niallmackenzie/index.html

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

    .municipality {
        fill: #ccc;
    }

    .bubble {
        fill: #7BB300;
        fill-opacity: .5;
        stroke: #fff;
        stroke-width: .5px;
    }

    .bubble :hover {
        stroke: #000;
    }

    .legend circle {
        fill: none;
        stroke: #ccc;
    }

    .legend text {
        fill: #777;
        font: 10px sans-serif;
        text-anchor: middle;
    }

    .mesh {
        fill: none;
        stroke: #fff;
        stroke-width: .5px;
        stroke-linejoin: round;
    }

    .county-boundary {
        fill: none;
        stroke: #fff;
        stroke-width: 2.5px;
        pointer-events: none;
    }

</style>
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script>
<script>

    var width = 960,
        height = 500;

    var projection = d3.geo.mercator()

    var formatNumber = d3.format(",.0f");

    var radius = d3.scale.sqrt()
                .domain([0, 5e5])
                .range([0, 50]);

    // Create a path generator
    var path = d3.geo.path()
            .projection(projection);

    var svg = d3.select("body").append("svg")
            .attr("width", width)
            .attr("height", height);

    var legend = svg.append("g")
            .attr("class", "legend")
            .attr("transform", "translate(" + (width - 100) + "," + (height - 20) + ")")
            .selectAll("g")
            .data([1e4, 1e5, 5e5])
            .enter().append("g");

    legend.append("circle")
            .attr("cy", function(d) { return -radius(d); })
            .attr("r", radius);

    legend.append("text")
            .attr("y", function(d) { return -2 * radius(d); })
            .attr("dy", "1.3em")
            .text(d3.format(".1s"));

    d3.json("swePop.json", function(error, swePop) {
        if (error) throw error;

        var komms = topojson.feature(swePop, swePop.objects.swePop),
            jkKom = komms.features.filter(function(d) { return d.properties.KnKod == '0665'; })[0];

        // Create a unit projection
        projection
                .scale(1)
                .translate([0, 0]);

        // Compute the bounds of a feature of interest, then derive scale & translate
        var b = path.bounds(jkKom),
        // The first (boundary percetage) value is a great cheat to control the zoom
                s = .1 / Math.max((b[1][0] - b[0][0]) / width, (b[1][1] - b[0][1]) / height),
                t = [(width - s * (b[1][0] + b[0][0])) / 2, (height - s * (b[1][1] + b[0][1])) / 2];

        // Update the projection to use computed scale & translate
        projection
                .scale(s)
                .translate(t);

        svg.append("g")
                .attr("class", "municipality")
                .selectAll("path")
                .data(topojson.feature(swePop, swePop.objects.swePop).features)
                .enter().append("path")
                .attr("d", path)
                .append("title");
                //.text(function(d) { return d.properties.KnNamn; });

        svg.append("path")
                .datum(topojson.mesh(swePop, swePop.objects.swePop, function(a, b) { return a !== b; }))
                .attr("class", "mesh")
                .attr("d", path);

        svg.append("path")
                .datum(topojson.mesh(swePop, swePop.objects.swePop, function(a, b) { return a.properties.LnKod !== b.properties.LnKod; }))
                .attr("class", "county-boundary")
                .attr("d", path);

        svg.append("g")
                .attr("class", "bubble")
                .selectAll("circle")
                .data(topojson.feature(swePop, swePop.objects.swePop).features
                .sort(function(a, b) { return b.properties.swePop - a.properties.swePop; }))
                .enter().append("circle")
                .attr("transform", function(d) { return "translate(" + path.centroid(d) + ")"; })
                .attr("r", function(d) { return radius(d.properties.population); })
                .append("title")
                .text(function(d) {
                    return d.properties.KnNamn
                    + "\nPopulation " + formatNumber(d.properties.population);
                });

    });

    d3.select(self.frameElement).style("height", height + "px");

</script>

## swePop.json

      
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Display the rendered blob

    
    Raw
  

              swePop.json
            
          
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## thumbnail.png

      
    Raw
  

              thumbnail.png
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	.municipality {
	fill: #ccc;
	}

	.bubble {
	fill: #7BB300;
	fill-opacity: .5;
	stroke: #fff;
	stroke-width: .5px;
	}

	.bubble :hover {
	stroke: #000;
	}

	.legend circle {
	fill: none;
	stroke: #ccc;
	}

	.legend text {
	fill: #777;
	font: 10px sans-serif;
	text-anchor: middle;
	}

	.mesh {
	fill: none;
	stroke: #fff;
	stroke-width: .5px;
	stroke-linejoin: round;
	}

	.county-boundary {
	fill: none;
	stroke: #fff;
	stroke-width: 2.5px;
	pointer-events: none;
	}

	</style>
	<body>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script>
	<script>

	var width = 960,
	height = 500;

	var projection = d3.geo.mercator()

	var formatNumber = d3.format(",.0f");

	var radius = d3.scale.sqrt()
	.domain([0, 5e5])
	.range([0, 50]);

	// Create a path generator
	var path = d3.geo.path()
	.projection(projection);

	var svg = d3.select("body").append("svg")
	.attr("width", width)
	.attr("height", height);

	var legend = svg.append("g")
	.attr("class", "legend")
	.attr("transform", "translate(" + (width - 100) + "," + (height - 20) + ")")
	.selectAll("g")
	.data([1e4, 1e5, 5e5])
	.enter().append("g");

	legend.append("circle")
	.attr("cy", function(d) { return -radius(d); })
	.attr("r", radius);

	legend.append("text")
	.attr("y", function(d) { return -2 * radius(d); })
	.attr("dy", "1.3em")
	.text(d3.format(".1s"));

	d3.json("swePop.json", function(error, swePop) {
	if (error) throw error;

	var komms = topojson.feature(swePop, swePop.objects.swePop),
	jkKom = komms.features.filter(function(d) { return d.properties.KnKod == '0665'; })[0];

	// Create a unit projection
	projection
	.scale(1)
	.translate([0, 0]);

	// Compute the bounds of a feature of interest, then derive scale & translate
	var b = path.bounds(jkKom),
	// The first (boundary percetage) value is a great cheat to control the zoom
	s = .1 / Math.max((b[1][0] - b[0][0]) / width, (b[1][1] - b[0][1]) / height),
	t = [(width - s * (b[1][0] + b[0][0])) / 2, (height - s * (b[1][1] + b[0][1])) / 2];

	// Update the projection to use computed scale & translate
	projection
	.scale(s)
	.translate(t);

	svg.append("g")
	.attr("class", "municipality")
	.selectAll("path")
	.data(topojson.feature(swePop, swePop.objects.swePop).features)
	.enter().append("path")
	.attr("d", path)
	.append("title");
	//.text(function(d) { return d.properties.KnNamn; });

	svg.append("path")
	.datum(topojson.mesh(swePop, swePop.objects.swePop, function(a, b) { return a !== b; }))
	.attr("class", "mesh")
	.attr("d", path);

	svg.append("path")
	.datum(topojson.mesh(swePop, swePop.objects.swePop, function(a, b) { return a.properties.LnKod !== b.properties.LnKod; }))
	.attr("class", "county-boundary")
	.attr("d", path);

	svg.append("g")
	.attr("class", "bubble")
	.selectAll("circle")
	.data(topojson.feature(swePop, swePop.objects.swePop).features
	.sort(function(a, b) { return b.properties.swePop - a.properties.swePop; }))
	.enter().append("circle")
	.attr("transform", function(d) { return "translate(" + path.centroid(d) + ")"; })
	.attr("r", function(d) { return radius(d.properties.population); })
	.append("title")
	.text(function(d) {
	return d.properties.KnNamn
	+ "\nPopulation " + formatNumber(d.properties.population);
	});

	});

	d3.select(self.frameElement).style("height", height + "px");

	</script>