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- // https://d3js.org/d3-selection/ v1.4.2 Copyright 2020 Mike Bostock
- (function (global, factory) {
- typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
- typeof define === 'function' && define.amd ? define(['exports'], factory) :
- (global = global || self, factory(global.d3 = global.d3 || {}));
- }(this, function (exports) { 'use strict';
- var xhtml = "http://www.w3.org/1999/xhtml";
- var namespaces = {
- svg: "http://www.w3.org/2000/svg",
- xhtml: xhtml,
- xlink: "http://www.w3.org/1999/xlink",
- xml: "http://www.w3.org/XML/1998/namespace",
- xmlns: "http://www.w3.org/2000/xmlns/"
- };
- function namespace(name) {
- var prefix = name += "", i = prefix.indexOf(":");
- if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
- return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name;
- }
- function creatorInherit(name) {
- return function() {
- var document = this.ownerDocument,
- uri = this.namespaceURI;
- return uri === xhtml && document.documentElement.namespaceURI === xhtml
- ? document.createElement(name)
- : document.createElementNS(uri, name);
- };
- }
- function creatorFixed(fullname) {
- return function() {
- return this.ownerDocument.createElementNS(fullname.space, fullname.local);
- };
- }
- function creator(name) {
- var fullname = namespace(name);
- return (fullname.local
- ? creatorFixed
- : creatorInherit)(fullname);
- }
- function none() {}
- function selector(selector) {
- return selector == null ? none : function() {
- return this.querySelector(selector);
- };
- }
- function selection_select(select) {
- if (typeof select !== "function") select = selector(select);
- for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
- for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
- if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {
- if ("__data__" in node) subnode.__data__ = node.__data__;
- subgroup[i] = subnode;
- }
- }
- }
- return new Selection(subgroups, this._parents);
- }
- function empty() {
- return [];
- }
- function selectorAll(selector) {
- return selector == null ? empty : function() {
- return this.querySelectorAll(selector);
- };
- }
- function selection_selectAll(select) {
- if (typeof select !== "function") select = selectorAll(select);
- for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
- for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
- if (node = group[i]) {
- subgroups.push(select.call(node, node.__data__, i, group));
- parents.push(node);
- }
- }
- }
- return new Selection(subgroups, parents);
- }
- function matcher(selector) {
- return function() {
- return this.matches(selector);
- };
- }
- function selection_filter(match) {
- if (typeof match !== "function") match = matcher(match);
- for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
- for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
- if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
- subgroup.push(node);
- }
- }
- }
- return new Selection(subgroups, this._parents);
- }
- function sparse(update) {
- return new Array(update.length);
- }
- function selection_enter() {
- return new Selection(this._enter || this._groups.map(sparse), this._parents);
- }
- function EnterNode(parent, datum) {
- this.ownerDocument = parent.ownerDocument;
- this.namespaceURI = parent.namespaceURI;
- this._next = null;
- this._parent = parent;
- this.__data__ = datum;
- }
- EnterNode.prototype = {
- constructor: EnterNode,
- appendChild: function(child) { return this._parent.insertBefore(child, this._next); },
- insertBefore: function(child, next) { return this._parent.insertBefore(child, next); },
- querySelector: function(selector) { return this._parent.querySelector(selector); },
- querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); }
- };
- function constant(x) {
- return function() {
- return x;
- };
- }
- var keyPrefix = "$"; // Protect against keys like “__proto__”.
- function bindIndex(parent, group, enter, update, exit, data) {
- var i = 0,
- node,
- groupLength = group.length,
- dataLength = data.length;
- // Put any non-null nodes that fit into update.
- // Put any null nodes into enter.
- // Put any remaining data into enter.
- for (; i < dataLength; ++i) {
- if (node = group[i]) {
- node.__data__ = data[i];
- update[i] = node;
- } else {
- enter[i] = new EnterNode(parent, data[i]);
- }
- }
- // Put any non-null nodes that don’t fit into exit.
- for (; i < groupLength; ++i) {
- if (node = group[i]) {
- exit[i] = node;
- }
- }
- }
- function bindKey(parent, group, enter, update, exit, data, key) {
- var i,
- node,
- nodeByKeyValue = {},
- groupLength = group.length,
- dataLength = data.length,
- keyValues = new Array(groupLength),
- keyValue;
- // Compute the key for each node.
- // If multiple nodes have the same key, the duplicates are added to exit.
- for (i = 0; i < groupLength; ++i) {
- if (node = group[i]) {
- keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group);
- if (keyValue in nodeByKeyValue) {
- exit[i] = node;
- } else {
- nodeByKeyValue[keyValue] = node;
- }
- }
- }
- // Compute the key for each datum.
- // If there a node associated with this key, join and add it to update.
- // If there is not (or the key is a duplicate), add it to enter.
- for (i = 0; i < dataLength; ++i) {
- keyValue = keyPrefix + key.call(parent, data[i], i, data);
- if (node = nodeByKeyValue[keyValue]) {
- update[i] = node;
- node.__data__ = data[i];
- nodeByKeyValue[keyValue] = null;
- } else {
- enter[i] = new EnterNode(parent, data[i]);
- }
- }
- // Add any remaining nodes that were not bound to data to exit.
- for (i = 0; i < groupLength; ++i) {
- if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) {
- exit[i] = node;
- }
- }
- }
- function selection_data(value, key) {
- if (!value) {
- data = new Array(this.size()), j = -1;
- this.each(function(d) { data[++j] = d; });
- return data;
- }
- var bind = key ? bindKey : bindIndex,
- parents = this._parents,
- groups = this._groups;
- if (typeof value !== "function") value = constant(value);
- for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) {
- var parent = parents[j],
- group = groups[j],
- groupLength = group.length,
- data = value.call(parent, parent && parent.__data__, j, parents),
- dataLength = data.length,
- enterGroup = enter[j] = new Array(dataLength),
- updateGroup = update[j] = new Array(dataLength),
- exitGroup = exit[j] = new Array(groupLength);
- bind(parent, group, enterGroup, updateGroup, exitGroup, data, key);
- // Now connect the enter nodes to their following update node, such that
- // appendChild can insert the materialized enter node before this node,
- // rather than at the end of the parent node.
- for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) {
- if (previous = enterGroup[i0]) {
- if (i0 >= i1) i1 = i0 + 1;
- while (!(next = updateGroup[i1]) && ++i1 < dataLength);
- previous._next = next || null;
- }
- }
- }
- update = new Selection(update, parents);
- update._enter = enter;
- update._exit = exit;
- return update;
- }
- function selection_exit() {
- return new Selection(this._exit || this._groups.map(sparse), this._parents);
- }
- function selection_join(onenter, onupdate, onexit) {
- var enter = this.enter(), update = this, exit = this.exit();
- enter = typeof onenter === "function" ? onenter(enter) : enter.append(onenter + "");
- if (onupdate != null) update = onupdate(update);
- if (onexit == null) exit.remove(); else onexit(exit);
- return enter && update ? enter.merge(update).order() : update;
- }
- function selection_merge(selection) {
- for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
- for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
- if (node = group0[i] || group1[i]) {
- merge[i] = node;
- }
- }
- }
- for (; j < m0; ++j) {
- merges[j] = groups0[j];
- }
- return new Selection(merges, this._parents);
- }
- function selection_order() {
- for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) {
- for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
- if (node = group[i]) {
- if (next && node.compareDocumentPosition(next) ^ 4) next.parentNode.insertBefore(node, next);
- next = node;
- }
- }
- }
- return this;
- }
- function selection_sort(compare) {
- if (!compare) compare = ascending;
- function compareNode(a, b) {
- return a && b ? compare(a.__data__, b.__data__) : !a - !b;
- }
- for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) {
- for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) {
- if (node = group[i]) {
- sortgroup[i] = node;
- }
- }
- sortgroup.sort(compareNode);
- }
- return new Selection(sortgroups, this._parents).order();
- }
- function ascending(a, b) {
- return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
- }
- function selection_call() {
- var callback = arguments[0];
- arguments[0] = this;
- callback.apply(null, arguments);
- return this;
- }
- function selection_nodes() {
- var nodes = new Array(this.size()), i = -1;
- this.each(function() { nodes[++i] = this; });
- return nodes;
- }
- function selection_node() {
- for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
- for (var group = groups[j], i = 0, n = group.length; i < n; ++i) {
- var node = group[i];
- if (node) return node;
- }
- }
- return null;
- }
- function selection_size() {
- var size = 0;
- this.each(function() { ++size; });
- return size;
- }
- function selection_empty() {
- return !this.node();
- }
- function selection_each(callback) {
- for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
- for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) {
- if (node = group[i]) callback.call(node, node.__data__, i, group);
- }
- }
- return this;
- }
- function attrRemove(name) {
- return function() {
- this.removeAttribute(name);
- };
- }
- function attrRemoveNS(fullname) {
- return function() {
- this.removeAttributeNS(fullname.space, fullname.local);
- };
- }
- function attrConstant(name, value) {
- return function() {
- this.setAttribute(name, value);
- };
- }
- function attrConstantNS(fullname, value) {
- return function() {
- this.setAttributeNS(fullname.space, fullname.local, value);
- };
- }
- function attrFunction(name, value) {
- return function() {
- var v = value.apply(this, arguments);
- if (v == null) this.removeAttribute(name);
- else this.setAttribute(name, v);
- };
- }
- function attrFunctionNS(fullname, value) {
- return function() {
- var v = value.apply(this, arguments);
- if (v == null) this.removeAttributeNS(fullname.space, fullname.local);
- else this.setAttributeNS(fullname.space, fullname.local, v);
- };
- }
- function selection_attr(name, value) {
- var fullname = namespace(name);
- if (arguments.length < 2) {
- var node = this.node();
- return fullname.local
- ? node.getAttributeNS(fullname.space, fullname.local)
- : node.getAttribute(fullname);
- }
- return this.each((value == null
- ? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === "function"
- ? (fullname.local ? attrFunctionNS : attrFunction)
- : (fullname.local ? attrConstantNS : attrConstant)))(fullname, value));
- }
- function defaultView(node) {
- return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node
- || (node.document && node) // node is a Window
- || node.defaultView; // node is a Document
- }
- function styleRemove(name) {
- return function() {
- this.style.removeProperty(name);
- };
- }
- function styleConstant(name, value, priority) {
- return function() {
- this.style.setProperty(name, value, priority);
- };
- }
- function styleFunction(name, value, priority) {
- return function() {
- var v = value.apply(this, arguments);
- if (v == null) this.style.removeProperty(name);
- else this.style.setProperty(name, v, priority);
- };
- }
- function selection_style(name, value, priority) {
- return arguments.length > 1
- ? this.each((value == null
- ? styleRemove : typeof value === "function"
- ? styleFunction
- : styleConstant)(name, value, priority == null ? "" : priority))
- : styleValue(this.node(), name);
- }
- function styleValue(node, name) {
- return node.style.getPropertyValue(name)
- || defaultView(node).getComputedStyle(node, null).getPropertyValue(name);
- }
- function propertyRemove(name) {
- return function() {
- delete this[name];
- };
- }
- function propertyConstant(name, value) {
- return function() {
- this[name] = value;
- };
- }
- function propertyFunction(name, value) {
- return function() {
- var v = value.apply(this, arguments);
- if (v == null) delete this[name];
- else this[name] = v;
- };
- }
- function selection_property(name, value) {
- return arguments.length > 1
- ? this.each((value == null
- ? propertyRemove : typeof value === "function"
- ? propertyFunction
- : propertyConstant)(name, value))
- : this.node()[name];
- }
- function classArray(string) {
- return string.trim().split(/^|\s+/);
- }
- function classList(node) {
- return node.classList || new ClassList(node);
- }
- function ClassList(node) {
- this._node = node;
- this._names = classArray(node.getAttribute("class") || "");
- }
- ClassList.prototype = {
- add: function(name) {
- var i = this._names.indexOf(name);
- if (i < 0) {
- this._names.push(name);
- this._node.setAttribute("class", this._names.join(" "));
- }
- },
- remove: function(name) {
- var i = this._names.indexOf(name);
- if (i >= 0) {
- this._names.splice(i, 1);
- this._node.setAttribute("class", this._names.join(" "));
- }
- },
- contains: function(name) {
- return this._names.indexOf(name) >= 0;
- }
- };
- function classedAdd(node, names) {
- var list = classList(node), i = -1, n = names.length;
- while (++i < n) list.add(names[i]);
- }
- function classedRemove(node, names) {
- var list = classList(node), i = -1, n = names.length;
- while (++i < n) list.remove(names[i]);
- }
- function classedTrue(names) {
- return function() {
- classedAdd(this, names);
- };
- }
- function classedFalse(names) {
- return function() {
- classedRemove(this, names);
- };
- }
- function classedFunction(names, value) {
- return function() {
- (value.apply(this, arguments) ? classedAdd : classedRemove)(this, names);
- };
- }
- function selection_classed(name, value) {
- var names = classArray(name + "");
- if (arguments.length < 2) {
- var list = classList(this.node()), i = -1, n = names.length;
- while (++i < n) if (!list.contains(names[i])) return false;
- return true;
- }
- return this.each((typeof value === "function"
- ? classedFunction : value
- ? classedTrue
- : classedFalse)(names, value));
- }
- function textRemove() {
- this.textContent = "";
- }
- function textConstant(value) {
- return function() {
- this.textContent = value;
- };
- }
- function textFunction(value) {
- return function() {
- var v = value.apply(this, arguments);
- this.textContent = v == null ? "" : v;
- };
- }
- function selection_text(value) {
- return arguments.length
- ? this.each(value == null
- ? textRemove : (typeof value === "function"
- ? textFunction
- : textConstant)(value))
- : this.node().textContent;
- }
- function htmlRemove() {
- this.innerHTML = "";
- }
- function htmlConstant(value) {
- return function() {
- this.innerHTML = value;
- };
- }
- function htmlFunction(value) {
- return function() {
- var v = value.apply(this, arguments);
- this.innerHTML = v == null ? "" : v;
- };
- }
- function selection_html(value) {
- return arguments.length
- ? this.each(value == null
- ? htmlRemove : (typeof value === "function"
- ? htmlFunction
- : htmlConstant)(value))
- : this.node().innerHTML;
- }
- function raise() {
- if (this.nextSibling) this.parentNode.appendChild(this);
- }
- function selection_raise() {
- return this.each(raise);
- }
- function lower() {
- if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild);
- }
- function selection_lower() {
- return this.each(lower);
- }
- function selection_append(name) {
- var create = typeof name === "function" ? name : creator(name);
- return this.select(function() {
- return this.appendChild(create.apply(this, arguments));
- });
- }
- function constantNull() {
- return null;
- }
- function selection_insert(name, before) {
- var create = typeof name === "function" ? name : creator(name),
- select = before == null ? constantNull : typeof before === "function" ? before : selector(before);
- return this.select(function() {
- return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null);
- });
- }
- function remove() {
- var parent = this.parentNode;
- if (parent) parent.removeChild(this);
- }
- function selection_remove() {
- return this.each(remove);
- }
- function selection_cloneShallow() {
- var clone = this.cloneNode(false), parent = this.parentNode;
- return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
- }
- function selection_cloneDeep() {
- var clone = this.cloneNode(true), parent = this.parentNode;
- return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
- }
- function selection_clone(deep) {
- return this.select(deep ? selection_cloneDeep : selection_cloneShallow);
- }
- function selection_datum(value) {
- return arguments.length
- ? this.property("__data__", value)
- : this.node().__data__;
- }
- var filterEvents = {};
- exports.event = null;
- if (typeof document !== "undefined") {
- var element = document.documentElement;
- if (!("onmouseenter" in element)) {
- filterEvents = {mouseenter: "mouseover", mouseleave: "mouseout"};
- }
- }
- function filterContextListener(listener, index, group) {
- listener = contextListener(listener, index, group);
- return function(event) {
- var related = event.relatedTarget;
- if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) {
- listener.call(this, event);
- }
- };
- }
- function contextListener(listener, index, group) {
- return function(event1) {
- var event0 = exports.event; // Events can be reentrant (e.g., focus).
- exports.event = event1;
- try {
- listener.call(this, this.__data__, index, group);
- } finally {
- exports.event = event0;
- }
- };
- }
- function parseTypenames(typenames) {
- return typenames.trim().split(/^|\s+/).map(function(t) {
- var name = "", i = t.indexOf(".");
- if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
- return {type: t, name: name};
- });
- }
- function onRemove(typename) {
- return function() {
- var on = this.__on;
- if (!on) return;
- for (var j = 0, i = -1, m = on.length, o; j < m; ++j) {
- if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) {
- this.removeEventListener(o.type, o.listener, o.capture);
- } else {
- on[++i] = o;
- }
- }
- if (++i) on.length = i;
- else delete this.__on;
- };
- }
- function onAdd(typename, value, capture) {
- var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener;
- return function(d, i, group) {
- var on = this.__on, o, listener = wrap(value, i, group);
- if (on) for (var j = 0, m = on.length; j < m; ++j) {
- if ((o = on[j]).type === typename.type && o.name === typename.name) {
- this.removeEventListener(o.type, o.listener, o.capture);
- this.addEventListener(o.type, o.listener = listener, o.capture = capture);
- o.value = value;
- return;
- }
- }
- this.addEventListener(typename.type, listener, capture);
- o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture};
- if (!on) this.__on = [o];
- else on.push(o);
- };
- }
- function selection_on(typename, value, capture) {
- var typenames = parseTypenames(typename + ""), i, n = typenames.length, t;
- if (arguments.length < 2) {
- var on = this.node().__on;
- if (on) for (var j = 0, m = on.length, o; j < m; ++j) {
- for (i = 0, o = on[j]; i < n; ++i) {
- if ((t = typenames[i]).type === o.type && t.name === o.name) {
- return o.value;
- }
- }
- }
- return;
- }
- on = value ? onAdd : onRemove;
- if (capture == null) capture = false;
- for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture));
- return this;
- }
- function customEvent(event1, listener, that, args) {
- var event0 = exports.event;
- event1.sourceEvent = exports.event;
- exports.event = event1;
- try {
- return listener.apply(that, args);
- } finally {
- exports.event = event0;
- }
- }
- function dispatchEvent(node, type, params) {
- var window = defaultView(node),
- event = window.CustomEvent;
- if (typeof event === "function") {
- event = new event(type, params);
- } else {
- event = window.document.createEvent("Event");
- if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail;
- else event.initEvent(type, false, false);
- }
- node.dispatchEvent(event);
- }
- function dispatchConstant(type, params) {
- return function() {
- return dispatchEvent(this, type, params);
- };
- }
- function dispatchFunction(type, params) {
- return function() {
- return dispatchEvent(this, type, params.apply(this, arguments));
- };
- }
- function selection_dispatch(type, params) {
- return this.each((typeof params === "function"
- ? dispatchFunction
- : dispatchConstant)(type, params));
- }
- var root = [null];
- function Selection(groups, parents) {
- this._groups = groups;
- this._parents = parents;
- }
- function selection() {
- return new Selection([[document.documentElement]], root);
- }
- Selection.prototype = selection.prototype = {
- constructor: Selection,
- select: selection_select,
- selectAll: selection_selectAll,
- filter: selection_filter,
- data: selection_data,
- enter: selection_enter,
- exit: selection_exit,
- join: selection_join,
- merge: selection_merge,
- order: selection_order,
- sort: selection_sort,
- call: selection_call,
- nodes: selection_nodes,
- node: selection_node,
- size: selection_size,
- empty: selection_empty,
- each: selection_each,
- attr: selection_attr,
- style: selection_style,
- property: selection_property,
- classed: selection_classed,
- text: selection_text,
- html: selection_html,
- raise: selection_raise,
- lower: selection_lower,
- append: selection_append,
- insert: selection_insert,
- remove: selection_remove,
- clone: selection_clone,
- datum: selection_datum,
- on: selection_on,
- dispatch: selection_dispatch
- };
- function select(selector) {
- return typeof selector === "string"
- ? new Selection([[document.querySelector(selector)]], [document.documentElement])
- : new Selection([[selector]], root);
- }
- function create(name) {
- return select(creator(name).call(document.documentElement));
- }
- var nextId = 0;
- function local() {
- return new Local;
- }
- function Local() {
- this._ = "@" + (++nextId).toString(36);
- }
- Local.prototype = local.prototype = {
- constructor: Local,
- get: function(node) {
- var id = this._;
- while (!(id in node)) if (!(node = node.parentNode)) return;
- return node[id];
- },
- set: function(node, value) {
- return node[this._] = value;
- },
- remove: function(node) {
- return this._ in node && delete node[this._];
- },
- toString: function() {
- return this._;
- }
- };
- function sourceEvent() {
- var current = exports.event, source;
- while (source = current.sourceEvent) current = source;
- return current;
- }
- function point(node, event) {
- var svg = node.ownerSVGElement || node;
- if (svg.createSVGPoint) {
- var point = svg.createSVGPoint();
- point.x = event.clientX, point.y = event.clientY;
- point = point.matrixTransform(node.getScreenCTM().inverse());
- return [point.x, point.y];
- }
- var rect = node.getBoundingClientRect();
- return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop];
- }
- function mouse(node) {
- var event = sourceEvent();
- if (event.changedTouches) event = event.changedTouches[0];
- return point(node, event);
- }
- function selectAll(selector) {
- return typeof selector === "string"
- ? new Selection([document.querySelectorAll(selector)], [document.documentElement])
- : new Selection([selector == null ? [] : selector], root);
- }
- function touch(node, touches, identifier) {
- if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches;
- for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) {
- if ((touch = touches[i]).identifier === identifier) {
- return point(node, touch);
- }
- }
- return null;
- }
- function touches(node, touches) {
- if (touches == null) touches = sourceEvent().touches;
- for (var i = 0, n = touches ? touches.length : 0, points = new Array(n); i < n; ++i) {
- points[i] = point(node, touches[i]);
- }
- return points;
- }
- exports.clientPoint = point;
- exports.create = create;
- exports.creator = creator;
- exports.customEvent = customEvent;
- exports.local = local;
- exports.matcher = matcher;
- exports.mouse = mouse;
- exports.namespace = namespace;
- exports.namespaces = namespaces;
- exports.select = select;
- exports.selectAll = selectAll;
- exports.selection = selection;
- exports.selector = selector;
- exports.selectorAll = selectorAll;
- exports.style = styleValue;
- exports.touch = touch;
- exports.touches = touches;
- exports.window = defaultView;
- Object.defineProperty(exports, '__esModule', { value: true });
- }));
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