27 lines
1.3 KiB
JavaScript
27 lines
1.3 KiB
JavaScript
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// @ts-nocheck
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/* eslint-disable */
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import { checkCollinear, getDistance, moveTo } from "./math.mjs";
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/**
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* From https://github.com/unsplash/react-trend/blob/master/src/helpers/DOM.helpers.js#L18
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*/
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export function genPath(points, radius) {
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let fill = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
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let height = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 75;
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const start = points.shift();
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const end = points[points.length - 1];
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return (fill ? `M${start.x} ${height - start.x + 2} L${start.x} ${start.y}` : `M${start.x} ${start.y}`) + points.map((point, index) => {
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const next = points[index + 1];
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const prev = points[index - 1] || start;
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const isCollinear = next && checkCollinear(next, point, prev);
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if (!next || isCollinear) {
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return `L${point.x} ${point.y}`;
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}
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const threshold = Math.min(getDistance(prev, point), getDistance(next, point));
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const isTooCloseForRadius = threshold / 2 < radius;
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const radiusForPoint = isTooCloseForRadius ? threshold / 2 : radius;
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const before = moveTo(prev, point, radiusForPoint);
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const after = moveTo(next, point, radiusForPoint);
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return `L${before.x} ${before.y}S${point.x} ${point.y} ${after.x} ${after.y}`;
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}).join('') + (fill ? `L${end.x} ${height - start.x + 2} Z` : '');
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}
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//# sourceMappingURL=path.mjs.map
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