JuliaGeometry / JuliaGeometry/Rotations.jl
Change the order of `QuatRotation` from `(w,x,y,z)` to `(x,y,z,w)`
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v2.0.0
- Dominant language
- Julia
- Stars
- 188
- Forks
- 45
- PR merge metrics
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Description
To be able to set the orientation of an object in a 3D scene of Makie.jl I use the following code:
q0 = Rotations.params(QuatRotation(state.orient)) # returns an SVector in the order w,x,y,z
quat[] = Quaternionf0(q0[2], q0[3], q0[4], q0[1]) # the constructor expects the order x,y,z,w
This looks overly complicated to me. Can't this be done easier?
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by tracing the named QuatRotation and Rotations.params APIs, then compare their parameter order with the Quaternionf0 constructor used in the Makie example. Review the 12-comment discussion for the intended compatibility and API outcome. Done means the agreed quaternion ordering is implemented consistently and the example no longer needs manual reordering.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- computer-graphics
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100