8 lines
11 KiB
JavaScript
8 lines
11 KiB
JavaScript
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/*!
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* wordcloud2.js
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* http://timdream.org/wordcloud2.js/
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*
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* Copyright 2011 - 2019 Tim Guan-tin Chien and contributors.
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* Released under the MIT license
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*/
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"use strict";window.setImmediate||(window.setImmediate=window.msSetImmediate||window.webkitSetImmediate||window.mozSetImmediate||window.oSetImmediate||function(){if(!window.postMessage||!window.addEventListener)return null;var t=[void 0],e="zero-timeout-message";return window.addEventListener("message",(function(a){if("string"==typeof a.data&&a.data.substr(0,e.length)===e){a.stopImmediatePropagation();var r=parseInt(a.data.substr(e.length),36);t[r]&&(t[r](),t[r]=void 0)}}),!0),window.clearImmediate=function(e){t[e]&&(t[e]=void 0)},function(a){var r=t.length;return t.push(a),window.postMessage(e+r.toString(36),"*"),r}}()||function(t){window.setTimeout(t,0)}),window.clearImmediate||(window.clearImmediate=window.msClearImmediate||window.webkitClearImmediate||window.mozClearImmediate||window.oClearImmediate||function(t){window.clearTimeout(t)}),function(t){var e=function(){var t=document.createElement("canvas");if(!t||!t.getContext)return!1;var e=t.getContext("2d");return!!e&&(!!e.getImageData&&(!!e.fillText&&(!!Array.prototype.some&&!!Array.prototype.push)))}(),a=function(){if(e){for(var t,a,r=document.createElement("canvas").getContext("2d"),i=20;i;){if(r.font=i.toString(10)+"px sans-serif",r.measureText("Ｗ").width===t&&r.measureText("m").width===a)return i+1;t=r.measureText("Ｗ").width,a=r.measureText("m").width,i--}return 0}}(),r=function(t){for(var e,a,r=t.length;r;)e=Math.floor(Math.random()*r),a=t[--r],t[r]=t[e],t[e]=a;return t},i={},o=function(t,o){if(e){var n=Math.floor(Math.random()*Date.now());Array.isArray(t)||(t=[t]),t.forEach((function(e,a){if("string"==typeof e){if(t[a]=document.getElementById(e),!t[a])throw new Error("The element id specified is not found.")}else if(!e.tagName&&!e.appendChild)throw new Error("You must pass valid HTML elements, or ID of the element.")}));var s={list:[],fontFamily:'"Trebuchet MS", "Heiti TC", "微軟正黑體", "Arial Unicode MS", "Droid Fallback Sans", sans-serif',fontWeight:"normal",color:"random-dark",minSize:0,weightFactor:1,clearCanvas:!0,backgroundColor:"#fff",gridSize:8,drawOutOfBound:!1,shrinkToFit:!1,origin:null,drawMask:!1,maskColor:"rgba(255,0,0,0.3)",maskGapWidth:.3,wait:0,abortThreshold:0,abort:function(){},minRotation:-Math.PI/2,maxRotation:Math.PI/2,rotationSteps:0,shuffle:!0,rotateRatio:.1,shape:"circle",ellipticity:.65,classes:null,hover:null,click:null};if(o)for(var l in o)l in s&&(s[l]=o[l]);if("function"!=typeof s.weightFactor){var f=s.weightFactor;s.weightFactor=function(t){return t*f}}if("function"!=typeof s.shape)switch(s.shape){case"circle":default:s.shape="circle";break;case"cardioid":s.shape=function(t){return 1-Math.sin(t)};break;case"diamond":s.shape=function(t){var e=t%(2*Math.PI/4);return 1/(Math.cos(e)+Math.sin(e))};break;case"square":s.shape=function(t){return Math.min(1/Math.abs(Math.cos(t)),1/Math.abs(Math.sin(t)))};break;case"triangle-forward":s.shape=function(t){var e=t%(2*Math.PI/3);return 1/(Math.cos(e)+Math.sqrt(3)*Math.sin(e))};break;case"triangle":case"triangle-upright":s.shape=function(t){var e=(t+3*Math.PI/2)%(2*Math.PI/3);return 1/(Math.cos(e)+Math.sqrt(3)*Math.sin(e))};break;case"pentagon":s.shape=function(t){var e=(t+.955)%(2*Math.PI/5);return 1/(Math.cos(e)+.726543*Math.sin(e))};break;case"star":s.shape=function(t){var e=(t+.955)%(2*Math.PI/10);return(t+.955)%(2*Math.PI/5)-2*Math.PI/10>=0?1/(Math.cos(2*Math.PI/10-e)+3.07768*Math.sin(2*Math.PI/10-e)):1/(Math.cos(e)+3.07768*Math.sin(e))}}s.gridSize=Math.max(Math.floor(s.gridSize),4);var d,c,h,u,m,w,g,v,M=s.gridSize,p=M-s.maskGapWidth,x=Math.abs(s.maxRotation-s.minRotation),b=Math.abs(Math.floor(s.rotationSteps)),T=Math.min(s.maxRotation,s.minRotation);switch(s.color){case"random-dark":g=function(){return L(10,50)};break;case"random-light":g=function(){return L(50,90)};break;default:"function"==typeof s.color&&(g=s.color)}"function"==typeof s.fontWeight&&(v=s.fontWeight);var y=null;"function"==typeof s.classes&&(y=s.classes);var I,k=!1,C=[],S=function(t){var e,a,r=t.currentTarget,i=r.getBoundingClientRect();t.touches?(e=t.touches[0].clientX,a=t.touches[0].clientY):(e=t.clientX,a=t
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