mt-polygon-simplification/lib/turf-simplify/bench.js
2019-07-14 20:37:26 +02:00

68 lines
2.1 KiB
JavaScript

import fs from 'fs';
import path from 'path';
import load from 'load-json-file';
import Benchmark from 'benchmark';
import simplify from './';
const directory = path.join(__dirname, 'test', 'in') + path.sep;
const fixtures = fs.readdirSync(directory).map(filename => {
return {
name: path.parse(filename).name,
geojson: load.sync(directory + filename)
};
});
/**
* Single Process Benchmark
*
* argentina: 4.695ms
* featurecollection: 1.647ms
* fiji-hiQ: 0.461ms
* geometrycollection: 3.332ms
* linestring: 0.460ms
* multilinestring: 0.657ms
* multipoint: 0.193ms
* multipolygon: 6.108ms
* point: 0.032ms
* poly-issue#555-5: 4.956ms
* polygon: 0.675ms
* simple-polygon: 2.735ms
*/
for (const {name, geojson} of fixtures) {
let {tolerance, highQuality} = geojson.properties || {};
tolerance = tolerance || 0.01;
highQuality = highQuality || false;
console.time(name);
simplify(geojson, tolerance, highQuality);
console.timeEnd(name);
}
/**
* Benchmark Results
*
* argentina x 13,380 ops/sec ±4.31% (72 runs sampled)
* featurecollection x 4,709 ops/sec ±2.24% (76 runs sampled)
* fiji-hiQ x 41,197 ops/sec ±1.96% (80 runs sampled)
* geometrycollection x 4,690 ops/sec ±2.25% (78 runs sampled)
* linestring x 29,737 ops/sec ±2.26% (77 runs sampled)
* multilinestring x 20,530 ops/sec ±2.08% (77 runs sampled)
* multipoint x 394,980 ops/sec ±2.35% (77 runs sampled)
* multipolygon x 809 ops/sec ±3.32% (70 runs sampled)
* point x 5,157,027 ops/sec ±8.79% (72 runs sampled)
* poly-issue#555-5 x 1,816 ops/sec ±2.43% (66 runs sampled)
* polygon x 2,996 ops/sec ±2.85% (74 runs sampled)
* simple-polygon x 369 ops/sec ±7.55% (66 runs sampled)
*/
const suite = new Benchmark.Suite('turf-transform-simplify');
for (const {name, geojson} of fixtures) {
let {tolerance, highQuality} = geojson.properties || {};
tolerance = tolerance || 0.01;
highQuality = highQuality || false;
suite.add(name, () => simplify(geojson, tolerance, highQuality));
}
suite
.on('cycle', e => console.log(String(e.target)))
.on('complete', () => {})
.run();