@projectstorm/geometry/dist/toolkit.js

import { Point } from './Point';
import _flatMap from 'lodash/flatMap';
import { BoundsCorner, createEmptyBounds } from './Bounds';
export const boundingBoxFromPoints = (points) => {
    if (points.length === 0) {
        return createEmptyBounds();
    }
    let minX = points[0].x;
    let maxX = points[0].x;
    let minY = points[0].y;
    let maxY = points[0].y;
    for (let i = 1; i < points.length; i++) {
        if (points[i].x < minX) {
            minX = points[i].x;
        }
        if (points[i].x > maxX) {
            maxX = points[i].x;
        }
        if (points[i].y < minY) {
            minY = points[i].y;
        }
        if (points[i].y > maxY) {
            maxY = points[i].y;
        }
    }
    return {
        [BoundsCorner.TOP_LEFT]: new Point(minX, minY),
        [BoundsCorner.TOP_RIGHT]: new Point(maxX, minY),
        [BoundsCorner.BOTTOM_RIGHT]: new Point(maxX, maxY),
        [BoundsCorner.BOTTOM_LEFT]: new Point(minX, maxY)
    };
};
export const boundingBoxFromPolygons = (polygons) => {
    return boundingBoxFromPoints(_flatMap(polygons, (polygon) => {
        return polygon.getPoints();
    }));
};
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