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23_countries.js
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23_countries.js
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/*global d3 */
var indexOfProp = function(data, prop, val) {
return data.map(function(o) { return o[prop]; }).indexOf(val);
};
var buildChart = function(data) {
var width = 120;
var height = 160;
data.forEach(function(data) {
d3.json("assets/countries/" + data.country_code + ".geo.json", function(geo) {
var projection = d3.geo.mercator()
.scale(1)
.translate([ 0, 0 ]);
// auto scale using path
var path = d3.geo.path().projection(projection);
var bounds = path.bounds(geo);
var scale = 0.98 / Math.max(
(bounds[1][0] - bounds[0][0]) / width,
(bounds[1][1] - bounds[0][1]) / height
);
var translate = [
(width - scale * (bounds[1][0] + bounds[0][0])) / 2,
(height - scale * (bounds[1][1] + bounds[0][1])) / 2
];
// update projection
projection.scale(scale).translate(translate);
// draw map
var svg = d3.select("body")
.append("svg")
.attr("class", data.country_code)
.attr("width", width)
.attr("height", height);
svg.append("path")
.datum(geo)
.attr("d", d3.geo.path().projection(projection));
svg.append("text")
.text(data.country);
});
});
};
var prepareData = function(data, callback) {
d3.json("assets/countries/all.json", function(countries) {
data = data.map(function(object) {
var newObject = {};
var key;
for (key in object) {
if (object.hasOwnProperty(key)) {
if (key === "lat" || key === "long") {
newObject[key] = +object[key].value;
}
else {
newObject[key] = object[key].value;
}
}
}
return newObject;
});
data = data.reduce(function(memo, object) {
var index = indexOfProp(memo, "label", object.label);
if (index < 0) {
var focusCount = {};
focusCount[object.tech_focus] = 1;
delete object.tech_focus;
object.focus_count = focusCount;
object.activity_label = [ object.activity_label ];
object.tech_method = [ object.tech_method ];
memo.push(object);
}
else {
var targetObject = memo[index];
// only count focus_count using distinct! tech_method
if (targetObject.focus_count[object.tech_focus]) {
targetObject.focus_count[object.tech_focus]++;
}
else {
targetObject.focus_count[object.tech_focus] = 1;
}
if (targetObject.activity_label.indexOf(object.activity_label) < 0) {
targetObject.activity_label.push(object.activity_label);
}
if (targetObject.tech_method.indexOf(object.tech_method) < 0) {
targetObject.tech_method.push(object.tech_method);
}
memo[index] = targetObject;
}
return memo;
}, []);
data = data
.map(function(object) {
var index = indexOfProp(countries, "name", object.country);
if (index > 0) {
object.country_code = countries[index]["alpha-3"];
}
else {
console.log("no coded for " + object.country);
}
return object;
})
.reduce(function(memo, object) {
var index = indexOfProp(memo, "country", object.country);
if (index < 0) {
memo.push(object);
}
return memo;
}, []);
callback(data);
});
};
// example data
// "org": "http://data.digitalsocial.eu/id/organization/faaefa6f-4696-1514-c54d-5d7f0499fb89",
// "label": "Swirrl",
// "long": -2.234564,
// "lat": 53.481895,
// "country": "United Kingdom",
// "city": "Manchester",
// "org_type": "http://data.digitalsocial.eu/def/concept/organization-type/business",
// "activity_label": [
// "Digital Social Innovation ",
// "OpenDataCommunities",
// "Hampshire Linked Data",
// "Smart Journey"
// ],
// "tech_method": [
// "big data",
// "open data",
// "crowdfunding",
// "crowdmapping",
// "crowdsourcing",
// "online learning models and MOOCS",
// "social networks",
// "3D printing",
// "open source",
// "social media"
// ],
// "focus_count": {
// "Open Networks": 8,
// "Open Data": 17,
// "Open Knowledge": 12,
// "Open Hardware": 8
// }
d3.json("03_data.json", function(data) {
prepareData(data, buildChart);
});