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我想正確包裝我的氣泡圖項目(我改變了尺寸,這要感謝我的JSON值.attr("r", function(d) { return d.size; }))
,如果我有很多氣泡,它們會重疊。碼頭上的.pack()方法,但我不使用正確的話,我不知道如何使用它根據圓圈大小包裝氣泡圖
<!DOCTYPE html>
<meta charset="utf-8">
<style>
text {
font: 10px sans-serif;
}
</style>
<body>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script>
var diameter = 960,
format = d3.format(",d"),
color = d3.scale.category20c();
var bubble = d3.layout.pack()
.sort(null)
.size([diameter, diameter])
.padding(1.5);
var svg = d3.select("body").append("svg")
.attr("width", diameter)
.attr("height", diameter)
.attr("class", "bubble");
d3.json("./data.json", function(error, root) {
if (error) throw error;
var node = svg.selectAll(".node")
.data(bubble.nodes(classes(root))
.filter(function(d) { return !d.children; }))
.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
node.append("title")
.text(function(d) { return d.className + ": " + format(d.value); });
node.append("circle")
.attr("r", function(d) { return d.size; })
.style("fill", function(d) { return color(d.size); });
node.append("text")
.attr("dy", ".3em")
.style("text-anchor", "middle")
.text(function(d) { return d.className.substring(0, d.r/3); });
});
// Returns a flattened hierarchy containing all leaf nodes under the root.
function classes(root) {
var classes = [];
function recurse(name, node) {
if (node.children) node.children.forEach(function(child) { recurse(node.name, child); });
else classes.push({packageName: name, className: node.name, value: node.size, size: node.size});
}
recurse(null, root);
return {children: classes};
}
d3.select(self.frameElement).style("height", diameter + "px");
</script>
</body>
這是項目Plunker:https://plnkr.co/edit/PjN6v3dr2yP3oST5sCTB?p=preview
氣泡包知道的大小將它傳遞到在遞歸函數的值:值:node.size – thatOneGuy
好的,謝謝它的作品! '.attr(「r」,function(d){return dr;})'在原始示例中,所以我不明白屬性是什麼:'.value(function(d){console.log(d .size); return d.size;})' – Anonyme