"Week 11: Choropleth Map"

README.md

I think that tooltipsy dosen't work with the map because it only recognizes the svg area, not the countries' path. That could be an explanation to why the tooltip appears in the top of the svg.

africa.topojson

d3-legend.min.js

!function a(b,c,d){function e(g,h){if(!c[g]){if(!b[g]){var i="function"==typeof require&&require;if(!h&&i)return i(g,!0);if(f)return f(g,!0);var j=new Error("Cannot find module '"+g+"'");throw j.code="MODULE_NOT_FOUND",j}var k=c[g]={exports:{}};b[g][0].call(k.exports,function(a){var c=b[g][1][a];return e(c?c:a)},k,k.exports,a,b,c,d)}return c[g].exports}for(var f="function"==typeof require&&require,g=0;g<d.length;g++)e(d[g]);return e}({1:[function(a,b,c){var d=a("./legend");b.exports=function(){function a(a){var v=d.d3_calcType(c,t,j,k,o,r),w=a.append("g").attr("class",l+"legendCells"),x=w.selectAll("."+l+"cell").data(v.data),y=x.enter().append("g",".cell").attr("class",l+"cell").style("opacity",1e-6);shapeEnter=y.append(e).attr("class",l+"swatch"),shapes=x.select("g."+l+"cell "+e),d.d3_addEvents(y,u),x.exit().transition().style("opacity",0).remove(),d.d3_drawShapes(e,shapes,g,f,h,b),d.d3_addText(w,y,v.labels,l);var z=x.select("text"),A=shapes[0].map(function(a){return 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arguments.length?(l=b,a):a},a.title=function(b){return arguments.length?(n=b,a):a},d3.rebind(a,u,"on"),a}},{"./legend":2}],2:[function(a,b,c){b.exports={d3_identity:function(a){return a},d3_mergeLabels:function(a,b){if(0===b.length)return a;a=a?a:[];for(var c=b.length;c<a.length;c++)b.push(a[c]);return b},d3_linearLegend:function(a,b,c){var d=[];if(b.length>1)d=b;else for(var e=a.domain(),f=(e[e.length-1]-e[0])/(b-1),g=0;b>g;g++)d.push(e[0]+g*f);var h=d.map(c);return{data:d,labels:h,feature:function(b){return a(b)}}},d3_quantLegend:function(a,b,c){var d=a.range().map(function(d){var e=a.invertExtent(d);b(e[0]),b(e[1]);return b(e[0])+" "+c+" "+b(e[1])});return{data:a.range(),labels:d,feature:this.d3_identity}},d3_ordinalLegend:function(a){return{data:a.domain(),labels:a.domain(),feature:function(b){return a(b)}}},d3_drawShapes:function(a,b,c,d,e,f){"rect"===a?b.attr("height",c).attr("width",d):"circle"===a?b.attr("r",e):"line"===a?b.attr("x1",0).attr("x2",d).attr("y1",0).attr("y2",0):"path"===a&&b.attr("d",f)},d3_addText:function(a,b,c,d){b.append("text").attr("class",d+"label"),a.selectAll("g.cell text").data(c).text(this.d3_identity)},d3_calcType:function(a,b,c,d,e,f){var g=a.ticks?this.d3_linearLegend(a,c,e):a.invertExtent?this.d3_quantLegend(a,e,f):this.d3_ordinalLegend(a);return g.labels=this.d3_mergeLabels(g.labels,d),b&&(g.labels=this.d3_reverse(g.labels),g.data=this.d3_reverse(g.data)),g},d3_reverse:function(a){for(var b=[],c=0,d=a.length;d>c;c++)b[c]=a[d-c-1];return b},d3_placement:function(a,b,c,d,e,f){b.attr("transform",c),d.attr("transform",e),"horizontal"===a&&d.style("text-anchor",f)},d3_addEvents:function(a,b){var c=this;a.on("mouseover.legend",function(a){c.d3_cellOver(b,a,this)}).on("mouseout.legend",function(a){c.d3_cellOut(b,a,this)}).on("click.legend",function(a){c.d3_cellClick(b,a,this)})},d3_cellOver:function(a,b,c){a.cellover.call(c,b)},d3_cellOut:function(a,b,c){a.cellout.call(c,b)},d3_cellClick:function(a,b,c){a.cellclick.call(c,b)},d3_title:function(a,b,c,d){if(""!==c){a.append("text").attr("class",d+"legendTitle").text(c);var e=a.select("."+d+"legendTitle").map(function(a){return a[0].getBBox().height})[0],f=-b.map(function(a){return a[0].getBBox().x})[0];b.attr("transform","translate("+f+","+(e+10)+")")}}}},{}],3:[function(a,b,c){var d=a("./legend");b.exports=function(){function a(a){var s=d.d3_calcType(c,q,h,i,l,o),t=a.append("g").attr("class",j+"legendCells"),u=t.selectAll("."+j+"cell").data(s.data),v=u.enter().append("g",".cell").attr("class",j+"cell").style("opacity",1e-6);shapeEnter=v.append(e).attr("class",j+"swatch"),shapes=u.select("g."+j+"cell 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arguments.length?(m=+b,a):a},a.labelDelimiter=function(b){return arguments.length?(o=b,a):a},a.orient=function(b){return arguments.length?(b=b.toLowerCase(),("horizontal"==b||"vertical"==b)&&(p=b),a):a},a.ascending=function(b){return arguments.length?(q=!!b,a):a},a.classPrefix=function(b){return arguments.length?(j=b,a):a},a.title=function(b){return arguments.length?(k=b,a):a},d3.rebind(a,r,"on"),a}},{"./legend":2}],4:[function(a,b,c){var d=a("./legend");b.exports=function(){function a(a){var t=d.d3_calcType(b,r,i,j,m,p),u=a.append("g").attr("class",k+"legendCells"),v=u.selectAll("."+k+"cell").data(t.data),w=v.enter().append("g",".cell").attr("class",k+"cell").style("opacity",1e-6);shapeEnter=w.append(c).attr("class",k+"swatch"),shapes=v.select("g."+k+"cell "+c),d.d3_addEvents(w,s),v.exit().transition().style("opacity",0).remove(),d.d3_drawShapes(c,shapes,f,e,g,t.feature),d.d3_addText(u,w,t.labels,k);var x,y,z=v.select("text"),A=shapes[0].map(function(a){return a.getBBox()}),B=d3.max(A,function(a){return a.height}),C=d3.max(A,function(a){return a.width}),D="start"==n?0:"middle"==n?.5:1;"vertical"===q?(x=function(a,b){return"translate(0, "+b*(B+h)+")"},y=function(a,b){return"translate("+(C+o)+","+(A[b].y+A[b].height/2+5)+")"}):"horizontal"===q&&(x=function(a,b){return"translate("+b*(C+h)+",0)"},y=function(a,b){return"translate("+(A[b].width*D+A[b].x)+","+(B+o)+")"}),d.d3_placement(q,v,x,z,y,n),d.d3_title(a,u,l,k),v.transition().style("opacity",1)}var b=d3.scale.linear(),c="path",e=15,f=15,g=10,h=5,i=[5],j=[],k="",l="",m=d3.format(".01f"),n="middle",o=10,p="to",q="vertical",r=!1,s=d3.dispatch("cellover","cellout","cellclick");return a.scale=function(c){return arguments.length?(b=c,a):a},a.cells=function(b){return arguments.length?((b.length>1||b>=2)&&(i=b),a):a},a.shapePadding=function(b){return arguments.length?(h=+b,a):a},a.labels=function(b){return arguments.length?(j=b,a):a},a.labelAlign=function(b){return arguments.length?(("start"==b||"end"==b||"middle"==b)&&(n=b),a):a},a.labelFormat=function(b){return arguments.length?(m=b,a):a},a.labelOffset=function(b){return arguments.length?(o=+b,a):a},a.labelDelimiter=function(b){return arguments.length?(p=b,a):a},a.orient=function(b){return arguments.length?(b=b.toLowerCase(),("horizontal"==b||"vertical"==b)&&(q=b),a):a},a.ascending=function(b){return arguments.length?(r=!!b,a):a},a.classPrefix=function(b){return arguments.length?(k=b,a):a},a.title=function(b){return arguments.length?(l=b,a):a},d3.rebind(a,s,"on"),a}},{"./legend":2}],5:[function(a,b,c){d3.legend={color:a("./color"),size:a("./size"),symbol:a("./symbol")}},{"./color":1,"./size":3,"./symbol":4}]},{},[5]);

index.html

<!DOCTYPE html>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<style>


body {
    font-family: Helvetica, sans-serif;
    padding: 40px;
}

.countries {
    stroke: #fff;
    stroke-width: 1px;
}

.legendLinear text {
    font-size: 11px;
    fill: white;
}

.tooltip{ background-color:rgba(255,255,255,0.8);
          margin: 5px;
          padding: 5px;
          font-size: 13px;
        }



/*.country-label {
  fill: #777;
  fill-opacity: .5;
  font-size: 11px;
  font-weight: 300;
  text-anchor: middle;
}*/



</style>
<body>

    <h2>Current Malaria infant mortality rates in Africa</h2>
    <p>Per 1,000 live births</p>

    <p>Source: <a href="http://data.unicef.org/child-health/diarrhoealdiseases.html">UNICEF</a>. Data shown is most recent data for countries with data available.</p>

    <div id="vis"></div>

<script src="//d3js.org/d3.v3.min.js"></script>
<script src="//d3js.org/queue.v1.min.js"></script>
<script src="tooltip.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-alpha1/jquery.min.js"></script>
<script src="d3-legend.min.js"></script>
<script src="http://labratrevenge.com/d3-tip/javascripts/d3.tip.v0.6.3.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>

<script>

var width = 700,
    height = 600;

var svg = d3.select('#vis').append('svg')
    .attr('width', width)
    .attr('height', height)
    .style("background-color", "#3E446B");

var projection = d3.geo.mercator()
    .scale(380) // mess with this if you want
    .translate([width / 2.4, height / 1.9]);

var path = d3.geo.path()
    .projection(projection);

var colorScale = d3.scale.linear().range(["#FCE4C2", "#EB8A02"]).interpolate(d3.interpolateLab);

var countryById = d3.map();


// we use queue because we have 2 data files to load.
queue()
    .defer(d3.json, "africa.topojson")
    .defer(d3.csv, "my2013.csv", typeAndSet) // process
    .await(loaded);

function typeAndSet(d) {
    d.Malaria = +d.Malaria;
    countryById.set(d.ISO3, d); //where the id in my2013
    return d;
}

function getColor(d) {
    var dataRow = countryById.get(d.properties.iso_a3); //match id my2013 with countries id
    if (dataRow) {
        console.log("row", dataRow);
        return colorScale(dataRow.Malaria);
    } else {
        console.log("no dataRow", d);
        return "#ccc";
    }
}

function getText(d) {
 var dataRow = countryById.get(d.properties.iso_a3);
    if (dataRow) {
        console.log(dataRow);
        return "<strong>" + dataRow.country + "</strong><br> The malaria rate in 2013 was <strong>" + dataRow.Malaria + "</strong>";
    } else {
        console.log("no dataRow", d);
        return "<strong>" + d.properties.name + "</strong><br> No data";
    }
}

function loaded(error, countries, illness) {

    console.log("countries", countries);
    console.log("illness", illness);

    colorScale.domain(d3.extent(illness, function(d) {return d.Malaria;}));

    var world = topojson.feature(countries, countries.objects.collection).features;

    svg.selectAll('path.countries')
        .data(world)
        .enter()
        .append('path')
        .attr('class', 'countries')
        .attr('d', path)
        .attr('fill', function(d,i) {
            /*console.log(d.properties.name);*/
            return getColor(d);
        })
        /*.append("title")
        .text(function(d) {
            return getText(d);
        });*/
        .call(d3.helper.tooltip(
        function(d, i){
          return getText(d);
        }
        )); //tooltip based in an example from Roger Veciana: http://bl.ocks.org/rveciana/5181105


    var linear = colorScale;

    svg.append("g")
      .attr("class", "legendLinear")
      .attr("transform", "translate(20,20)");

    var legendLinear = d3.legend.color()
      .shapeWidth(30)
      .orient('vertical')
      .scale(linear);

    svg.select(".legendLinear")
      .call(legendLinear);


}

</script>
</body>
</html>

my2013.csv

tooltip.js

d3.helper = {};

d3.helper.tooltip = function(accessor){
    return function(selection){
        var tooltipDiv;
        var bodyNode = d3.select('body').node();
        selection.on("mouseover", function(d, i){
            // Clean up lost tooltips
            d3.select('body').selectAll('div.tooltip').remove();
            // Append tooltip
            tooltipDiv = d3.select('body').append('div').attr('class', 'tooltip');
            var absoluteMousePos = d3.mouse(bodyNode);
            tooltipDiv.style('left', (absoluteMousePos[0] + 10)+'px')
                .style('top', (absoluteMousePos[1] - 15)+'px')
                .style('position', 'absolute')
                .style('z-index', 1001);
            // Add text using the accessor function
            var tooltipText = accessor(d, i) || '';
            // Crop text arbitrarily
            //tooltipDiv.style('width', function(d, i){return (tooltipText.length > 80) ? '300px' : null;})
            //    .html(tooltipText);
        })
        .on('mousemove', function(d, i) {
            // Move tooltip
            var absoluteMousePos = d3.mouse(bodyNode);
            tooltipDiv.style('left', (absoluteMousePos[0] + 10)+'px')
                .style('top', (absoluteMousePos[1] - 15)+'px');
            var tooltipText = accessor(d, i) || '';
            tooltipDiv.html(tooltipText);
        })
        .on("mouseout", function(d, i){
            // Remove tooltip
            tooltipDiv.remove();
        });

    };
};