From 2d76b1074916a4b390d10f52020bca1b018abe35 Mon Sep 17 00:00:00 2001
From: Bob Monteverde <bobmonteverde@gmail.com>
Date: Wed, 22 Aug 2012 13:35:41 -0400
Subject: [PATCH] More progress cleaning up the sparklinePlus model

---
 examples/sparklinePlus.html |  5 -----
 nv.d3.js                    | 40 +++++++++++++++++--------------------
 nv.d3.min.js                |  2 +-
 src/models/sparklinePlus.js | 40 +++++++++++++++++--------------------
 src/nv.d3.css               |  6 +++++-
 5 files changed, 42 insertions(+), 51 deletions(-)

diff --git a/examples/sparklinePlus.html b/examples/sparklinePlus.html
index 191c9ef..98e292c 100644
--- a/examples/sparklinePlus.html
+++ b/examples/sparklinePlus.html
@@ -3,11 +3,6 @@
 <link href="../src/nv.d3.css" rel="stylesheet" type="text/css">
 <style>
 
-.sparkline path {
-  fill: none;
-  stroke: #444;
-}
-
 text {
   font: 10px sans-serif;
 }
diff --git a/nv.d3.js b/nv.d3.js
index b42f11f..8588e61 100644
--- a/nv.d3.js
+++ b/nv.d3.js
@@ -8705,10 +8705,10 @@ nv.models.sparklinePlus = function() {
       var gEnter = wrapEnter.append('g');
       var g = wrap.select('g');
 
-      gEnter.append('g').attr('class', 'nv-sparklineWrap')
+      gEnter.append('g').attr('class', 'nv-sparklineWrap');
       gEnter.append('g').attr('class', 'nv-hoverArea');
 
-      wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')')
+      wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
 
       //------------------------------------------------------------
 
@@ -8757,20 +8757,31 @@ nv.models.sparklinePlus = function() {
           .attr('dy', '.9em');
 
       var hoverY = hoverG.append('text').attr('class', 'nv-yValue')
-          //.attr('transform', function(d) { return 'translate(' + x(d) + ',0)' })
           .attr('x', 6)
           .attr('y', -margin.top)
           .attr('text-anchor', 'start')
           .attr('dy', '.9em');
 
+      updateValueLine();
+
 
+      function updateValueLine() { //index is currently global (within the chart), may or may not keep it that way
+        g.selectAll('.nv-hoverValue').data([index])
+            .attr('transform', function(d) { return 'translate(' + x(sparkline.x()(data[d],d)) + ',0)' });
+
+        hoverValue.select('.nv-xValue')
+            .text(xTickFormat(sparkline.x()(data[index])));
+
+        hoverValue.select('.nv-yValue')
+            .text(yTickFormat(sparkline.y()(data[index])));
+      }
 
 
       function sparklineHover() {
         var pos = d3.event.offsetX - margin.left;
 
-        var f = function(data, x){
-          var distance = Math.abs(sparkline.x()(data[0]) - x) ;
+        function getClosestIndex(data, x) {
+          var distance = Math.abs(sparkline.x()(data[0]) - x);
           var closestIndex = 0;
           for (var i = 0; i < data.length; i++){
             if (Math.abs(sparkline.x()(data[i]) - x) < distance) {
@@ -8781,24 +8792,9 @@ nv.models.sparklinePlus = function() {
           return closestIndex;
         }
 
-        index = f(data, Math.round(x.invert(pos)));
-
-        g.selectAll('.nv-hoverValue').data([index])
-            .attr('transform', function(d) { return 'translate(' + x(sparkline.x()(data[d],d)) + ',0)' });
-        /*
-        hoverValue.select('line')
-            .attr('x1', pos)
-            .attr('x2', pos);
-           */
-
-        //hoverX
-        hoverValue.select('.nv-xValue')
-            .text(xTickFormat(Math.round(x.invert(pos))));
-
+        index = getClosestIndex(data, Math.round(x.invert(pos)));
 
-        //hoverY
-        hoverValue.select('.nv-yValue')
-            .text(yTickFormat(sparkline.y()(data[f(data, Math.round(x.invert(pos)))])));
+        updateValueLine();
       }
 
     });
diff --git a/nv.d3.min.js b/nv.d3.min.js
index 481a3d1..765e005 100644
--- a/nv.d3.min.js
+++ b/nv.d3.min.js
@@ -1,4 +1,4 @@
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G=F.enter().append("g").attr("transform",function(b,c,d){return"translate("+u(l?b.y0:0)+","+(l?0:d*f.rangeBand()/a.length+f(h(b,c)))+")"});G.append("rect").attr("width",0).attr("height",f.rangeBand()/(l?1:a.length)),F.on("mouseover",function(b,c){d3.select(this).classed("hover",!0),s.elementMouseover({value:i(b,c),point:b,series:a[b.series],pos:[g(i(b,c)+(l?b.y0:0)),f(h(b,c))+f.rangeBand()*(l?a.length/2:b.series+.5)/a.length],pointIndex:c,seriesIndex:b.series,e:d3.event})}).on("mouseout",function(b,c){d3.select(this).classed("hover",!1),s.elementMouseout({value:i(b,c),point:b,series:a[b.series],pointIndex:c,seriesIndex:b.series,e:d3.event})}).on("click",function(b,c){s.elementClick({value:i(b,c),point:b,series:a[b.series],pos:[f(h(b,c))+f.rangeBand()*(l?a.length/2:b.series+.5)/a.length,g(i(b,c)+(l?b.y0:0))],pointIndex:c,seriesIndex:b.series,e:d3.event}),d3.event.stopPropagation()}).on("dblclick",function(b,c){s.elementDblClick({value:i(b,c),point:b,series:a[b.series],pos:[f(h(b,c))+f.rangeBand()*(l?a.length/2:b.series+.5)/a.length,g(i(b,c)+(l?b.y0:0))],pointIndex:c,seriesIndex:b.series,e:d3.event}),d3.event.stopPropagation()}),m&&!l?(G.append("text").attr("text-anchor",function(a,b){return 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E=C.select(".nv-barsWrap").datum(m.filter(function(a){return!a.disabled}));d3.transition(E).call(b),c.scale(p).ticks(z/24).tickSize(-w,0),d3.transition(C.select(".nv-x.nv-axis")).call(c);var F=C.select(".nv-x.nv-axis").selectAll("g");F.selectAll("line, text").style("opacity",1),d.scale(q).ticks(w/100).tickSize(-z,0),C.select(".nv-y.nv-axis").attr("transform","translate(0,"+z+")"),d3.transition(C.select(".nv-y.nv-axis")).call(d),e.dispatch.on("legendClick",function(b,c){b.disabled=!b.disabled,m.filter(function(a){return!a.disabled}).length||m.map(function(a){a.disabled=!1,A.selectAll(".nv-series").classed("disabled",!1);return a}),a.transition().call(u)}),f.dispatch.on("legendClick",function(c,d){if(!!c.disabled){D=D.map(function(a){a.disabled=!0;return 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g=e.pos[0]+(f.offsetLeft||0),h=e.pos[1]+(f.offsetTop||0),i=c.tickFormat()(b.x()(e.point,e.pointIndex)),j=d.tickFormat()(b.y()(e.point,e.pointIndex)),k=o(e.series.key,i,j,e,u);a.tooltip.show([g,h],k,e.value<0?"e":"w",null,f)};b.dispatch.on("elementMouseover.tooltip",function(a){a.pos=[a.pos[0]+g.left,a.pos[1]+g.top],s.tooltipShow(a)}),b.dispatch.on("elementMouseout.tooltip",function(a){s.tooltipHide(a)}),s.on("tooltipHide",function(){n&&a.tooltip.cleanup()}),u.dispatch=s,u.multibar=b,u.legend=e,u.xAxis=c,u.yAxis=d,d3.rebind(u,b,"x","y","xDomain","yDomain","forceX","forceY","clipEdge","id","delay","showValues","valueFormat","stacked"),u.margin=function(a){if(!arguments.length)return g;g=a;return u},u.width=function(a){if(!arguments.length)return h;h=a;return u},u.height=function(a){if(!arguments.length)return i;i=a;return u},u.color=function(b){if(!arguments.length)return j;j=a.utils.getColor(b),e.color(j);return u},u.showControls=function(a){if(!arguments.length)return k;k=a;return 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j=d3.select(this),z=this,A=(d||parseInt(j.style("width"))||960)-b.left-b.right,B=(e||parseInt(j.style("height"))||400)-b.top-b.bottom,C=h.filter(function(a){return!a.disabled&&a.type=="line"&&a.yAxis==1}),D=h.filter(function(a){return!a.disabled&&a.type=="line"&&a.yAxis==2}),E=h.filter(function(a){return!a.disabled&&a.type=="bar"&&a.yAxis==1}),F=h.filter(function(a){return!a.disabled&&a.type=="bar"&&a.yAxis==2}),G=h.filter(function(a){return!a.disabled&&a.type=="area"&&a.yAxis==1}),H=h.filter(function(a){return!a.disabled&&a.type=="area"&&a.yAxis==2}),I=h.filter(function(a){return!a.disabled&&a.yAxis==1}).map(function(a){return a.values.map(function(a,b){return{x:a.x,y:a.y}})}),J=h.filter(function(a){return!a.disabled&&a.yAxis==2}).map(function(a){return a.values.map(function(a,b){return{x:a.x,y:a.y}})});i.domain(d3.extent(d3.merge(I.concat(J)),function(a){return a.x})).range([0,A]);var K=j.selectAll("g.wrap.multiChart").data([h]),L=K.enter().append("g").attr("class","wrap nvd3 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N=M.select(".lines1Wrap").datum(C),O=M.select(".bars1Wrap").datum(E),P=M.select(".stack1Wrap").datum(G),Q=M.select(".lines2Wrap").datum(D),R=M.select(".bars2Wrap").datum(F),S=M.select(".stack2Wrap").datum(H),T=G.length?G.map(function(a){return a.values}).reduce(function(a,b){return a.map(function(a,c){return{x:a.x,y:a.y+b[c].y}})}).concat([{x:0,y:0}]):[],U=H.length?H.map(function(a){return a.values}).reduce(function(a,b){return a.map(function(a,c){return{x:a.x,y:a.y+b[c].y}})}).concat([{x:0,y:0}]):[];k.domain(d3.extent(d3.merge(I).concat(T),function(a){return a.y})).range([0,B]),l.domain(d3.extent(d3.merge(J).concat(U),function(a){return 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a.values});R.enter().append("path").attr("transform",function(a,b){return"translate("+C(j(a,b))+","+D(k(a,b))+")"}).attr("d",d3.svg.symbol().type(m).size(function(a,b){return i(l(a,b))})),R.exit().remove(),d3.transition(Q.exit().selectAll("path.nv-point")).attr("transform",function(a,b){return"translate("+g(j(a,b))+","+h(k(a,b))+")"}).remove(),R.attr("class",function(a,b){return"nv-point nv-point-"+b}),d3.transition(R).attr("transform",function(a,b){return"translate("+g(j(a,b))+","+h(k(a,b))+")"}).attr("d",d3.svg.symbol().type(m).size(function(a,b){return i(l(a,b))})),clearTimeout(F),F=setTimeout(P,1e3),C=g.copy(),D=h.copy(),E=i.copy()});return G}var b={top:0,right:0,bottom:0,left:0},c=960,d=500,e=a.utils.defaultColor(),f=Math.floor(Math.random()*1e5),g=d3.scale.linear(),h=d3.scale.linear(),i=d3.scale.linear(),j=function(a){return a.x},k=function(a){return a.y},l=function(a){return a.size},m=function(a){return 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g=e.pos[0]+(f.offsetLeft||0),h=e.pos[1]+(f.offsetTop||0),j=e.pos[0]+(f.offsetLeft||0),k=n.range()[0]+i.top+(f.offsetTop||0),l=m.range()[0]+i.left+(f.offsetLeft||0),o=e.pos[1]+(f.offsetTop||0),p=c.tickFormat()(b.x()(e.point,e.pointIndex)),q=d.tickFormat()(b.y()(e.point,e.pointIndex));v!=null&&a.tooltip.show([j,k],v(e.series.key,p,q,e,E),"n",1,f,"x-nvtooltip"),w!=null&&a.tooltip.show([l,o],w(e.series.key,p,q,e,E),"e",1,f,"y-nvtooltip"),x!=null&&a.tooltip.show([g,h],x(e.series.key,p,q,e,E),e.value<0?"n":"s",null,f)},D=[{key:"Magnify",disabled:!0}];b.dispatch.on("elementMouseout.tooltip",function(a){y.tooltipHide(a),d3.select(".nv-chart-"+b.id()+" .nv-series-"+a.seriesIndex+" .nv-distx-"+a.pointIndex).attr("y1",0),d3.select(".nv-chart-"+b.id()+" .nv-series-"+a.seriesIndex+" 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E},E.fisheye=function(a){if(!arguments.length)return s;s=a;return E},E.tooltips=function(a){if(!arguments.length)return u;u=a;return E},E.tooltipContent=function(a){if(!arguments.length)return x;x=a;return E},E.tooltipXContent=function(a){if(!arguments.length)return v;v=a;return E},E.tooltipYContent=function(a){if(!arguments.length)return w;w=a;return E},E.noData=function(a){if(!arguments.length)return z;z=a;return E};return E},a.models.sparkline=function(){function m(a){a.each(function(a){var e=c-b.left-b.right,m=d-b.top-b.bottom,n=d3.select(this);f.domain(k||d3.extent(a,h)).range([0,e]),g.domain(l||d3.extent(a,i)).range([m,0]);var o=n.selectAll("g.nv-wrap.nv-sparkline").data([a]),p=o.enter().append("g").attr("class","nvd3 nv-wrap nv-sparkline"),q=p.append("g"),r=o.select("g");o.attr("transform","translate("+b.left+","+b.top+")");var s=o.selectAll("path").data(function(a){return[a]});s.enter().append("path"),s.exit().remove(),s.style("stroke",function(a,b){return a.color||j(a,b)}).attr("d",d3.svg.line().x(function(a,b){return f(h(a,b))}).y(function(a,b){return g(i(a,b))}));var t=o.selectAll("circle.nv-point").data(function(a){return a.filter(function(a,b){return g.domain().indexOf(i(a,b))!=-1||h(a,b)==f.domain()[1]})});t.enter().append("circle").attr("class","nv-point"),t.exit().remove(),t.attr("cx",function(a,b){return f(h(a,b))}).attr("cy",function(a,b){return g(i(a,b))}).attr("r",2).style("stroke",function(a,b){return a.x==f.domain()[1]?"#444":a.y==g.domain()[0]?"#d62728":"#2ca02c"}).style("fill",function(a,b){return a.x==f.domain()[1]?"#444":a.y==g.domain()[0]?"#d62728":"#2ca02c"})});return m}var b={top:2,right:0,bottom:2,left:0},c=400,d=32,e=!0,f=d3.scale.linear(),g=d3.scale.linear(),h=function(a){return a.x},i=function(a){return a.y},j=a.utils.getColor(["#000"]),k,l;m.margin=function(a){if(!arguments.length)return b;b=a;return m},m.width=function(a){if(!arguments.length)return c;c=a;return m},m.height=function(a){if(!arguments.length)return d;d=a;return m},m.x=function(a){if(!arguments.length)return h;h=d3.functor(a);return m},m.y=function(a){if(!arguments.length)return i;i=d3.functor(a);return m},m.xScale=function(a){if(!arguments.length)return f;f=a;return m},m.yScale=function(a){if(!arguments.length)return g;g=a;return m},m.xDomain=function(a){if(!arguments.length)return k;k=a;return m},m.yDomain=function(a){if(!arguments.length)return l;l=a;return m},m.animate=function(a){if(!arguments.length)return e;e=a;return m},m.color=function(b){if(!arguments.length)return j;j=a.utils.getColor(b);return m};return m},a.models.sparklinePlus=function(){function m(a){a.each(function(a){function D(){var d=d3.event.offsetX-c.left,e=function(a,c){var d=Math.abs(b.x()(a[0])-c),e=0;for(var f=0;f<a.length;f++)Math.abs(b.x()(a[f])-c)<d&&(d=Math.abs(b.x()(a[f])-c),e=f);return e};i=e(a,Math.round(f.invert(d))),t.selectAll(".nv-hoverValue").data([i]).attr("transform",function(c){return"translate("+f(b.x()(a[c],c))+",0)"}),w.select(".nv-xValue").text(j(Math.round(f.invert(d)))),w.select(".nv-yValue").text(k(b.y()(a[e(a,Math.round(f.invert(d)))])))}var n=d3.select(this),o=(d||parseInt(n.style("width"))||960)-c.left-c.right,p=(e||parseInt(n.style("height"))||400)-c.top-c.bottom;if(!a||!a.length){n.append("text").attr("class","nvd3 nv-noData").attr("x",o/2).attr("y",p/2).attr("dy","-.7em").style("text-anchor","middle").text(l);return m}n.select(".nv-noData").remove(),f=b.xScale(),g=b.yScale();var q=n.selectAll("g.nv-wrap.nv-sparklineplus").data([a]),r=q.enter().append("g").attr("class","nvd3 nv-wrap nv-sparklineplus"),s=r.append("g"),t=q.select("g");s.append("g").attr("class","nv-sparklineWrap"),s.append("g").attr("class","nv-hoverArea"),q.attr("transform","translate("+c.left+","+c.top+")");var u=t.select(".nv-sparklineWrap");b.width(o).height(p),u.style("stroke",function(a,b){return a.color||h(a,b)}).call(b);var v=s.select(".nv-hoverArea");v.append("rect").attr("width",o).attr("height",p).on("mousemove",D),i=a.length-1;var w=t.selectAll(".nv-hoverValue").data([i]),z=w.enter().append("g").attr("class","nv-hoverValue");w.attr("transform",function(c){return"translate("+f(b.x()(a[c],c))+",0)"});var A=z.append("line").attr("x1",0).attr("y1",-c.top).attr("x2",0).attr("y2",p),B=z.append("text").attr("class","nv-xValue").attr("x",-6).attr("y",-c.top).attr("text-anchor","end").attr("dy",".9em"),C=z.append("text").attr("class","nv-yValue").attr("x",6).attr("y",-c.top).attr("text-anchor","start").attr("dy",".9em")});return m}var b=a.models.sparkline(),c={top:15,right:40,bottom:3,left:40},d=null,e=null,f,g,h=a.utils.defaultColor(),i,j=d3.format(",r"),k=d3.format(",.2f"),l="No Data 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s=r.selectAll("g.nv-wrap.nv-stackedarea").data([a]),t=s.enter().append("g").attr("class","nvd3 nv-wrap nv-stackedarea"),u=t.append("defs"),v=t.append("g"),w=s.select("g");v.append("g").attr("class","nv-areaWrap"),v.append("g").attr("class","nv-scatterWrap"),s.attr("transform","translate("+b.left+","+b.top+")"),o.width(i).height(q).x(g).y(function(a){return a.display.y+a.display.y0}).forceY([0]).color(a.map(function(a,b){return a.color||e(a,b)}).filter(function(b,c){return!a[c].disabled}));var z=w.select(".nv-scatterWrap").datum(a.filter(function(a){return!a.disabled}));d3.transition(z).call(o),u.append("clipPath").attr("id","nv-edge-clip-"+f).append("rect"),s.select("#nv-edge-clip-"+f+" rect").attr("width",i).attr("height",q),w.attr("clip-path",l?"url(#nv-edge-clip-"+f+")":"");var A=d3.svg.area().x(function(a,b){return m(g(a,b))}).y0(function(a){return n(a.display.y0)}).y1(function(a){return n(a.display.y+a.display.y0)}),B=d3.svg.area().x(function(a,b){return m(g(a,b))}).y0(function(a){return n(a.display.y0)}).y1(function(a){return n(a.display.y0)}),C=w.select(".nv-areaWrap").selectAll("path.nv-area").data(function(a){return a});C.enter().append("path").attr("class",function(a,b){return"nv-area nv-area-"+b}).on("mouseover",function(a,b){d3.select(this).classed("hover",!0),p.areaMouseover({point:a,series:a.key,pos:[d3.event.pageX,d3.event.pageY],seriesIndex:b})}).on("mouseout",function(a,b){d3.select(this).classed("hover",!1),p.areaMouseout({point:a,series:a.key,pos:[d3.event.pageX,d3.event.pageY],seriesIndex:b})}).on("click",function(a,b){d3.select(this).classed("hover",!1),p.areaClick({point:a,series:a.key,pos:[d3.event.pageX,d3.event.pageY],seriesIndex:b})}),d3.transition(C.exit()).attr("d",function(a,b){return B(a.values,b)}).remove(),C.style("fill",function(a,b){return a.color||e(a,b)}).style("stroke",function(a,b){return a.color||e(a,b)}),d3.transition(C).attr("d",function(a,b){return 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l;l=a;return q},q.color=function(b){if(!arguments.length)return e;e=a.utils.getColor(b);return q},q.offset=function(a){if(!arguments.length)return j;j=a;return q},q.order=function(a){if(!arguments.length)return k;k=a;return q},q.style=function(a){if(!arguments.length)return i;i=a;switch(i){case"stack":q.offset("zero"),q.order("default");break;case"stream":q.offset("wiggle"),q.order("inside-out");break;case"expand":q.offset("expand"),q.order("default")}return q};return q},a.models.stackedAreaChart=function(){function u(a){a.each(function(j){var n=d3.select(this),v=this,w=(h||parseInt(n.style("width"))||960)-g.left-g.right,z=(i||parseInt(n.style("height"))||400)-g.top-g.bottom;if(!j||!j.length||!j.filter(function(a){return a.values.length}).length){n.append("text").attr("class","nvd3 nv-noData").attr("x",w/2).attr("y",z/2).attr("dy","-.7em").style("text-anchor","middle").text(r);return u}n.select(".nv-noData").remove(),o=b.xScale(),p=b.yScale();var A=n.selectAll("g.nv-wrap.nv-stackedAreaChart").data([j]),B=A.enter().append("g").attr("class","nvd3 nv-wrap nv-stackedAreaChart").append("g"),C=A.select("g");B.append("g").attr("class","nv-x nv-axis"),B.append("g").attr("class","nv-y nv-axis"),B.append("g").attr("class","nv-stackedWrap"),B.append("g").attr("class","nv-legendWrap"),B.append("g").attr("class","nv-controlsWrap"),l&&(e.width(w/2),C.select(".nv-legendWrap").datum(j).call(e),g.top!=e.height()&&(g.top=e.height(),z=(i||parseInt(n.style("height"))||400)-g.top-g.bottom),C.select(".nv-legendWrap").attr("transform","translate("+w/2+","+ -g.top+")"));if(k){var D=[{key:"Stacked",disabled:b.offset()!="zero"},{key:"Stream",disabled:b.offset()!="wiggle"},{key:"Expanded",disabled:b.offset()!="expand"}];f.width(280).color(["#444","#444","#444"]),C.select(".nv-controlsWrap").datum(D).attr("transform","translate(0,"+ -g.top+")").call(f)}A.attr("transform","translate("+g.left+","+g.top+")"),b.width(w).height(z);var E=C.select(".nv-stackedWrap").datum(j);d3.transition(E).call(b),c.scale(o).ticks(w/100).tickSize(-z,0),C.select(".nv-x.nv-axis").attr("transform","translate(0,"+z+")"),d3.transition(C.select(".nv-x.nv-axis")).call(c),d.scale(p).ticks(b.offset()=="wiggle"?0:z/36).tickSize(-w,0).setTickFormat(b.offset()=="expand"?d3.format("%"):q),d3.transition(C.select(".nv-y.nv-axis")).call(d),b.dispatch.on("areaClick.toggle",function(b){j.filter(function(a){return!a.disabled}).length===1?j=j.map(function(a){a.disabled=!1;return a}):j=j.map(function(a,c){a.disabled=c!=b.seriesIndex;return a}),a.transition().call(u)}),e.dispatch.on("legendClick",function(b,c){b.disabled=!b.disabled,j.filter(function(a){return!a.disabled}).length||j.map(function(a){a.disabled=!1;return a}),a.transition().call(u)}),f.dispatch.on("legendClick",function(c,d){if(!!c.disabled){D=D.map(function(a){a.disabled=!0;return 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a.values.map(function(a,b){return{x:j(a,b),y:k(a,b),size:l(a,b)}})}));g.domain(v||d3.extent(J.map(function(a){return a.x}).concat(n))).range([0,G]),h.domain(w||d3.extent(J.map(function(a){return a.y}).concat(o))).range([H,0]),i.domain(x||d3.extent(J.map(function(a){return a.size}).concat(p))).range(y||[16,256]);if(g.domain()[0]===g.domain()[1]||h.domain()[0]===h.domain()[1])z=!0;g.domain()[0]===g.domain()[1]&&(g.domain()[0]?g.domain([g.domain()[0]-g.domain()[0]*.01,g.domain()[1]+g.domain()[1]*.01]):g.domain([-1,1])),h.domain()[0]===h.domain()[1]&&(h.domain()[0]?h.domain([h.domain()[0]+h.domain()[0]*.01,h.domain()[1]-h.domain()[1]*.01]):h.domain([-1,1])),C=C||g,D=D||h,E=E||i;var K=I.selectAll("g.nv-wrap.nv-scatter").data([a]),L=K.enter().append("g").attr("class","nvd3 nv-wrap nv-scatter nv-chart-"+f+(z?" 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a.values});R.enter().append("path").attr("transform",function(a,b){return"translate("+C(j(a,b))+","+D(k(a,b))+")"}).attr("d",d3.svg.symbol().type(m).size(function(a,b){return i(l(a,b))})),R.exit().remove(),d3.transition(Q.exit().selectAll("path.nv-point")).attr("transform",function(a,b){return"translate("+g(j(a,b))+","+h(k(a,b))+")"}).remove(),R.attr("class",function(a,b){return"nv-point nv-point-"+b}),d3.transition(R).attr("transform",function(a,b){return"translate("+g(j(a,b))+","+h(k(a,b))+")"}).attr("d",d3.svg.symbol().type(m).size(function(a,b){return i(l(a,b))})),clearTimeout(F),F=setTimeout(P,1e3),C=g.copy(),D=h.copy(),E=i.copy()});return G}var b={top:0,right:0,bottom:0,left:0},c=960,d=500,e=a.utils.defaultColor(),f=Math.floor(Math.random()*1e5),g=d3.scale.linear(),h=d3.scale.linear(),i=d3.scale.linear(),j=function(a){return a.x},k=function(a){return a.y},l=function(a){return a.size},m=function(a){return 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g=e.pos[0]+(f.offsetLeft||0),h=e.pos[1]+(f.offsetTop||0),j=e.pos[0]+(f.offsetLeft||0),k=n.range()[0]+i.top+(f.offsetTop||0),l=m.range()[0]+i.left+(f.offsetLeft||0),o=e.pos[1]+(f.offsetTop||0),p=c.tickFormat()(b.x()(e.point,e.pointIndex)),q=d.tickFormat()(b.y()(e.point,e.pointIndex));v!=null&&a.tooltip.show([j,k],v(e.series.key,p,q,e,E),"n",1,f,"x-nvtooltip"),w!=null&&a.tooltip.show([l,o],w(e.series.key,p,q,e,E),"e",1,f,"y-nvtooltip"),x!=null&&a.tooltip.show([g,h],x(e.series.key,p,q,e,E),e.value<0?"n":"s",null,f)},D=[{key:"Magnify",disabled:!0}];b.dispatch.on("elementMouseout.tooltip",function(a){y.tooltipHide(a),d3.select(".nv-chart-"+b.id()+" .nv-series-"+a.seriesIndex+" .nv-distx-"+a.pointIndex).attr("y1",0),d3.select(".nv-chart-"+b.id()+" .nv-series-"+a.seriesIndex+" 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v=s.select(".nv-hoverArea");v.append("rect").attr("width",o).attr("height",p).on("mousemove",E),i=a.length-1;var w=t.selectAll(".nv-hoverValue").data([i]),z=w.enter().append("g").attr("class","nv-hoverValue");w.attr("transform",function(c){return"translate("+f(b.x()(a[c],c))+",0)"});var A=z.append("line").attr("x1",0).attr("y1",-c.top).attr("x2",0).attr("y2",p),B=z.append("text").attr("class","nv-xValue").attr("x",-6).attr("y",-c.top).attr("text-anchor","end").attr("dy",".9em"),C=z.append("text").attr("class","nv-yValue").attr("x",6).attr("y",-c.top).attr("text-anchor","start").attr("dy",".9em");D()});return m}var b=a.models.sparkline(),c={top:15,right:40,bottom:3,left:40},d=null,e=null,f,g,h=a.utils.defaultColor(),i,j=d3.format(",r"),k=d3.format(",.2f"),l="No Data Available.";m.sparkline=b,d3.rebind(m,b,"x","y","xScale","yScale"),m.margin=function(a){if(!arguments.length)return c;c=a;return m},m.width=function(a){if(!arguments.length)return d;d=a;return 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n(a.display.y0)}),C=w.select(".nv-areaWrap").selectAll("path.nv-area").data(function(a){return a});C.enter().append("path").attr("class",function(a,b){return"nv-area nv-area-"+b}).on("mouseover",function(a,b){d3.select(this).classed("hover",!0),p.areaMouseover({point:a,series:a.key,pos:[d3.event.pageX,d3.event.pageY],seriesIndex:b})}).on("mouseout",function(a,b){d3.select(this).classed("hover",!1),p.areaMouseout({point:a,series:a.key,pos:[d3.event.pageX,d3.event.pageY],seriesIndex:b})}).on("click",function(a,b){d3.select(this).classed("hover",!1),p.areaClick({point:a,series:a.key,pos:[d3.event.pageX,d3.event.pageY],seriesIndex:b})}),d3.transition(C.exit()).attr("d",function(a,b){return B(a.values,b)}).remove(),C.style("fill",function(a,b){return a.color||e(a,b)}).style("stroke",function(a,b){return a.color||e(a,b)}),d3.transition(C).attr("d",function(a,b){return A(a.values,b)}),o.dispatch.on("elementMouseover.area",function(a){w.select(".nv-chart-"+f+" 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n=d3.select(this),v=this,w=(h||parseInt(n.style("width"))||960)-g.left-g.right,z=(i||parseInt(n.style("height"))||400)-g.top-g.bottom;if(!j||!j.length||!j.filter(function(a){return a.values.length}).length){n.append("text").attr("class","nvd3 nv-noData").attr("x",w/2).attr("y",z/2).attr("dy","-.7em").style("text-anchor","middle").text(r);return u}n.select(".nv-noData").remove(),o=b.xScale(),p=b.yScale();var A=n.selectAll("g.nv-wrap.nv-stackedAreaChart").data([j]),B=A.enter().append("g").attr("class","nvd3 nv-wrap nv-stackedAreaChart").append("g"),C=A.select("g");B.append("g").attr("class","nv-x nv-axis"),B.append("g").attr("class","nv-y nv-axis"),B.append("g").attr("class","nv-stackedWrap"),B.append("g").attr("class","nv-legendWrap"),B.append("g").attr("class","nv-controlsWrap"),l&&(e.width(w/2),C.select(".nv-legendWrap").datum(j).call(e),g.top!=e.height()&&(g.top=e.height(),z=(i||parseInt(n.style("height"))||400)-g.top-g.bottom),C.select(".nv-legendWrap").attr("transform","translate("+w/2+","+ -g.top+")"));if(k){var D=[{key:"Stacked",disabled:b.offset()!="zero"},{key:"Stream",disabled:b.offset()!="wiggle"},{key:"Expanded",disabled:b.offset()!="expand"}];f.width(280).color(["#444","#444","#444"]),C.select(".nv-controlsWrap").datum(D).attr("transform","translate(0,"+ -g.top+")").call(f)}A.attr("transform","translate("+g.left+","+g.top+")"),b.width(w).height(z);var E=C.select(".nv-stackedWrap").datum(j);d3.transition(E).call(b),c.scale(o).ticks(w/100).tickSize(-z,0),C.select(".nv-x.nv-axis").attr("transform","translate(0,"+z+")"),d3.transition(C.select(".nv-x.nv-axis")).call(c),d.scale(p).ticks(b.offset()=="wiggle"?0:z/36).tickSize(-w,0).setTickFormat(b.offset()=="expand"?d3.format("%"):q),d3.transition(C.select(".nv-y.nv-axis")).call(d),b.dispatch.on("areaClick.toggle",function(b){j.filter(function(a){return!a.disabled}).length===1?j=j.map(function(a){a.disabled=!1;return a}):j=j.map(function(a,c){a.disabled=c!=b.seriesIndex;return a}),a.transition().call(u)}),e.dispatch.on("legendClick",function(b,c){b.disabled=!b.disabled,j.filter(function(a){return!a.disabled}).length||j.map(function(a){a.disabled=!1;return a}),a.transition().call(u)}),f.dispatch.on("legendClick",function(c,d){if(!!c.disabled){D=D.map(function(a){a.disabled=!0;return a}),c.disabled=!1;switch(c.key){case"Stacked":b.style("stack");break;case"Stream":b.style("stream");break;case"Expanded":b.style("expand")}a.transition().call(u)}}),s.on("tooltipShow",function(a){m&&t(a,v.parentNode)})}),u.update=function(){u(a)},u.container=this;return u}var b=a.models.stackedArea(),c=a.models.axis(),d=a.models.axis(),e=a.models.legend(),f=a.models.legend(),g={top:30,right:25,bottom:50,left:60},h=null,i=null,j=a.utils.defaultColor(),k=!0,l=!0,m=!0,n=function(a,b,c,d,e){return"<h3>"+a+"</h3>"+"<p>"+c+" on "+b+"</p>"},o,p,q=d3.format(",.2f"),r="No Data Available.",s=d3.dispatch("tooltipShow","tooltipHide");c.orient("bottom").tickPadding(5),d.orient("left");var t=function(e,f){var g=e.pos[0]+(f.offsetLeft||0),h=e.pos[1]+(f.offsetTop||0),i=c.tickFormat()(b.x()(e.point,e.pointIndex)),j=d.tickFormat()(b.y()(e.point,e.pointIndex)),k=n(e.series.key,i,j,e,u);a.tooltip.show([g,h],k,e.value<0?"n":"s",null,f)};b.dispatch.on("tooltipShow",function(a){if(!Math.round(b.y()(a.point)*100)){setTimeout(function(){d3.selectAll(".point.hover").classed("hover",!1)},0);return!1}a.pos=[a.pos[0]+g.left,a.pos[1]+g.top],s.tooltipShow(a)}),b.dispatch.on("tooltipHide",function(a){s.tooltipHide(a)}),s.on("tooltipHide",function(){m&&a.tooltip.cleanup()}),u.dispatch=s,u.stacked=b,u.legend=e,u.controls=f,u.xAxis=c,u.yAxis=d,d3.rebind(u,b,"x","y","size","xScale","yScale","xDomain","yDomain","sizeDomain","interactive","offset","order","style","clipEdge","forceX","forceY","forceSize"),u.margin=function(a){if(!arguments.length)return g;g=a;return u},u.width=function(a){if(!arguments.length)return getWidth;h=a;return u},u.height=function(a){if(!arguments.length)return getHeight;i=a;return u},u.color=function(c){if(!arguments.length)return j;j=a.utils.getColor(c),e.color(j),b.color(j);return u},u.showControls=function(a){if(!arguments.length)return k;k=a;return u},u.showLegend=function(a){if(!arguments.length)return l;l=a;return u},u.tooltip=function(a){if(!arguments.length)return n;n=a;return u},u.tooltips=function(a){if(!arguments.length)return m;m=a;return u},u.tooltipContent=function(a){if(!arguments.length)return n;n=a;return u},u.noData=function(a){if(!arguments.length)return r;r=a;return u},d.setTickFormat=d.tickFormat,d.tickFormat=function(a){if(!arguments.length)return q;q=a;return d};return u}})()
\ No newline at end of file
diff --git a/src/models/sparklinePlus.js b/src/models/sparklinePlus.js
index 25fbbb4..724d5b8 100644
--- a/src/models/sparklinePlus.js
+++ b/src/models/sparklinePlus.js
@@ -69,10 +69,10 @@ nv.models.sparklinePlus = function() {
       var gEnter = wrapEnter.append('g');
       var g = wrap.select('g');
 
-      gEnter.append('g').attr('class', 'nv-sparklineWrap')
+      gEnter.append('g').attr('class', 'nv-sparklineWrap');
       gEnter.append('g').attr('class', 'nv-hoverArea');
 
-      wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')')
+      wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
 
       //------------------------------------------------------------
 
@@ -121,20 +121,31 @@ nv.models.sparklinePlus = function() {
           .attr('dy', '.9em');
 
       var hoverY = hoverG.append('text').attr('class', 'nv-yValue')
-          //.attr('transform', function(d) { return 'translate(' + x(d) + ',0)' })
           .attr('x', 6)
           .attr('y', -margin.top)
           .attr('text-anchor', 'start')
           .attr('dy', '.9em');
 
+      updateValueLine();
 
 
+      function updateValueLine() { //index is currently global (within the chart), may or may not keep it that way
+        g.selectAll('.nv-hoverValue').data([index])
+            .attr('transform', function(d) { return 'translate(' + x(sparkline.x()(data[d],d)) + ',0)' });
+
+        hoverValue.select('.nv-xValue')
+            .text(xTickFormat(sparkline.x()(data[index])));
+
+        hoverValue.select('.nv-yValue')
+            .text(yTickFormat(sparkline.y()(data[index])));
+      }
+
 
       function sparklineHover() {
         var pos = d3.event.offsetX - margin.left;
 
-        var f = function(data, x){
-          var distance = Math.abs(sparkline.x()(data[0]) - x) ;
+        function getClosestIndex(data, x) {
+          var distance = Math.abs(sparkline.x()(data[0]) - x);
           var closestIndex = 0;
           for (var i = 0; i < data.length; i++){
             if (Math.abs(sparkline.x()(data[i]) - x) < distance) {
@@ -145,24 +156,9 @@ nv.models.sparklinePlus = function() {
           return closestIndex;
         }
 
-        index = f(data, Math.round(x.invert(pos)));
+        index = getClosestIndex(data, Math.round(x.invert(pos)));
 
-        g.selectAll('.nv-hoverValue').data([index])
-            .attr('transform', function(d) { return 'translate(' + x(sparkline.x()(data[d],d)) + ',0)' });
-        /*
-        hoverValue.select('line')
-            .attr('x1', pos)
-            .attr('x2', pos);
-           */
-
-        //hoverX
-        hoverValue.select('.nv-xValue')
-            .text(xTickFormat(Math.round(x.invert(pos))));
-
-
-        //hoverY
-        hoverValue.select('.nv-yValue')
-            .text(yTickFormat(sparkline.y()(data[f(data, Math.round(x.invert(pos)))])));
+        updateValueLine();
       }
 
     });
diff --git a/src/nv.d3.css b/src/nv.d3.css
index 991de4d..072879e 100644
--- a/src/nv.d3.css
+++ b/src/nv.d3.css
@@ -492,9 +492,13 @@ svg .title {
 
 
 /**********
-* Sparkline plus
+* Sparkline
 */
 
+.nvd3.nv-sparkline path {
+  fill: none;
+}
+
 .nvd3.nv-sparklineplus .nv-hoverValue line {
   stroke: #f44;
   stroke-width: 1.5px;