prosha/README.md

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# This needs a title
## Highest priority:
- Clean up `ramhorn_branch` because it's fugly.
- See `automata_scratch/examples.py` and implement some of the tougher
examples.
- `spiral_nested_2` & `spiral_nested_3` (how to compose
efficiently?)
- `twisty_torus`
## Important but less critical:
- Elegance & succinctness (my recent closure work may help with this):
- What patterns can I factor out? I do some things regularly, like:
the clockwise boundaries, the zigzag connections.
- Declarative macro to shorten this `Tag::Parent`, `Tag::Body`
nonsense - and perhaps force to groups of 3? Does this have any
value, though, over just making helper functions like `p(...)` and
`b(...)`?
- I'm near certain a declarative macros can simplify some bigger
things like my patterns with closures (e.g. the Y combinator like
method for recursive calls).
- Docs on modules
- Look at performance.
- Start at `to_mesh_iter()`. The cost of small appends/connects
seems to be killing performance.
- `connect()` is a big performance hot-spot: 85% of total time in
one test, around 51% in `extend()`, 33% in `clone()`. It seems
like I should be able to share geometry with the `Rc` (like noted
above), defer copying until actually needed, and pre-allocate the
vector to its size (which should be easy to compute).
- Compute global scale factor, and perhaps pass it to a rule (to
eventually be used for, perhaps, adaptive subdivision)
- swept-isocontour stuff from
`/mnt/dev/graphics_misc/isosurfaces_2018_2019/spiral*.py`
- Catch-alls:
- Grep for all TODOs in code, really.
- Look at everything in `README.md` in `automata_scratch`.
## If I'm bored:
- Fix links in tri_mesh docs that use relative paths & do a PR?
- Look in https://www.nalgebra.org/quick_reference/# for "pour
obtain". Can I fix this somehow? Looks like a French-ism that made
its way in.
- Multithread! This looks very task-parallel anywhere that I branch.
- Would being able to name a rule node (perhaps conditionally under
some compile-time flag) help for debugging?
- Use an actual logging framework.