can at least know something of what im doing?

                                  cheers

                                  Robint

                                  As one door closes another one slams in your face

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                                  • R Offline
                                    robint
                                    last edited by 15 Jan 2011, 07:33

                                    @tig said:

                                    CPhillips
                                    Please see here for an 'issue' with group.definition http://forums.sketchucation.com/viewtopic.php?p=300105#p300105 😉

                                    Hi
                                    I tried the code but it seemed to make things worse

                                    Code: Select all
                                    class Sketchup::Group
                                    if not Sketchup::Group.method_defined?(:definition)
                                    def definition() # make it so you can use group.definition
                                    return(self.entities.parent)
                                    end
                                    end#if
                                    end

                                    something about a chain sp doesnt like

                                    Im stuck, my chain flies apart

                                    robin


                                    attemtped chain

                                    As one door closes another one slams in your face

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                                    • R Offline
                                      robint
                                      last edited by 19 Jan 2011, 08:43

                                      High CP

                                      I have used Poser 5 in the past and learnt about inverse kinematics and joints

                                      I think there is a fundamental limitation that prevents you making a chain of joints because the last child joint has to join the first parent so the parent must then become a child. This would be inherently unstable (like positive feedback) which is why the joint flies apart in pieces

                                      Can anyone confirm my guesswork or poiont me somewhere that a working chain has been made (ie will revolve around a sprocket

                                      cheers robin

                                      As one door closes another one slams in your face

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                                      • H Offline
                                        hpnisse
                                        last edited by 19 Jan 2011, 15:47

                                        Hey, robint!

                                        Your chain works perfect when you set the collision state correct in every single object 😄
                                        Re. my chain 1.skp

                                        ` /hpnisse`
                                        ` Windows 7 U -Sketchup 8 -SketchyPhysics 3.2-Dec2 - from Sweden`

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                                        • OxerO Offline
                                          Oxer
                                          last edited by 20 Jan 2011, 02:21

                                          Hi,
                                          I have installed SketchyPhisics 3.2 on Mac with OSX 10.6.6 and SU8 and the plugin don't woks, SU read the plugin, appear the toolbars, you can create the shapes but when you press the play appears a window with this message:
                                          Error initializing the Simulation: : uninitialized constant MSketchyPhysics3::SP3xSimulationContext::SPSounds /Users/Oxer/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SketchyPhysics3/ControllerCommands.rb:777:in `initialize'
                                          And in the ruby console this:
                                          %(#FF0000)[String doesn't compile: uninitialized constant MSketchyPhysics3::SP3xSimulationContext::SPSounds#<NameError: uninitialized constant MSketchyPhysics3::SP3xSimulationContext::SPSounds>
                                          /Users/Oxer/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SketchyPhysics3/ControllerCommands.rb:777:in `initialize'
                                          /Users/Oxer/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SketchyPhysics3/sketchyphysicstool.rb:727:in `new'
                                          /Users/Oxer/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SketchyPhysics3/sketchyphysicstool.rb:727:in `initialize'
                                          /Users/Oxer/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SketchyPhysics3/sketchyphysicstool.rb:1623:in `new'
                                          /Users/Oxer/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SketchyPhysics3/sketchyphysicstool.rb:1623:in `startphysics'
                                          /Users/Oxer/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SketchyPhysics3/sketchyphysicstool.rb:1650:in `physicsTogglePlay'
                                          /Users/Oxer/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SketchyPhysics3/sketchyphysicstool.rb:1738]
                                          I have reinstalled SketchyPhysics3.1 and works.

                                          "The result is the end what is important is the process" by Oxer
                                          [http://www.oxervision.blogspot.com/(http://www.oxervision.blogspot.com/)]

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