billboard.js/dist/plugin/billboardjs-plugin-stanford.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
 */
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S=function(){return{colors:void 0,epochs:[],lines:[],scale_min:void 0,scale_max:void 0,scale_width:20,scale_format:void 0,padding_top:0,padding_right:0,padding_bottom:0,padding_left:0,regions:[]}},_="bb-colorscale",O="bb-stanford-elements",j="bb-stanford-line",C="bb-stanford-lines",E="bb-stanford-region",$="bb-stanford-regions";function k(t,e){return t.epochs<e.epochs?-1:t.epochs>e.epochs?1:0}function M(t){for(var e,r=function(t){for(var e,r,n=0,a=0,o=t.length,i=o-1;a<o;i=a,a++)e=t[a],r=t[i],n+=e.x*r.y,n-=e.y*r.x;return n/2}(t),n=0,a=0,o=0,i=t.length,c=i-1;o<i;c=o,o++){var s=t[o],l=t[c];e=s.x*l.y-l.x*s.y,n+=(s.x+l.x)*e,a+=(s.y+l.y)*e}return{x:n/(e=6*r),y:a/e}}var L=function(){function t(t){this.owner=void 0,this.owner=t;var e=t.$$.$el.main.select(".bb-chart").append("g").attr("class",O);e.append("g").attr("class",C),e.append("g").attr("class",$)}var e=t.prototype;return e.updateStanfordLines=function(t){var e=this.owner.$$,r=e.config,n=e.$el.main,a=r.axis_rotated,o=this.xvCustom.bind(e),i=this.yvCustom.bind(e),c=n.select("."+C).style("shape-rendering","geometricprecision").selectAll("."+j).data(this.owner.config.lines);c.exit().transition().duration(t).style("opacity","0").remove();var s=c.enter().append("g");s.append("line").style("opacity","0"),s.merge(c).attr("class",(function(t){return j+(t.class?" 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