billboard.js/dist/plugin/billboardjs-plugin-textoverlap.min.js

Re-usable easy interface JavaScript chart library, based on D3 v4+

/*!
 * Copyright (c) 2017 ~ present NAVER Corp.
 * billboard.js project is licensed under the MIT license
 *
 * billboard.js, JavaScript chart library
 * https://naver.github.io/billboard.js/
 *
 * @version 3.3.3
 * @requires billboard.js
 * @summary billboard.js plugin
 */
!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t(require("d3-delaunay"),require("d3-polygon"),require("d3-selection"),require("d3-brush")):"function"==typeof define&&define.amd?define("bb",["d3-delaunay","d3-polygon","d3-selection","d3-brush"],t):"object"==typeof exports?exports.bb=t(require("d3-delaunay"),require("d3-polygon"),require("d3-selection"),require("d3-brush")):(e.bb=e.bb||{},e.bb.plugin=e.bb.plugin||{},e.bb.plugin.textoverlap=t(e.d3,e.d3,e.d3,e.d3))}(this,(function(e,t,n,o){return function(){"use strict";var r={3:function(e){e.exports=o},12:function(t){t.exports=e},13:function(e){e.exports=t},1:function(e){e.exports=n}},i={};function c(e){var t=i[e];if(void 0!==t)return t.exports;var n=i[e]={exports:{}};return r[e](n,n.exports,c),n.exports}c.d=function(e,t){for(var n in t)c.o(t,n)&&!c.o(e,n)&&Object.defineProperty(e,n,{enumerable:!0,get:t[n]})},c.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)};var u={};return function(){function e(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}function t(e,n){return t=Object.setPrototypeOf||function(e,t){return e.__proto__=t,e},t(e,n)}c.d(u,{default:function(){return d}});var n=c(12),o=c(13);c(1),c(3);var r="object"==typeof globalThis&&null!==globalThis&&globalThis.Object===Object&&globalThis||"object"==typeof global&&null!==global&&global.Object===Object&&global||"object"==typeof self&&null!==self&&self.Object===Object&&self||Function("return this")();r.requestIdleCallback=r.requestIdleCallback||function(e){return setTimeout(e,1)},r.cancelIdleCallback=r.cancelIdleCallback||function(e){return clearTimeout(e)};var i=null==r?void 0:r.document;var a=function(e){return void 0!==e},l=function(e){return"object"==typeof e};!function(){try{new MouseEvent("t")}catch(e){return function(e,t,n){void 0===n&&(n={bubbles:!1,cancelable:!1,screenX:0,screenY:0,clientX:0,clientY:0});var o=i.createEvent("MouseEvent");o.initMouseEvent(t,n.bubbles,n.cancelable,r,0,n.screenX,n.screenY,n.clientX,n.clientY,!1,!1,!1,!1,0,null),e.dispatchEvent(o)}}}();function s(e){var t,n,o,r=this.config,i=function(){var e=n.shift();return e&&t&&l(t)&&e in t?(t=t[e],i()):e?void 0:t};Object.keys(r).forEach((function(c){t=e,n=c.split("_"),o=i(),a(o)&&(r[c]=o)}))}var f=function(){function e(e){void 0===e&&(e={}),this.$$=void 0,this.options=void 0,this.options=e}var t=e.prototype;return t.$beforeInit=function(){},t.$init=function(){},t.$afterInit=function(){},t.$redraw=function(){},t.$willDestroy=function(){var e=this;Object.keys(this).forEach((function(t){e[t]=null,delete e[t]}))},e}();f.version="3.3.3";var b=function(){return{selector:void 0,extent:1,area:0}},d=function(r){var i,c;function u(t){var n=r.call(this,t)||this;return n.config=void 0,n.config=new b,e(n)||e(n)}c=r,(i=u).prototype=Object.create(c.prototype),i.prototype.constructor=i,t(i,c);var a=u.prototype;return a.$init=function(){s.call(this,this.options)},a.$redraw=function(){var e=this.$$.$el,t=this.config.selector,n=t?e.main.selectAll(t):e.text;n.empty()||this.preventLabelOverlap(n)},a.generateVoronoi=function(e){var t=this.$$.scale,o=["x","y"].map((function(e){return t[e].domain()})),r=o[0],i=o[1],c=[i[0],r[1]];return r[1]=c[0],i[0]=c[1],n.Delaunay.from(e).voronoi([].concat(r,i))},a.preventLabelOverlap=function(e){var t=this.config,n=t.extent,r=t.area,i=e.data().map((function(e){return[e.index,e.value]})),c=this.generateVoronoi(i),u=0;e.each((function(){var e=c.cellPolygon(u);if(e&&this){var t=i[u],a=t[0],l=t[1],s=(0,o.polygonCentroid)(e),f=s[0],b=s[1],d=Math.abs((0,o.polygonArea)(e)),p=Math.round(Math.atan2(b-l,f-a)/Math.PI*2),v=n*(0===p?1:-1),h=-1===p?-n:n+5,y=1===Math.abs(p)?"middle":0===p?"start":"end";this.style.display=d<r?"none":"",this.setAttribute("text-anchor",y),this.setAttribute("dy","0."+(1===p?71:35)+"em"),this.setAttribute("transform","translate("+v+", "+h+")")}u++}))},u}(f)}(),u=u.default}()}));