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Docs: Update benchmark results
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@@ -1,27 +1,29 @@
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async function findConvexHull(points) {
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const { sortBy, uniqWith, isEqual } = await import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/lodash.min.js');
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const findConvexHull = async (points) => {
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const _ = await import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/lodash.min.js');
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const uniquePoints = uniqWith(points, isEqual);
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if (uniquePoints.length < 3) {
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return uniquePoints;
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const sortedPoints = _.sortBy(_.uniqWith(points, _.isEqual), ['x', 'y']);
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if (sortedPoints.length < 3) {
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return sortedPoints;
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}
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const sortedPoints = sortBy(uniquePoints, ['x', 'y']);
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const crossProduct = (p1, p2, p3) =>
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(p2.x - p1.x) * (p3.y - p1.y) - (p2.y - p1.y) * (p3.x - p1.x);
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const buildHull = pts => pts.reduce((hull, p) => {
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while (hull.length >= 2 && crossProduct(hull.at(-2), hull.at(-1), p) <= 0) {
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hull.pop();
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const buildHalfHull = (pointSet) => {
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const hull = [];
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for (const p of pointSet) {
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while (hull.length >= 2 && crossProduct(hull.at(-2), hull.at(-1), p) <= 0) {
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hull.pop();
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}
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hull.push(p);
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}
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hull.push(p);
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return hull;
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}, []);
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};
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const lower = buildHull(sortedPoints);
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const upper = buildHull([...sortedPoints].reverse());
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const lower = buildHalfHull(sortedPoints);
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const upper = buildHalfHull([...sortedPoints].reverse());
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return [...lower.slice(0, -1), ...upper.slice(0, -1)];
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}
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};
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export default findConvexHull;
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