kute.js/src/interpolation/coords.js
thednp 2a5bac2bb3 Changes V2.2.0:
* 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
2021-12-08 23:43:31 +02:00

21 lines
616 B
JavaScript

/**
* Coordinates Interpolation Function.
*
* @param {number[][]} a start coordinates
* @param {number[][]} b end coordinates
* @param {string} l amount of coordinates
* @param {number} v progress
* @returns {number[][]} the interpolated coordinates
*/
export default function coords(a, b, l, v) {
const points = [];
for (let i = 0; i < l; i += 1) { // for each point
points[i] = [];
for (let j = 0; j < 2; j += 1) { // each point coordinate
// eslint-disable-next-line no-bitwise
points[i].push(((a[i][j] + (b[i][j] - a[i][j]) * v) * 1000 >> 0) / 1000);
}
}
return points;
}