我的 D3 布局会根据按钮单击动态更新。当我尝试单击按钮更新 SVG 时,它总是在旧 svg 下方创建一个新的 SVG。
当我单击按钮时,它会继续在旧 SVG 下方添加新的 SVG。
我想要的是它应该替换当前的 SVG 并在同一个地方创建更新的图表。我的代码如下
// JQuery function for two buttons. Based on button click, I am selecting
input file name
$(document).ready(function (){
$("#link1").click(function(){
d3.select("#SVG_name").remove();
getData("readme-flare-imports.json");
});
$("#link2").click(function(){
d3.select("#SVG_name").remove();
getData("readme-flare-imports_1.json");
}
)});
var getData = function(fileName)
{
var diameter = 500,
radius = diameter / 2,
innerRadius = radius - 120;
var cluster = d3.layout.cluster()
.size([360, innerRadius])
.sort(null)
.value(function(d) { return d.size; });
var bundle = d3.layout.bundle();
var line = d3.svg.line.radial()
.interpolate("bundle")
.tension(.85)
.radius(function(d) { return d.y; })
.angle(function(d) { return d.x / 180 * Math.PI; });
var svg = d3.select("body").append("svg")
.attr("width", diameter)
.attr("height", diameter)
.append("g")
.attr("id","SVG_name")
.attr("transform", "translate(" + radius + "," + radius + ")");
var link = svg.append("g").selectAll(".link"),
node = svg.append("g").selectAll(".node");
var tip = d3.tip()
.attr('class', 'd3-tip')
.offset([-10, 0])
svg.call(tip);
d3.select(self.frameElement).style("height", diameter + "px");
d3.json(fileName, function(error, classes) {
var nodes = cluster.nodes(packageHierarchy(classes)),
links = packageImports(nodes);
link = link
.data(bundle(links))
.enter().append("path")
.each(function(d) { d.source = d[0], d.target = d[d.length - 1]; })
.attr("class", "link")
.attr("d", line);
node = node
.data(nodes.filter(function(n) { return !n.children; }))
.enter().append("text")
.attr("class", "node")
.attr("dx", function(d) { return d.x < 180 ? 8 : -8; })
.attr("dy", ".31em")
.attr("transform", function(d) { return "rotate(" + (d.x - 90) + ")translate(" + d.y + ")" + (d.x < 180 ? "" : "rotate(180)"); })
.style("text-anchor", function(d) { return d.x < 180 ? "start" : "end"; })
.text(function(d) { return d.key; })
.on("mouseover", mouseovered)
.on("mouseout", mouseouted);
});
function mouseovered(d) {
tip.html("<span style='color:red'>" + d.key + "</span>");
node
.each(function(n) { n.target = n.source = false; });
link
.classed("link--target", function(l) { if (l.target === d) return l.source.source = true; })
.classed("link--source", function(l) { if (l.source === d) return l.target.target = true; })
.filter(function(l) { return l.target === d || l.source === d; })
.each(function() { this.parentNode.appendChild(this); });
node
.classed("node--target", function(n) { return n.target; })
.classed("node--source", function(n) { return n.source; })
.classed("mouseover", tip.show);
}
function mouseouted(d) {
link
.classed("link--target", false)
.classed("link--source", false);
node
.classed("node--target", false)
.classed("node--source", false)
.classed("mouseout",tip.hide);
}
// Lazily construct the package hierarchy from class names.
function packageHierarchy(classes) {
var map = {};
function find(name, data) {
var node = map[name], i;
if (!node) {
node = map[name] = data || {name: name, children: []};
if (name.length) {
node.parent = find(name.substring(0, i = name.lastIndexOf(".")));
node.parent.children.push(node);
node.key = name.substring(i + 1);
}
}
return node;
}
classes.forEach(function(d) {
find(d.name, d);
});
return map[""];
}
// Return a list of imports for the given array of nodes.
function packageImports(nodes) {
var map = {},
imports = [];
// Compute a map from name to node.
nodes.forEach(function(d) {
map[d.name] = d;
});
// For each import, construct a link from the source to target node.
nodes.forEach(function(d) {
if (d.imports) d.imports.forEach(function(i) {
imports.push({source: map[d.name], target: map[i]});
});
});
return imports;
}
}
更新
<body>
<div>
<button class="btn btn-default ok-button" id="link1"> Link1 </button>
<button class="btn btn-default ok-button" id="link2"> Link2 </button>
</div>
<script type="text/javascript" src="d3/d3.v3.min.js"></script>
<script src="http://labratrevenge.com/d3-tip/javascripts/d3.tip.v0.6.3.js"></script>
<script type="text/javascript" src="js/jquery-2.1.0.min.js"></script>
<script type="text/javascript" src="js/main.js"></script>
</body>