metarmask
commented
3 years ago Thanks, yes, I was converting them to degrees.
It appears the rotation on the joint is only for defining the relationship between the rotations of the connected bodies. I can rotate the joint on the crane arm like the arm itself is rotated, so it looks like the limits would change, but it behaves identically.
Mystery triplets
| They change very slightly when changing the rotation on the same circle, like I described above. They change much more as I change the X rotation (to the sides of the vehicle) on the crane. I haven't confirmed they are actually triplets each related to a shape. | editor x | shape | a | b | c |
|---|---|---|---|---|---|
| 0.00 | 0 | +1.00 | +0.00 | +0.00 | |
| 10.0 | 0 | +0.94 | +0.17 | +0.30 | |
| 0.00 | 1 | +1.00 | +0.00 | +0.00 | |
| 10.0 | 1 | +0.94 | -0.34 | +0.06 |
Rotations of connected shapes
| shape | x | y | z |
|---|---|---|---|
| 0 | +10.0 | -180 | +0.00 |
| 1 | -90.0 | -180 | +0.00 |
Rotation on hinge and prismatic joints are not right, for example the joints on the front loader in Marina have a rotation of (-60 0 0) instead of (0 -20 0), other joints are rotated 90º from the right position. Limits on prismatic joints are wrong, those limits should be in meters. Maybe you are converting the values to degrees?