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    Designate center of gravity?

    Scheduled Pinned Locked Moved SketchyPhysics
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    • B Offline
      BTM
      last edited by

      I've noticed that with some shapes, the center of gravity won't be where it should be; instead, it seems to be in the center of the bounding box. C.Phillips, can you create a feature which allows us to set the center of gravity?

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      • C Offline
        CPhillips
        last edited by

        Adjustable center of gravity is one of the features that is very difficult to do in this version. I made a bad assumption early on about what "center" means and we are kinda stuck with it. Its a major reason I started SPIV. In that version you will be able to set it where ever you want by moving the pivot.

        There are some workarounds for moving the COG. You can group the object with some nocollision objects to make the bounding box center be the location you want the COG.

        One other thing in that category is arbitrary scaling. You should be able to squash a sphere or a cylinder (or anything) in any direction and it would work right. The shapes in the attached model will work correctly in SPIV.

        Did you know that even with SP3 you can scale a sphere object any way you want?


        ScaleExample.skp

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        • M Offline
          MrPlanet
          last edited by

          💭 .I thought Blender had a pretty cool centering system, select multiple objects and it automatically show their center of gravity.

          I reject your reality and substitute my own.

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          • H Offline
            hobbnob
            last edited by

            please cast your minds back to this: http://sketchup.google.com/3dwarehouse/details?mid=a507050360e487cd6227cba038bf7c95&prevstart=0 i think this is what you are talking about, it's a bike that doesn't use any gyros or anything, but relies on an extremely low centre of gravity

            My WIP Thread:Here

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