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more wheel updates #93

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Merged
merged 10 commits into from
Aug 6, 2024
Merged

more wheel updates #93

merged 10 commits into from
Aug 6, 2024

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baggepinnen
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@baggepinnen baggepinnen commented Jun 25, 2024

Lots of mysteries here

  • The y coordinate of world.n could not be set, so the result was that n = [0, -1, -1]
  • After some hacking around, I could eventually get n correct, but the wheel goes in the opposite direction compared to modelica
  • If I use Ra = ori(frame_a, true) and include Ra.w ~ Rarot.w, I get a completely different solution

The last two opints were due to a convention difference with modelica, fixed by negating the angle in axis_rotation. The first issue is more concerning

@baggepinnen baggepinnen merged commit 38abc92 into main Aug 6, 2024
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@baggepinnen baggepinnen deleted the wheelies branch August 6, 2024 11:51
baggepinnen added a commit that referenced this pull request Aug 8, 2024
* more wheel updates

* wheel solves but goes in the wrong direction

* test passes with world.n hacks

* finishing touches

* try global scoping n

* set world parameter defaults using keyword

* redefine defaults again

* scalarize world n

* switch to wheel rolling on xz plane

* move wheel tests to own file

rm using Plots
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