Slices of Pi

joshuamil

Dec 2nd, 2011

234

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<cfsetting requesttimeout=" 6000000">
<cfscript>
function getPi(){
var _http = new http();
_http.setMethod("get");
_http.setUrl('http://newton.ex.ac.uk/research/qsystems/collabs/pi/pi6.txt');
var _txt = _http.send().getPrefix();
return Left(ReReplace(_txt.filecontent,"[^0-9\.]","","ALL"),1000000);
}
function setQuery(p){
var q = QueryNew("number");
for(var i=1;i<=Len(p);i++){
if(Mid(p,i,1)!="."){
QueryAddRow(q);
QuerySetCell(q,"number",Mid(p,i,1));
}
}
var qoq = new Query(sql="SELECT number,COUNT(number) AS instance FROM q GROUP BY number",dbtype="query");
qoq.setAttributes(q = q);
return qoq.execute().getResult();
}
q = setQuery(getPi());
</cfscript>
<cfoutput><html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Name');
data.addColumn('number', 'Instances');
data.addRows(#q.RecordCount#);
<cfloop query="q">
data.setValue(#val(q.currentRow-1)#, 0, '#number#');
data.setValue(#val(q.currentRow-1)#, 1, #val(((instance/1000000)*100))#);
</cfloop>
var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(data,
{
width: 800
,height: 600
,chartArea: {width:'800',height:'500',left:'0',top:'10'}
,pieSliceText:'value'
}
);
}
</script>
</head>
<body>
<h1>Pi by the Slice</h1>Each slice represents the instances of a number in Pi up to 1,000,000 places.
<div id="chart_div"></div>
</body>
</html></cfoutput>

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