diff --git a/c3.js b/c3.js
index 61d2981..605ec2e 100644
--- a/c3.js
+++ b/c3.js
@@ -6621,7 +6621,6 @@
         var scale = d3.scale.linear(), orient = "bottom", innerTickSize = 6, outerTickSize, tickPadding = 3, tickValues = null, tickFormat, tickArguments;
 
         var tickOffset = 0, tickCulling = true, tickCentered;
-        var axis_g;
 
         params = params || {};
         outerTickSize = params.withOuterTick ? 6 : 0;
@@ -6688,9 +6687,9 @@
             return size;
         }
         function axis(g) {
-            axis_g = g;
             g.each(function () {
-                var g = d3.select(this);
+                var g = axis.g = d3.select(this);
+
                 var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = copyScale();
 
                 var ticks = tickValues ? tickValues : generateTicks(scale1),
@@ -6882,8 +6881,8 @@
                 interval = tickOffset * 2;
             }
             else {
-                length = axis_g.select('path.domain').node().getTotalLength() - outerTickSize * 2;
-                interval = length / axis_g.selectAll('line').size();
+                length = axis.g.select('path.domain').node().getTotalLength() - outerTickSize * 2;
+                interval = length / axis.g.selectAll('line').size();
             }
             return interval;
         };
diff --git a/c3.min.js b/c3.min.js
index 5121ae0..0e08c27 100644
--- a/c3.min.js
+++ b/c3.min.js
@@ -1,4 +1,4 @@
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i(a){if(w)return w;var b={h:11.5,w:5.5};return a.select("text").text(h).each(function(a){var c=this.getBoundingClientRect(),d=h(a),e=c.height,f=d?c.width/d.length:void 0;e&&f&&(b.h=e,b.w=f)}).text(""),w=b,b}function j(j){o=j,j.each(function(){function j(a,c){function d(a,b){f=void 0;for(var h=1;h<b.length;h++)if(" "===b.charAt(h)&&(f=h),e=b.substr(0,h+1),g=O.w*e.length,g>c)return d(a.concat(b.substr(0,f?f:h)),b.slice(f?f+1:h));return a.concat(b)}var e,f,g,i=h(a),j=[];return"[object Array]"===Object.prototype.toString.call(i)?i:((!c||0>=c)&&(c=R?95:b.isCategory?Math.ceil(z(A[1])-z(A[0]))-12:110),d(j,i+""))}function l(a,b){var c=O.h;return 0===b&&(c="left"===q||"right"===q?-((P[a.index]-1)*(O.h/2)-3):".71em"),c}function m(a){var b=p(a)+(n?0:u);return F[0]<b&&b<F[1]?r:0}var o,v,w,x=a.select(this),y=this.__chart__||p,z=this.__chart__=g(),A=t?t:f(z),B=x.selectAll(".tick").data(A,z),C=B.enter().insert("g",".domain").attr("class","tick").style("opacity",1e-6),D=B.exit().remove(),E=a.transition(B).style("opacity",1),F=p.rangeExtent?p.rangeExtent():e(p.range()),G=x.selectAll(".domain").data([0]),H=(G.enter().append("path").attr("class","domain"),a.transition(G));C.append("line"),C.append("text");var I=C.select("line"),J=E.select("line"),K=C.select("text"),L=E.select("text");b.isCategory?(u=Math.ceil((z(1)-z(0))/2),v=n?0:u,w=n?u:0):u=v=0;var M,N,O=i(x.select(".tick")),P=[],Q=Math.max(r,0)+s,R="left"===q||"right"===q;switch(M=B.select("text"),N=M.selectAll("tspan").data(function(a,c){var d=b.tickMultiline?j(a,b.tickWidth):[].concat(h(a));return P[c]=d.length,d.map(function(a){return{index:c,splitted:a}})}),N.enter().append("tspan"),N.exit().remove(),N.text(function(a){return a.splitted}),q){case"bottom":o=c,I.attr("y2",r),K.attr("y",Q),J.attr("x1",v).attr("x2",v).attr("y2",m),L.attr("x",0).attr("y",Q),M.style("text-anchor","middle"),N.attr("x",0).attr("dy",l),H.attr("d","M"+F[0]+","+k+"V0H"+F[1]+"V"+k);break;case"top":o=c,I.attr("y2",-r),K.attr("y",-Q),J.attr("x2",0).attr("y2",-r),L.attr("x",0).attr("y",-Q),M.style("text-anchor","middle"),N.attr("x",0).attr("dy","0em"),H.attr("d","M"+F[0]+","+-k+"V0H"+F[1]+"V"+-k);break;case"left":o=d,I.attr("x2",-r),K.attr("x",-Q),J.attr("x2",-r).attr("y1",w).attr("y2",w),L.attr("x",-Q).attr("y",u),M.style("text-anchor","end"),N.attr("x",-Q).attr("dy",l),H.attr("d","M"+-k+","+F[0]+"H0V"+F[1]+"H"+-k);break;case"right":o=d,I.attr("x2",r),K.attr("x",Q),J.attr("x2",r).attr("y2",0),L.attr("x",Q).attr("y",0),M.style("text-anchor","start"),N.attr("x",Q).attr("dy",l),H.attr("d","M"+k+","+F[0]+"H0V"+F[1]+"H"+k)}if(z.rangeBand){var S=z,T=S.rangeBand()/2;y=z=function(a){return S(a)+T}}else y.rangeBand?y=z:D.call(o,z);C.call(o,y),E.call(o,z)})}var k,l,m,n,o,p=a.scale.linear(),q="bottom",r=6,s=3,t=null,u=0,v=!0;return b=b||{},k=b.withOuterTick?6:0,j.scale=function(a){return arguments.length?(p=a,j):p},j.orient=function(a){return arguments.length?(q=a in{top:1,right:1,bottom:1,left:1}?a+"":"bottom",j):q},j.tickFormat=function(a){return arguments.length?(l=a,j):l},j.tickCentered=function(a){return arguments.length?(n=a,j):n},j.tickOffset=function(){return u},j.tickInterval=function(){var a,c;return b.isCategory?a=2*u:(c=o.select("path.domain").node().getTotalLength()-2*k,a=c/o.selectAll("line").size()),a},j.ticks=function(){return arguments.length?(m=arguments,j):m},j.tickCulling=function(a){return arguments.length?(v=a,j):v},j.tickValues=function(a){if("function"==typeof a)t=function(){return a(p.domain())};else{if(!arguments.length)return t;t=a}return j},j}var e,f,g={version:"0.4.10-rc1"};g.generate=function(a){return new b(a)},g.chart={fn:b.prototype,internal:{fn:c.prototype}},e=g.chart.fn,f=g.chart.internal.fn,f.init=function(){var a=this,b=a.config;if(a.initParams(),b.data_url)a.convertUrlToData(b.data_url,b.data_mimeType,b.data_keys,a.initWithData);else if(b.data_json)a.initWithData(a.convertJsonToData(b.data_json,b.data_keys));else if(b.data_rows)a.initWithData(a.convertRowsToData(b.data_rows));else{if(!b.data_columns)throw Error("url or json or rows or columns is required.");a.initWithData(a.convertColumnsToData(b.data_columns))}},f.initParams=function(){var a=this,b=a.d3,c=a.config;a.clipId="c3-"+ +new Date+"-clip",a.clipIdForXAxis=a.clipId+"-xaxis",a.clipIdForYAxis=a.clipId+"-yaxis",a.clipIdForGrid=a.clipId+"-grid",a.clipIdForSubchart=a.clipId+"-subchart",a.clipPath=a.getClipPath(a.clipId),a.clipPathForXAxis=a.getClipPath(a.clipIdForXAxis),a.clipPathForYAxis=a.getClipPath(a.clipIdForYAxis),a.clipPathForGrid=a.getClipPath(a.clipIdForGrid),a.clipPathForSubchart=a.getClipPath(a.clipIdForSubchart),a.dragStart=null,a.dragging=!1,a.flowing=!1,a.cancelClick=!1,a.mouseover=!1,a.transiting=!1,a.color=a.generateColor(),a.levelColor=a.generateLevelColor(),a.dataTimeFormat=c.data_xLocaltime?b.time.format:b.time.format.utc,a.axisTimeFormat=c.axis_x_localtime?b.time.format:b.time.format.utc,a.defaultAxisTimeFormat=a.axisTimeFormat.multi([[".%L",function(a){return a.getMilliseconds()}],[":%S",function(a){return a.getSeconds()}],["%I:%M",function(a){return a.getMinutes()}],["%I %p",function(a){return a.getHours()}],["%-m/%-d",function(a){return a.getDay()&&1!==a.getDate()}],["%-m/%-d",function(a){return 1!==a.getDate()}],["%-m/%-d",function(a){return a.getMonth()}],["%Y/%-m/%-d",function(){return!0}]]),a.hiddenTargetIds=[],a.hiddenLegendIds=[],a.focusedTargetIds=[],a.defocusedTargetIds=[],a.xOrient=c.axis_rotated?"left":"bottom",a.yOrient=c.axis_rotated?c.axis_y_inner?"top":"bottom":c.axis_y_inner?"right":"left",a.y2Orient=c.axis_rotated?c.axis_y2_inner?"bottom":"top":c.axis_y2_inner?"left":"right",a.subXOrient=c.axis_rotated?"left":"bottom",a.isLegendRight="right"===c.legend_position,a.isLegendInset="inset"===c.legend_position,a.isLegendTop="top-left"===c.legend_inset_anchor||"top-right"===c.legend_inset_anchor,a.isLegendLeft="top-left"===c.legend_inset_anchor||"bottom-left"===c.legend_inset_anchor,a.legendStep=0,a.legendItemWidth=0,a.legendItemHeight=0,a.currentMaxTickWidths={x:0,y:0,y2:0},a.rotated_padding_left=30,a.rotated_padding_right=c.axis_rotated&&!c.axis_x_show?0:30,a.rotated_padding_top=5,a.withoutFadeIn={},a.intervalForObserveInserted=void 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g.bindto.node?g.bindto:f.select(g.bindto):f.selectAll([]),e.selectChart.empty()&&(e.selectChart=f.select(document.createElement("div")).style("opacity",0),e.observeInserted(e.selectChart),h=!1),e.selectChart.html("").classed("c3",!0),e.data.xs={},e.data.targets=e.convertDataToTargets(b),g.data_filter&&(e.data.targets=e.data.targets.filter(g.data_filter)),g.data_hide&&e.addHiddenTargetIds(g.data_hide===!0?e.mapToIds(e.data.targets):g.data_hide),g.legend_hide&&e.addHiddenLegendIds(g.legend_hide===!0?e.mapToIds(e.data.targets):g.legend_hide),e.hasType("gauge")&&(g.legend_show=!1),e.updateSizes(),e.updateScales(),e.x.domain(f.extent(e.getXDomain(e.data.targets))),e.y.domain(e.getYDomain(e.data.targets,"y")),e.y2.domain(e.getYDomain(e.data.targets,"y2")),e.subX.domain(e.x.domain()),e.subY.domain(e.y.domain()),e.subY2.domain(e.y2.domain()),e.orgXDomain=e.x.domain(),e.brush&&e.brush.scale(e.subX),g.zoom_enabled&&e.zoom.scale(e.x),e.svg=e.selectChart.append("svg").style("overflow","hidden").on("mouseenter",function(){return g.onmouseover.call(e)}).on("mouseleave",function(){return g.onmouseout.call(e)}),c=e.svg.append("defs"),e.clipChart=e.appendClip(c,e.clipId),e.clipXAxis=e.appendClip(c,e.clipIdForXAxis),e.clipYAxis=e.appendClip(c,e.clipIdForYAxis),e.clipGrid=e.appendClip(c,e.clipIdForGrid),e.clipSubchart=e.appendClip(c,e.clipIdForSubchart),e.updateSvgSize(),d=e.main=e.svg.append("g").attr("transform",e.getTranslate("main")),e.initSubchart&&e.initSubchart(),e.initTooltip&&e.initTooltip(),e.initLegend&&e.initLegend(),d.append("text").attr("class",i.text+" "+i.empty).attr("text-anchor","middle").attr("dominant-baseline","middle"),e.initRegion(),e.initGrid(),d.append("g").attr("clip-path",e.clipPath).attr("class",i.chart),g.grid_lines_front&&e.initGridLines(),e.initEventRect(),e.initChartElements(),d.insert("rect",g.zoom_privileged?null:"g."+i.regions).attr("class",i.zoomRect).attr("width",e.width).attr("height",e.height).style("opacity",0).on("dblclick.zoom",null),g.axis_x_extent&&e.brush.extent(e.getDefaultExtent()),e.initAxis(),e.updateTargets(e.data.targets),h&&(e.updateDimension(),e.config.oninit.call(e),e.redraw({withTransform:!0,withUpdateXDomain:!0,withUpdateOrgXDomain:!0,withTransitionForAxis:!1})),null==a.onresize&&(a.onresize=e.generateResize()),a.onresize.add&&(a.onresize.add(function(){g.onresize.call(e)}),a.onresize.add(function(){e.api.flush()}),a.onresize.add(function(){g.onresized.call(e)})),e.api.element=e.selectChart.node()},f.smoothLines=function(a,b){var c=this;"grid"===b&&a.each(function(){var a=c.d3.select(this),b=a.attr("x1"),d=a.attr("x2"),e=a.attr("y1"),f=a.attr("y2");a.attr({x1:Math.ceil(b),x2:Math.ceil(d),y1:Math.ceil(e),y2:Math.ceil(f)})})},f.updateSizes=function(){var a=this,b=a.config,c=a.legend?a.getLegendHeight():0,d=a.legend?a.getLegendWidth():0,e=a.isLegendRight||a.isLegendInset?0:c,f=a.hasArcType(),g=b.axis_rotated||f?0:a.getHorizontalAxisHeight("x"),h=b.subchart_show&&!f?b.subchart_size_height+g:0;a.currentWidth=a.getCurrentWidth(),a.currentHeight=a.getCurrentHeight(),a.margin=b.axis_rotated?{top:a.getHorizontalAxisHeight("y2")+a.getCurrentPaddingTop(),right:f?0:a.getCurrentPaddingRight(),bottom:a.getHorizontalAxisHeight("y")+e+a.getCurrentPaddingBottom(),left:h+(f?0:a.getCurrentPaddingLeft())}:{top:4+a.getCurrentPaddingTop(),right:f?0:a.getCurrentPaddingRight(),bottom:g+h+e+a.getCurrentPaddingBottom(),left:f?0:a.getCurrentPaddingLeft()},a.margin2=b.axis_rotated?{top:a.margin.top,right:0/0,bottom:20+e,left:a.rotated_padding_left}:{top:a.currentHeight-h-e,right:0/0,bottom:g+e,left:a.margin.left},a.margin3={top:0,right:0/0,bottom:0,left:0},a.updateSizeForLegend&&a.updateSizeForLegend(c,d),a.width=a.currentWidth-a.margin.left-a.margin.right,a.height=a.currentHeight-a.margin.top-a.margin.bottom,a.width<0&&(a.width=0),a.height<0&&(a.height=0),a.width2=b.axis_rotated?a.margin.left-a.rotated_padding_left-a.rotated_padding_right:a.width,a.height2=b.axis_rotated?a.height:a.currentHeight-a.margin2.top-a.margin2.bottom,a.width2<0&&(a.width2=0),a.height2<0&&(a.height2=0),a.arcWidth=a.width-(a.isLegendRight?d+10:0),a.arcHeight=a.height-(a.isLegendRight?0:10),a.hasType("gauge")&&(a.arcHeight+=a.height-a.getGaugeLabelHeight()),a.updateRadius&&a.updateRadius(),a.isLegendRight&&f&&(a.margin3.left=a.arcWidth/2+1.1*a.radiusExpanded)},f.updateTargets=function(a){var b=this;b.updateTargetsForText(a),b.updateTargetsForBar(a),b.updateTargetsForLine(a),b.hasArcType()&&b.updateTargetsForArc&&b.updateTargetsForArc(a),b.updateTargetsForSubchart&&b.updateTargetsForSubchart(a),b.showTargets()},f.showTargets=function(){var a=this;a.svg.selectAll("."+i.target).filter(function(b){return a.isTargetToShow(b.id)}).transition().duration(a.config.transition_duration).style("opacity",1)},f.redraw=function(a,b){var c,d,e,f,g,h,j,k,l,m,n,o,p,q,r,s,u,v,w,x,y,z,A,B,C,D,E,F,G,H=this,I=H.main,J=H.d3,K=H.config,L=H.getShapeIndices(H.isAreaType),M=H.getShapeIndices(H.isBarType),N=H.getShapeIndices(H.isLineType),O=H.hasArcType(),P=H.filterTargetsToShow(H.data.targets),Q=H.xv.bind(H);if(a=a||{},c=t(a,"withY",!0),d=t(a,"withSubchart",!0),e=t(a,"withTransition",!0),h=t(a,"withTransform",!1),j=t(a,"withUpdateXDomain",!1),k=t(a,"withUpdateOrgXDomain",!1),l=t(a,"withTrimXDomain",!0),p=t(a,"withUpdateXAxis",j),m=t(a,"withLegend",!1),n=t(a,"withEventRect",!0),o=t(a,"withDimension",!0),f=t(a,"withTransitionForExit",e),g=t(a,"withTransitionForAxis",e),w=e?K.transition_duration:0,x=f?w:0,y=g?w:0,b=b||H.generateAxisTransitions(y),m&&K.legend_show?H.updateLegend(H.mapToIds(H.data.targets),a,b):o&&H.updateDimension(!0),H.isCategorized()&&0===P.length&&H.x.domain([0,H.axes.x.selectAll(".tick").size()]),P.length?(H.updateXDomain(P,j,k,l),K.axis_x_tick_values||(B=H.updateXAxisTickValues(P))):(H.xAxis.tickValues([]),H.subXAxis.tickValues([])),K.zoom_rescale&&!a.flow&&(E=H.x.orgDomain()),H.y.domain(H.getYDomain(P,"y",E)),H.y2.domain(H.getYDomain(P,"y2",E)),!K.axis_y_tick_values&&K.axis_y_tick_count&&H.yAxis.tickValues(H.generateTickValues(H.y.domain(),K.axis_y_tick_count)),!K.axis_y2_tick_values&&K.axis_y2_tick_count&&H.y2Axis.tickValues(H.generateTickValues(H.y2.domain(),K.axis_y2_tick_count)),H.redrawAxis(b,O),H.updateAxisLabels(e),(j||p)&&P.length)if(K.axis_x_tick_culling&&B){for(C=1;C<B.length;C++)if(B.length/C<K.axis_x_tick_culling_max){D=C;break}H.svg.selectAll("."+i.axisX+" 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0,u=H.generateXYForText(L,M,N,!0),v=H.generateXYForText(L,M,N,!1),c&&(H.subY.domain(H.getYDomain(P,"y")),H.subY2.domain(H.getYDomain(P,"y2"))),H.tooltip.style("display","none"),H.updateXgridFocus(),I.select("text."+i.text+"."+i.empty).attr("x",H.width/2).attr("y",H.height/2).text(K.data_empty_label_text).transition().style("opacity",P.length?0:1),H.updateGrid(w),H.updateRegion(w),H.updateBar(x),H.updateLine(x),H.updateArea(x),H.updateCircle(),H.hasDataLabel()&&H.updateText(x),H.redrawArc&&H.redrawArc(w,x,h),H.redrawSubchart&&H.redrawSubchart(d,b,w,x,L,M,N),I.selectAll("."+i.selectedCircles).filter(H.isBarType.bind(H)).selectAll("circle").remove(),K.interaction_enabled&&!a.flow&&n&&(H.redrawEventRect(),H.updateZoom&&H.updateZoom()),H.updateCircleY(),F=(H.config.axis_rotated?H.circleY:H.circleX).bind(H),G=(H.config.axis_rotated?H.circleX:H.circleY).bind(H),a.flow&&(A=H.generateFlow({targets:P,flow:a.flow,duration:w,drawBar:r,drawLine:s,drawArea:q,cx:F,cy:G,xv:Q,xForText:u,yForText:v})),w&&H.isTabVisible()?J.transition().duration(w).each(function(){var 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b.size_width?b.size_width:a.getParentWidth()},f.getCurrentHeight=function(){var a=this,b=a.config,c=b.size_height?b.size_height:a.getParentHeight();return c>0?c:320/(a.hasType("gauge")?2:1)},f.getCurrentPaddingTop=function(){var a=this.config;return j(a.padding_top)?a.padding_top:0},f.getCurrentPaddingBottom=function(){var a=this.config;return j(a.padding_bottom)?a.padding_bottom:0},f.getCurrentPaddingLeft=function(a){var b=this,c=b.config;return j(c.padding_left)?c.padding_left:c.axis_rotated?c.axis_x_show?Math.max(o(b.getAxisWidthByAxisId("x",a)),40):1:!c.axis_y_show||c.axis_y_inner?b.getYAxisLabelPosition().isOuter?30:1:o(b.getAxisWidthByAxisId("y",a))},f.getCurrentPaddingRight=function(){var a=this,b=a.config,c=10,d=a.isLegendRight?a.getLegendWidth()+20:0;return j(b.padding_right)?b.padding_right+1:b.axis_rotated?c+d:!b.axis_y2_show||b.axis_y2_inner?2+d+(a.getY2AxisLabelPosition().isOuter?20:0):o(a.getAxisWidthByAxisId("y2"))+d},f.getParentRectValue=function(a){for(var 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b=this,c=b.config,d=30;return"x"!==a||c.axis_x_show?"x"===a&&c.axis_x_height?c.axis_x_height:"y"!==a||c.axis_y_show?"y2"!==a||c.axis_y2_show?("x"===a&&!c.axis_rotated&&c.axis_x_tick_rotate&&(d=b.getMaxTickWidth(a)*Math.cos(Math.PI*(90-c.axis_x_tick_rotate)/180)),d+(b.getAxisLabelPositionById(a).isInner?0:10)+("y2"===a?-10:0)):b.rotated_padding_top:!c.legend_show||b.isLegendRight||b.isLegendInset?1:10:8},f.getEventRectWidth=function(){return this.xAxis.tickInterval()},f.getShapeIndices=function(a){var b,c,d=this,e=d.config,f={},g=0;return d.filterTargetsToShow(d.data.targets.filter(a,d)).forEach(function(a){for(b=0;b<e.data_groups.length;b++)if(!(e.data_groups[b].indexOf(a.id)<0))for(c=0;c<e.data_groups[b].length;c++)if(e.data_groups[b][c]in f){f[a.id]=f[e.data_groups[b][c]];break}m(f[a.id])&&(f[a.id]=g++)}),f.__max__=g-1,f},f.getShapeX=function(a,b,c,d){var e=this,f=d?e.subX:e.x;return function(d){var e=d.id in c?c[d.id]:0;return 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b.isSplineType(a)?"cardinal":b.isStepType(a)?b.config.line_step_type:"linear"},f.initLine=function(){var a=this;a.main.select("."+i.chart).append("g").attr("class",i.chartLines)},f.updateTargetsForLine=function(a){var b,c,d=this,e=d.config,f=d.classChartLine.bind(d),g=d.classLines.bind(d),h=d.classAreas.bind(d),j=d.classCircles.bind(d),k=d.classFocus.bind(d);b=d.main.select("."+i.chartLines).selectAll("."+i.chartLine).data(a).attr("class",function(a){return f(a)+k(a)}),c=b.enter().append("g").attr("class",f).style("opacity",0).style("pointer-events","none"),c.append("g").attr("class",g),c.append("g").attr("class",h),c.append("g").attr("class",function(a){return d.generateClass(i.selectedCircles,a.id)}),c.append("g").attr("class",j).style("cursor",function(a){return e.data_selection_isselectable(a)?"pointer":null}),a.forEach(function(a){d.main.selectAll("."+i.selectedCircles+d.getTargetSelectorSuffix(a.id)).selectAll("."+i.selectedCircle).each(function(b){b.value=a.values[b.index].value})})},f.updateLine=function(a){var b=this;b.mainLine=b.main.selectAll("."+i.lines).selectAll("."+i.line).data(b.lineData.bind(b)),b.mainLine.enter().append("path").attr("class",b.classLine.bind(b)).style("stroke",b.color),b.mainLine.style("opacity",b.initialOpacity.bind(b)).style("shape-rendering",function(a){return b.isStepType(a)?"crispEdges":""}).attr("transform",null),b.mainLine.exit().transition().duration(a).style("opacity",0).remove()},f.redrawLine=function(a,b){return[(b?this.mainLine.transition():this.mainLine).attr("d",a).style("stroke",this.color).style("opacity",1)]},f.generateDrawLine=function(a,b){var c=this,d=c.config,e=c.d3.svg.line(),f=c.generateGetLinePoints(a,b),g=b?c.getSubYScale:c.getYScale,h=function(a){return(b?c.subxx:c.xx).call(c,a)},i=function(a,b){return d.data_groups.length>0?f(a,b)[0][1]:g.call(c,a.id)(a.value)};return e=d.axis_rotated?e.x(i).y(h):e.x(h).y(i),d.line_connectNull||(e=e.defined(function(a){return null!=a.value})),function(a){var f,h=d.line_connectNull?c.filterRemoveNull(a.values):a.values,i=b?c.x:c.subX,j=g.call(c,a.id),k=0,l=0;return c.isLineType(a)?d.data_regions[a.id]?f=c.lineWithRegions(h,i,j,d.data_regions[a.id]):(c.isStepType(a)&&(h=c.convertValuesToStep(h)),f=e.interpolate(c.getInterpolate(a))(h)):(h[0]&&(k=i(h[0].x),l=j(h[0].value)),f=d.axis_rotated?"M "+l+" "+k:"M "+k+" "+l),f?f:"M 0 0"}},f.generateGetLinePoints=function(a,b){var c=this,d=c.config,e=a.__max__+1,f=c.getShapeX(0,e,a,!!b),g=c.getShapeY(!!b),h=c.getShapeOffset(c.isLineType,a,!!b),i=b?c.getSubYScale:c.getYScale;return function(a,b){var e=i.call(c,a.id)(0),j=h(a,b)||e,k=f(a),l=g(a);return d.axis_rotated&&(0<a.value&&e>l||a.value<0&&l>e)&&(l=e),[[k,l-(e-j)],[k,l-(e-j)],[k,l-(e-j)],[k,l-(e-j)]]}},f.lineWithRegions=function(a,b,c,d){function e(a,b){var c;for(c=0;c<b.length;c++)if(b[c].start<a&&a<=b[c].end)return!0;return!1}var f,g,h,i,j,k,l,o,p,q,r,s,t=this,u=t.config,v=-1,w="M",x=[];if(n(d))for(f=0;f<d.length;f++)x[f]={},x[f].start=m(d[f].start)?a[0].x:t.isTimeSeries()?t.parseDate(d[f].start):d[f].start,x[f].end=m(d[f].end)?a[a.length-1].x:t.isTimeSeries()?t.parseDate(d[f].end):d[f].end;for(r=u.axis_rotated?function(a){return c(a.value)}:function(a){return b(a.x)},s=u.axis_rotated?function(a){return b(a.x)}:function(a){return c(a.value)},h=t.isTimeSeries()?function(a,d,e,f){var g=a.x.getTime(),h=d.x-a.x,i=new Date(g+h*e),k=new Date(g+h*(e+f));return"M"+b(i)+" "+c(j(e))+" "+b(k)+" "+c(j(e+f))}:function(a,d,e,f){return"M"+b(i(e),!0)+" "+c(j(e))+" "+b(i(e+f),!0)+" "+c(j(e+f))},f=0;f<a.length;f++){if(m(x)||!e(a[f].x,x))w+=" 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c=this,d=c.config,e=c.d3.svg.area(),f=c.generateGetAreaPoints(a,b),g=b?c.getSubYScale:c.getYScale,h=function(a){return(b?c.subxx:c.xx).call(c,a)},i=function(a,b){return d.data_groups.length>0?f(a,b)[0][1]:g.call(c,a.id)(c.getAreaBaseValue(a.id))},j=function(a,b){return d.data_groups.length>0?f(a,b)[1][1]:g.call(c,a.id)(a.value)};return e=d.axis_rotated?e.x0(i).x1(j).y(h):e.x(h).y0(i).y1(j),d.line_connectNull||(e=e.defined(function(a){return null!==a.value})),function(a){var b,f=d.line_connectNull?c.filterRemoveNull(a.values):a.values,g=0,h=0;return c.isAreaType(a)?(c.isStepType(a)&&(f=c.convertValuesToStep(f)),b=e.interpolate(c.getInterpolate(a))(f)):(f[0]&&(g=c.x(f[0].x),h=c.getYScale(a.id)(f[0].value)),b=d.axis_rotated?"M "+h+" "+g:"M "+g+" "+h),b?b:"M 0 0"}},f.getAreaBaseValue=function(){return 0},f.generateGetAreaPoints=function(a,b){var c=this,d=c.config,e=a.__max__+1,f=c.getShapeX(0,e,a,!!b),g=c.getShapeY(!!b),h=c.getShapeOffset(c.isAreaType,a,!!b),i=b?c.getSubYScale:c.getYScale;return function(a,b){var e=i.call(c,a.id)(0),j=h(a,b)||e,k=f(a),l=g(a);return d.axis_rotated&&(0<a.value&&e>l||a.value<0&&l>e)&&(l=e),[[k,j],[k,l-(e-j)],[k,l-(e-j)],[k,j]]}},f.updateCircle=function(){var a=this;a.mainCircle=a.main.selectAll("."+i.circles).selectAll("."+i.circle).data(a.lineOrScatterData.bind(a)),a.mainCircle.enter().append("circle").attr("class",a.classCircle.bind(a)).attr("r",a.pointR.bind(a)).style("fill",a.color),a.mainCircle.style("opacity",a.initialOpacityForCircle.bind(a)),a.mainCircle.exit().remove()},f.redrawCircle=function(a,b,c){var d=this.main.selectAll("."+i.selectedCircle);return[(c?this.mainCircle.transition():this.mainCircle).style("opacity",this.opacityForCircle.bind(this)).style("fill",this.color).attr("cx",a).attr("cy",b),(c?d.transition():d).attr("cx",a).attr("cy",b)]},f.circleX=function(a){return a.x||0===a.x?this.x(a.x):null},f.updateCircleY=function(){var a,b,c=this;c.config.data_groups.length>0?(a=c.getShapeIndices(c.isLineType),b=c.generateGetLinePoints(a),c.circleY=function(a,c){return b(a,c)[0][1]}):c.circleY=function(a){return c.getYScale(a.id)(a.value)}},f.getCircles=function(a,b){var c=this;return(b?c.main.selectAll("."+i.circles+c.getTargetSelectorSuffix(b)):c.main).selectAll("."+i.circle+(j(a)?"-"+a:""))},f.expandCircles=function(a,b,c){var d=this,e=d.pointExpandedR.bind(d);c&&d.unexpandCircles(),d.getCircles(a,b).classed(i.EXPANDED,!0).attr("r",e)},f.unexpandCircles=function(a){var b=this,c=b.pointR.bind(b);b.getCircles(a).filter(function(){return b.d3.select(this).classed(i.EXPANDED)}).classed(i.EXPANDED,!1).attr("r",c)},f.pointR=function(a){var b=this,c=b.config;return b.isStepType(a)?0:k(c.point_r)?c.point_r(a):c.point_r},f.pointExpandedR=function(a){var b=this,c=b.config;return c.point_focus_expand_enabled?c.point_focus_expand_r?c.point_focus_expand_r:1.75*b.pointR(a):b.pointR(a)},f.pointSelectR=function(a){var b=this,c=b.config;return c.point_select_r?c.point_select_r:4*b.pointR(a)},f.isWithinCircle=function(a,b){var c=this.d3,d=c.mouse(a),e=c.select(a),f=+e.attr("cx"),g=+e.attr("cy");return Math.sqrt(Math.pow(f-d[0],2)+Math.pow(g-d[1],2))<b},f.isWithinStep=function(a,b){return Math.abs(b-this.d3.mouse(a)[1])<30},f.initBar=function(){var a=this;a.main.select("."+i.chart).append("g").attr("class",i.chartBars)},f.updateTargetsForBar=function(a){var b,c,d=this,e=d.config,f=d.classChartBar.bind(d),g=d.classBars.bind(d),h=d.classFocus.bind(d);b=d.main.select("."+i.chartBars).selectAll("."+i.chartBar).data(a).attr("class",function(a){return f(a)+h(a)}),c=b.enter().append("g").attr("class",f).style("opacity",0).style("pointer-events","none"),c.append("g").attr("class",g).style("cursor",function(a){return e.data_selection_isselectable(a)?"pointer":null})},f.updateBar=function(a){var b=this,c=b.barData.bind(b),d=b.classBar.bind(b),e=b.initialOpacity.bind(b),f=function(a){return b.color(a.id)};b.mainBar=b.main.selectAll("."+i.bars).selectAll("."+i.bar).data(c),b.mainBar.enter().append("path").attr("class",d).style("stroke",f).style("fill",f),b.mainBar.style("opacity",e),b.mainBar.exit().transition().duration(a).style("opacity",0).remove()},f.redrawBar=function(a,b){return[(b?this.mainBar.transition():this.mainBar).attr("d",a).style("fill",this.color).style("opacity",1)]},f.getBarW=function(a,b){var c=this,d=c.config,e="number"==typeof d.bar_width?d.bar_width:b?a.tickInterval()*d.bar_width_ratio/b:0;return d.bar_width_max&&e>d.bar_width_max?d.bar_width_max:e},f.getBars=function(a,b){var c=this;return(b?c.main.selectAll("."+i.bars+c.getTargetSelectorSuffix(b)):c.main).selectAll("."+i.bar+(j(a)?"-"+a:""))},f.expandBars=function(a,b,c){var d=this;c&&d.unexpandBars(),d.getBars(a,b).classed(i.EXPANDED,!0)},f.unexpandBars=function(a){var b=this;b.getBars(a).classed(i.EXPANDED,!1)},f.generateDrawBar=function(a,b){var c=this,d=c.config,e=c.generateGetBarPoints(a,b);return function(a,b){var c=e(a,b),f=d.axis_rotated?1:0,g=d.axis_rotated?0:1,h="M "+c[0][f]+","+c[0][g]+" L"+c[1][f]+","+c[1][g]+" L"+c[2][f]+","+c[2][g]+" L"+c[3][f]+","+c[3][g]+" z";return h}},f.generateGetBarPoints=function(a,b){var c=this,d=b?c.subXAxis:c.xAxis,e=a.__max__+1,f=c.getBarW(d,e),g=c.getShapeX(f,e,a,!!b),h=c.getShapeY(!!b),i=c.getShapeOffset(c.isBarType,a,!!b),j=b?c.getSubYScale:c.getYScale;return function(a,b){var d=j.call(c,a.id)(0),e=i(a,b)||d,k=g(a),l=h(a);return c.config.axis_rotated&&(0<a.value&&d>l||a.value<0&&l>d)&&(l=d),[[k,e],[k,l-(d-e)],[k+f,l-(d-e)],[k+f,e]]}},f.isWithinBar=function(a){var b=this.d3.mouse(a),c=a.getBoundingClientRect(),d=a.pathSegList.getItem(0),e=a.pathSegList.getItem(1),f=Math.min(d.x,e.x),g=Math.min(d.y,e.y),h=c.width,i=c.height,j=2,k=f-j,l=f+h+j,m=g+i+j,n=g-j;return k<b[0]&&b[0]<l&&n<b[1]&&b[1]<m},f.initText=function(){var a=this;a.main.select("."+i.chart).append("g").attr("class",i.chartTexts),a.mainText=a.d3.selectAll([])},f.updateTargetsForText=function(a){var b,c,d=this,e=d.classChartText.bind(d),f=d.classTexts.bind(d),g=d.classFocus.bind(d);b=d.main.select("."+i.chartTexts).selectAll("."+i.chartText).data(a).attr("class",function(a){return e(a)+g(a)}),c=b.enter().append("g").attr("class",e).style("opacity",0).style("pointer-events","none"),c.append("g").attr("class",f)},f.updateText=function(a){var b=this,c=b.config,d=b.barOrLineData.bind(b),e=b.classText.bind(b);b.mainText=b.main.selectAll("."+i.texts).selectAll("."+i.text).data(d),b.mainText.enter().append("text").attr("class",e).attr("text-anchor",function(a){return c.axis_rotated?a.value<0?"end":"start":"middle"
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n(x.data_names[a])?x.data_names[a]:a}).each(function(a,b){e(this,a,b)}).style("pointer-events","none").attr("x",w.isLegendRight||w.isLegendInset?g:-200).attr("y",w.isLegendRight||w.isLegendInset?-200:l),o.append("rect").attr("class",i.legendItemEvent).style("fill-opacity",0).attr("x",w.isLegendRight||w.isLegendInset?j:-200).attr("y",w.isLegendRight||w.isLegendInset?-200:m),o.append("rect").attr("class",i.legendItemTile).style("pointer-events","none").style("fill",w.color).attr("x",w.isLegendRight||w.isLegendInset?g:-200).attr("y",w.isLegendRight||w.isLegendInset?-200:k).attr("width",10).attr("height",10),v=w.legend.select("."+i.legendBackground+" rect"),w.isLegendInset&&A>0&&0===v.size()&&(v=w.legend.insert("g","."+i.legendItem).attr("class",i.legendBackground).append("rect")),r=w.legend.selectAll("text").data(a).text(function(a){return 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"+i.axisX).attr("clip-path",a.clipPathForXAxis).attr("transform",a.getTranslate("x")).style("visibility",b.axis_x_show?"visible":"hidden"),a.axes.x.append("text").attr("class",i.axisXLabel).attr("transform",b.axis_rotated?"rotate(-90)":"").style("text-anchor",a.textAnchorForXAxisLabel.bind(a)),a.axes.y=c.append("g").attr("class",i.axis+" "+i.axisY).attr("clip-path",b.axis_y_inner?"":a.clipPathForYAxis).attr("transform",a.getTranslate("y")).style("visibility",b.axis_y_show?"visible":"hidden"),a.axes.y.append("text").attr("class",i.axisYLabel).attr("transform",b.axis_rotated?"":"rotate(-90)").style("text-anchor",a.textAnchorForYAxisLabel.bind(a)),a.axes.y2=c.append("g").attr("class",i.axis+" "+i.axisY2).attr("transform",a.getTranslate("y2")).style("visibility",b.axis_y2_show?"visible":"hidden"),a.axes.y2.append("text").attr("class",i.axisY2Label).attr("transform",b.axis_rotated?"":"rotate(-90)").style("text-anchor",a.textAnchorForY2AxisLabel.bind(a))},f.getXAxis=function(a,b,c,e,f,g){var h=this,i=h.config,j={isCategory:h.isCategorized(),withOuterTick:f,tickMultiline:i.axis_x_tick_multiline,tickWidth:i.axis_x_tick_width,withoutTransition:g},k=d(h.d3,j).scale(a).orient(b);return h.isTimeSeries()&&e&&(e=e.map(function(a){return h.parseDate(a)})),k.tickFormat(c).tickValues(e),h.isCategorized()&&(k.tickCentered(i.axis_x_tick_centered),r(i.axis_x_tick_culling)&&(i.axis_x_tick_culling=!1)),k},f.updateXAxisTickValues=function(a,b){var c,d=this,e=d.config;return(e.axis_x_tick_fit||e.axis_x_tick_count)&&(c=d.generateTickValues(d.mapTargetsToUniqueXs(a),e.axis_x_tick_count,d.isTimeSeries())),b?b.tickValues(c):(d.xAxis.tickValues(c),d.subXAxis.tickValues(c)),c},f.getYAxis=function(a,b,c,e,f){var g={withOuterTick:f},h=d(this.d3,g).scale(a).orient(b).tickFormat(c);return this.isTimeSeriesY()?h.ticks(this.d3.time[this.config.axis_y_tick_time_value],this.config.axis_y_tick_time_interval):h.tickValues(e),h},f.getAxisId=function(a){var b=this.config;return a in b.data_axes?b.data_axes[a]:"y"},f.getXAxisTickFormat=function(){var a=this,b=a.config,c=a.isTimeSeries()?a.defaultAxisTimeFormat:a.isCategorized()?a.categoryName:function(a){return 0>a?a.toFixed(0):a};return b.axis_x_tick_format&&(k(b.axis_x_tick_format)?c=b.axis_x_tick_format:a.isTimeSeries()&&(c=function(c){return c?a.axisTimeFormat(b.axis_x_tick_format)(c):""})),k(c)?function(b){return c.call(a,b)}:c},f.getAxisTickValues=function(a,b){return a?a:b?b.tickValues():void 0},f.getXAxisTickValues=function(){return this.getAxisTickValues(this.config.axis_x_tick_values,this.xAxis)},f.getYAxisTickValues=function(){return this.getAxisTickValues(this.config.axis_y_tick_values,this.yAxis)},f.getY2AxisTickValues=function(){return this.getAxisTickValues(this.config.axis_y2_tick_values,this.y2Axis)},f.getAxisLabelOptionByAxisId=function(a){var b,c=this,d=c.config;return"y"===a?b=d.axis_y_label:"y2"===a?b=d.axis_y2_label:"x"===a&&(b=d.axis_x_label),b},f.getAxisLabelText=function(a){var b=this.getAxisLabelOptionByAxisId(a);return l(b)?b:b?b.text:null},f.setAxisLabelText=function(a,b){var c=this,d=c.config,e=c.getAxisLabelOptionByAxisId(a);l(e)?"y"===a?d.axis_y_label=b:"y2"===a?d.axis_y2_label=b:"x"===a&&(d.axis_x_label=b):e&&(e.text=b)},f.getAxisLabelPosition=function(a,b){var c=this.getAxisLabelOptionByAxisId(a),d=c&&"object"==typeof c&&c.position?c.position:b;return{isInner:d.indexOf("inner")>=0,isOuter:d.indexOf("outer")>=0,isLeft:d.indexOf("left")>=0,isCenter:d.indexOf("center")>=0,isRight:d.indexOf("right")>=0,isTop:d.indexOf("top")>=0,isMiddle:d.indexOf("middle")>=0,isBottom:d.indexOf("bottom")>=0}},f.getXAxisLabelPosition=function(){return this.getAxisLabelPosition("x",this.config.axis_rotated?"inner-top":"inner-right")},f.getYAxisLabelPosition=function(){return this.getAxisLabelPosition("y",this.config.axis_rotated?"inner-right":"inner-top")},f.getY2AxisLabelPosition=function(){return this.getAxisLabelPosition("y2",this.config.axis_rotated?"inner-right":"inner-top")},f.getAxisLabelPositionById=function(a){return"y2"===a?this.getY2AxisLabelPosition():"y"===a?this.getYAxisLabelPosition():this.getXAxisLabelPosition()},f.textForXAxisLabel=function(){return this.getAxisLabelText("x")},f.textForYAxisLabel=function(){return this.getAxisLabelText("y")},f.textForY2AxisLabel=function(){return this.getAxisLabelText("y2")},f.xForAxisLabel=function(a,b){var c=this;return a?b.isLeft?0:b.isCenter?c.width/2:c.width:b.isBottom?-c.height:b.isMiddle?-c.height/2:0},f.dxForAxisLabel=function(a,b){return a?b.isLeft?"0.5em":b.isRight?"-0.5em":"0":b.isTop?"-0.5em":b.isBottom?"0.5em":"0"},f.textAnchorForAxisLabel=function(a,b){return a?b.isLeft?"start":b.isCenter?"middle":"end":b.isBottom?"start":b.isMiddle?"middle":"end"},f.xForXAxisLabel=function(){return this.xForAxisLabel(!this.config.axis_rotated,this.getXAxisLabelPosition())},f.xForYAxisLabel=function(){return this.xForAxisLabel(this.config.axis_rotated,this.getYAxisLabelPosition())},f.xForY2AxisLabel=function(){return this.xForAxisLabel(this.config.axis_rotated,this.getY2AxisLabelPosition())},f.dxForXAxisLabel=function(){return this.dxForAxisLabel(!this.config.axis_rotated,this.getXAxisLabelPosition())},f.dxForYAxisLabel=function(){return this.dxForAxisLabel(this.config.axis_rotated,this.getYAxisLabelPosition())},f.dxForY2AxisLabel=function(){return this.dxForAxisLabel(this.config.axis_rotated,this.getY2AxisLabelPosition())},f.dyForXAxisLabel=function(){var a=this,b=a.config,c=a.getXAxisLabelPosition();return b.axis_rotated?c.isInner?"1.2em":-25-a.getMaxTickWidth("x"):c.isInner?"-0.5em":b.axis_x_height?b.axis_x_height-10:"3em"},f.dyForYAxisLabel=function(){var a=this,b=a.getYAxisLabelPosition();return a.config.axis_rotated?b.isInner?"-0.5em":"3em":b.isInner?"1.2em":-10-(a.config.axis_y_inner?0:a.getMaxTickWidth("y")+10)},f.dyForY2AxisLabel=function(){var a=this,b=a.getY2AxisLabelPosition();return a.config.axis_rotated?b.isInner?"1.2em":"-2.2em":b.isInner?"-0.5em":15+(a.config.axis_y2_inner?0:this.getMaxTickWidth("y2")+15)},f.textAnchorForXAxisLabel=function(){var a=this;return a.textAnchorForAxisLabel(!a.config.axis_rotated,a.getXAxisLabelPosition())},f.textAnchorForYAxisLabel=function(){var a=this;return a.textAnchorForAxisLabel(a.config.axis_rotated,a.getYAxisLabelPosition())},f.textAnchorForY2AxisLabel=function(){var a=this;return a.textAnchorForAxisLabel(a.config.axis_rotated,a.getY2AxisLabelPosition())},f.xForRotatedTickText=function(a){return 8*Math.sin(Math.PI*(a/180))},f.yForRotatedTickText=function(a){return 11.5-2.5*(a/15)*(a>0?1:-1)},f.rotateTickText=function(a,b,c){a.selectAll(".tick text").style("text-anchor",c>0?"start":"end"),b.selectAll(".tick text").attr("y",this.yForRotatedTickText(c)).attr("transform","rotate("+c+")").selectAll("tspan").attr("dx",this.xForRotatedTickText(c))},f.getMaxTickWidth=function(b,c){var d,e,f,g,h,i=this,j=i.config,k=0;return c&&i.currentMaxTickWidths[b]?i.currentMaxTickWidths[b]:(i.svg&&(d=i.filterTargetsToShow(i.data.targets),"y"===b?(e=i.y.copy().domain(i.getYDomain(d,"y")),f=i.getYAxis(e,i.yOrient,j.axis_y_tick_format,i.yAxisTickValues)):"y2"===b?(e=i.y2.copy().domain(i.getYDomain(d,"y2")),f=i.getYAxis(e,i.y2Orient,j.axis_y2_tick_format,i.y2AxisTickValues)):(e=i.x.copy().domain(i.getXDomain(d)),f=i.getXAxis(e,i.xOrient,i.xAxisTickFormat,i.xAxisTickValues),i.updateXAxisTickValues(d,f)),g=this.d3.select("body").classed("c3",!0),h=g.append("svg").style("visibility","hidden").style("height",0),h.append("g").call(f).each(function(){i.d3.select(this).selectAll("text tspan").each(function(){var a=this.getBoundingClientRect();a.left>=0&&k<a.width&&(k=a.width)})}),a.setTimeout(function(){h.remove()},100),g.classed("c3",!1)),i.currentMaxTickWidths[b]=0>=k?i.currentMaxTickWidths[b]:k,i.currentMaxTickWidths[b])},f.updateAxisLabels=function(a){var b=this,c=b.main.select("."+i.axisX+" ."+i.axisXLabel),d=b.main.select("."+i.axisY+" ."+i.axisYLabel),e=b.main.select("."+i.axisY2+" ."+i.axisY2Label);(a?c.transition():c).attr("x",b.xForXAxisLabel.bind(b)).attr("dx",b.dxForXAxisLabel.bind(b)).attr("dy",b.dyForXAxisLabel.bind(b)).text(b.textForXAxisLabel.bind(b)),(a?d.transition():d).attr("x",b.xForYAxisLabel.bind(b)).attr("dx",b.dxForYAxisLabel.bind(b)).attr("dy",b.dyForYAxisLabel.bind(b)).text(b.textForYAxisLabel.bind(b)),(a?e.transition():e).attr("x",b.xForY2AxisLabel.bind(b)).attr("dx",b.dxForY2AxisLabel.bind(b)).attr("dy",b.dyForY2AxisLabel.bind(b)).text(b.textForY2AxisLabel.bind(b))},f.getAxisPadding=function(a,b,c,d){return j(a[b])?"ratio"===a.unit?a[b]*d:this.convertPixelsToAxisPadding(a[b],d):c},f.convertPixelsToAxisPadding=function(a,b){var c=this.config.axis_rotated?this.width:this.height;return b*(a/c)},f.generateTickValues=function(a,b,c){var d,e,f,g,h,i,j,l=a;if(b)if(d=k(b)?b():b,1===d)l=[a[0]];else if(2===d)l=[a[0],a[a.length-1]];else if(d>2){for(g=d-2,e=a[0],f=a[a.length-1],h=(f-e)/(g+1),l=[e],i=0;g>i;i++)j=+e+h*(i+1),l.push(c?new Date(j):j);l.push(f)}return c||(l=l.sort(function(a,b){return a-b})),l},f.generateAxisTransitions=function(a){var b=this,c=b.axes;return{axisX:a?c.x.transition().duration(a):c.x,axisY:a?c.y.transition().duration(a):c.y,axisY2:a?c.y2.transition().duration(a):c.y2,axisSubX:a?c.subx.transition().duration(a):c.subx}},f.redrawAxis=function(a,b){var c=this,d=c.config;c.axes.x.style("opacity",b?0:1),c.axes.y.style("opacity",b?0:1),c.axes.y2.style("opacity",b?0:1),c.axes.subx.style("opacity",b?0:1),a.axisX.call(c.xAxis),a.axisY.call(c.yAxis),a.axisY2.call(c.y2Axis),a.axisSubX.call(c.subXAxis),!d.axis_rotated&&d.axis_x_tick_rotate&&(c.rotateTickText(c.axes.x,a.axisX,d.axis_x_tick_rotate),c.rotateTickText(c.axes.subx,a.axisSubX,d.axis_x_tick_rotate))},f.getClipPath=function(b){var c=a.navigator.appVersion.toLowerCase().indexOf("msie 9.")>=0;return"url("+(c?"":document.URL.split("#")[0])+"#"+b+")"},f.appendClip=function(a,b){return a.append("clipPath").attr("id",b).append("rect")},f.getAxisClipX=function(a){var b=Math.max(30,this.margin.left);return a?-(1+b):-(b-1)},f.getAxisClipY=function(a){return a?-20:-this.margin.top},f.getXAxisClipX=function(){var a=this;return a.getAxisClipX(!a.config.axis_rotated)},f.getXAxisClipY=function(){var a=this;return a.getAxisClipY(!a.config.axis_rotated)},f.getYAxisClipX=function(){var a=this;return a.config.axis_y_inner?-1:a.getAxisClipX(a.config.axis_rotated)},f.getYAxisClipY=function(){var a=this;return a.getAxisClipY(a.config.axis_rotated)},f.getAxisClipWidth=function(a){var b=this,c=Math.max(30,b.margin.left),d=Math.max(30,b.margin.right);return a?b.width+2+c+d:b.margin.left+20},f.getAxisClipHeight=function(a){return(a?this.margin.bottom:this.margin.top+this.height)+20},f.getXAxisClipWidth=function(){var a=this;return a.getAxisClipWidth(!a.config.axis_rotated)},f.getXAxisClipHeight=function(){var a=this;return a.getAxisClipHeight(!a.config.axis_rotated)},f.getYAxisClipWidth=function(){var a=this;return a.getAxisClipWidth(a.config.axis_rotated)+(a.config.axis_y_inner?20:0)},f.getYAxisClipHeight=function(){var a=this;return a.getAxisClipHeight(a.config.axis_rotated)},f.initPie=function(){var a=this,b=a.d3,c=a.config;a.pie=b.layout.pie().value(function(a){return a.values.reduce(function(a,b){return a+b.value},0)}),c.data_order||a.pie.sort(null)},f.updateRadius=function(){var a=this,b=a.config,c=b.gauge_width||b.donut_width;a.radiusExpanded=Math.min(a.arcWidth,a.arcHeight)/2,a.radius=.95*a.radiusExpanded,a.innerRadiusRatio=c?(a.radius-c)/a.radius:.6,a.innerRadius=a.hasType("donut")||a.hasType("gauge")?a.radius*a.innerRadiusRatio:0},f.updateArc=function(){var a=this;a.svgArc=a.getSvgArc(),a.svgArcExpanded=a.getSvgArcExpanded(),a.svgArcExpandedSub=a.getSvgArcExpanded(.98)},f.updateAngle=function(a){var b,c,d=this,e=d.config,f=!1,g=0,h=e.gauge_min,i=e.gauge_max;return d.pie(d.filterTargetsToShow(d.data.targets)).forEach(function(b){f||b.data.id!==a.data.id||(f=!0,a=b,a.index=g),g++}),isNaN(a.startAngle)&&(a.startAngle=0),isNaN(a.endAngle)&&(a.endAngle=a.startAngle),d.isGaugeType(a.data)&&(b=Math.PI/(i-h),c=a.value<h?0:a.value<i?a.value-h:i-h,a.startAngle=-1*(Math.PI/2),a.endAngle=a.startAngle+b*c),f?a:null},f.getSvgArc=function(){var a=this,b=a.d3.svg.arc().outerRadius(a.radius).innerRadius(a.innerRadius),c=function(c,d){var e;return d?b(c):(e=a.updateAngle(c),e?b(e):"M 0 0")};return c.centroid=b.centroid,c},f.getSvgArcExpanded=function(a){var b=this,c=b.d3.svg.arc().outerRadius(b.radiusExpanded*(a?a:1)).innerRadius(b.innerRadius);return function(a){var d=b.updateAngle(a);return d?c(d):"M 0 0"}},f.getArc=function(a,b,c){return c||this.isArcType(a.data)?this.svgArc(a,b):"M 0 0"},f.transformForArcLabel=function(a){var b,c,d,e,f,g=this,h=g.updateAngle(a),i="";return h&&!g.hasType("gauge")&&(b=this.svgArc.centroid(h),c=isNaN(b[0])?0:b[0],d=isNaN(b[1])?0:b[1],e=Math.sqrt(c*c+d*d),f=g.radius&&e?(36/g.radius>.375?1.175-36/g.radius:.8)*g.radius/e:0,i="translate("+c*f+","+d*f+")"),i},f.getArcRatio=function(a){var b=this,c=b.hasType("gauge")?Math.PI:2*Math.PI;return a?(a.endAngle-a.startAngle)/c:null},f.convertToArcData=function(a){return this.addName({id:a.data.id,value:a.value,ratio:this.getArcRatio(a),index:a.index})},f.textForArcLabel=function(a){var b,c,d,e,f,g=this;return g.shouldShowArcLabel()?(b=g.updateAngle(a),c=b?b.value:null,d=g.getArcRatio(b),e=a.data.id,g.hasType("gauge")||g.meetsArcLabelThreshold(d)?(f=g.getArcLabelFormat(),f?f(c,d,e):g.defaultArcValueFormat(c,d)):""):""
 },f.expandArc=function(b){var c,d=this;return d.transiting?void(c=a.setInterval(function(){d.transiting||(a.clearInterval(c),d.legend.selectAll(".c3-legend-item-focused").size()>0&&d.expandArc(b))},10)):(b=d.mapToTargetIds(b),void d.svg.selectAll(d.selectorTargets(b,"."+i.chartArc)).each(function(a){d.shouldExpand(a.data.id)&&d.d3.select(this).selectAll("path").transition().duration(50).attr("d",d.svgArcExpanded).transition().duration(100).attr("d",d.svgArcExpandedSub).each(function(a){d.isDonutType(a.data)})}))},f.unexpandArc=function(a){var b=this;b.transiting||(a=b.mapToTargetIds(a),b.svg.selectAll(b.selectorTargets(a,"."+i.chartArc)).selectAll("path").transition().duration(50).attr("d",b.svgArc),b.svg.selectAll("."+i.arc).style("opacity",1))},f.shouldExpand=function(a){var b=this,c=b.config;return b.isDonutType(a)&&c.donut_expand||b.isGaugeType(a)&&c.gauge_expand||b.isPieType(a)&&c.pie_expand},f.shouldShowArcLabel=function(){var a=this,b=a.config,c=!0;return a.hasType("donut")?c=b.donut_label_show:a.hasType("pie")&&(c=b.pie_label_show),c},f.meetsArcLabelThreshold=function(a){var b=this,c=b.config,d=b.hasType("donut")?c.donut_label_threshold:c.pie_label_threshold;return a>=d},f.getArcLabelFormat=function(){var a=this,b=a.config,c=b.pie_label_format;return a.hasType("gauge")?c=b.gauge_label_format:a.hasType("donut")&&(c=b.donut_label_format),c},f.getArcTitle=function(){var a=this;return a.hasType("donut")?a.config.donut_title:""},f.updateTargetsForArc=function(a){var b,c,d=this,e=d.main,f=d.classChartArc.bind(d),g=d.classArcs.bind(d),h=d.classFocus.bind(d);b=e.select("."+i.chartArcs).selectAll("."+i.chartArc).data(d.pie(a)).attr("class",function(a){return f(a)+h(a.data)}),c=b.enter().append("g").attr("class",f),c.append("g").attr("class",g),c.append("text").attr("dy",d.hasType("gauge")?"-.1em":".35em").style("opacity",0).style("text-anchor","middle").style("pointer-events","none")},f.initArc=function(){var a=this;a.arcs=a.main.select("."+i.chart).append("g").attr("class",i.chartArcs).attr("transform",a.getTranslate("arc")),a.arcs.append("text").attr("class",i.chartArcsTitle).style("text-anchor","middle").text(a.getArcTitle())},f.redrawArc=function(a,b,c){var d,e=this,f=e.d3,g=e.config,h=e.main;d=h.selectAll("."+i.arcs).selectAll("."+i.arc).data(e.arcData.bind(e)),d.enter().append("path").attr("class",e.classArc.bind(e)).style("fill",function(a){return e.color(a.data)}).style("cursor",function(a){return g.interaction_enabled&&g.data_selection_isselectable(a)?"pointer":null}).style("opacity",0).each(function(a){e.isGaugeType(a.data)&&(a.startAngle=a.endAngle=-1*(Math.PI/2)),this._current=a}),d.attr("transform",function(a){return!e.isGaugeType(a.data)&&c?"scale(0)":""}).style("opacity",function(a){return a===this._current?0:1}).on("mouseover",g.interaction_enabled?function(a){var b,c;e.transiting||(b=e.updateAngle(a),c=e.convertToArcData(b),e.expandArc(b.data.id),e.api.focus(b.data.id),e.toggleFocusLegend(b.data.id,!0),e.config.data_onmouseover(c,this))}:null).on("mousemove",g.interaction_enabled?function(a){var b=e.updateAngle(a),c=e.convertToArcData(b),d=[c];e.showTooltip(d,this)}:null).on("mouseout",g.interaction_enabled?function(a){var b,c;e.transiting||(b=e.updateAngle(a),c=e.convertToArcData(b),e.unexpandArc(b.data.id),e.api.revert(),e.revertLegend(),e.hideTooltip(),e.config.data_onmouseout(c,this))}:null).on("click",g.interaction_enabled?function(a,b){var c=e.updateAngle(a),d=e.convertToArcData(c);e.toggleShape&&e.toggleShape(this,d,b),e.config.data_onclick.call(e.api,d,this)}:null).each(function(){e.transiting=!0}).transition().duration(a).attrTween("d",function(a){var b,c=e.updateAngle(a);return c?(isNaN(this._current.startAngle)&&(this._current.startAngle=0),isNaN(this._current.endAngle)&&(this._current.endAngle=this._current.startAngle),b=f.interpolate(this._current,c),this._current=b(0),function(c){var d=b(c);return d.data=a.data,e.getArc(d,!0)}):function(){return"M 0 0"}}).attr("transform",c?"scale(1)":"").style("fill",function(a){return e.levelColor?e.levelColor(a.data.values[0].value):e.color(a.data.id)}).style("opacity",1).call(e.endall,function(){e.transiting=!1}),d.exit().transition().duration(b).style("opacity",0).remove(),h.selectAll("."+i.chartArc).select("text").style("opacity",0).attr("class",function(a){return e.isGaugeType(a.data)?i.gaugeValue:""}).text(e.textForArcLabel.bind(e)).attr("transform",e.transformForArcLabel.bind(e)).style("font-size",function(a){return e.isGaugeType(a.data)?Math.round(e.radius/5)+"px":""}).transition().duration(a).style("opacity",function(a){return e.isTargetToShow(a.data.id)&&e.isArcType(a.data)?1:0}),h.select("."+i.chartArcsTitle).style("opacity",e.hasType("donut")||e.hasType("gauge")?1:0),e.hasType("gauge")&&(e.arcs.select("."+i.chartArcsBackground).attr("d",function(){var a={data:[{value:g.gauge_max}],startAngle:-1*(Math.PI/2),endAngle:Math.PI/2};return e.getArc(a,!0,!0)}),e.arcs.select("."+i.chartArcsGaugeUnit).attr("dy",".75em").text(g.gauge_label_show?g.gauge_units:""),e.arcs.select("."+i.chartArcsGaugeMin).attr("dx",-1*(e.innerRadius+(e.radius-e.innerRadius)/2)+"px").attr("dy","1.2em").text(g.gauge_label_show?g.gauge_min:""),e.arcs.select("."+i.chartArcsGaugeMax).attr("dx",e.innerRadius+(e.radius-e.innerRadius)/2+"px").attr("dy","1.2em").text(g.gauge_label_show?g.gauge_max:""))},f.initGauge=function(){var a=this.arcs;this.hasType("gauge")&&(a.append("path").attr("class",i.chartArcsBackground),a.append("text").attr("class",i.chartArcsGaugeUnit).style("text-anchor","middle").style("pointer-events","none"),a.append("text").attr("class",i.chartArcsGaugeMin).style("text-anchor","middle").style("pointer-events","none"),a.append("text").attr("class",i.chartArcsGaugeMax).style("text-anchor","middle").style("pointer-events","none"))},f.getGaugeLabelHeight=function(){return this.config.gauge_label_show?20:0},f.initRegion=function(){var a=this;a.region=a.main.append("g").attr("clip-path",a.clipPath).attr("class",i.regions)},f.updateRegion=function(a){var b=this,c=b.config;b.region.style("visibility",b.hasArcType()?"hidden":"visible"),b.mainRegion=b.main.select("."+i.regions).selectAll("."+i.region).data(c.regions),b.mainRegion.enter().append("g").attr("class",b.classRegion.bind(b)).append("rect").style("fill-opacity",0),b.mainRegion.exit().transition().duration(a).style("opacity",0).remove()},f.redrawRegion=function(a){var b=this,c=b.mainRegion.selectAll("rect"),d=b.regionX.bind(b),e=b.regionY.bind(b),f=b.regionWidth.bind(b),g=b.regionHeight.bind(b);return[(a?c.transition():c).attr("x",d).attr("y",e).attr("width",f).attr("height",g).style("fill-opacity",function(a){return j(a.opacity)?a.opacity:.1})]},f.regionX=function(a){var b,c=this,d=c.config,e="y"===a.axis?c.y:c.y2;return b="y"===a.axis||"y2"===a.axis?d.axis_rotated&&"start"in a?e(a.start):0:d.axis_rotated?0:"start"in a?c.x(c.isTimeSeries()?c.parseDate(a.start):a.start):0},f.regionY=function(a){var b,c=this,d=c.config,e="y"===a.axis?c.y:c.y2;return b="y"===a.axis||"y2"===a.axis?d.axis_rotated?0:"end"in a?e(a.end):0:d.axis_rotated&&"start"in a?c.x(c.isTimeSeries()?c.parseDate(a.start):a.start):0},f.regionWidth=function(a){var b,c=this,d=c.config,e=c.regionX(a),f="y"===a.axis?c.y:c.y2;return b="y"===a.axis||"y2"===a.axis?d.axis_rotated&&"end"in a?f(a.end):c.width:d.axis_rotated?c.width:"end"in a?c.x(c.isTimeSeries()?c.parseDate(a.end):a.end):c.width,e>b?0:b-e},f.regionHeight=function(a){var b,c=this,d=c.config,e=this.regionY(a),f="y"===a.axis?c.y:c.y2;return b="y"===a.axis||"y2"===a.axis?d.axis_rotated?c.height:"start"in a?f(a.start):c.height:d.axis_rotated&&"end"in a?c.x(c.isTimeSeries()?c.parseDate(a.end):a.end):c.height,e>b?0:b-e},f.isRegionOnX=function(a){return!a.axis||"x"===a.axis},f.drag=function(a){var b,c,d,e,f,g,h,j,k=this,l=k.config,m=k.main,n=k.d3;k.hasArcType()||l.data_selection_enabled&&(!l.zoom_enabled||k.zoom.altDomain)&&l.data_selection_multiple&&(b=k.dragStart[0],c=k.dragStart[1],d=a[0],e=a[1],f=Math.min(b,d),g=Math.max(b,d),h=l.data_selection_grouped?k.margin.top:Math.min(c,e),j=l.data_selection_grouped?k.height:Math.max(c,e),m.select("."+i.dragarea).attr("x",f).attr("y",h).attr("width",g-f).attr("height",j-h),m.selectAll("."+i.shapes).selectAll("."+i.shape).filter(function(a){return l.data_selection_isselectable(a)}).each(function(a,b){var c,d,e,l,m,o,p=n.select(this),q=p.classed(i.SELECTED),r=p.classed(i.INCLUDED),s=!1;if(p.classed(i.circle))c=1*p.attr("cx"),d=1*p.attr("cy"),m=k.togglePoint,s=c>f&&g>c&&d>h&&j>d;else{if(!p.classed(i.bar))return;o=v(this),c=o.x,d=o.y,e=o.width,l=o.height,m=k.togglePath,s=!(c>g||f>c+e||d>j||h>d+l)}s^r&&(p.classed(i.INCLUDED,!r),p.classed(i.SELECTED,!q),m.call(k,!q,p,a,b))}))},f.dragstart=function(a){var b=this,c=b.config;b.hasArcType()||c.data_selection_enabled&&(b.dragStart=a,b.main.select("."+i.chart).append("rect").attr("class",i.dragarea).style("opacity",.1),b.dragging=!0)},f.dragend=function(){var a=this,b=a.config;a.hasArcType()||b.data_selection_enabled&&(a.main.select("."+i.dragarea).transition().duration(100).style("opacity",0).remove(),a.main.selectAll("."+i.shape).classed(i.INCLUDED,!1),a.dragging=!1)},f.selectPoint=function(a,b,c){var d=this,e=d.config,f=(e.axis_rotated?d.circleY:d.circleX).bind(d),g=(e.axis_rotated?d.circleX:d.circleY).bind(d),h=d.pointSelectR.bind(d);e.data_onselected.call(d.api,b,a.node()),d.main.select("."+i.selectedCircles+d.getTargetSelectorSuffix(b.id)).selectAll("."+i.selectedCircle+"-"+c).data([b]).enter().append("circle").attr("class",function(){return d.generateClass(i.selectedCircle,c)}).attr("cx",f).attr("cy",g).attr("stroke",function(){return d.color(b)}).attr("r",function(a){return 1.4*d.pointSelectR(a)}).transition().duration(100).attr("r",h)},f.unselectPoint=function(a,b,c){var d=this;d.config.data_onunselected(b,a.node()),d.main.select("."+i.selectedCircles+d.getTargetSelectorSuffix(b.id)).selectAll("."+i.selectedCircle+"-"+c).transition().duration(100).attr("r",0).remove()},f.togglePoint=function(a,b,c,d){a?this.selectPoint(b,c,d):this.unselectPoint(b,c,d)},f.selectPath=function(a,b){var c=this;c.config.data_onselected.call(c,b,a.node()),a.transition().duration(100).style("fill",function(){return c.d3.rgb(c.color(b)).brighter(.75)})},f.unselectPath=function(a,b){var c=this;c.config.data_onunselected.call(c,b,a.node()),a.transition().duration(100).style("fill",function(){return c.color(b)})},f.togglePath=function(a,b,c,d){a?this.selectPath(b,c,d):this.unselectPath(b,c,d)},f.getToggle=function(a,b){var c,d=this;return"circle"===a.nodeName?c=d.isStepType(b)?function(){}:d.togglePoint:"path"===a.nodeName&&(c=d.togglePath),c},f.toggleShape=function(a,b,c){var d=this,e=d.d3,f=d.config,g=e.select(a),h=g.classed(i.SELECTED),j=d.getToggle(a,b).bind(d);f.data_selection_enabled&&f.data_selection_isselectable(b)&&(f.data_selection_multiple||d.main.selectAll("."+i.shapes+(f.data_selection_grouped?d.getTargetSelectorSuffix(b.id):"")).selectAll("."+i.shape).each(function(a,b){var c=e.select(this);c.classed(i.SELECTED)&&j(!1,c.classed(i.SELECTED,!1),a,b)}),g.classed(i.SELECTED,!h),j(!h,g,b,c))},f.initBrush=function(){var a=this,b=a.d3;a.brush=b.svg.brush().on("brush",function(){a.redrawForBrush()}),a.brush.update=function(){return a.context&&a.context.select("."+i.brush).call(this),this},a.brush.scale=function(b){return a.config.axis_rotated?this.y(b):this.x(b)}},f.initSubchart=function(){var a=this,b=a.config,c=a.context=a.svg.append("g").attr("transform",a.getTranslate("context"));c.style("visibility",b.subchart_show?"visible":"hidden"),c.append("g").attr("clip-path",a.clipPathForSubchart).attr("class",i.chart),c.select("."+i.chart).append("g").attr("class",i.chartBars),c.select("."+i.chart).append("g").attr("class",i.chartLines),c.append("g").attr("clip-path",a.clipPath).attr("class",i.brush).call(a.brush),a.axes.subx=c.append("g").attr("class",i.axisX).attr("transform",a.getTranslate("subx")).attr("clip-path",b.axis_rotated?"":a.clipPathForXAxis)},f.updateTargetsForSubchart=function(a){var b,c,d,e,f=this,g=f.context,h=f.config,j=f.classChartBar.bind(f),k=f.classBars.bind(f),l=f.classChartLine.bind(f),m=f.classLines.bind(f),n=f.classAreas.bind(f);h.subchart_show&&(e=g.select("."+i.chartBars).selectAll("."+i.chartBar).data(a).attr("class",j),d=e.enter().append("g").style("opacity",0).attr("class",j),d.append("g").attr("class",k),c=g.select("."+i.chartLines).selectAll("."+i.chartLine).data(a).attr("class",l),b=c.enter().append("g").style("opacity",0).attr("class",l),b.append("g").attr("class",m),b.append("g").attr("class",n),g.selectAll("."+i.brush+" rect").attr(h.axis_rotated?"width":"height",h.axis_rotated?f.width2:f.height2))},f.updateBarForSubchart=function(a){var b=this;b.contextBar=b.context.selectAll("."+i.bars).selectAll("."+i.bar).data(b.barData.bind(b)),b.contextBar.enter().append("path").attr("class",b.classBar.bind(b)).style("stroke","none").style("fill",b.color),b.contextBar.style("opacity",b.initialOpacity.bind(b)),b.contextBar.exit().transition().duration(a).style("opacity",0).remove()},f.redrawBarForSubchart=function(a,b,c){(b?this.contextBar.transition().duration(c):this.contextBar).attr("d",a).style("opacity",1)},f.updateLineForSubchart=function(a){var b=this;b.contextLine=b.context.selectAll("."+i.lines).selectAll("."+i.line).data(b.lineData.bind(b)),b.contextLine.enter().append("path").attr("class",b.classLine.bind(b)).style("stroke",b.color),b.contextLine.style("opacity",b.initialOpacity.bind(b)),b.contextLine.exit().transition().duration(a).style("opacity",0).remove()},f.redrawLineForSubchart=function(a,b,c){(b?this.contextLine.transition().duration(c):this.contextLine).attr("d",a).style("opacity",1)},f.updateAreaForSubchart=function(a){var b=this,c=b.d3;b.contextArea=b.context.selectAll("."+i.areas).selectAll("."+i.area).data(b.lineData.bind(b)),b.contextArea.enter().append("path").attr("class",b.classArea.bind(b)).style("fill",b.color).style("opacity",function(){return b.orgAreaOpacity=+c.select(this).style("opacity"),0}),b.contextArea.style("opacity",0),b.contextArea.exit().transition().duration(a).style("opacity",0).remove()},f.redrawAreaForSubchart=function(a,b,c){(b?this.contextArea.transition().duration(c):this.contextArea).attr("d",a).style("fill",this.color).style("opacity",this.orgAreaOpacity)},f.redrawSubchart=function(a,b,c,d,e,f,g){var h,i,j,k=this,l=k.d3,m=k.config;k.context.style("visibility",m.subchart_show?"visible":"hidden"),m.subchart_show&&(l.event&&"zoom"===l.event.type&&k.brush.extent(k.x.orgDomain()).update(),a&&(k.brush.empty()||k.brush.extent(k.x.orgDomain()).update(),h=k.generateDrawArea(e,!0),i=k.generateDrawBar(f,!0),j=k.generateDrawLine(g,!0),k.updateBarForSubchart(c),k.updateLineForSubchart(c),k.updateAreaForSubchart(c),k.redrawBarForSubchart(i,c,c),k.redrawLineForSubchart(j,c,c),k.redrawAreaForSubchart(h,c,c)))},f.redrawForBrush=function(){var a=this,b=a.x;a.redraw({withTransition:!1,withY:a.config.zoom_rescale,withSubchart:!1,withUpdateXDomain:!0,withDimension:!1}),a.config.subchart_onbrush.call(a.api,b.orgDomain())},f.transformContext=function(a,b){var c,d=this;b&&b.axisSubX?c=b.axisSubX:(c=d.context.select("."+i.axisX),a&&(c=c.transition())),d.context.attr("transform",d.getTranslate("context")),c.attr("transform",d.getTranslate("subx"))},f.getDefaultExtent=function(){var a=this,b=a.config,c=k(b.axis_x_extent)?b.axis_x_extent(a.getXDomain(a.data.targets)):b.axis_x_extent;return a.isTimeSeries()&&(c=[a.parseDate(c[0]),a.parseDate(c[1])]),c},f.initZoom=function(){var a,b=this,c=b.d3,d=b.config;b.zoom=c.behavior.zoom().on("zoomstart",function(){a=c.event.sourceEvent,b.zoom.altDomain=c.event.sourceEvent.altKey?b.x.orgDomain():null,d.zoom_onzoomstart.call(b.api,c.event.sourceEvent)}).on("zoom",function(){b.redrawForZoom.call(b)}).on("zoomend",function(){var e=c.event.sourceEvent;e&&a.clientX===e.clientX&&a.clientY===e.clientY||(b.redrawEventRect(),b.updateZoom(),d.zoom_onzoomend.call(b.api,b.x.orgDomain()))}),b.zoom.scale=function(a){return d.axis_rotated?this.y(a):this.x(a)},b.zoom.orgScaleExtent=function(){var a=d.zoom_extent?d.zoom_extent:[1,10];return[a[0],Math.max(b.getMaxDataCount()/a[1],a[1])]},b.zoom.updateScaleExtent=function(){var a=q(b.x.orgDomain())/q(b.orgXDomain),c=this.orgScaleExtent();return this.scaleExtent([c[0]*a,c[1]*a]),this}},f.updateZoom=function(){var a=this,b=a.config.zoom_enabled?a.zoom:function(){};a.main.select("."+i.zoomRect).call(b).on("dblclick.zoom",null),a.main.selectAll("."+i.eventRect).call(b).on("dblclick.zoom",null)},f.redrawForZoom=function(){var a=this,b=a.d3,c=a.config,d=a.zoom,e=a.x;if(c.zoom_enabled&&0!==a.filterTargetsToShow(a.data.targets).length){if("mousemove"===b.event.sourceEvent.type&&d.altDomain)return e.domain(d.altDomain),void d.scale(e).updateScaleExtent();a.isCategorized()&&e.orgDomain()[0]===a.orgXDomain[0]&&e.domain([a.orgXDomain[0]-1e-10,e.orgDomain()[1]]),a.redraw({withTransition:!1,withY:c.zoom_rescale,withSubchart:!1,withEventRect:!1,withDimension:!1}),"mousemove"===b.event.sourceEvent.type&&(a.cancelClick=!0),c.zoom_onzoom.call(a.api,e.orgDomain())}},f.generateColor=function(){var a=this,b=a.config,c=a.d3,d=b.data_colors,e=s(b.color_pattern)?b.color_pattern:c.scale.category10().range(),f=b.data_color,g=[];return function(a){var b,c=a.id||a.data&&a.data.id||a;return d[c]instanceof Function?b=d[c](a):d[c]?b=d[c]:(g.indexOf(c)<0&&g.push(c),b=e[g.indexOf(c)%e.length],d[c]=b),f instanceof Function?f(b,a):b}},f.generateLevelColor=function(){var a=this,b=a.config,c=b.color_pattern,d=b.color_threshold,e="value"===d.unit,f=d.values&&d.values.length?d.values:[],g=d.max||100;return s(b.color_threshold)?function(a){var b,d,h=c[c.length-1];for(b=0;b<f.length;b++)if(d=e?a:100*a/g,d<f[b]){h=c[b];break}return h}:null},f.getYFormat=function(a){var b=this,c=a&&!b.hasType("gauge")?b.defaultArcValueFormat:b.yFormat,d=a&&!b.hasType("gauge")?b.defaultArcValueFormat:b.y2Format;return function(a,e,f){var g="y2"===b.getAxisId(f)?d:c;return g.call(b,a,e)}},f.yFormat=function(a){var b=this,c=b.config,d=c.axis_y_tick_format?c.axis_y_tick_format:b.defaultValueFormat;return d(a)},f.y2Format=function(a){var b=this,c=b.config,d=c.axis_y2_tick_format?c.axis_y2_tick_format:b.defaultValueFormat;return d(a)},f.defaultValueFormat=function(a){return j(a)?+a:""},f.defaultArcValueFormat=function(a,b){return(100*b).toFixed(1)+"%"},f.dataLabelFormat=function(a){var b,c=this,d=c.config.data_labels,e=function(a){return j(a)?+a:""};return b="function"==typeof d.format?d.format:"object"==typeof d.format?d.format[a]?d.format[a]===!0?e:d.format[a]:function(){return""}:e},f.hasCaches=function(a){for(var b=0;b<a.length;b++)if(!(a[b]in this.cache))return!1;return!0},f.addCache=function(a,b){this.cache[a]=this.cloneTarget(b)},f.getCaches=function(a){var b,c=[];for(b=0;b<a.length;b++)a[b]in this.cache&&c.push(this.cloneTarget(this.cache[a[b]]));return c};var i=f.CLASS={target:"c3-target",chart:"c3-chart",chartLine:"c3-chart-line",chartLines:"c3-chart-lines",chartBar:"c3-chart-bar",chartBars:"c3-chart-bars",chartText:"c3-chart-text",chartTexts:"c3-chart-texts",chartArc:"c3-chart-arc",chartArcs:"c3-chart-arcs",chartArcsTitle:"c3-chart-arcs-title",chartArcsBackground:"c3-chart-arcs-background",chartArcsGaugeUnit:"c3-chart-arcs-gauge-unit",chartArcsGaugeMax:"c3-chart-arcs-gauge-max",chartArcsGaugeMin:"c3-chart-arcs-gauge-min",selectedCircle:"c3-selected-circle",selectedCircles:"c3-selected-circles",eventRect:"c3-event-rect",eventRects:"c3-event-rects",eventRectsSingle:"c3-event-rects-single",eventRectsMultiple:"c3-event-rects-multiple",zoomRect:"c3-zoom-rect",brush:"c3-brush",focused:"c3-focused",defocused:"c3-defocused",region:"c3-region",regions:"c3-regions",tooltipContainer:"c3-tooltip-container",tooltip:"c3-tooltip",tooltipName:"c3-tooltip-name",shape:"c3-shape",shapes:"c3-shapes",line:"c3-line",lines:"c3-lines",bar:"c3-bar",bars:"c3-bars",circle:"c3-circle",circles:"c3-circles",arc:"c3-arc",arcs:"c3-arcs",area:"c3-area",areas:"c3-areas",empty:"c3-empty",text:"c3-text",texts:"c3-texts",gaugeValue:"c3-gauge-value",grid:"c3-grid",gridLines:"c3-grid-lines",xgrid:"c3-xgrid",xgrids:"c3-xgrids",xgridLine:"c3-xgrid-line",xgridLines:"c3-xgrid-lines",xgridFocus:"c3-xgrid-focus",ygrid:"c3-ygrid",ygrids:"c3-ygrids",ygridLine:"c3-ygrid-line",ygridLines:"c3-ygrid-lines",axis:"c3-axis",axisX:"c3-axis-x",axisXLabel:"c3-axis-x-label",axisY:"c3-axis-y",axisYLabel:"c3-axis-y-label",axisY2:"c3-axis-y2",axisY2Label:"c3-axis-y2-label",legendBackground:"c3-legend-background",legendItem:"c3-legend-item",legendItemEvent:"c3-legend-item-event",legendItemTile:"c3-legend-item-tile",legendItemHidden:"c3-legend-item-hidden",legendItemFocused:"c3-legend-item-focused",dragarea:"c3-dragarea",EXPANDED:"_expanded_",SELECTED:"_selected_",INCLUDED:"_included_"};f.generateClass=function(a,b){return" "+a+" "+a+this.getTargetSelectorSuffix(b)},f.classText=function(a){return this.generateClass(i.text,a.index)},f.classTexts=function(a){return this.generateClass(i.texts,a.id)},f.classShape=function(a){return this.generateClass(i.shape,a.index)},f.classShapes=function(a){return this.generateClass(i.shapes,a.id)},f.classLine=function(a){return this.classShape(a)+this.generateClass(i.line,a.id)},f.classLines=function(a){return this.classShapes(a)+this.generateClass(i.lines,a.id)},f.classCircle=function(a){return this.classShape(a)+this.generateClass(i.circle,a.index)},f.classCircles=function(a){return this.classShapes(a)+this.generateClass(i.circles,a.id)},f.classBar=function(a){return this.classShape(a)+this.generateClass(i.bar,a.index)},f.classBars=function(a){return this.classShapes(a)+this.generateClass(i.bars,a.id)},f.classArc=function(a){return this.classShape(a.data)+this.generateClass(i.arc,a.data.id)},f.classArcs=function(a){return this.classShapes(a.data)+this.generateClass(i.arcs,a.data.id)},f.classArea=function(a){return this.classShape(a)+this.generateClass(i.area,a.id)},f.classAreas=function(a){return this.classShapes(a)+this.generateClass(i.areas,a.id)},f.classRegion=function(a,b){return this.generateClass(i.region,b)+" "+("class"in a?a["class"]:"")},f.classEvent=function(a){return this.generateClass(i.eventRect,a.index)},f.classTarget=function(a){var b=this,c=b.config.data_classes[a],d="";return c&&(d=" "+i.target+"-"+c),b.generateClass(i.target,a)+d},f.classFocus=function(a){return this.classFocused(a)+this.classDefocused(a)},f.classFocused=function(a){return" "+(this.focusedTargetIds.indexOf(a.id)>=0?i.focused:"")},f.classDefocused=function(a){return" "+(this.defocusedTargetIds.indexOf(a.id)>=0?i.defocused:"")},f.classChartText=function(a){return i.chartText+this.classTarget(a.id)},f.classChartLine=function(a){return i.chartLine+this.classTarget(a.id)},f.classChartBar=function(a){return i.chartBar+this.classTarget(a.id)},f.classChartArc=function(a){return i.chartArc+this.classTarget(a.data.id)},f.getTargetSelectorSuffix=function(a){return a||0===a?("-"+a).replace(/[\s?!@#$%^&*()_=+,.<>'":;\[\]\/|~`{}\\]/g,"-"):""},f.selectorTarget=function(a,b){return(b||"")+"."+i.target+this.getTargetSelectorSuffix(a)},f.selectorTargets=function(a,b){var c=this;return a=a||[],a.length?a.map(function(a){return c.selectorTarget(a,b)}):null},f.selectorLegend=function(a){return"."+i.legendItem+this.getTargetSelectorSuffix(a)},f.selectorLegends=function(a){var b=this;return a&&a.length?a.map(function(a){return b.selectorLegend(a)}):null};var j=f.isValue=function(a){return a||0===a},k=f.isFunction=function(a){return"function"==typeof a},l=f.isString=function(a){return"string"==typeof a},m=f.isUndefined=function(a){return"undefined"==typeof a},n=f.isDefined=function(a){return"undefined"!=typeof a},o=f.ceil10=function(a){return 10*Math.ceil(a/10)},p=f.asHalfPixel=function(a){return Math.ceil(a)+.5},q=f.diffDomain=function(a){return a[1]-a[0]},r=f.isEmpty=function(a){return!a||l(a)&&0===a.length||"object"==typeof a&&0===Object.keys(a).length},s=f.notEmpty=function(a){return Object.keys(a).length>0},t=f.getOption=function(a,b,c){return n(a[b])?a[b]:c},u=f.hasValue=function(a,b){var c=!1;return Object.keys(a).forEach(function(d){a[d]===b&&(c=!0)}),c},v=f.getPathBox=function(a){var b=a.getBoundingClientRect(),c=[a.pathSegList.getItem(0),a.pathSegList.getItem(1)],d=c[0].x,e=Math.min(c[0].y,c[1].y);return{x:d,y:e,width:b.width,height:b.height}};e.focus=function(a){var b,c=this.internal;a=c.mapToTargetIds(a),b=c.svg.selectAll(c.selectorTargets(a.filter(c.isTargetToShow,c))),this.revert(),this.defocus(),b.classed(i.focused,!0).classed(i.defocused,!1),c.hasArcType()&&c.expandArc(a),c.toggleFocusLegend(a,!0),c.focusedTargetIds=a,c.defocusedTargetIds=c.defocusedTargetIds.filter(function(b){return a.indexOf(b)<0})},e.defocus=function(a){var b,c=this.internal;a=c.mapToTargetIds(a),b=c.svg.selectAll(c.selectorTargets(a.filter(c.isTargetToShow,c))),b.classed(i.focused,!1).classed(i.defocused,!0),c.hasArcType()&&c.unexpandArc(a),c.toggleFocusLegend(a,!1),c.focusedTargetIds=c.focusedTargetIds.filter(function(b){return a.indexOf(b)<0}),c.defocusedTargetIds=a},e.revert=function(a){var b,c=this.internal;a=c.mapToTargetIds(a),b=c.svg.selectAll(c.selectorTargets(a)),b.classed(i.focused,!1).classed(i.defocused,!1),c.hasArcType()&&c.unexpandArc(a),c.config.legend_show&&(c.showLegend(a.filter(c.isLegendToShow.bind(c))),c.legend.selectAll(c.selectorLegends(a)).filter(function(){return c.d3.select(this).classed(i.legendItemFocused)}).classed(i.legendItemFocused,!1)),c.focusedTargetIds=[],c.defocusedTargetIds=[]},e.show=function(a,b){var c,d=this.internal;a=d.mapToTargetIds(a),b=b||{},d.removeHiddenTargetIds(a),c=d.svg.selectAll(d.selectorTargets(a)),c.transition().style("opacity",1,"important").call(d.endall,function(){c.style("opacity",null).style("opacity",1)}),b.withLegend&&d.showLegend(a),d.redraw({withUpdateOrgXDomain:!0,withUpdateXDomain:!0,withLegend:!0})},e.hide=function(a,b){var c,d=this.internal;a=d.mapToTargetIds(a),b=b||{},d.addHiddenTargetIds(a),c=d.svg.selectAll(d.selectorTargets(a)),c.transition().style("opacity",0,"important").call(d.endall,function(){c.style("opacity",null).style("opacity",0)}),b.withLegend&&d.hideLegend(a),d.redraw({withUpdateOrgXDomain:!0,withUpdateXDomain:!0,withLegend:!0})},e.toggle=function(a,b){var c=this,d=this.internal;d.mapToTargetIds(a).forEach(function(a){d.isTargetToShow(a)?c.hide(a,b):c.show(a,b)})},e.zoom=function(a){var b=this.internal;return a&&(b.isTimeSeries()&&(a=a.map(function(a){return b.parseDate(a)})),b.brush.extent(a),b.redraw({withUpdateXDomain:!0,withY:b.config.zoom_rescale}),b.config.zoom_onzoom.call(this,b.x.orgDomain())),b.brush.extent()},e.zoom.enable=function(a){var b=this.internal;b.config.zoom_enabled=a,b.updateAndRedraw()},e.unzoom=function(){var a=this.internal;a.brush.clear().update(),a.redraw({withUpdateXDomain:!0})},e.load=function(a){var b=this.internal,c=b.config;return a.xs&&b.addXs(a.xs),"classes"in a&&Object.keys(a.classes).forEach(function(b){c.data_classes[b]=a.classes[b]}),"categories"in a&&b.isCategorized()&&(c.axis_x_categories=a.categories),"axes"in a&&Object.keys(a.axes).forEach(function(b){c.data_axes[b]=a.axes[b]}),"cacheIds"in a&&b.hasCaches(a.cacheIds)?void b.load(b.getCaches(a.cacheIds),a.done):void("unload"in a?b.unload(b.mapToTargetIds("boolean"==typeof a.unload&&a.unload?null:a.unload),function(){b.loadFromArgs(a)}):b.loadFromArgs(a))},e.unload=function(a){var b=this.internal;a=a||{},a instanceof Array?a={ids:a}:"string"==typeof a&&(a={ids:[a]}),b.unload(b.mapToTargetIds(a.ids),function(){b.redraw({withUpdateOrgXDomain:!0,withUpdateXDomain:!0,withLegend:!0}),a.done&&a.done()})},e.flow=function(a){var b,c,d,e,f,g,h,i,k=this.internal,l=[],m=k.getMaxDataCount(),o=0,p=0;if(a.json)c=k.convertJsonToData(a.json,a.keys);else if(a.rows)c=k.convertRowsToData(a.rows);else{if(!a.columns)return;c=k.convertColumnsToData(a.columns)}b=k.convertDataToTargets(c,!0),k.data.targets.forEach(function(a){var c,d,e=!1;for(c=0;c<b.length;c++)if(a.id===b[c].id){for(e=!0,a.values[a.values.length-1]&&(p=a.values[a.values.length-1].index+1),o=b[c].values.length,d=0;o>d;d++)b[c].values[d].index=p+d,k.isTimeSeries()||(b[c].values[d].x=p+d);a.values=a.values.concat(b[c].values),b.splice(c,1);break}e||l.push(a.id)}),k.data.targets.forEach(function(a){var b,c;for(b=0;b<l.length;b++)if(a.id===l[b])for(p=a.values[a.values.length-1].index+1,c=0;o>c;c++)a.values.push({id:a.id,index:p+c,x:k.isTimeSeries()?k.getOtherTargetX(p+c):p+c,value:null})}),k.data.targets.length&&b.forEach(function(a){var b,c=[];for(b=k.data.targets[0].values[0].index;p>b;b++)c.push({id:a.id,index:b,x:k.isTimeSeries()?k.getOtherTargetX(b):b,value:null});a.values.forEach(function(a){a.index+=p,k.isTimeSeries()||(a.x+=p)}),a.values=c.concat(a.values)}),k.data.targets=k.data.targets.concat(b),d=k.getMaxDataCount(),f=k.data.targets[0],g=f.values[0],n(a.to)?(o=0,i=k.isTimeSeries()?k.parseDate(a.to):a.to,f.values.forEach(function(a){a.x<i&&o++})):n(a.length)&&(o=a.length),m?1===m&&k.isTimeSeries()&&(h=(f.values[f.values.length-1].x-g.x)/2,e=[new Date(+g.x-h),new Date(+g.x+h)],k.updateXDomain(null,!0,!0,!1,e)):(h=k.isTimeSeries()?f.values.length>1?f.values[f.values.length-1].x-g.x:g.x-k.getXDomain(k.data.targets)[0]:1,e=[g.x-h,g.x],k.updateXDomain(null,!0,!0,!1,e)),k.updateTargets(k.data.targets),k.redraw({flow:{index:g.index,length:o,duration:j(a.duration)?a.duration:k.config.transition_duration,done:a.done,orgDataCount:m},withLegend:!0,withTransition:m>1,withTrimXDomain:!1,withUpdateXAxis:!0})},f.generateFlow=function(a){var b=this,c=b.config,d=b.d3;return function(){var e,f,g,h=a.targets,j=a.flow,k=a.drawBar,l=a.drawLine,m=a.drawArea,n=a.cx,o=a.cy,p=a.xv,r=a.xForText,s=a.yForText,t=a.duration,u=1,v=j.index,w=j.length,x=b.getValueOnIndex(b.data.targets[0].values,v),y=b.getValueOnIndex(b.data.targets[0].values,v+w),z=b.x.domain(),A=j.duration||t,B=j.done||function(){},C=b.generateWait(),D=b.xgrid||d.selectAll([]),E=b.xgridLines||d.selectAll([]),F=b.mainRegion||d.selectAll([]),G=b.mainText||d.selectAll([]),H=b.mainBar||d.selectAll([]),I=b.mainLine||d.selectAll([]),J=b.mainArea||d.selectAll([]),K=b.mainCircle||d.selectAll([]);b.flowing=!0,b.data.targets.forEach(function(a){a.values.splice(0,w)}),g=b.updateXDomain(h,!0,!0),b.updateXGrid&&b.updateXGrid(!0),j.orgDataCount?e=1===j.orgDataCount||x.x===y.x?b.x(z[0])-b.x(g[0]):b.isTimeSeries()?b.x(z[0])-b.x(g[0]):b.x(x.x)-b.x(y.x):1!==b.data.targets[0].values.length?e=b.x(z[0])-b.x(g[0]):b.isTimeSeries()?(x=b.getValueOnIndex(b.data.targets[0].values,0),y=b.getValueOnIndex(b.data.targets[0].values,b.data.targets[0].values.length-1),e=b.x(x.x)-b.x(y.x)):e=q(g)/2,u=q(z)/q(g),f="translate("+e+",0) scale("+u+",1)",b.hideXGridFocus(),b.hideTooltip(),d.transition().ease("linear").duration(A).each(function(){C.add(b.axes.x.transition().call(b.xAxis)),C.add(H.transition().attr("transform",f)),C.add(I.transition().attr("transform",f)),C.add(J.transition().attr("transform",f)),C.add(K.transition().attr("transform",f)),C.add(G.transition().attr("transform",f)),C.add(F.filter(b.isRegionOnX).transition().attr("transform",f)),C.add(D.transition().attr("transform",f)),C.add(E.transition().attr("transform",f))}).call(C,function(){var a,d=[],e=[],f=[];if(w){for(a=0;w>a;a++)d.push("."+i.shape+"-"+(v+a)),e.push("."+i.text+"-"+(v+a)),f.push("."+i.eventRect+"-"+(v+a));b.svg.selectAll("."+i.shapes).selectAll(d).remove(),b.svg.selectAll("."+i.texts).selectAll(e).remove(),b.svg.selectAll("."+i.eventRects).selectAll(f).remove(),b.svg.select("."+i.xgrid).remove()}D.attr("transform",null).attr(b.xgridAttr),E.attr("transform",null),E.select("line").attr("x1",c.axis_rotated?0:p).attr("x2",c.axis_rotated?b.width:p),E.select("text").attr("x",c.axis_rotated?b.width:0).attr("y",p),H.attr("transform",null).attr("d",k),I.attr("transform",null).attr("d",l),J.attr("transform",null).attr("d",m),K.attr("transform",null).attr("cx",n).attr("cy",o),G.attr("transform",null).attr("x",r).attr("y",s).style("fill-opacity",b.opacityForText.bind(b)),F.attr("transform",null),F.select("rect").filter(b.isRegionOnX).attr("x",b.regionX.bind(b)).attr("width",b.regionWidth.bind(b)),c.interaction_enabled&&b.redrawEventRect(),B(),b.flowing=!1
diff --git a/src/c3.axis.js b/src/c3.axis.js
index be8efe8..735b97c 100644
--- a/src/c3.axis.js
+++ b/src/c3.axis.js
@@ -7,7 +7,6 @@ function c3_axis(d3, params) {
     var scale = d3.scale.linear(), orient = "bottom", innerTickSize = 6, outerTickSize, tickPadding = 3, tickValues = null, tickFormat, tickArguments;
 
     var tickOffset = 0, tickCulling = true, tickCentered;
-    var axis_g;
 
     params = params || {};
     outerTickSize = params.withOuterTick ? 6 : 0;
@@ -74,9 +73,9 @@ function c3_axis(d3, params) {
         return size;
     }
     function axis(g) {
-        axis_g = g;
         g.each(function () {
-            var g = d3.select(this);
+            var g = axis.g = d3.select(this);
+
             var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = copyScale();
 
             var ticks = tickValues ? tickValues : generateTicks(scale1),
@@ -268,8 +267,8 @@ function c3_axis(d3, params) {
             interval = tickOffset * 2;
         }
         else {
-            length = axis_g.select('path.domain').node().getTotalLength() - outerTickSize * 2;
-            interval = length / axis_g.selectAll('line').size();
+            length = axis.g.select('path.domain').node().getTotalLength() - outerTickSize * 2;
+            interval = length / axis.g.selectAll('line').size();
         }
         return interval;
     };