Dom*_*irl 6 html javascript python d3.js
我一直在尝试通过HTML和d3.js可视化Python脚本生成的解析树.Python脚本生成一个如下所示的HMTL文档:
<!DOCTYPE html>
<meta charset="utf-8">
<head><title> Tree Visualization </title></head>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script type="text/javascript">js</script>
<body onLoad="drawTree({divID: \'viz\', width: 600, height: 400, padding: 50, treeData: treeData})">
<div id="viz"></div>
</body>
</html>
jsJavascript代码在哪里做d3的东西
function drawTree(o) {
d3.select("#"+o.divID).select("svg").remove()
var viz = d3.select("#"+o.divID)
.append("svg")
.attr("width", o.width)
.attr("height", o.height)
var vis = viz
.append("g")
.attr("id","treeg")
.attr("transform", "translate("+ o.padding +","+ o.padding +")");
var tree = d3.layout.tree()
.size([o.width - (2 * o.padding), o.height - (2 * o.padding)]);
var diagonal = d3.svg.diagonal()
.projection(function(d) { return [d.x, d.y]; });
var nodes = tree.nodes(o.treeData);
var link = vis.selectAll("pathlink")
.data(tree.links(nodes))
.enter()
.append("path")
.attr("class", "link")
.attr("d", diagonal)
var node = vis.selectAll("g.node")
.data(nodes)
.enter()
.append("g")
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; })
node.append("circle")
.attr("r", 10)
.style("fill", function(d) { return (d.children) ? "#E14B3B" : "#1C8B98" });
node.append("svg:text")
.attr("dx", function(d) { return d.children ? 0 : 0; })
.attr("dy", function(d) { return d.children ? 5 : 5; })
.attr("text-anchor", function(d) { return d.children ? "middle" : "middle"; })
.style("fill", "white")
.text(function(d) { return d.name; });
}
并且treeData是一个类似JSON的树的表示.
我现在得到的是错误Cannot read property 'tree' of undefined的js部分,在var tree = ...行.我很可能只是失明,你会立刻看到我做错了什么,但我现在已经盯着这一段了......
在此先感谢您的帮助!
M.K*_*ran 17
d3js v4不再使用d3.layout.tree了.而是使用如下
var tree = d3.layout.tree(); //v3
var tree = d3.tree(); //v4
检查更改日志中的差异:
- d3.layout.tree↦d3.tree