You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
449 lines
18 KiB
449 lines
18 KiB
// Load custom shapes into CanvasRenderingContext2D
|
|
require('./shapes');
|
|
|
|
var Emitter = require('emitter-component');
|
|
var Hammer = require('../module/hammer');
|
|
var util = require('../util');
|
|
var DataSet = require('../DataSet');
|
|
var DataView = require('../DataView');
|
|
var dotparser = require('./dotparser');
|
|
var gephiParser = require('./gephiParser');
|
|
var Images = require('./Images');
|
|
var Activator = require('../shared/Activator');
|
|
|
|
import Groups from './modules/Groups';
|
|
import NodesHandler from './modules/NodesHandler';
|
|
import EdgesHandler from './modules/EdgesHandler';
|
|
import PhysicsEngine from './modules/PhysicsEngine';
|
|
import ClusterEngine from './modules/Clustering';
|
|
import CanvasRenderer from './modules/CanvasRenderer';
|
|
import Canvas from './modules/Canvas';
|
|
import View from './modules/View';
|
|
import InteractionHandler from './modules/InteractionHandler';
|
|
import SelectionHandler from "./modules/SelectionHandler";
|
|
import LayoutEngine from "./modules/LayoutEngine";
|
|
import ManipulationSystem from "./modules/ManipulationSystem";
|
|
import ConfigurationSystem from "./modules/ConfigurationSystem";
|
|
import Validator from "./modules/Validator";
|
|
import {printStyle} from "./modules/Validator";
|
|
import {allOptions, configureOptions} from './modules/components/AllOptions.js';
|
|
|
|
/**
|
|
* @constructor Network
|
|
* Create a network visualization, displaying nodes and edges.
|
|
*
|
|
* @param {Element} container The DOM element in which the Network will
|
|
* be created. Normally a div element.
|
|
* @param {Object} data An object containing parameters
|
|
* {Array} nodes
|
|
* {Array} edges
|
|
* @param {Object} options Options
|
|
*/
|
|
function Network(container, data, options) {
|
|
if (!(this instanceof Network)) {
|
|
throw new SyntaxError('Constructor must be called with the new operator');
|
|
}
|
|
|
|
// set constant values
|
|
this.options = {};
|
|
this.defaultOptions = {
|
|
clickToUse: false
|
|
};
|
|
util.extend(this.options, this.defaultOptions);
|
|
|
|
// containers for nodes and edges
|
|
this.body = {
|
|
nodes: {},
|
|
nodeIndices: [],
|
|
edges: {},
|
|
edgeIndices: [],
|
|
data: {
|
|
nodes: null, // A DataSet or DataView
|
|
edges: null // A DataSet or DataView
|
|
},
|
|
functions: {
|
|
createNode: function() {},
|
|
createEdge: function() {},
|
|
getPointer: function() {}
|
|
},
|
|
emitter: {
|
|
on: this.on.bind(this),
|
|
off: this.off.bind(this),
|
|
emit: this.emit.bind(this),
|
|
once: this.once.bind(this)
|
|
},
|
|
eventListeners: {
|
|
onTap: function() {},
|
|
onTouch: function() {},
|
|
onDoubleTap: function() {},
|
|
onHold: function() {},
|
|
onDragStart: function() {},
|
|
onDrag: function() {},
|
|
onDragEnd: function() {},
|
|
onMouseWheel: function() {},
|
|
onPinch: function() {},
|
|
onMouseMove: function() {},
|
|
onRelease: function() {},
|
|
onContext: function() {}
|
|
},
|
|
container: container,
|
|
view: {
|
|
scale: 1,
|
|
translation: {x: 0, y: 0}
|
|
}
|
|
};
|
|
|
|
// bind the event listeners
|
|
this.bindEventListeners();
|
|
|
|
// setting up all modules
|
|
this.images = new Images(() => this.body.emitter.emit("_requestRedraw")); // object with images
|
|
this.groups = new Groups(); // object with groups
|
|
this.canvas = new Canvas(this.body); // DOM handler
|
|
this.selectionHandler = new SelectionHandler(this.body, this.canvas); // Selection handler
|
|
this.interactionHandler = new InteractionHandler(this.body, this.canvas, this.selectionHandler); // Interaction handler handles all the hammer bindings (that are bound by canvas), key
|
|
this.view = new View(this.body, this.canvas); // camera handler, does animations and zooms
|
|
this.renderer = new CanvasRenderer(this.body, this.canvas); // renderer, starts renderloop, has events that modules can hook into
|
|
this.physics = new PhysicsEngine(this.body); // physics engine, does all the simulations
|
|
this.layoutEngine = new LayoutEngine(this.body); // layout engine for inital layout and hierarchical layout
|
|
this.clustering = new ClusterEngine(this.body); // clustering api
|
|
this.manipulation = new ManipulationSystem(this.body, this.canvas, this.selectionHandler); // data manipulation system
|
|
|
|
this.nodesHandler = new NodesHandler(this.body, this.images, this.groups, this.layoutEngine); // Handle adding, deleting and updating of nodes as well as global options
|
|
this.edgesHandler = new EdgesHandler(this.body, this.images, this.groups); // Handle adding, deleting and updating of edges as well as global options
|
|
|
|
// create the DOM elements
|
|
this.canvas._create();
|
|
|
|
// setup configuration system
|
|
this.configurationSystem = new ConfigurationSystem(this, this.body.container, configureOptions, this.canvas.pixelRatio);
|
|
|
|
// apply options
|
|
this.setOptions(options);
|
|
|
|
// load data (the disable start variable will be the same as the enabled clustering)
|
|
this.setData(data);
|
|
|
|
}
|
|
|
|
// Extend Network with an Emitter mixin
|
|
Emitter(Network.prototype);
|
|
|
|
|
|
/**
|
|
* Set options
|
|
* @param {Object} options
|
|
*/
|
|
Network.prototype.setOptions = function (options) {
|
|
if (options !== undefined) {
|
|
|
|
let errorFound = Validator.validate(options, allOptions);
|
|
if (errorFound === true) {
|
|
options = {};
|
|
console.log('%cErrors have been found in the supplied options object. None of the options will be used.', printStyle);
|
|
}
|
|
|
|
// the hierarchical system can adapt the edges and the physics to it's own options because not all combinations work with the hierarichical system.
|
|
options = this.layoutEngine.setOptions(options.layout, options);
|
|
|
|
// pass the options to the modules
|
|
this.groups.setOptions(options.groups);
|
|
this.nodesHandler.setOptions(options.nodes);
|
|
this.edgesHandler.setOptions(options.edges);
|
|
this.physics.setOptions(options.physics);
|
|
this.canvas.setOptions(options.canvas);
|
|
this.renderer.setOptions(options.rendering);
|
|
this.view.setOptions(options.view);
|
|
this.interactionHandler.setOptions(options.interaction);
|
|
this.selectionHandler.setOptions(options.selection);
|
|
this.clustering.setOptions(options.clustering);
|
|
this.manipulation.setOptions(options.manipulation);
|
|
|
|
this.configurationSystem.setOptions(options.configure);
|
|
|
|
// if the configuration system is enabled, copy all options and put them into the config system
|
|
if (this.configurationSystem.options.enabled === true) {
|
|
let networkOptions = {nodes:{},edges:{},layout:{},interaction:{},manipulation:{},physics:{},selection:{},rendering:{}};
|
|
util.deepExtend(networkOptions.nodes, this.nodesHandler.options);
|
|
util.deepExtend(networkOptions.edges, this.edgesHandler.options);
|
|
util.deepExtend(networkOptions.layout, this.layoutEngine.options);
|
|
util.deepExtend(networkOptions.interaction, this.interactionHandler.options);
|
|
util.deepExtend(networkOptions.manipulation, this.manipulation.options);
|
|
util.deepExtend(networkOptions.physics, this.physics.options);
|
|
util.deepExtend(networkOptions.selection, this.selectionHandler.options);
|
|
util.deepExtend(networkOptions.rendering, this.renderer.options);
|
|
this.configurationSystem.setModuleOptions(networkOptions);
|
|
}
|
|
|
|
// handle network global options
|
|
if (options.clickToUse !== undefined) {
|
|
if (options.clickToUse === true) {
|
|
if (this.activator === undefined) {
|
|
this.activator = new Activator(this.frame);
|
|
this.activator.on('change', this._createKeyBinds.bind(this));
|
|
}
|
|
}
|
|
else {
|
|
if (this.activator !== undefined) {
|
|
this.activator.destroy();
|
|
delete this.activator;
|
|
}
|
|
this.body.emitter.emit("activate");
|
|
}
|
|
}
|
|
else {
|
|
this.body.emitter.emit("activate");
|
|
}
|
|
|
|
this.canvas.setSize();
|
|
|
|
// start the physics simulation. Can be safely called multiple times.
|
|
this.body.emitter.emit("startSimulation");
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Update the this.body.nodeIndices with the most recent node index list
|
|
* @private
|
|
*/
|
|
Network.prototype._updateVisibleIndices = function () {
|
|
let nodes = this.body.nodes;
|
|
let edges = this.body.edges;
|
|
this.body.nodeIndices = [];
|
|
this.body.edgeIndices = [];
|
|
|
|
for (let nodeId in nodes) {
|
|
if (nodes.hasOwnProperty(nodeId)) {
|
|
if (nodes[nodeId].options.hidden === false) {
|
|
this.body.nodeIndices.push(nodeId);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (let edgeId in edges) {
|
|
if (edges.hasOwnProperty(edgeId)) {
|
|
if (edges[edgeId].options.hidden === false) {
|
|
this.body.edgeIndices.push(edgeId);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Bind all events
|
|
*/
|
|
Network.prototype.bindEventListeners = function () {
|
|
// this event will trigger a rebuilding of the cache everything. Used when nodes or edges have been added or removed.
|
|
this.body.emitter.on("_dataChanged", () => {
|
|
// update shortcut lists
|
|
this._updateVisibleIndices();
|
|
this.physics.updatePhysicsIndices();
|
|
|
|
// call the dataUpdated event because the only difference between the two is the updating of the indices
|
|
this.body.emitter.emit("_dataUpdated");
|
|
});
|
|
|
|
// this is called when options of EXISTING nodes or edges have changed.
|
|
this.body.emitter.on("_dataUpdated", () => {
|
|
// update values
|
|
this._updateValueRange(this.body.nodes);
|
|
this._updateValueRange(this.body.edges);
|
|
// start simulation (can be called safely, even if already running)
|
|
this.body.emitter.emit("startSimulation");
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* Set nodes and edges, and optionally options as well.
|
|
*
|
|
* @param {Object} data Object containing parameters:
|
|
* {Array | DataSet | DataView} [nodes] Array with nodes
|
|
* {Array | DataSet | DataView} [edges] Array with edges
|
|
* {String} [dot] String containing data in DOT format
|
|
* {String} [gephi] String containing data in gephi JSON format
|
|
* {Options} [options] Object with options
|
|
*/
|
|
Network.prototype.setData = function (data) {
|
|
// reset the physics engine.
|
|
this.body.emitter.emit("resetPhysics");
|
|
this.body.emitter.emit("_resetData");
|
|
|
|
// unselect all to ensure no selections from old data are carried over.
|
|
this.selectionHandler.unselectAll();
|
|
|
|
if (data && data.dot && (data.nodes || data.edges)) {
|
|
throw new SyntaxError('Data must contain either parameter "dot" or ' +
|
|
' parameter pair "nodes" and "edges", but not both.');
|
|
}
|
|
|
|
// set options
|
|
this.setOptions(data && data.options);
|
|
// set all data
|
|
if (data && data.dot) {
|
|
// parse DOT file
|
|
if (data && data.dot) {
|
|
var dotData = dotparser.DOTToGraph(data.dot);
|
|
this.setData(dotData);
|
|
return;
|
|
}
|
|
}
|
|
else if (data && data.gephi) {
|
|
// parse DOT file
|
|
if (data && data.gephi) {
|
|
var gephiData = gephiParser.parseGephi(data.gephi);
|
|
this.setData(gephiData);
|
|
return;
|
|
}
|
|
}
|
|
else {
|
|
this.nodesHandler.setData(data && data.nodes, true);
|
|
this.edgesHandler.setData(data && data.edges, true);
|
|
}
|
|
|
|
// emit change in data
|
|
this.body.emitter.emit("_dataChanged");
|
|
|
|
// find a stable position or start animating to a stable position
|
|
this.body.emitter.emit("initPhysics");
|
|
};
|
|
|
|
|
|
/**
|
|
* Cleans up all bindings of the network, removing it fully from the memory IF the variable is set to null after calling this function.
|
|
* var network = new vis.Network(..);
|
|
* network.destroy();
|
|
* network = null;
|
|
*/
|
|
Network.prototype.destroy = function () {
|
|
this.body.emitter.emit("destroy");
|
|
// clear events
|
|
this.body.emitter.off();
|
|
this.off();
|
|
|
|
// delete modules
|
|
delete this.groups;
|
|
delete this.canvas;
|
|
delete this.selectionHandler;
|
|
delete this.interactionHandler;
|
|
delete this.view;
|
|
delete this.renderer;
|
|
delete this.physics;
|
|
delete this.layoutEngine;
|
|
delete this.clustering;
|
|
delete this.manipulation;
|
|
delete this.nodesHandler;
|
|
delete this.edgesHandler;
|
|
delete this.configurationSystem;
|
|
delete this.images;
|
|
|
|
// delete emitter bindings
|
|
delete this.body.emitter.emit;
|
|
delete this.body.emitter.on;
|
|
delete this.body.emitter.off;
|
|
delete this.body.emitter.once;
|
|
delete this.body.emitter;
|
|
|
|
|
|
for (var nodeId in this.body.nodes) {
|
|
delete this.body.nodes[nodeId];
|
|
}
|
|
for (var edgeId in this.body.edges) {
|
|
delete this.body.edges[edgeId];
|
|
}
|
|
|
|
// remove the container and everything inside it recursively
|
|
util.recursiveDOMDelete(this.body.container);
|
|
};
|
|
|
|
|
|
/**
|
|
* Update the values of all object in the given array according to the current
|
|
* value range of the objects in the array.
|
|
* @param {Object} obj An object containing a set of Edges or Nodes
|
|
* The objects must have a method getValue() and
|
|
* setValueRange(min, max).
|
|
* @private
|
|
*/
|
|
Network.prototype._updateValueRange = function (obj) {
|
|
var id;
|
|
|
|
// determine the range of the objects
|
|
var valueMin = undefined;
|
|
var valueMax = undefined;
|
|
var valueTotal = 0;
|
|
for (id in obj) {
|
|
if (obj.hasOwnProperty(id)) {
|
|
var value = obj[id].getValue();
|
|
if (value !== undefined) {
|
|
valueMin = (valueMin === undefined) ? value : Math.min(value, valueMin);
|
|
valueMax = (valueMax === undefined) ? value : Math.max(value, valueMax);
|
|
valueTotal += value;
|
|
}
|
|
}
|
|
}
|
|
|
|
// adjust the range of all objects
|
|
if (valueMin !== undefined && valueMax !== undefined) {
|
|
for (id in obj) {
|
|
if (obj.hasOwnProperty(id)) {
|
|
obj[id].setValueRange(valueMin, valueMax, valueTotal);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Returns true when the Network is active.
|
|
* @returns {boolean}
|
|
*/
|
|
Network.prototype.isActive = function () {
|
|
return !this.activator || this.activator.active;
|
|
};
|
|
|
|
|
|
Network.prototype.setSize = function() {this.canvas.setSize.apply(this.canvas,arguments);};
|
|
Network.prototype.canvasToDOM = function() {this.canvas.canvasToDOM.apply(this.canvas,arguments);};
|
|
Network.prototype.DOMtoCanvas = function() {this.canvas.setSize.DOMtoCanvas(this.canvas,arguments);};
|
|
Network.prototype.findNode = function() {this.clustering.findNode.apply(this.clustering,arguments);};
|
|
Network.prototype.isCluster = function() {this.clustering.isCluster.apply(this.clustering,arguments);};
|
|
Network.prototype.openCluster = function() {this.clustering.openCluster.apply(this.clustering,arguments);};
|
|
Network.prototype.cluster = function() {this.clustering.cluster.apply(this.clustering,arguments);};
|
|
Network.prototype.clusterByConnection = function() {this.clustering.clusterByConnection.apply(this.clustering,arguments);};
|
|
Network.prototype.clusterByHubsize = function() {this.clustering.clusterByHubsize.apply(this.clustering,arguments);};
|
|
Network.prototype.clusterOutliers = function() {this.clustering.clusterOutliers.apply(this.clustering,arguments);};
|
|
Network.prototype.getSeed = function() {this.layoutEngine.getSeed.apply(this.layoutEngine,arguments);};
|
|
Network.prototype.enableEditMode = function() {this.manipulation.enableEditMode.apply(this.manipulation,arguments);};
|
|
Network.prototype.disableEditMode = function() {this.manipulation.disableEditMode.apply(this.manipulation,arguments);};
|
|
Network.prototype.addNodeMode = function() {this.manipulation.addNodeMode.apply(this.manipulation,arguments);};
|
|
Network.prototype.editNodeMode = function() {this.manipulation.editNodeMode.apply(this.manipulation,arguments);};
|
|
Network.prototype.addEdgeMode = function() {this.manipulation.addEdgeMode.apply(this.manipulation,arguments);};
|
|
Network.prototype.editEdgeMode = function() {this.manipulation.editEdgeMode.apply(this.manipulation,arguments);};
|
|
Network.prototype.deleteSelected = function() {this.manipulation.deleteSelected.apply(this.manipulation,arguments);};
|
|
Network.prototype.getPositions = function() {this.nodesHandler.getPositions.apply(this.nodesHandler,arguments);};
|
|
Network.prototype.storePositions = function() {this.nodesHandler.storePositions.apply(this.nodesHandler,arguments);};
|
|
Network.prototype.getBoundingBox = function() {this.nodesHandler.getBoundingBox.apply(this.nodesHandler,arguments);};
|
|
Network.prototype.getConnectedNodes = function() {this.nodesHandler.getConnectedNodes.apply(this.nodesHandler,arguments);};
|
|
Network.prototype.getEdges = function() {this.nodesHandler.getEdges.apply(this.nodesHandler,arguments);};
|
|
Network.prototype.startSimulation = function() {this.physics.startSimulation.apply(this.physics,arguments);};
|
|
Network.prototype.stopSimulation = function() {this.physics.stopSimulation.apply(this.physics,arguments);};
|
|
Network.prototype.stabilize = function() {this.physics.stabilize.apply(this.physics,arguments);};
|
|
Network.prototype.getSelection = function() {this.selectionHandler.getSelection.apply(this.selectionHandler,arguments);};
|
|
Network.prototype.getSelectedNodes = function() {this.selectionHandler.getSelectedNodes.apply(this.selectionHandler,arguments);};
|
|
Network.prototype.getSelectedEdges = function() {this.selectionHandler.getSelectedEdges.apply(this.selectionHandler,arguments);};
|
|
Network.prototype.getNodeAt = function() {this.selectionHandler.getNodeAt.apply(this.selectionHandler,arguments);};
|
|
Network.prototype.getEdgeAt = function() {this.selectionHandler.getEdgeAt.apply(this.selectionHandler,arguments);};
|
|
Network.prototype.selectNodes = function() {this.selectionHandler.selectNodes.apply(this.selectionHandler,arguments);};
|
|
Network.prototype.selectEdges = function() {this.selectionHandler.selectEdges.apply(this.selectionHandler,arguments);};
|
|
Network.prototype.unselectAll = function() {this.selectionHandler.unselectAll.apply(this.selectionHandler,arguments);};
|
|
Network.prototype.getScale = function() {this.view.getScale.apply(this.view,arguments);};
|
|
Network.prototype.getPosition = function() {this.view.getPosition.apply(this.view,arguments);};
|
|
Network.prototype.fit = function() {this.view.fit.apply(this.view,arguments);};
|
|
Network.prototype.moveTo = function() {this.view.moveTo.apply(this.view,arguments);};
|
|
Network.prototype.focus = function() {this.view.focus.apply(this.view,arguments);};
|
|
Network.prototype.releaseNode = function() {this.view.releaseNode.apply(this.view,arguments);};
|
|
|
|
module.exports = Network;
|