<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
width: 960px;
height: 500px;
position: relative;
}
/* stylesheet for your custom graph */
.states {
fill: none;
stroke: #fff;
stroke-linejoin: round;
}
.states-choropleth {
fill: #ccc;
}
#tooltip-container {
position: absolute;
background-color: #fff;
color: #000;
padding: 10px;
border: 1px solid;
display: none;
}
.tooltip_key {
font-weight: bold;
}
.tooltip_value {
margin-left: 20px;
float: right;
}
</style>
<div id="tooltip-container"></div>
<div id="canvas-svg"></div>
<script type="text/javascript" src="trips.json"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/topojson/1.1.0/topojson.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(e) {
$.getJSON( "trips.json" , function( result ){
alert(jsonObject.results.count);
});
});
</script>
<script>
d3.csv("population.csv", function(err, data) {
var config = {"color1":"#d3e5ff","color2":"#08306B","stateDataColumn":"state_or_territory","valueDataColumn":"population_estimate_for_july_1_2013_number"}
var WIDTH = 800, HEIGHT = 500;
var COLOR_COUNTS = 9;
var SCALE = 0.7;
function Interpolate(start, end, steps, count) {
var s = start,
e = end,
final = s + (((e - s) / steps) * count);
return Math.floor(final);
}
function Color(_r, _g, _b) {
var r, g, b;
var setColors = function(_r, _g, _b) {
r = _r;
g = _g;
b = _b;
};
setColors(_r, _g, _b);
this.getColors = function() {
var colors = {
r: r,
g: g,
b: b
};
return colors;
};
}
function hexToRgb(hex) {
var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
return result ? {
r: parseInt(result[1], 16),
g: parseInt(result[2], 16),
b: parseInt(result[3], 16)
} : null;
}
function valueFormat(d) {
if (d > 1000000000) {
return Math.round(d / 1000000000 * 10) / 10 + "B";
} else if (d > 1000000) {
return Math.round(d / 1000000 * 10) / 10 + "M";
} else if (d > 1000) {
return Math.round(d / 1000 * 10) / 10 + "K";
} else {
return d;
}
}
var COLOR_FIRST = config.color1, COLOR_LAST = config.color2;
var rgb = hexToRgb(COLOR_FIRST);
var COLOR_START = new Color(rgb.r, rgb.g, rgb.b);
rgb = hexToRgb(COLOR_LAST);
var COLOR_END = new Color(rgb.r, rgb.g, rgb.b);
var MAP_STATE = config.stateDataColumn;
var MAP_VALUE = config.valueDataColumn;
var width = WIDTH,
height = HEIGHT;
var valueById = d3.map();
var startColors = COLOR_START.getColors(),
endColors = COLOR_END.getColors();
var colors = [];
for (var i = 0; i < COLOR_COUNTS; i++) {
var r = Interpolate(startColors.r, endColors.r, COLOR_COUNTS, i);
var g = Interpolate(startColors.g, endColors.g, COLOR_COUNTS, i);
var b = Interpolate(startColors.b, endColors.b, COLOR_COUNTS, i);
colors.push(new Color(r, g, b));
}
var quantize = d3.scale.quantize()
.domain([0, 1.0])
.range(d3.range(COLOR_COUNTS).map(function(i) { return i }));
var path = d3.geo.path();
var svg = d3.select("#canvas-svg").append("svg")
.attr("width", width)
.attr("height", height);
d3.tsv("https://s3-us-west-2.amazonaws.com/vida-public/geo/us-state-names.tsv", function(error, names) {
name_id_map = {};
id_name_map = {};
for (var i = 0; i < names.length; i++) {
name_id_map[names[i].name] = names[i].id;
id_name_map[names[i].id] = names[i].name;
}
data.forEach(function(d) {
var id = name_id_map[d[MAP_STATE]];
valueById.set(id, +d[MAP_VALUE]);
});
quantize.domain([d3.min(data, function(d){ return +d[MAP_VALUE] }),
d3.max(data, function(d){ return +d[MAP_VALUE] })]);
d3.json("https://s3-us-west-2.amazonaws.com/vida-public/geo/us.json", function(error, us) {
svg.append("g")
.attr("class", "states-choropleth")
.selectAll("path")
.data(topojson.feature(us, us.objects.states).features)
.enter().append("path")
.attr("transform", "scale(" + SCALE + ")")
.style("fill", function(d) {
if (valueById.get(d.id)) {
var i = quantize(valueById.get(d.id));
var color = colors[i].getColors();
return "rgb(" + color.r + "," + color.g +
"," + color.b + ")";
} else {
return "";
}
})
.attr("d", path)
.on("mousemove", function(d) {
var html = "";
html += "<div class=\"tooltip_kv\">";
html += "<span class=\"tooltip_key\">";
html += id_name_map[d.id];
html += "</span>";
html += "<span class=\"tooltip_value\">";
html += (valueById.get(d.id) ? valueFormat(valueById.get(d.id)) : "");
html += "";
html += "</span>";
html += "</div>";
$("#tooltip-container").html(html);
$(this).attr("fill-opacity", "0.8");
$("#tooltip-container").show();
var coordinates = d3.mouse(this);
var map_width = $('.states-choropleth')[0].getBoundingClientRect().width;
if (d3.event.layerX < map_width / 2) {
d3.select("#tooltip-container")
.style("top", (d3.event.layerY + 15) + "px")
.style("left", (d3.event.layerX + 15) + "px");
} else {
var tooltip_width = $("#tooltip-container").width();
d3.select("#tooltip-container")
.style("top", (d3.event.layerY + 15) + "px")
.style("left", (d3.event.layerX - tooltip_width - 30) + "px");
}
})
.on("mouseout", function() {
$(this).attr("fill-opacity", "1.0");
$("#tooltip-container").hide();
});
svg.append("path")
.datum(topojson.mesh(us, us.objects.states, function(a, b) { return a !== b; }))
.attr("class", "states")
.attr("transform", "scale(" + SCALE + ")")
.attr("d", path);
});
});
});
</script>