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我已經使用JS庫Raphael創建餅圖。我想爲每個扇區分配一些文本,以便當您將鼠標懸停在特定部分上時,可以在圓圈中間顯示文本。所以首先,我需要選擇一個圓的特定部分,並將其分配爲一個變量並向其添加文本。任何人都可以幫我弄清楚如何選擇圈子中的第一部分?Raphael JS PieChart選擇部分
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>g·Raphaël Dynamic Pie Chart</title>
<link rel="stylesheet" href="demo.css" media="screen">
<link rel="stylesheet" href="demo-print.css" media="print">
<script src="raphael.js"></script>
<script src="g.raphael.js"></script>
<script src="g.pie.js"></script>
<style type="text/css">
body {
background: #fff;
font: 100.01% "Fontin Sans", Fontin-Sans, "Myriad Pro", "Lucida Grande", "Lucida Sans Unicode", Lucida, Verdana, Helvetica, sans-serif;
color: #000;
margin: 10px 0 0 0;
padding: 0;
text-align: center;
}
#holder {
margin: 0 auto;
width: 640px;
height: 480px;
}
p {
text-align: left;
margin: .5em 2em;
}
</style>
<script>
//BUG FOUND if the user scrolls over where the original sector would be and keeps going in and out of the original region
//the sector keeps getting bigger and bigger....it is tougher to do with a smaller animation time
window.onload = function() {
//creates raphael canvas located at the specified id
var r = Raphael("holder"),
//creates piechart in raphael (x, y, radius) [ amounts which are distributed according to sum ] ??legend?? ??href??
pie = r.piechart(320, 240, 100, [70,20,5,5], { legend: ["%%.%% - Enterprise Users", "IE Users"], legendpos: "southeast", href: ["http://raphaeljs.com", "http://g.raphaeljs.com"]});
//inner circle
innner = r.circle(320,240, 60).attr("fill", "red");
//invisible circle for text
innertext = r.circle(320,240,60).attr({"fill-opacity":"0"});
//writes text at specified location
r.text(320, 100, "Interactive Pie Chart").attr({ font: "20px sans-serif" });
pie.hover(function() {
//if the user tries hovering over while the animation is finishing up in the specified time for the
//animation to last the user will not get the desired effect. this says that the animation is over
//once the function is called again
this.sector.stop();
//describes how big the sector will be when hovered over
this.sector.scale(1.1, 1.1, this.cx, this.cy);
//does the same as above telling the legends to stop and what to do during animation
if (this.label) {
this.label[0].stop();
this.label[0].attr({ r: 7.5 });
this.label[1].attr({ "font-weight": 800 });
}
}, function() {
//tells the selected sector to animate at the given speed and animation type
this.sector.animate({ transform: 's1 1 ' + this.cx + ' ' + this.cy }, 500, "bounce");
//creates the labesls in the legend and describes how they will be animated
if (this.label) {
this.label[0].animate({ r: 5 }, 500, "linear");
this.label[1].attr({ "font-weight": 400 });
}
});
};
</script>
</head>
<body class="raphael" id="g.raphael.dmitry.baranovskiy.com">
<div id="holder"></div>
<p>
Pie chart with legend, hyperlinks on two first sectors and hover effect.
</p>
</body>
</html>
作爲一個方面說明,我強烈建議切換到一個真正的JS圖表庫,如Highcharts,它實際上有文檔。 – Don 2012-07-27 17:12:21
拉斐爾是一個真正的圖表庫!不要撕裂它! – 2012-07-27 18:37:26
對不起,我的意思是gRaphael – Don 2012-07-27 19:09:34