3d-force-graph.js

// Version 1.66.6 3d-force-graph - https://github.com/vasturiano/3d-force-graph
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
  typeof define === 'function' && define.amd ? define(factory) :
  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.ForceGraph3D = factory());
}(this, (function () { 'use strict';

  function styleInject(css, ref) {
    if ( ref === void 0 ) ref = {};
    var insertAt = ref.insertAt;

    if (!css || typeof document === 'undefined') { return; }

    var head = document.head || document.getElementsByTagName('head')[0];
    var style = document.createElement('style');
    style.type = 'text/css';

    if (insertAt === 'top') {
      if (head.firstChild) {
        head.insertBefore(style, head.firstChild);
      } else {
        head.appendChild(style);
      }
    } else {
      head.appendChild(style);
    }

    if (style.styleSheet) {
      style.styleSheet.cssText = css;
    } else {
      style.appendChild(document.createTextNode(css));
    }
  }

  var css_248z = ".graph-info-msg {\n  top: 50%;\n  width: 100%;\n  text-align: center;\n  color: lavender;\n  opacity: 0.7;\n  font-size: 22px;\n  position: absolute;\n  font-family: Sans-serif;\n}\n\n.grabbable {\n  cursor: move;\n  cursor: grab;\n  cursor: -moz-grab;\n  cursor: -webkit-grab;\n}\n\n.grabbable:active {\n  cursor: grabbing;\n  cursor: -moz-grabbing;\n  cursor: -webkit-grabbing;\n}";
  styleInject(css_248z);

  function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }

    return obj;
  }

  function ownKeys(object, enumerableOnly) {
    var keys = Object.keys(object);

    if (Object.getOwnPropertySymbols) {
      var symbols = Object.getOwnPropertySymbols(object);
      if (enumerableOnly) symbols = symbols.filter(function (sym) {
        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
      });
      keys.push.apply(keys, symbols);
    }

    return keys;
  }

  function _objectSpread2(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i] != null ? arguments[i] : {};

      if (i % 2) {
        ownKeys(Object(source), true).forEach(function (key) {
          _defineProperty(target, key, source[key]);
        });
      } else if (Object.getOwnPropertyDescriptors) {
        Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
      } else {
        ownKeys(Object(source)).forEach(function (key) {
          Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
        });
      }
    }

    return target;
  }

  function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
  }

  function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) return _arrayLikeToArray(arr);
  }

  function _iterableToArray(iter) {
    if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter);
  }

  function _unsupportedIterableToArray(o, minLen) {
    if (!o) return;
    if (typeof o === "string") return _arrayLikeToArray(o, minLen);
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === "Object" && o.constructor) n = o.constructor.name;
    if (n === "Map" || n === "Set") return Array.from(o);
    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
  }

  function _arrayLikeToArray(arr, len) {
    if (len == null || len > arr.length) len = arr.length;

    for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

    return arr2;
  }

  function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
  }

  // Polyfills

  if ( Number.EPSILON === undefined ) {

  	Number.EPSILON = Math.pow( 2, - 52 );

  }

  if ( Number.isInteger === undefined ) {

  	// Missing in IE
  	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger

  	Number.isInteger = function ( value ) {

  		return typeof value === 'number' && isFinite( value ) && Math.floor( value ) === value;

  	};

  }

  //

  if ( Math.sign === undefined ) {

  	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign

  	Math.sign = function ( x ) {

  		return ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;

  	};

  }

  if ( 'name' in Function.prototype === false ) {

  	// Missing in IE
  	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name

  	Object.defineProperty( Function.prototype, 'name', {

  		get: function () {

  			return this.toString().match( /^\s*function\s*([^\(\s]*)/ )[ 1 ];

  		}

  	} );

  }

  if ( Object.assign === undefined ) {

  	// Missing in IE
  	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign

  	Object.assign = function ( target ) {

  		if ( target === undefined || target === null ) {

  			throw new TypeError( 'Cannot convert undefined or null to object' );

  		}

  		const output = Object( target );

  		for ( let index = 1; index < arguments.length; index ++ ) {

  			const source = arguments[ index ];

  			if ( source !== undefined && source !== null ) {

  				for ( const nextKey in source ) {

  					if ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {

  						output[ nextKey ] = source[ nextKey ];

  					}