2a5bac2bb3
* major JSDoc write up * removed ESLint `no-bitwise` exception, it only applies to specific functions and not the entire code * the `SVGCubicMorph` component will remove un-necessary `Z` path commands when is the case for better out of the box animation * fixed a minor disambiguation with `filterEffects` and `drop-shadow` property and its `dropshadow` interpolation function * TypeScript strong: all files are modules, easy to implement in any third party app * updated `CubicBezier` and SVGPathCommander * code cleanup
18 lines
667 B
JavaScript
18 lines
667 B
JavaScript
/**
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* Skew Interpolation Function.
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*
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* @param {number} a start {x,y} angles
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* @param {number} b end {x,y} angles
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* @param {string} u unit, usually `deg` degrees
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* @param {number} v progress
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* @returns {string} the interpolated string value of skew(s)
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*/
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export default function skew(a, b, u, v) {
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const skewArray = [];
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// eslint-disable-next-line no-bitwise
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skewArray[0] = (a[0] === b[0] ? b[0] : ((a[0] + (b[0] - a[0]) * v) * 1000 >> 0) / 1000) + u;
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// eslint-disable-next-line no-bitwise
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skewArray[1] = a[1] || b[1] ? ((a[1] === b[1] ? b[1] : ((a[1] + (b[1] - a[1]) * v) * 1000 >> 0) / 1000) + u) : '0';
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return `skew(${skewArray.join(',')})`;
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}
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