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experiment
| Author | SHA1 | Date | |
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bab4842b61 |
7 changed files with 366 additions and 661 deletions
592
Cargo.lock
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@ -1,6 +1,18 @@
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
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||||||
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||||||
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||||||
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|
||||||
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||||||
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||||||
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|
||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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|
||||||
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|
||||||
|
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|
||||||
|
|
||||||
[[package]]
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[[package]]
|
||||||
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|
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|
||||||
|
|
@ -349,20 +308,28 @@ dependencies = [
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||||||
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|
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|
||||||
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|
||||||
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|
||||||
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|
@ -377,33 +344,56 @@ dependencies = [
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|
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|
||||||
|
|
||||||
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|
||||||
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||||||
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|
||||||
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|
||||||
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||||||
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||||||
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|
||||||
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@ -443,52 +433,45 @@ dependencies = [
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|
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checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "unicode-xid"
|
name = "version_check"
|
||||||
version = "0.2.6"
|
version = "0.9.4"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
|
checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "wasip2"
|
name = "wasi"
|
||||||
version = "1.0.3+wasi-0.2.9"
|
version = "0.11.0+wasi-snapshot-preview1"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "20064672db26d7cdc89c7798c48a0fdfac8213434a1186e5ef29fd560ae223d6"
|
checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wide"
|
||||||
|
version = "0.7.15"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "89beec544f246e679fc25490e3f8e08003bc4bf612068f325120dad4cea02c1c"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
"wit-bindgen 0.57.1",
|
"bytemuck",
|
||||||
]
|
"safe_arch",
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wasip3"
|
|
||||||
version = "0.4.0+wasi-0.3.0-rc-2026-01-06"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "5428f8bf88ea5ddc08faddef2ac4a67e390b88186c703ce6dbd955e1c145aca5"
|
|
||||||
dependencies = [
|
|
||||||
"wit-bindgen 0.51.0",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wasm-encoder"
|
|
||||||
version = "0.244.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "990065f2fe63003fe337b932cfb5e3b80e0b4d0f5ff650e6985b1048f62c8319"
|
|
||||||
dependencies = [
|
|
||||||
"leb128fmt",
|
|
||||||
"wasmparser",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wasm-metadata"
|
|
||||||
version = "0.244.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "bb0e353e6a2fbdc176932bbaab493762eb1255a7900fe0fea1a2f96c296cc909"
|
|
||||||
dependencies = [
|
|
||||||
"anyhow",
|
|
||||||
"indexmap",
|
|
||||||
"wasm-encoder",
|
|
||||||
"wasmparser",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wasmparser"
|
|
||||||
version = "0.244.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "47b807c72e1bac69382b3a6fb3dbe8ea4c0ed87ff5629b8685ae6b9a611028fe"
|
|
||||||
dependencies = [
|
|
||||||
"bitflags",
|
|
||||||
"hashbrown 0.15.5",
|
|
||||||
"indexmap",
|
|
||||||
"semver",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wit-bindgen"
|
|
||||||
version = "0.51.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"
|
|
||||||
dependencies = [
|
|
||||||
"wit-bindgen-rust-macro",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wit-bindgen"
|
|
||||||
version = "0.57.1"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "1ebf944e87a7c253233ad6766e082e3cd714b5d03812acc24c318f549614536e"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wit-bindgen-core"
|
|
||||||
version = "0.51.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "ea61de684c3ea68cb082b7a88508a8b27fcc8b797d738bfc99a82facf1d752dc"
|
|
||||||
dependencies = [
|
|
||||||
"anyhow",
|
|
||||||
"heck",
|
|
||||||
"wit-parser",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wit-bindgen-rust"
|
|
||||||
version = "0.51.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "b7c566e0f4b284dd6561c786d9cb0142da491f46a9fbed79ea69cdad5db17f21"
|
|
||||||
dependencies = [
|
|
||||||
"anyhow",
|
|
||||||
"heck",
|
|
||||||
"indexmap",
|
|
||||||
"prettyplease",
|
|
||||||
"syn",
|
|
||||||
"wasm-metadata",
|
|
||||||
"wit-bindgen-core",
|
|
||||||
"wit-component",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wit-bindgen-rust-macro"
|
|
||||||
version = "0.51.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "0c0f9bfd77e6a48eccf51359e3ae77140a7f50b1e2ebfe62422d8afdaffab17a"
|
|
||||||
dependencies = [
|
|
||||||
"anyhow",
|
|
||||||
"prettyplease",
|
|
||||||
"proc-macro2",
|
|
||||||
"quote",
|
|
||||||
"syn",
|
|
||||||
"wit-bindgen-core",
|
|
||||||
"wit-bindgen-rust",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wit-component"
|
|
||||||
version = "0.244.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
|
|
||||||
dependencies = [
|
|
||||||
"anyhow",
|
|
||||||
"bitflags",
|
|
||||||
"indexmap",
|
|
||||||
"log",
|
|
||||||
"serde",
|
|
||||||
"serde_derive",
|
|
||||||
"serde_json",
|
|
||||||
"wasm-encoder",
|
|
||||||
"wasm-metadata",
|
|
||||||
"wasmparser",
|
|
||||||
"wit-parser",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wit-parser"
|
|
||||||
version = "0.244.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "ecc8ac4bc1dc3381b7f59c34f00b67e18f910c2c0f50015669dde7def656a736"
|
|
||||||
dependencies = [
|
|
||||||
"anyhow",
|
|
||||||
"id-arena",
|
|
||||||
"indexmap",
|
|
||||||
"log",
|
|
||||||
"semver",
|
|
||||||
"serde",
|
|
||||||
"serde_derive",
|
|
||||||
"serde_json",
|
|
||||||
"unicode-xid",
|
|
||||||
"wasmparser",
|
|
||||||
]
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "xenobalanus"
|
name = "xenobalanus"
|
||||||
version = "0.1.4"
|
version = "0.1.3"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
"delaunator",
|
"delaunator",
|
||||||
"geo",
|
"geo",
|
||||||
|
"geo-types",
|
||||||
|
"itertools 0.12.1",
|
||||||
"rand",
|
"rand",
|
||||||
"rayon",
|
"rayon",
|
||||||
|
"statrs",
|
||||||
]
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "zmij"
|
name = "zerocopy"
|
||||||
version = "1.0.21"
|
version = "0.7.32"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"
|
checksum = "74d4d3961e53fa4c9a25a8637fc2bfaf2595b3d3ae34875568a5cf64787716be"
|
||||||
|
dependencies = [
|
||||||
|
"zerocopy-derive",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "zerocopy-derive"
|
||||||
|
version = "0.7.32"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn 2.0.55",
|
||||||
|
]
|
||||||
|
|
|
||||||
18
Cargo.toml
18
Cargo.toml
|
|
@ -1,20 +1,16 @@
|
||||||
[package]
|
[package]
|
||||||
name = "xenobalanus"
|
name = "xenobalanus"
|
||||||
version = "0.2.0"
|
version = "0.1.3"
|
||||||
edition = "2021"
|
edition = "2021"
|
||||||
authors = ["Tobias Raayoni Last <tobias@randonauts.com>"]
|
|
||||||
repository = "https://github.com/randogoth/xenobalanus"
|
|
||||||
readme = "readme.md"
|
|
||||||
license = "MIT"
|
|
||||||
license-file = "LICENSE"
|
|
||||||
keywords = ["dtscan", "dbscan", "delfin", "cluster", "void", "delaunay", "astronomy", "attractor"]
|
|
||||||
categories = ["algorithms", "science", "mathematics"]
|
|
||||||
|
|
||||||
[lib]
|
[lib]
|
||||||
name = "xenobalanus"
|
name = "xenobalanus"
|
||||||
|
|
||||||
[dependencies]
|
[dependencies]
|
||||||
delaunator = "1.0.2"
|
delaunator = "1.0.2"
|
||||||
geo = "0.30"
|
geo = "0.28.0"
|
||||||
rand = "0.10"
|
geo-types = "0.7.13"
|
||||||
rayon = "1.12"
|
itertools = "0.12.1"
|
||||||
|
rand = "0.8.5"
|
||||||
|
rayon = "1.9.0"
|
||||||
|
statrs = "0.16.0"
|
||||||
|
|
|
||||||
21
LICENSE
21
LICENSE
|
|
@ -1,21 +0,0 @@
|
||||||
MIT License
|
|
||||||
|
|
||||||
Copyright (c) 2024 Tobias Raayoni Last
|
|
||||||
|
|
||||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
of this software and associated documentation files (the "Software"), to deal
|
|
||||||
in the Software without restriction, including without limitation the rights
|
|
||||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
copies of the Software, and to permit persons to whom the Software is
|
|
||||||
furnished to do so, subject to the following conditions:
|
|
||||||
|
|
||||||
The above copyright notice and this permission notice shall be included in all
|
|
||||||
copies or substantial portions of the Software.
|
|
||||||
|
|
||||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
||||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
||||||
SOFTWARE.
|
|
||||||
14
devbox.json
14
devbox.json
|
|
@ -1,14 +0,0 @@
|
||||||
{
|
|
||||||
"$schema": "https://raw.githubusercontent.com/jetify-com/devbox/0.16.0/.schema/devbox.schema.json",
|
|
||||||
"packages": ["rustup@latest"],
|
|
||||||
"shell": {
|
|
||||||
"init_hook": [
|
|
||||||
"echo 'Welcome to devbox!' > /dev/null"
|
|
||||||
],
|
|
||||||
"scripts": {
|
|
||||||
"test": [
|
|
||||||
"echo \"Error: no test specified\" && exit 1"
|
|
||||||
]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
58
devbox.lock
58
devbox.lock
|
|
@ -1,58 +0,0 @@
|
||||||
{
|
|
||||||
"lockfile_version": "1",
|
|
||||||
"packages": {
|
|
||||||
"github:NixOS/nixpkgs/nixpkgs-unstable": {
|
|
||||||
"last_modified": "2026-05-29T05:01:12Z",
|
|
||||||
"resolved": "github:NixOS/nixpkgs/e9a7635a57597d9754eccebdfc7045e6c8600e6b?lastModified=1780030872&narHash=sha256-u6WU%2Fyd%2Fo8iYQrHX3RAwO1hYa3LkoSL%2BWNQD0rJfJZQ%3D"
|
|
||||||
},
|
|
||||||
"rustup@latest": {
|
|
||||||
"last_modified": "2026-05-21T08:15:18Z",
|
|
||||||
"plugin_version": "0.0.1",
|
|
||||||
"resolved": "github:NixOS/nixpkgs/4a29d733e8a7d5b824c3d8c958a946a9867b3eb2#rustup",
|
|
||||||
"source": "devbox-search",
|
|
||||||
"version": "1.29.0",
|
|
||||||
"systems": {
|
|
||||||
"aarch64-darwin": {
|
|
||||||
"outputs": [
|
|
||||||
{
|
|
||||||
"name": "out",
|
|
||||||
"path": "/nix/store/nl70ay30nl2szm2g03xa0d7ai69dgbln-rustup-1.29.0",
|
|
||||||
"default": true
|
|
||||||
}
|
|
||||||
],
|
|
||||||
"store_path": "/nix/store/nl70ay30nl2szm2g03xa0d7ai69dgbln-rustup-1.29.0"
|
|
||||||
},
|
|
||||||
"aarch64-linux": {
|
|
||||||
"outputs": [
|
|
||||||
{
|
|
||||||
"name": "out",
|
|
||||||
"path": "/nix/store/684175m8xqfisacqw9rdc97fn2vpp0fj-rustup-1.29.0",
|
|
||||||
"default": true
|
|
||||||
}
|
|
||||||
],
|
|
||||||
"store_path": "/nix/store/684175m8xqfisacqw9rdc97fn2vpp0fj-rustup-1.29.0"
|
|
||||||
},
|
|
||||||
"x86_64-darwin": {
|
|
||||||
"outputs": [
|
|
||||||
{
|
|
||||||
"name": "out",
|
|
||||||
"path": "/nix/store/4hqncs7jnqc64z49r1w09b235074li9q-rustup-1.29.0",
|
|
||||||
"default": true
|
|
||||||
}
|
|
||||||
],
|
|
||||||
"store_path": "/nix/store/4hqncs7jnqc64z49r1w09b235074li9q-rustup-1.29.0"
|
|
||||||
},
|
|
||||||
"x86_64-linux": {
|
|
||||||
"outputs": [
|
|
||||||
{
|
|
||||||
"name": "out",
|
|
||||||
"path": "/nix/store/dpqx1vygrisrvnnwgym1226x317vqp4a-rustup-1.29.0",
|
|
||||||
"default": true
|
|
||||||
}
|
|
||||||
],
|
|
||||||
"store_path": "/nix/store/dpqx1vygrisrvnnwgym1226x317vqp4a-rustup-1.29.0"
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
@ -44,9 +44,7 @@ fn main() {
|
||||||
println!("Generated Delaunay triangulation");
|
println!("Generated Delaunay triangulation");
|
||||||
|
|
||||||
// Pre-process triangles
|
// Pre-process triangles
|
||||||
// 1 - attractors, 2 - voids, 0 - both
|
xeno.preprocess(0);
|
||||||
// true/false - parallel processing
|
|
||||||
xeno.preprocess(0, false);
|
|
||||||
|
|
||||||
// Execute delfin function with the generated GeometryData
|
// Execute delfin function with the generated GeometryData
|
||||||
let min_area: f32 = 1000.0; // threshold for voidness
|
let min_area: f32 = 1000.0; // threshold for voidness
|
||||||
|
|
|
||||||
314
src/lib.rs
314
src/lib.rs
|
|
@ -1,30 +1,6 @@
|
||||||
/*
|
|
||||||
MIT License
|
|
||||||
|
|
||||||
Copyright (c) 2024 Tobias Raayoni Last
|
|
||||||
|
|
||||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
of this software and associated documentation files (the "Software"), to deal
|
|
||||||
in the Software without restriction, including without limitation the rights
|
|
||||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
copies of the Software, and to permit persons to whom the Software is
|
|
||||||
furnished to do so, subject to the following conditions:
|
|
||||||
|
|
||||||
The above copyright notice and this permission notice shall be included in all
|
|
||||||
copies or substantial portions of the Software.
|
|
||||||
|
|
||||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
||||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
||||||
SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
use delaunator::{triangulate, Point as DelaunatorPoint};
|
use delaunator::{triangulate, Point as DelaunatorPoint};
|
||||||
use geo::{Point as GeoPoint, Coord};
|
use geo::{Point as GeoPoint, Coord};
|
||||||
use rand::RngExt;
|
use rand::Rng;
|
||||||
use rayon::prelude::*;
|
use rayon::prelude::*;
|
||||||
use std::cmp::{min, max};
|
use std::cmp::{min, max};
|
||||||
use std::collections::{HashMap, HashSet};
|
use std::collections::{HashMap, HashSet};
|
||||||
|
|
@ -64,12 +40,6 @@ impl Point {
|
||||||
bearing
|
bearing
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn bearing_rad(&self, point: Point) -> f32 {
|
|
||||||
let delta_x = point.x - self.x;
|
|
||||||
let delta_y = point.y - self.y;
|
|
||||||
delta_y.atan2(delta_x)
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
impl From<Point> for Coord<f32> {
|
impl From<Point> for Coord<f32> {
|
||||||
|
|
@ -113,6 +83,7 @@ pub struct GeometryData {
|
||||||
pub edge_to_triangles: HashMap<Edge, Vec<usize>>, // Maps an edge to triangle indices
|
pub edge_to_triangles: HashMap<Edge, Vec<usize>>, // Maps an edge to triangle indices
|
||||||
pub edge_lengths: HashMap<Edge, f32>, // Edge lengths
|
pub edge_lengths: HashMap<Edge, f32>, // Edge lengths
|
||||||
pub vertex_connections: HashMap<usize, HashSet<usize>>, // Direct connections between vertices, for DTSCAN
|
pub vertex_connections: HashMap<usize, HashSet<usize>>, // Direct connections between vertices, for DTSCAN
|
||||||
|
pub triangle_blacklist: HashSet<usize>, // invalidated triangles
|
||||||
}
|
}
|
||||||
|
|
||||||
impl GeometryData {
|
impl GeometryData {
|
||||||
|
|
@ -121,7 +92,8 @@ impl GeometryData {
|
||||||
triangles: Vec::new(),
|
triangles: Vec::new(),
|
||||||
edge_to_triangles: HashMap::new(),
|
edge_to_triangles: HashMap::new(),
|
||||||
edge_lengths: HashMap::new(),
|
edge_lengths: HashMap::new(),
|
||||||
vertex_connections: HashMap::new(), // Adjusted for DTSCAN
|
vertex_connections: HashMap::new(),
|
||||||
|
triangle_blacklist: HashSet::new(),
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
fn add_triangle(&mut self, index: usize, points: &[Point], tri_idx: &[usize], types: usize) {
|
fn add_triangle(&mut self, index: usize, points: &[Point], tri_idx: &[usize], types: usize) {
|
||||||
|
|
@ -190,6 +162,10 @@ impl GeometryData {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
pub fn remove_triangle(&mut self, triangle_index: usize) {
|
||||||
|
self.triangle_blacklist.insert(triangle_index);
|
||||||
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
pub struct Xenobalanus {
|
pub struct Xenobalanus {
|
||||||
|
|
@ -227,26 +203,53 @@ impl Xenobalanus {
|
||||||
self.points = points
|
self.points = points
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn triangle(&self, index: usize) -> TriangleData {
|
pub fn triangle(&self, index: usize) -> Option<&TriangleData> {
|
||||||
self.geometry_data.triangles[index].clone()
|
if !self.geometry_data.triangle_blacklist.contains(&index) {
|
||||||
|
Some(&self.geometry_data.triangles[index])
|
||||||
|
} else {
|
||||||
|
None
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn triangle_data(&self) -> &Vec<TriangleData> {
|
pub fn triangle_data(&self) -> Vec<TriangleData> {
|
||||||
&self.geometry_data.triangles
|
self.geometry_data.triangles.iter()
|
||||||
|
.enumerate()
|
||||||
|
.filter_map(|(index, triangle)| {
|
||||||
|
if self.geometry_data.triangle_blacklist.contains(&index) {
|
||||||
|
None // Skip blacklisted triangles
|
||||||
|
} else {
|
||||||
|
Some(triangle.clone()) // Include this triangle
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.collect()
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn triangle_area(&self, index: usize) -> f32 {
|
||||||
|
self.triangle(index).map_or(0.0, |tri| tri.area.unwrap_or_default())
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn triangles_flat(&self) -> Vec<usize> {
|
pub fn triangles_flat(&self) -> Vec<usize> {
|
||||||
self.triangulation.clone()
|
let mut filtered_vertices = Vec::new();
|
||||||
|
for (i, chunk) in self.triangulation.chunks(3).enumerate() {
|
||||||
|
// Skip this triangle if it's blacklisted
|
||||||
|
if self.geometry_data.triangle_blacklist.contains(&i) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
filtered_vertices.extend_from_slice(chunk);
|
||||||
|
}
|
||||||
|
filtered_vertices
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn triangle_vertices(&self) -> Vec<Vec<usize>> {
|
pub fn triangle_vertices(&self) -> Vec<Vec<usize>> {
|
||||||
self.triangulation.chunks(3).map(|chunk| {
|
let triangulation = self.triangles_flat();
|
||||||
|
triangulation.chunks(3).map(|chunk| {
|
||||||
chunk.iter().map(|&index| index).collect()
|
chunk.iter().map(|&index| index).collect()
|
||||||
}).collect()
|
}).collect()
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn triangle_coordinates(&self) -> Vec<Vec<(f32, f32)>> {
|
pub fn triangle_coordinates(&self) -> Vec<Vec<(f32, f32)>> {
|
||||||
self.triangulation.chunks(3).map(|chunk| {
|
let triangulation = self.triangles_flat();
|
||||||
|
triangulation.chunks(3).map(|chunk| {
|
||||||
chunk.iter().map(|&index| {
|
chunk.iter().map(|&index| {
|
||||||
let point = &self.points[index];
|
let point = &self.points[index];
|
||||||
(point.x, point.y) // Each point is represented by a Vec<f32> of its coordinates
|
(point.x, point.y) // Each point is represented by a Vec<f32> of its coordinates
|
||||||
|
|
@ -258,6 +261,45 @@ impl Xenobalanus {
|
||||||
self.triangulation = vertices
|
self.triangulation = vertices
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/// Helper function to calculate the sign of an area defined by three points.
|
||||||
|
fn sign(p1: &Point, p2: &Point, p3: &Point) -> f32 {
|
||||||
|
(p1.x - p3.x) * (p2.y - p3.y) - (p2.x - p3.x) * (p1.y - p3.y)
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Determines if a point is inside a triangle.
|
||||||
|
fn point_in_triangle(pt: &Point, v1: &Point, v2: &Point, v3: &Point) -> bool {
|
||||||
|
let d1 = Self::sign(pt, v1, v2);
|
||||||
|
let d2 = Self::sign(pt, v2, v3);
|
||||||
|
let d3 = Self::sign(pt, v3, v1);
|
||||||
|
|
||||||
|
let has_neg = d1 < 0.0 || d2 < 0.0 || d3 < 0.0;
|
||||||
|
let has_pos = d1 > 0.0 || d2 > 0.0 || d3 > 0.0;
|
||||||
|
|
||||||
|
!(has_neg && has_pos) // True if the point is inside the triangle
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Finds the triangle that contains the given point.
|
||||||
|
pub fn find_containing_triangle(&self, new_point: &Point) -> Option<usize> {
|
||||||
|
for (index, triangle) in self.geometry_data.triangles.iter().enumerate() {
|
||||||
|
// Skip if the triangle is blacklisted
|
||||||
|
if self.geometry_data.triangle_blacklist.contains(&index) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Retrieve the vertices of the triangle
|
||||||
|
let v1 = &self.points[triangle.vertices[0]];
|
||||||
|
let v2 = &self.points[triangle.vertices[1]];
|
||||||
|
let v3 = &self.points[triangle.vertices[2]];
|
||||||
|
|
||||||
|
// Check if the new_point is inside the current triangle
|
||||||
|
if Self::point_in_triangle(new_point, v1, v2, v3) {
|
||||||
|
return Some(index); // Return the index of the containing triangle
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
None // Return None if no containing triangle is found
|
||||||
|
}
|
||||||
|
|
||||||
// Additional methods moved into GeometryProcessor, operating on self.geometry_data
|
// Additional methods moved into GeometryProcessor, operating on self.geometry_data
|
||||||
pub fn random_points(&mut self, center: (f32, f32), side_length: f32, num_points: u32) {
|
pub fn random_points(&mut self, center: (f32, f32), side_length: f32, num_points: u32) {
|
||||||
// generate random points in a square
|
// generate random points in a square
|
||||||
|
|
@ -265,10 +307,10 @@ impl Xenobalanus {
|
||||||
let max_x = center.0 + side_length / 2.0;
|
let max_x = center.0 + side_length / 2.0;
|
||||||
let min_y = center.1 - side_length / 2.0;
|
let min_y = center.1 - side_length / 2.0;
|
||||||
let max_y = center.1 + side_length / 2.0;
|
let max_y = center.1 + side_length / 2.0;
|
||||||
let mut rng = rand::rng();
|
let mut rng: rand::prelude::ThreadRng = rand::thread_rng();
|
||||||
for _ in 0..num_points {
|
for _ in 0..num_points {
|
||||||
let x = min_x + rng.random_range(0.0..=1.0) as f32 * ( max_x - min_x);
|
let x = min_x + rng.gen_range(0.0..=1.0) as f32 * ( max_x - min_x);
|
||||||
let y: f32 = min_y + rng.random_range(0.0..=1.0) as f32 * ( max_y - min_y);
|
let y: f32 = min_y + rng.gen_range(0.0..=1.0) as f32 * ( max_y - min_y);
|
||||||
self.points.push(Point {x, y});
|
self.points.push(Point {x, y});
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
@ -277,38 +319,33 @@ impl Xenobalanus {
|
||||||
&self.geometry_data.edge_lengths
|
&self.geometry_data.edge_lengths
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn delaunay(&mut self) {
|
fn triangulate(&self, points: &Vec<Point>) -> Vec<usize> {
|
||||||
// Convert geo::Point to delaunator::Point for triangulation
|
|
||||||
let delaunator_points: Vec<DelaunatorPoint> = self.points.iter()
|
let delaunator_points: Vec<DelaunatorPoint> = points.iter()
|
||||||
.map(|point: &Point| DelaunatorPoint { x: point.x as f64, y: point.y as f64 })
|
.map(|point: &Point| DelaunatorPoint { x: point.x as f64, y: point.y as f64 })
|
||||||
.collect();
|
.collect();
|
||||||
|
|
||||||
// Perform Delaunay triangulation
|
// Perform Delaunay triangulation
|
||||||
let result: delaunator::Triangulation = triangulate(&delaunator_points);
|
let result: delaunator::Triangulation = triangulate(&delaunator_points);
|
||||||
self.triangulation = result.triangles
|
result.triangles
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn preprocess(&mut self, types: usize, parallel: bool) {
|
pub fn delaunay(&mut self) {
|
||||||
if parallel {
|
self.triangulation = self.triangulate(&self.points);
|
||||||
|
}
|
||||||
|
|
||||||
let geometry_data = Arc::new(Mutex::new(GeometryData::new()));
|
pub fn preprocess(&mut self, types: usize) {
|
||||||
|
let geometry_data = Arc::new(Mutex::new(GeometryData::new()));
|
||||||
|
|
||||||
self.triangulation.par_chunks(3).enumerate().for_each(|(index, tri_idx)| {
|
self.triangulation.par_chunks(3).enumerate().for_each(|(index, tri_idx)| {
|
||||||
let gd = geometry_data.clone(); // Clone Arc for use in each thread, not the data itself
|
let gd = geometry_data.clone(); // Clone Arc for use in each thread, not the data itself
|
||||||
|
|
||||||
// Perform locked update
|
// Perform locked update
|
||||||
let mut gd_lock = gd.lock().unwrap();
|
let mut gd_lock = gd.lock().unwrap();
|
||||||
gd_lock.add_triangle(index, &self.points, tri_idx, types);
|
gd_lock.add_triangle(index, &self.points, tri_idx, types);
|
||||||
});
|
});
|
||||||
|
|
||||||
self.geometry_data = Arc::try_unwrap(geometry_data).unwrap().into_inner().unwrap();
|
self.geometry_data = Arc::try_unwrap(geometry_data).unwrap().into_inner().unwrap();
|
||||||
} else {
|
|
||||||
|
|
||||||
self.triangulation.chunks(3).enumerate().for_each(|(index, tri_idx)| {
|
|
||||||
self.geometry_data.add_triangle(index, &self.points, tri_idx, types);
|
|
||||||
});
|
|
||||||
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn delfin(
|
pub fn delfin(
|
||||||
|
|
@ -320,7 +357,7 @@ impl Xenobalanus {
|
||||||
let mut processed_triangles: HashSet<usize> = HashSet::new();
|
let mut processed_triangles: HashSet<usize> = HashSet::new();
|
||||||
|
|
||||||
// Create a sorted list of triangles by their terminal edge length that meet the minimum distance criteria.
|
// Create a sorted list of triangles by their terminal edge length that meet the minimum distance criteria.
|
||||||
let mut triangles_sorted: Vec<(usize, f32)> = self.geometry_data.triangles.iter()
|
let mut triangles_sorted: Vec<(usize, f32)> = self.triangle_data().iter()
|
||||||
.filter_map(|t| t.terminal_edge.and_then(|e| self.geometry_data.edge_lengths.get(&e).map(|&l| (t.index, l))))
|
.filter_map(|t| t.terminal_edge.and_then(|e| self.geometry_data.edge_lengths.get(&e).map(|&l| (t.index, l))))
|
||||||
.filter(|&(_, length)| length >= min_distance)
|
.filter(|&(_, length)| length >= min_distance)
|
||||||
.collect();
|
.collect();
|
||||||
|
|
@ -344,7 +381,7 @@ impl Xenobalanus {
|
||||||
processed_triangles.insert(triangle_index);
|
processed_triangles.insert(triangle_index);
|
||||||
|
|
||||||
// Get all edges of the current triangle
|
// Get all edges of the current triangle
|
||||||
if let Some(edges) = self.geometry_data.triangles.get(triangle_index).map(|t| t.get_edges()) {
|
if let Some(edges) = self.triangle(triangle_index).map(|t| t.get_edges()) {
|
||||||
for edge in edges {
|
for edge in edges {
|
||||||
|
|
||||||
// Add all edges to check for neighbors to expand
|
// Add all edges to check for neighbors to expand
|
||||||
|
|
@ -367,8 +404,13 @@ impl Xenobalanus {
|
||||||
continue;
|
continue;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// Skip if triangle is blacklisted
|
||||||
|
if self.geometry_data.triangle_blacklist.contains(&neighbor_index) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
// Get neighbor triangle
|
// Get neighbor triangle
|
||||||
if let Some(neighbor_triangle) = self.geometry_data.triangles.get(neighbor_index) {
|
if let Some(neighbor_triangle) = self.triangle(neighbor_index) {
|
||||||
|
|
||||||
// Get neighbor triangle's terminal edge
|
// Get neighbor triangle's terminal edge
|
||||||
if let Some(neighbor_edge) = neighbor_triangle.terminal_edge {
|
if let Some(neighbor_edge) = neighbor_triangle.terminal_edge {
|
||||||
|
|
@ -397,7 +439,7 @@ impl Xenobalanus {
|
||||||
// Retain only those sets that meet the minimum area criteria
|
// Retain only those sets that meet the minimum area criteria
|
||||||
void_polygons.retain(|set| {
|
void_polygons.retain(|set| {
|
||||||
set.iter()
|
set.iter()
|
||||||
.filter_map(|&i| self.geometry_data.triangles[i].area)
|
.filter_map(|&i| Some(self.triangle_area(i)))
|
||||||
.sum::<f32>() >= min_area
|
.sum::<f32>() >= min_area
|
||||||
});
|
});
|
||||||
|
|
||||||
|
|
@ -455,141 +497,3 @@ impl Xenobalanus {
|
||||||
clusters
|
clusters
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
#[cfg(test)]
|
|
||||||
mod tests {
|
|
||||||
use super::*;
|
|
||||||
|
|
||||||
// --- Point ---
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn point_distance_3_4_5() {
|
|
||||||
let a = Point::new(0.0, 0.0);
|
|
||||||
let b = Point::new(3.0, 4.0);
|
|
||||||
assert!((a.distance(b) - 5.0).abs() < 1e-5);
|
|
||||||
}
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn point_bearing_east_is_zero() {
|
|
||||||
let origin = Point::new(0.0, 0.0);
|
|
||||||
let east = Point::new(1.0, 0.0);
|
|
||||||
// delta_y=0, delta_x=1 → atan2(0,1)=0° → bearing=0°
|
|
||||||
assert!((origin.bearing(east) - 0.0).abs() < 1e-4);
|
|
||||||
}
|
|
||||||
|
|
||||||
// --- random_points ---
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn random_points_count_and_bounds() {
|
|
||||||
let mut xb = Xenobalanus::new();
|
|
||||||
xb.random_points((0.0, 0.0), 10.0, 100);
|
|
||||||
let pts = xb.points();
|
|
||||||
assert_eq!(pts.len(), 100);
|
|
||||||
for (x, y) in pts {
|
|
||||||
assert!(x >= -5.0 && x <= 5.0, "x={x} out of [-5, 5]");
|
|
||||||
assert!(y >= -5.0 && y <= 5.0, "y={y} out of [-5, 5]");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// --- delaunay ---
|
|
||||||
|
|
||||||
fn unit_square() -> Vec<Point> {
|
|
||||||
vec![
|
|
||||||
Point::new(0.0, 0.0),
|
|
||||||
Point::new(1.0, 0.0),
|
|
||||||
Point::new(1.0, 1.0),
|
|
||||||
Point::new(0.0, 1.0),
|
|
||||||
]
|
|
||||||
}
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn delaunay_four_points_two_triangles() {
|
|
||||||
let mut xb = Xenobalanus::new();
|
|
||||||
xb.set_points(unit_square());
|
|
||||||
xb.delaunay();
|
|
||||||
// 4 convex points → 2 triangles → 6 indices
|
|
||||||
assert_eq!(xb.triangles_flat().len(), 6);
|
|
||||||
}
|
|
||||||
|
|
||||||
// --- preprocess ---
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn preprocess_sequential_builds_edges() {
|
|
||||||
let mut xb = Xenobalanus::new();
|
|
||||||
xb.set_points(unit_square());
|
|
||||||
xb.delaunay();
|
|
||||||
xb.preprocess(0, false);
|
|
||||||
// unit square Delaunay: 4 boundary edges + 1 diagonal = 5
|
|
||||||
assert_eq!(xb.edge_lengths().len(), 5);
|
|
||||||
}
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn preprocess_parallel_matches_sequential() {
|
|
||||||
let mut xb_seq = Xenobalanus::new();
|
|
||||||
xb_seq.set_points(unit_square());
|
|
||||||
xb_seq.delaunay();
|
|
||||||
xb_seq.preprocess(0, false);
|
|
||||||
|
|
||||||
let mut xb_par = Xenobalanus::new();
|
|
||||||
xb_par.set_points(unit_square());
|
|
||||||
xb_par.delaunay();
|
|
||||||
xb_par.preprocess(0, true);
|
|
||||||
|
|
||||||
assert_eq!(xb_seq.edge_lengths().len(), xb_par.edge_lengths().len());
|
|
||||||
}
|
|
||||||
|
|
||||||
// --- dtscan ---
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn dtscan_finds_cluster_in_grid() {
|
|
||||||
let mut xb = Xenobalanus::new();
|
|
||||||
// 3×3 grid with spacing 1.0; diagonal ≈ 1.414
|
|
||||||
let pts: Vec<Point> = (0..3)
|
|
||||||
.flat_map(|i| (0..3).map(move |j| Point::new(i as f32, j as f32)))
|
|
||||||
.collect();
|
|
||||||
xb.set_points(pts);
|
|
||||||
xb.delaunay();
|
|
||||||
xb.preprocess(0, false);
|
|
||||||
// max_closeness=1.5 covers all edges (max diagonal ≈ 1.414)
|
|
||||||
let clusters = xb.dtscan(2, 1.5);
|
|
||||||
assert!(!clusters.is_empty());
|
|
||||||
}
|
|
||||||
|
|
||||||
// --- delfin ---
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn delfin_smoke_test() {
|
|
||||||
let mut xb = Xenobalanus::new();
|
|
||||||
xb.random_points((0.0, 0.0), 100.0, 200);
|
|
||||||
xb.delaunay();
|
|
||||||
xb.preprocess(2, false);
|
|
||||||
// just verify it runs without panic
|
|
||||||
let _voids = xb.delfin(0.0, 0.0);
|
|
||||||
}
|
|
||||||
|
|
||||||
// --- readme example ---
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn readme_example_pipeline() {
|
|
||||||
// Mirrors the workflow shown in the README exactly.
|
|
||||||
let dots: u32 = 10000;
|
|
||||||
let side_length: f32 = 10000.0;
|
|
||||||
let mut xeno = Xenobalanus::new();
|
|
||||||
xeno.random_points((0.0, 0.0), side_length, dots);
|
|
||||||
|
|
||||||
xeno.delaunay();
|
|
||||||
xeno.preprocess(0, false);
|
|
||||||
|
|
||||||
let min_area: f32 = 1000.0;
|
|
||||||
let min_distance: f32 = 200.0;
|
|
||||||
let void_polygons: Vec<HashSet<usize>> = xeno.delfin(min_area, min_distance);
|
|
||||||
|
|
||||||
let min_pts: usize = 5;
|
|
||||||
let max_closeness: f32 = 100.5;
|
|
||||||
let clusters: Vec<Vec<usize>> = xeno.dtscan(min_pts, max_closeness);
|
|
||||||
|
|
||||||
// With 10 000 uniform random points both algorithms should find results.
|
|
||||||
assert!(!void_polygons.is_empty(), "delfin found no voids");
|
|
||||||
assert!(!clusters.is_empty(), "dtscan found no clusters");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue