可折叠的树布局。将树枝均匀铺开
特立独行
我试图通过稍作修改来复制下面的示例。而不是从左到右的方向，我已将方向更改为从上到下。我成功地根据 Json 中的大小参数更改了节点大小。
https://bl.ocks.org/d3noob/43a860bc0024792f8803bba8ca0d5ecd
我遇到的问题是分支没有均匀分布。请参考下图。
请查找附件代码以进行调试
<!DOCTYPE html>
<meta charset="UTF-8">
<style>
div.container {
width: 100%;
border: 1px solid gray;
}
header, footer {
padding: 1em;
color: white;
background-color: red;
clear: left;
text-align: center;
}
nav {
float: left;
max-width: 160px;
margin: 0;
padding: 1em;
}
nav ul {
list-style-type: none;
padding: 0;
}
nav ul a {
text-decoration: none;
}
article {
margin-left: 170px;
border-left: 1px solid gray;
padding: 1em;
overflow: hidden;
}
.node circle {
fill: #fff;
stroke: steelblue;
stroke-width: 3px;
}
.node text {
font: 12px sans-serif;
transform: rotate(45deg);
}
.link {
fill: none;
stroke: #ccc;
stroke-width: 2px;
}
div.tooltip {
position: absolute;
text-align: center;
width: 100px;
height: 10px;
padding: 8px;
font: 10px sans-serif;
background: #ffff99;
border: solid 1px #aaa;
border-radius: 8px;
pointer-events: none;
}
</style>
<body bgcolor = '#F0FFF0'>
<!-- load the d3.js library -->
<script src="https://d3js.org/d3.v4.min.js"></script>
<div align = "left">
<script>
var treeData =
{
"name": "AON",
"size": 4,
"children": [
{
"name": "India",
"size": 4,
"children": [
{
"name": "ARS",
"size": 4,
"children": [
{
"name": "AAA",
"size": 4
},
{
"name": "BBB",
"size": 4
},
{
"name": "cCC",
"size": 8
},
{
"name": "ddd",
"size": 4
},
{
"name": "eee",
"size": 4
},
{
"name": "fff",
"size": 4
},
{
"name": "ggg",
"size": 4
},
{
"name": "hhh",
"size": 4
},
{
"name": "www",
"size": 4
},
{
"name": "qwww",
"size": 8
},
{
"name": "sd",
"size": 4
},
{
"name": "tere",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "rtr",
"size": 4
},
{
"name": "AAA",
"size": 4
},
{
"name": "BBB",
"size": 4
},
{
"name": "cCC",
"size": 8
},
{
"name": "ddd",
"size": 4
},
{
"name": "eee",
"size": 4
},
{
"name": "fff",
"size": 4
},
{
"name": "ggg",
"size": 4
},
{
"name": "hhh",
"size": 4
},
{
"name": "www",
"size": 4
},
{
"name": "qwww",
"size": 8
},
{
"name": "sd",
"size": 4
},
{
"name": "tere",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "rtr",
"size": 4
},
{
"name": "wqw",
"size": 4
},
{
"name": "hrfg",
"size": 4
}
]
}
]
},
{
"name": "Singapore",
"size": 4,
"children": [
{
"name": "H&B",
"size": 4,
"children": [
{
"name": "aasd",
"size": 4
},
{
"name": "sdw",
"size": 4
},
{
"name": "ghrr",
"size": 4
},
{
"name": "tyr",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "ere",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "eds",
"size": 4
},
{
"name": "hrtr",
"size": 8
},
{
"name": "wew",
"size": 4
},
{
"name": "uyt",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "wewe",
"size": 4
},
{
"name": "yrt",
"size": 4
},
{
"name": "uyu",
"size": 4
},
{
"name": "erewr",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "kyjy",
"size": 4
}
]
},
{
"name": "GCP",
"size": 4,
"children": [
{
"name": "wew",
"size": 4
},
{
"name": "sdsf",
"size": 4
},
{
"name": "wewt",
"size": 4
},
{
"name": "wetdse",
"size": 4
},
{
"name": "wetw",
"size": 4
},
{
"name": "qwsd",
"size": 4
},
{
"name": "yrytw",
"size": 4
},
{
"name": "wewax",
"size": 4
},
{
"name": "jttut",
"size": 4
},
{
"name": "scscw",
"size": 4
},
{
"name": "wetvd",
"size": 4
},
{
"name": "wewe",
"size": 4
},
{
"name": "zc",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "zerete",
"size": 8
},
{
"name": "sdaxa",
"size": 4
},
{
"name": "yeer",
"size": 4
},
{
"name": "sdaxa",
"size": 4
},
{
"name": "wewretre",
"size": 4
},
{
"name": "ssdsrere",
"size": 4
},
{
"name": "asdsdere",
"size": 4
},
{
"name": "asdsdere",
"size": 4
}
]
}
]
},
{
"name": "US",
"size": 4,
"children": [
{
"name": "Benfield",
"size": 4,
"children": [
{
"name": "wes",
"size": 4
},
{
"name": "sd",
"size": 4
},
{
"name": "dds",
"size": 4
},
{
"name": "sdsd",
"size": 4
},
{
"name": "ere",
"size": 4
},
{
"name": "ryr",
"size": 4
},
{
"name": "ty",
"size": 4
},
{
"name": "wewe",
"size": 4
},
{
"name": "ggrt",
"size": 4
},
{
"name": "wetyr",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "hrfg",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "hhf",
"size": 8
},
{
"name": "ere",
"size": 4
},
{
"name": "vfgd",
"size": 4
}
]
},
{
"name": "GCP",
"size": 4,
"children": [
{
"name": "xx",
"size": 4
},
{
"name": "wqwq",
"size": 4
},
{
"name": "xasa",
"size": 4
},
{
"name": "ooo",
"size": 4
},
{
"name": "ppp",
"size": 4
},
{
"name": "ll",
"size": 4
},
{
"name": "lljk",
"size": 4
},
{
"name": "kjjk",
"size": 4
},
{
"name": "kui",
"size": 4
},
{
"name": "yu",
"size": 4
},
{
"name": "li",
"size": 4
},
{
"name": "uyu",
"size": 4
},
{
"name": "yuik",
"size": 4
},
{
"name": "yjm",
"size": 4
},
{
"name": "yu",
"size": 4
},
{
"name": "yikm",
"size": 4
},
{
"name": "yu",
"size": 8
},
{
"name": "mmui",
"size": 4
},
{
"name": "yum",
"size": 4
},
{
"name": "kyuyy",
"size": 4
},
{
"name": "dffgy",
"size": 4
},
{
"name": "erfdr",
"size": 4
}
]
}
]
}
]
}
;
// Set the dimensions and margins of the diagram
var margin = {top: 30, right: 120, bottom: 20, left: 120},
//width = 960 - margin.left - margin.right,
//height = 500 - margin.top - margin.bottom;
width = 1000,
height = 550;
// append the svg object to the body of the page
// appends a 'group' element to 'svg'
// moves the 'group' element to the top left margin
var svg = d3.select("body").append("svg")
.attr("width", width + margin.right + margin.left)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate("
+ 400 + "," + margin.top + ")"); //580 is close to center
// Add tooltip div
var div = d3.select("body").append("div")
.attr("class", "tooltip")
.style("opacity", 1e-6);
var i = 0,
duration = 750,
root;
// declares a tree layout and assigns the size
var treemap = d3.cluster().size([height, width]);
// Assigns parent, children, height, depth
root = d3.hierarchy(treeData, function(d) { return d.children; });
root.x0 = height / 2;
root.y0 = 0;
// Collapse after the second level
root.children.forEach(collapse);
update(root);
// Collapse the node and all it's children
function collapse(d) {
if(d.children) {
d._children = d.children
d._children.forEach(collapse)
d.children = null
}
}
function update(source) {
// Assigns the x and y position for the nodes
var treeData = treemap(root);
// Compute the new tree layout.
var nodes = treeData.descendants(),
links = treeData.descendants().slice(1);
// Normalize for fixed-depth.
nodes.forEach(function(d) { d.y = d.depth * 160; });
// ****************** Nodes section ***************************
// Update the nodes...
var node = svg.selectAll('g.node')
.data(nodes, function(d) {return d.id || (d.id = ++i); });
// Enter any new modes at the parent's previous position.
var nodeEnter = node.enter().append('g')
.attr('class', 'node')
.attr("transform", function(d) {
return "translate(" + source.x0 + "," + source.y0 + ")";
})
.on('click', click);
// Add Circle for the nodes
nodeEnter.append('circle')
.attr('class', 'node')
.attr('r', 1e-6)
.style("fill", function(d) {
return d._children ? "lightsteelblue" : "#fff";
});
// Add labels for the nodes
nodeEnter.append('text')
.attr("dy", ".35em")
.attr("y", function(d) {
return d.children || d._children ? -18 : 18;
})
.attr("text-anchor", function(d) {
return d.children || d._children ? "end" : "start";
})
.attr("dy", function(d) {
return d.children || d._children ? "2em" : "-1em";
})
.attr("dx", function(d) {
return d.children || d._children ? "-1em" : "1em";
})
.text(function(d) { return d.data.name; });
// UPDATE
var nodeUpdate = nodeEnter.merge(node);
// Transition to the proper position for the node
nodeUpdate.transition()
.duration(duration)
.attr("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")";
});
// Update the node attributes and style
nodeUpdate.select('circle.node')
//.attr('r', 10)
.attr('r',function(d) { return d.data.size; })
.style("fill", function(d) {
return d._children ? "lightsteelblue" : "#fff";
})
.attr('cursor', 'pointer')
.on("mouseover", mouseover)
.on("mousemove", function(d){mousemove(d);})
.on("mouseout", mouseout);
function mouseover() {
div.transition()
.duration(300)
.style("opacity", 1);
}
function mousemove(d) {
div
.text(d.data.name)
.style("left", (d3.event.pageX ) + "px")
.style("top", (d3.event.pageY) + "px");
}
function mouseout() {
div.transition()
.duration(300)
.style("opacity", 1e-6);
}
// Remove any exiting nodes
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function(d) {
return "translate(" + source.x + "," + source.y + ")";
})
.remove();
// On exit reduce the node circles size to 0
nodeExit.select('circle')
.attr('r', 1e-6);
// On exit reduce the opacity of text labels
nodeExit.select('text')
.style('fill-opacity', 1e-6);
// ****************** links section ***************************
// Update the links...
var link = svg.selectAll('path.link')
.data(links, function(d) { return d.id; });
// Enter any new links at the parent's previous position.
var linkEnter = link.enter().insert('path', "g")
.attr("class", "link")
.attr('d', function(d){
var o = {x: source.y0+200, y: source.x0+200}
return diagonal(o, o)
});
// UPDATE
var linkUpdate = linkEnter.merge(link);
// Transition back to the parent element position
linkUpdate.transition()
.duration(duration)
.attr('d', function(d){ return diagonal(d, d.parent) });
// Remove any exiting links
var linkExit = link.exit().transition()
.duration(duration)
.attr('d', function(d) {
var o = {x: source.y+200, y: source.x+200}
return diagonal(o, o)
})
.remove();
// Store the old positions for transition.
nodes.forEach(function(d){
d.x0 = d.y;
d.y0 = d.x;
});
// Creates a curved (diagonal) path from parent to the child nodes
function diagonal(s, d) {
path = `M ${s.x} ${s.y}
C ${(s.x + d.x) / 2} ${s.y},
${(s.x + d.x) / 2} ${d.y},
${d.x} ${d.y}`
return path
}
// Toggle children on click.
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}
}
</script>
</div>
<div align="right">
<img src="aon.png" alt="Mountain View" style="width:200px;height:100px;">
</div>
</body>请让我知道我需要修改的地方，以确保链接和文本不会相互重叠。
格雷厄姆
使用 d3.cluster 而不是 d3.tree 将更好地分散中间分支（即删除屏幕截图中的 benfield 和 cp 之间的冲突）
然后旋转标签是阻止它们相互覆盖的最快修复方法，这只是一个 css 规则：
.node text {
font: 12px sans-serif;
transform: rotate(45deg);
}
我还在您设置的 d3 文本属性中添加了几个 dx/dy 偏移量，以使它们排列得更好（根据锚点位置，旋转会使它们偏离一些）
但是，这只能让您走得更远，如果您展开所有看到底部标签仍然重叠的内容，则需要使其更宽或限制可以在底部打开的分支数量
<!DOCTYPE html>
<meta charset="UTF-8">
<style>
div.container {
width: 100%;
border: 1px solid gray;
}
header, footer {
padding: 1em;
color: white;
background-color: red;
clear: left;
text-align: center;
}
nav {
float: left;
max-width: 160px;
margin: 0;
padding: 1em;
}
nav ul {
list-style-type: none;
padding: 0;
}
nav ul a {
text-decoration: none;
}
article {
margin-left: 170px;
border-left: 1px solid gray;
padding: 1em;
overflow: hidden;
}
.node circle {
fill: #fff;
stroke: steelblue;
stroke-width: 3px;
}
.node text {
font: 12px sans-serif;
transform: rotate(45deg);
}
.link {
fill: none;
stroke: #ccc;
stroke-width: 2px;
}
</style>
<body >
<!-- load the d3.js library -->
<script src="https://d3js.org/d3.v4.min.js"></script>
<div align = "left">
<script>
var treeData =
{
"name": "AON",
"size": 4,
"children": [
{
"name": "India",
"size": 4,
"children": [
{
"name": "ARS",
"size": 4,
"children": [
{
"name": "AAA",
"size": 4
},
{
"name": "BBB",
"size": 4
},
{
"name": "cCC",
"size": 8
},
{
"name": "ddd",
"size": 4
},
{
"name": "eee",
"size": 4
},
{
"name": "fff",
"size": 4
},
{
"name": "ggg",
"size": 4
},
{
"name": "hhh",
"size": 4
},
{
"name": "www",
"size": 4
},
{
"name": "qwww",
"size": 8
},
{
"name": "sd",
"size": 4
},
{
"name": "tere",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "rtr",
"size": 4
},
{
"name": "wqw",
"size": 4
},
{
"name": "hrfg",
"size": 4
}
]
}
]
},
{
"name": "Singapore",
"size": 4,
"children": [
{
"name": "H&B",
"size": 4,
"children": [
{
"name": "aasd",
"size": 4
},
{
"name": "sdw",
"size": 4
},
{
"name": "ghrr",
"size": 4
},
{
"name": "tyr",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "ere",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "eds",
"size": 4
},
{
"name": "hrtr",
"size": 8
},
{
"name": "wew",
"size": 4
},
{
"name": "uyt",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "wewe",
"size": 4
},
{
"name": "yrt",
"size": 4
},
{
"name": "uyu",
"size": 4
},
{
"name": "erewr",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "kyjy",
"size": 4
}
]
},
{
"name": "GCP",
"size": 4,
"children": [
{
"name": "wew",
"size": 4
},
{
"name": "sdsf",
"size": 4
},
{
"name": "wewt",
"size": 4
},
{
"name": "wetdse",
"size": 4
},
{
"name": "wetw",
"size": 4
},
{
"name": "qwsd",
"size": 4
},
{
"name": "yrytw",
"size": 4
},
{
"name": "wewax",
"size": 4
},
{
"name": "jttut",
"size": 4
},
{
"name": "scscw",
"size": 4
},
{
"name": "wetvd",
"size": 4
},
{
"name": "wewe",
"size": 4
},
{
"name": "zc",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "zerete",
"size": 8
},
{
"name": "sdaxa",
"size": 4
},
{
"name": "yeer",
"size": 4
},
{
"name": "sdaxa",
"size": 4
},
{
"name": "wewretre",
"size": 4
},
{
"name": "ssdsrere",
"size": 4
},
{
"name": "asdsdere",
"size": 4
},
{
"name": "asdsdere",
"size": 4
}
]
}
]
},
{
"name": "US",
"size": 4,
"children": [
{
"name": "Benfield",
"size": 4,
"children": [
{
"name": "wes",
"size": 4
},
{
"name": "sd",
"size": 4
},
{
"name": "dds",
"size": 4
},
{
"name": "sdsd",
"size": 4
},
{
"name": "ere",
"size": 4
},
{
"name": "ryr",
"size": 4
},
{
"name": "ty",
"size": 4
},
{
"name": "wewe",
"size": 4
},
{
"name": "ggrt",
"size": 4
},
{
"name": "wetyr",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "hrfg",
"size": 4
},
{
"name": "wew",
"size": 4
},
{
"name": "hhf",
"size": 8
},
{
"name": "ere",
"size": 4
},
{
"name": "vfgd",
"size": 4
}
]
},
{
"name": "GCP",
"size": 4,
"children": [
{
"name": "xx",
"size": 4
},
{
"name": "wqwq",
"size": 4
},
{
"name": "xasa",
"size": 4
},
{
"name": "ooo",
"size": 4
},
{
"name": "ppp",
"size": 4
},
{
"name": "ll",
"size": 4
},
{
"name": "lljk",
"size": 4
},
{
"name": "kjjk",
"size": 4
},
{
"name": "kui",
"size": 4
},
{
"name": "yu",
"size": 4
},
{
"name": "li",
"size": 4
},
{
"name": "uyu",
"size": 4
},
{
"name": "yuik",
"size": 4
},
{
"name": "yjm",
"size": 4
},
{
"name": "yu",
"size": 4
},
{
"name": "yikm",
"size": 4
},
{
"name": "yu",
"size": 8
},
{
"name": "mmui",
"size": 4
},
{
"name": "yum",
"size": 4
},
{
"name": "kyuyy",
"size": 4
},
{
"name": "dffgy",
"size": 4
},
{
"name": "erfdr",
"size": 4
}
]
}
]
}
]
}
;
// Set the dimensions and margins of the diagram
var margin = {top: 30, right: 120, bottom: 20, left: 120},
//width = 960 - margin.left - margin.right,
//height = 500 - margin.top - margin.bottom;
width = 1000,
height = 600;
// append the svg object to the body of the page
// appends a 'group' element to 'svg'
// moves the 'group' element to the top left margin
var svg = d3.select("body").append("svg")
.attr("width", width + margin.right + margin.left)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate("
+ 580 + "," + margin.top + ")"); //580 is close to center
var i = 0,
duration = 750,
root;
// declares a tree layout and assigns the size
var treemap = d3.cluster().size([height, width]);
// Assigns parent, children, height, depth
root = d3.hierarchy(treeData, function(d) { return d.children; });
root.x0 = height / 2;
root.y0 = 0;
// Collapse after the second level
root.children.forEach(collapse);
update(root);
// Collapse the node and all it's children
function collapse(d) {
if(d.children) {
d._children = d.children
d._children.forEach(collapse)
d.children = null
}
}
function update(source) {
// Assigns the x and y position for the nodes
var treeData = treemap(root);
// Compute the new tree layout.
var nodes = treeData.descendants(),
links = treeData.descendants().slice(1);
// Normalize for fixed-depth.
nodes.forEach(function(d) { d.y = d.depth * 160; });
// ****************** Nodes section ***************************
// Update the nodes...
var node = svg.selectAll('g.node')
.data(nodes, function(d) {return d.id || (d.id = ++i); });
// Enter any new modes at the parent's previous position.
var nodeEnter = node.enter().append('g')
.attr('class', 'node')
.attr("transform", function(d) {
return "translate(" + source.x0 + "," + source.y0 + ")";
})
.on('click', click);
// Add Circle for the nodes
nodeEnter.append('circle')
.attr('class', 'node')
.attr('r', 1e-6)
.style("fill", function(d) {
return d._children ? "lightsteelblue" : "#fff";
});
// Add labels for the nodes
nodeEnter.append('text')
.attr("dy", ".35em")
.attr("y", function(d) {
return d.children || d._children ? -18 : 18;
})
.attr("text-anchor", function(d) {
return d.children || d._children ? "end" : "start";
})
.attr("dy", function(d) {
return d.children || d._children ? "2em" : "-1em";
})
.attr("dx", function(d) {
return d.children || d._children ? "-1em" : "1em";
})
.text(function(d) { return d.data.name; });
// UPDATE
var nodeUpdate = nodeEnter.merge(node);
// Transition to the proper position for the node
nodeUpdate.transition()
.duration(duration)
.attr("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")";
});
// Update the node attributes and style
nodeUpdate.select('circle.node')
//.attr('r', 10)
.attr('r',function(d) { return d.data.size; })
.style("fill", function(d) {
return d._children ? "lightsteelblue" : "#fff";
})
.attr('cursor', 'pointer');
// Remove any exiting nodes
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function(d) {
return "translate(" + source.x + "," + source.y + ")";
})
.remove();
// On exit reduce the node circles size to 0
nodeExit.select('circle')
.attr('r', 1e-6);
// On exit reduce the opacity of text labels
nodeExit.select('text')
.style('fill-opacity', 1e-6);
// ****************** links section ***************************
// Update the links...
var link = svg.selectAll('path.link')
.data(links, function(d) { return d.id; });
// Enter any new links at the parent's previous position.
var linkEnter = link.enter().insert('path', "g")
.attr("class", "link")
.attr('d', function(d){
var o = {x: source.y0, y: source.x0}
return diagonal(o, o)
});
// UPDATE
var linkUpdate = linkEnter.merge(link);
// Transition back to the parent element position
linkUpdate.transition()
.duration(duration)
.attr('d', function(d){ return diagonal(d, d.parent) });
// Remove any exiting links
var linkExit = link.exit().transition()
.duration(duration)
.attr('d', function(d) {
var o = {x: source.y, y: source.x}
return diagonal(o, o)
})
.remove();
// Store the old positions for transition.
nodes.forEach(function(d){
d.x0 = d.y;
d.y0 = d.x;
});
// Creates a curved (diagonal) path from parent to the child nodes
function diagonal(s, d) {
path = `M ${s.x} ${s.y}
C ${(s.x + d.x) / 2} ${s.y},
${(s.x + d.x) / 2} ${d.y},
${d.x} ${d.y}`
return path
}
// Toggle children on click.
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}
}
</script>
</div>
<div align="right">
<img src="aon.png" alt="Mountain View" style="width:200px;height:100px;">
</div>
</body>本文收集自互联网，转载请注明来源。
如有侵权，请联系 [email protected] 删除。
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