21 lines
541 B
JavaScript
21 lines
541 B
JavaScript
/**
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*
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* @param {string} eventName
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* @param {import('@svgdotjs/svg.js').Element} el
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* @param {number | null} index
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*/
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export function getMoseDownFunc(eventName, el, points, index = null) {
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return function (ev) {
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ev.preventDefault()
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ev.stopPropagation()
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var x = ev.pageX || ev.touches[0].pageX
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var y = ev.pageY || ev.touches[0].pageY
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el.fire(eventName, { x: x, y: y, event: ev, index, points })
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}
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}
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export function transformPoint([x, y], { a, b, c, d, e, f }) {
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return [x * a + y * c + e, x * b + y * d + f]
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}
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