This rigid body part can be used in the biomechanical editor to create a musculo-skeletal
model. The sphere is a simple 3D graphic primitive with one changeable dimension:
You can change the size of the sphere by directly setting its properties in the property toolbar, or you can do it using the mouse.
If you right click and drag the mouse on the side of the sphere you can increase or decrease its radius.
You can also
move the part using the mouse. If you right click on the center selection box you can move the part in the XY plane. To switch to moving it
in the XZ plane hold down the "s" key while moving the box. You can also move it in just one dimension by holding down the "x",
"y", or "z" key while moving the part. Rotation can be performed using the mouse by left clicking on the center selection box and
moving the mouse to rotate the object. Again, you can hold down the "x",
"y", or "z" key while moving the mouse to rotate the part on just that axis.
To see a description of the properties common to all bodies follow
This property is specific to sphere only.
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