how to change code of d3.js pie chart in .js file
Question
I am new in d3.js. I am trying to make a simle pie chart program. I made a seperated pie.js file in which I wrote pie chart code. I linked that to html file chart.html. Its works !
problem : I want to change pie chart value through manually in chart.html page. Like when pir chart load in html file i want to modify value just before that.
Can any body suggest me what should I need to do?
chart.html <html lang="en"> <head> <meta charset="utf-8"> <title>D3: Pie layout</title> <script type="text/javascript" src="http://d3js.org/d3.v3.min.js"></script> <script type="text/javascript" src="lib/pie.js"></script> </head> <body></body> </html>
pie.js `
//Width and height
var w = 300;
var h = 300;
var dataset = [ 5, 10, 20, 45, 6, 25 ];
var outerRadius = w / 2;
var innerRadius = 0;
var arc = d3.svg.arc()
.innerRadius(innerRadius)
.outerRadius(outerRadius);
var pie = d3.layout.pie();
//Easy colors accessible via a 10-step ordinal scale
var color = d3.scale.category10();
//Create SVG element
var svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
//Set up groups
var arcs = svg.selectAll("g.arc")
.data(pie(dataset))
.enter()
.append("g")
.attr("class", "arc")
.attr("transform", "translate(" + outerRadius + "," + outerRadius + ")");
//Draw arc paths
arcs.append("path")
.attr("fill", function(d, i) {
return color(i);
})
.attr("d", arc);
//Labels
arcs.append("text")
.attr("transform", function(d) {
return "translate(" + arc.centroid(d) + ")";
})
.attr("text-anchor", "middle")
.text(function(d) {
return d.value;
});
`
2 answers
solution1
1 ACCPTED 2014-12-20 12:39:32
It is easy. just put the dataset before the file load.it will work.
<script> dataset=[1,2,3,4];</script> <script> your link <script>
solution2
1 2014-12-20 12:50:55
<html lang="en">
<head>
<meta charset="utf-8">
<title>D3: Pie layout</title>
<script type="text/javascript" src="http://d3js.org/d3.v3.min.js"></script>
<script>dataset = [1, 2, 3, 4, 5];</script>
</head>
<body>
<script type="text/javascript" src="lib/pie.js"></script>
</body>
</html>
and Remove var dataset = [ 5, 10, 20, 45, 6, 25 ]; from the file.
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