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047c5f5656
Converted turf-transform-scale to Typescript. Avoiding in house type AllGeoJSON. Some refactoring to accomodate stricter typing where existing code was potentially vulnerable at runtime. turf-distance README was out of date so regenerating that too.
80 lines
2.5 KiB
TypeScript
80 lines
2.5 KiB
TypeScript
import { Feature, FeatureCollection } from "geojson";
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import fs from "fs";
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import path from "path";
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import { fileURLToPath } from "url";
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import { loadJsonFileSync } from "load-json-file";
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import Benchmark, { Event } from "benchmark";
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import { Coord, Corners } from "@turf/helpers";
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import { transformScale as scale } from "./index.js";
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const __dirname = path.dirname(fileURLToPath(import.meta.url));
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const directory = path.join(__dirname, "test", "in") + path.sep;
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const fixtures = fs.readdirSync(directory).map((filename) => {
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return {
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name: path.parse(filename).name,
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geojson: loadJsonFileSync(directory + filename) as
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| FeatureCollection
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| Feature,
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};
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});
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/**
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* Single Process Benchmark
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*
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* line: 3.586ms
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* multiLine: 0.228ms
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* multiPoint: 3.490ms
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* multiPolygon: 2.211ms
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* no-scale: 0.336ms
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* point: 0.038ms
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* poly-double: 2.511ms
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* poly-half: 0.176ms
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* polygon-with-hole: 1.094ms
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* polygon: 0.143ms
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* z-scaling: 0.237ms
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*/
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for (const { name, geojson } of fixtures) {
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let factor: number = 2,
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origin: Coord | Corners = "centroid";
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if (geojson.type === "Feature") {
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// Override any test options specified in the feature's properties.
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factor = geojson.properties?.factor ?? factor;
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origin = geojson.properties?.origin ?? origin;
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}
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console.time(name);
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scale(geojson, factor || 2, { origin, mutate: true });
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console.timeEnd(name);
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}
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/**
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* Benchmark Results
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*
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* line x 15,591 ops/sec ±2.38% (77 runs sampled)
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* multiLine x 27,635 ops/sec ±2.27% (78 runs sampled)
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* multiPoint x 19,728 ops/sec ±2.18% (76 runs sampled)
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* multiPolygon x 2,178 ops/sec ±2.31% (77 runs sampled)
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* no-scale x 28,279 ops/sec ±2.48% (76 runs sampled)
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* point x 138,281 ops/sec ±2.48% (76 runs sampled)
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* poly-double x 34,934 ops/sec ±2.05% (76 runs sampled)
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* poly-half x 33,563 ops/sec ±2.49% (74 runs sampled)
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* polygon-with-hole x 5,046 ops/sec ±3.55% (75 runs sampled)
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* polygon x 35,747 ops/sec ±2.65% (77 runs sampled)
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* z-scaling x 26,205 ops/sec ±2.05% (75 runs sampled)
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*/
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const suite = new Benchmark.Suite("turf-transform-scale");
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for (const { name, geojson } of fixtures) {
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let factor: number = 2,
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origin: Coord | Corners = "centroid";
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if (geojson.type === "Feature") {
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// Override any test options specified in the feature's properties.
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factor = geojson.properties?.factor ?? factor;
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origin = geojson.properties?.origin ?? origin;
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}
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suite.add(name, () => scale(geojson, factor || 2, { origin }));
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}
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suite.on("cycle", (e: Event) => console.log(String(e.target))).run();
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