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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | 113x 113x 113x 412x 412x 218x 218x 113x 412x 412x 412x | import type { Types } from '@cornerstonejs/core';
/**
* Find the closest point to the target point
*
* @param sourcePoints - The potential source points.
* @param targetPoint - The target point, used to find the closest source.
* @returns The closest point in the array of point sources
*/
export default function findClosestPoint(
sourcePoints: Array<Types.Point2>,
targetPoint: Types.Point2
): Types.Point2 {
let minPoint = [0, 0];
let minDistance = Number.MAX_SAFE_INTEGER;
sourcePoints.forEach(function (sourcePoint) {
const distance = _distanceBetween(targetPoint, sourcePoint);
if (distance < minDistance) {
minDistance = distance;
minPoint = [...sourcePoint];
}
});
return minPoint as Types.Point2;
}
/**
*
* @private
* @param p1
* @param p2
*/
function _distanceBetween(p1: Types.Point2, p2: Types.Point2): number {
const [x1, y1] = p1;
const [x2, y2] = p2;
return Math.sqrt(Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2));
}
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