make-geo-json/dist/rectFrom2Points.js

Converts polylines, wkts, wkbs, polygons, circles, rectangles, as well as standard geoJSON into geoJSON MultiPolygon Feature Objects. Converts wkb_list and FeatureCollection to arrays.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = rectFrom2Points;
// input p_1 = [ <long>, <lat> ] p_2 = [ <long>, <lat> ]

const dist = (p_1, p_2) => Math.sqrt((p_1[0] - p_2[0]) ** 2 + (p_1[1] - p_2[1]) ** 2);

function rectFrom2Points(p_1, p_2) {
  const d = dist(p_1, p_2) / 2;
  const r = [];
  if (p_1[0] < p_2[0]) {
    r.push([p_1[0] - d, p_1[1]]);
    r.push([p_2[0] + d, p_2[1]]);
  } else {
    r.push([p_2[0] - d, p_2[1]]);
    r.push([p_1[0] + d, p_1[1]]);
  }

  if (p_1[1] < p_2[1]) {
    r.push([p_1[0], p_1[1] - d]);
    r.push([p_2[0], p_2[1] + d]);
  } else {
    r.push([p_2[0], p_2[1] - d]);
    r.push([p_1[0], p_1[1] + d]);
  }
  return [r[0], r[2], r[1], r[3], r[0]];
}