我試圖改變這個例子http://bl.ocks.org/1153292改圈樣式力指向內置d3.js.如何使用d3.js
我想根據自己在JSON類型爲界創建類。 我將需要使用CSS,但我不知道如何更改代碼以應用它。
這是代碼我迄今修改....
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>Mobile Patent Suits</title>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?1.29.1"></script>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.geom.js?1.29.1"></script>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js?1.29.1"></script>
<style type="text/css">
circle {
fill: #ccc;
stroke: #333;
stroke-width: 1.5px;
}
text {
font: 10px sans-serif;
pointer-events: none;
}
text.shadow {
stroke: #fff;
stroke-width: 3px;
stroke-opacity: .8;
}
</style>
</head>
<body>
<script type="text/javascript">
// http://blog.thomsonreuters.com/index.php/mobile-patent-suits-graphic-of-the-day/
var links = [
{source: "t1", target: "hate", type: "green"},
{source: "t1", target: "good", type: "green"},
{source: "t2", target: "hate", type: "green"},
{source: "t3", target: "good", type: "green"},
{source: "t4", target: "good", type: "green"},
{source: "hate", target: "airport", type: "yellow"},
{source: "good", target: "airport", type: "yellow"},
{source: "good", target: "flight", type: "yellow"},
];
var nodes = {};
// Compute the distinct nodes from the links.
links.forEach(function(link) {
link.source = nodes[link.source] || (nodes[link.source] = {name: link.source});
link.target = nodes[link.target] || (nodes[link.target] = {name: link.target});
});
var w = 960,
h = 500;
var force = d3.layout.force()
.nodes(d3.values(nodes))
.links(links)
.size([w, h])
.linkDistance(60)
.charge(-300)
.on("tick", tick)
.start();
var svg = d3.select("body").append("svg:svg")
.attr("width", w)
.attr("height", h);
var path = svg.append("svg:g").selectAll("path")
.data(force.links())
.enter().append("svg:path")
.attr("class", function(d) { return "link " + d.type; })
.attr("marker-end", function(d) { return "url(#" + d.type + ")"; });
var circle = svg.append("svg:g").selectAll("circle")
.data(force.nodes())
.enter().append("svg:circle")
.attr("r", 6)
.call(force.drag);
var text = svg.append("svg:g").selectAll("g")
.data(force.nodes())
.enter().append("svg:g");
// A copy of the text with a thick white stroke for legibility.
text.append("svg:text")
.attr("x", 8)
.attr("y", ".31em")
.attr("class", "shadow")
.text(function(d) { return d.name; });
text.append("svg:text")
.attr("x", 8)
.attr("y", ".31em")
.text(function(d) { return d.name; });
// Use elliptical arc path segments to doubly-encode directionality.
function tick() {
path.attr("d", function(d) {
var dx = d.target.x - d.source.x,
dy = d.target.y - d.source.y,
dr = Math.sqrt(dx * dx + dy * dy);
return "M" + d.source.x + "," + d.source.y + "A" + dr + "," + dr + " 0 0,1 " + d.target.x + "," + d.target.y;
});
circle.attr("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")";
});
text.attr("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")";
});
}
</script>
</body>
</html>
任何人可以給我一個提示? 感謝
你的意思是在JSON哪些類型?只有鏈接的類型,而不是節點! – Sirko
我會嘗試使用那個來定義節點樣式。這意味着將需要一個新的JSON節點屬性... 我是新的D3,我完全失去了......好的感謝您的關注。 – Devester