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d3sparql-piechart.html
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d3sparql-piechart.html
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<!DOCTYPE html>
<meta charset="utf-8">
<html>
<head>
<link rel="stylesheet" type="text/css" href="lib/bootstrap/css/bootstrap.css"/>
<script src="lib/d3/d3.v3.min.js"></script>
<script src="d3sparql.js"></script>
<script>
function exec() {
var endpoint = d3.select("#endpoint").property("value")
var sparql = d3.select("#sparql").property("value")
d3sparql.query(endpoint, sparql, render)
}
function render(json) {
var config = {
"label": "pref",
"size": "area",
"width": 600, // canvas width
"height": 600, // canvas height
"margin": 10, // canvas margin
"hole": 200, // doughnut hole: 0 for pie, r > 0 for doughnut
"selector": "#result"
}
d3sparql.piechart(json, config)
}
function exec_offline() {
d3.json("cache/dbpedia/area-ja.json", render)
}
function toggle() {
d3sparql.toggle()
}
</script>
<style>
.label {
font: 10px sans-serif;
}
</style>
</head>
<body>
<div id="query" style="margin: 10px">
<h1>d3piechart</h1>
<form class="form-inline">
<label>SPARQL endpoint:</label>
<div class="input-append">
<input id="endpoint" class="span5" value="http://dbpedia.org/sparql" type="text">
<button class="btn" type="button" onclick="exec()">Query</button>
<button class="btn" type="button" onclick="exec_offline()">Use cache</button>
<button class="btn" type="button" onclick="toggle()"><i id="button" class="icon-chevron-up"></i></button>
</div>
</form>
<textarea id="sparql" class="span9" rows=15>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX yago: <http://dbpedia.org/class/yago/>
PREFIX dbpedia-owl: <http://dbpedia.org/ontology/>
SELECT ?pref ?area
WHERE {
?s a yago:WikicatPrefecturesOfJapan ;
rdfs:label ?pref ;
dbpedia-owl:areaTotal ?area_total .
FILTER (lang(?pref) = 'en')
BIND ((?area_total / 1000 / 1000) AS ?area)
}
ORDER BY DESC(?area)
</textarea>
</div>
<div id="result"></div>
</body>
</html>