shape-points
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Generate points for simple shapes and curves: arcs, rectangles, rounded rectangles, circles, ellipses, bezierCurveTo, bezierCurveThrough (i.e., bezier curves through specific points)
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<title>JSDoc: Source: arc.js</title>
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<h1 class="page-title">Source: arc.js</h1>
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<pre class="prettyprint source linenums"><code>/**
* calculate points for arc
* @module shape-points/arc
* @param {number} x
* @param {number} y
* @param {number} start angle (radians)
* @param {number} end angle (radians)
* @param {number} radius
* @param {number} [pointsInArc=5]
* @returns {array} [x1, y1, x2, y2, ... xn, yn]
*/
export function arc(x, y, start, end, radius, pointsInArc)
{
pointsInArc = pointsInArc > 1 ? pointsInArc : 5
const points = []
let angle = start
const interval = (end - start) / (pointsInArc - 1)
for (let count = 0; count < pointsInArc; count++)
{
points.push(x + radius * Math.cos(angle), y + radius * Math.sin(angle))
angle += interval
}
return points
}
</code></pre>
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<h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-shape-points.html">shape-points</a></li><li><a href="module-shape-points_arc.html">shape-points/arc</a></li><li><a href="module-shape-points_bezierCurveThrough.html">shape-points/bezierCurveThrough</a></li><li><a href="module-shape-points_bezierCurveTo.html">shape-points/bezierCurveTo</a></li><li><a href="module-shape-points_circle.html">shape-points/circle</a></li><li><a href="module-shape-points_ellipse.html">shape-points/ellipse</a></li><li><a href="module-shape-points_line.html">shape-points/line</a></li><li><a href="module-shape-points_quadraticCurveTo.html">shape-points/quadraticCurveTo</a></li><li><a href="module-shape-points_rect.html">shape-points/rect</a></li><li><a href="module-shape-points_roundedRect.html">shape-points/roundedRect</a></li></ul>
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Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.10</a> on Tue Mar 29 2022 14:31:03 GMT-0700 (Pacific Daylight Time)
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