vis.js is a dynamic, browser-based visualization library
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let util = require("../util");
class NetworkUtil {
constructor() {}
/**
* Find the center position of the network considering the bounding boxes
* @private
*/
static _getRange(allNodes, specificNodes = []) {
var minY = 1e9, maxY = -1e9, minX = 1e9, maxX = -1e9, node;
if (specificNodes.length > 0) {
for (var i = 0; i < specificNodes.length; i++) {
node = allNodes[specificNodes[i]];
if (minX > node.shape.boundingBox.left) {
minX = node.shape.boundingBox.left;
}
if (maxX < node.shape.boundingBox.right) {
maxX = node.shape.boundingBox.right;
}
if (minY > node.shape.boundingBox.top) {
minY = node.shape.boundingBox.top;
} // top is negative, bottom is positive
if (maxY < node.shape.boundingBox.bottom) {
maxY = node.shape.boundingBox.bottom;
} // top is negative, bottom is positive
}
}
if (minX === 1e9 && maxX === -1e9 && minY === 1e9 && maxY === -1e9) {
minY = 0, maxY = 0, minX = 0, maxX = 0;
}
return {minX: minX, maxX: maxX, minY: minY, maxY: maxY};
}
/**
* Find the center position of the network
* @private
*/
static _getRangeCore(allNodes, specificNodes = []) {
var minY = 1e9, maxY = -1e9, minX = 1e9, maxX = -1e9, node;
if (specificNodes.length > 0) {
for (var i = 0; i < specificNodes.length; i++) {
node = allNodes[specificNodes[i]];
if (minX > node.x) {
minX = node.x;
}
if (maxX < node.x) {
maxX = node.x;
}
if (minY > node.y) {
minY = node.y;
} // top is negative, bottom is positive
if (maxY < node.y) {
maxY = node.y;
} // top is negative, bottom is positive
}
}
if (minX === 1e9 && maxX === -1e9 && minY === 1e9 && maxY === -1e9) {
minY = 0, maxY = 0, minX = 0, maxX = 0;
}
return {minX: minX, maxX: maxX, minY: minY, maxY: maxY};
}
/**
* @param {object} range = {minX: minX, maxX: maxX, minY: minY, maxY: maxY};
* @returns {{x: number, y: number}}
* @private
*/
static _findCenter(range) {
return {x: (0.5 * (range.maxX + range.minX)),
y: (0.5 * (range.maxY + range.minY))};
}
/**
* This returns a clone of the options or options of the edge or node to be used for construction of new edges or check functions for new nodes.
* @param item
* @param type
* @returns {{}}
* @private
*/
static _cloneOptions(item, type) {
let clonedOptions = {};
if (type === undefined || type === 'node') {
util.deepExtend(clonedOptions, item.options, true);
clonedOptions.x = item.x;
clonedOptions.y = item.y;
clonedOptions.amountOfConnections = item.edges.length;
}
else {
util.deepExtend(clonedOptions, item.options, true);
}
return clonedOptions;
}
}
export default NetworkUtil;