66 lines
2.8 KiB
Markdown
66 lines
2.8 KiB
Markdown
# This needs a title
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## Highest priority:
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- Implement the continuous parametric transformations from 2020-05-07
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in my notes. This will require some new abstractions.
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- Get identical or near-identical meshes to `ramhorn_branch` from
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Python. (Should just be a matter of tweaking parameters.)
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- Look at performance.
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- Start at `to_mesh_iter()`. The cost of small appends/connects
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seems to be killing performance.
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- `connect()` is a big performance hot-spot: 85% of total time in
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one test, around 51% in `extend()`, 33% in `clone()`. It seems
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like I should be able to share geometry with the `Rc` (like noted
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above), defer copying until actually needed, and pre-allocate the
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vector to its size (which should be easy to compute).
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- See `automata_scratch/examples.py` and implement some of the tougher
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examples.
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- `twisty_torus`, `spiral_nested_2`, & `spiral_nested_3` are all
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that remain. To do them, I need to compose transformations (not
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in the matrix sense), but I also probably need to produce
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RuleEvals which always have `xf` of identity transformation since
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the Python code does not 'inherit' transforms unless I tell it to.
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## Important but less critical:
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- Docs on modules
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- Compute global scale factor, and perhaps pass it to a rule (to
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eventually be used for, perhaps, adaptive subdivision). Note that
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one can find the scale factors by taking the length of the first 3
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columns of the transform matrix (supposedly).
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- swept-isocontour stuff from
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`/mnt/dev/graphics_misc/isosurfaces_2018_2019/spiral*.py`. This
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will probably require that I figure out parametric curves
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- Make an example that is more discrete-automata, less
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approximation-of-space-curve.
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- Catch-alls:
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- Grep for all TODOs in code, really.
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- Look at everything in `README.md` in `automata_scratch`.
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## If I'm bored:
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- Look in https://www.nalgebra.org/quick_reference/# for "pour
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obtain". Can I fix this somehow? Looks like a French-ism that made
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its way in.
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- Multithread! This looks very task-parallel anywhere that I branch.
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- Would being able to name a rule node (perhaps conditionally under
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some compile-time flag) help for debugging?
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- Use an actual logging framework.
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- Take a square. Wrap it around to a torus. Now add a twist (about
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the axis that is normal to the square). This is simple, but it looks
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pretty cool.
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- How can I take tangled things like the cinquefoil and produce more
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'iterative' versions that still weave around?
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## Research Areas
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## Reflections & Quick Notes
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- Generalizing to space curves moves this away from the "discrete
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automata" roots, but it still ends up needing the machinery I made
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for discrete automata.
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- If you *pre* multiply a transformation: you are transforming the
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entire global space. If you *post* multiply: you are transforming
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the current local space. |