我試圖用Travis Palmer重新制作一支筆(http://codepen.io/anon/pen/JgyCz),以便我可以在多個元素上使用它。我們正試圖在頁面上放置幾個<div class="donut" data-donut="x">
。將靜態代碼轉換爲可重複使用的D3.js餅圖動畫
因此,這將類似於HTML如下:
////// HTML
<div class="donut" data-donut="22"></div>
<div class="donut" data-donut="48"></div>
<div class="donut" data-donut="75></div>
我想轉換爲可重複使用的compunent的D3.js/jQuery的例子如下。 (要查看完整的工作示例去這個鏈接 - http://codepen.io/anon/pen/JgyCz)
////// D3.js
var duration = 500,
transition = 200;
drawDonutChart(
'.donut',
$('.donut').data('donut'),
290,
290,
".35em"
);
function drawDonutChart(element, percent, width, height, text_y) {
width = typeof width !== 'undefined' ? width : 290;
height = typeof height !== 'undefined' ? height : 290;
text_y = typeof text_y !== 'undefined' ? text_y : "-.10em";
var dataset = {
lower: calcPercent(0),
upper: calcPercent(percent)
},
radius = Math.min(width, height)/2,
pie = d3.layout.pie().sort(null),
format = d3.format(".0%");
var arc = d3.svg.arc()
.innerRadius(radius - 20)
.outerRadius(radius);
var svg = d3.select(element).append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width/2 + "," + height/2 + ")");
var path = svg.selectAll("path")
.data(pie(dataset.lower))
.enter().append("path")
.attr("class", function(d, i) { return "color" + i })
.attr("d", arc)
.each(function(d) { this._current = d; }); // store the initial values
var text = svg.append("text")
.attr("text-anchor", "middle")
.attr("dy", text_y);
if (typeof(percent) === "string") {
text.text(percent);
}
else {
var progress = 0;
var timeout = setTimeout(function() {
clearTimeout(timeout);
path = path.data(pie(dataset.upper)); // update the data
path.transition().duration(duration).attrTween("d", function (a) {
// Store the displayed angles in _current.
// Then, interpolate from _current to the new angles.
// During the transition, _current is updated in-place by d3.interpolate.
var i = d3.interpolate(this._current, a);
var i2 = d3.interpolate(progress, percent)
this._current = i(0);
return function(t) {
text.text(format(i2(t)/100));
return arc(i(t));
};
}); // redraw the arcs
}, 200);
}
};
function calcPercent(percent) {
return [percent, 100-percent];
};
我很感謝您的迴應,但Angular和nvd3都有點爲我的目的。我們依賴太多的框架等等。更糟糕的情況下,我可以克隆代碼,只是改變名稱。 –