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Say how to run the prototype, examples, and tests

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Aaron Fenyes 2024-11-25 01:37:48 -08:00
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README.md
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@ -17,3 +17,51 @@ Note that currently this is just the barest beginnings of the project, more of a
* Able to run in browser (so implemented in WASM-compatible language) * Able to run in browser (so implemented in WASM-compatible language)
* Produce scalable graphics of 3D diagrams, and maybe STL files (or other fabricatable file format) as well. * Produce scalable graphics of 3D diagrams, and maybe STL files (or other fabricatable file format) as well.
## Prototype
The latest prototype is in the folder `app-proto`. It includes both a user interface and a numerical constraint-solving engine.
### Install the prerequisites
1. Install [`rustup`](https://rust-lang.github.io/rustup/): the officially recommended Rust toolchain manager
* It's available on Ubuntu as a [Snap](https://snapcraft.io/rustup)
2. Call `rustup default stable` to "download the latest stable release of Rust and set it as your default toolchain"
* If you forget, the `rustup` [help system](https://github.com/rust-lang/rustup/blob/d9b3601c3feb2e88cf3f8ca4f7ab4fdad71441fd/src/errors.rs#L109-L112) will remind you
3. Call `rustup target add wasm32-unknown-unknown` to add the [most generic 32-bit WebAssembly target](https://doc.rust-lang.org/nightly/rustc/platform-support/wasm32-unknown-unknown.html)
4. Call `cargo install wasm-pack` to install the [WebAssembly toolchain](https://rustwasm.github.io/docs/wasm-pack/)
5. Call `cargo install trunk` to install the [Trunk](https://trunkrs.dev/) web-build tool
6. Add the `.cargo/bin` folder in your home directory to your executable search path
* This lets you call Trunk, and other tools installed by Cargo, without specifying their paths
* On POSIX systems, the search path is stored in the `PATH` environment variable
### Play with the prototype
1. Go into the `app-proto` folder
2. Call `trunk serve --release` to build and serve the prototype
* *The crates the prototype depends on will be downloaded and served automatically*
* *For a faster build, at the expense of a much slower prototype, you can call `trunk serve` without the `--release` flag*
3. In a web browser, visit one of the URLs listed under the message `INFO 📡 server listening at:`
* *Touching any file in the `app-proto` folder will make Trunk rebuild and live-reload the prototype*
4. Press *ctrl+C* in the shell where Trunk is running to stop serving the prototype
### Run the engine on some example problems
1. Go into the `app-proto` folder
2. Call `./run-examples`
* *For each example problem, the engine will print the value of the loss function at each optimization step*
* *The first example that prints is the same as the Irisawa hexlet example from the Julia version of the engine prototype. If you go into `engine-proto/gram-test`, launch Julia, and then*
```julia
include("irisawa-hexlet.jl")
for (step, scaled_loss) in enumerate(history_alt.scaled_loss)
println(rpad(step-1, 4), " | ", scaled_loss)
end
```
*you should see that it prints basically the same loss history until the last few steps, when the lower default precision of the Rust engine really starts to show*
### Run the automated tests
1. Go into the `app-proto` folder
2. Call `cargo test`

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app-proto/run-examples
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#!/bin/bash
# run all Cargo examples, as described here: # run all Cargo examples, as described here:
# #
# Karol Kuczmarski. "Add examples to your Rust libraries" # Karol Kuczmarski. "Add examples to your Rust libraries"