如何在以下d3 强制有向图中将节点更改为矩形而不是圆形?
问问题
12784 次
3 回答
23
您必须附加rect
SVG 元素而不是circle
.
因此,在脚本中,它显示了这一点:
var node = svg.selectAll(".node")
.data(graph.nodes)
.enter().append("circle")
.attr("class", "node")
.attr("r", 5)
.style("fill", function(d) { return color(d.group); })
.call(force.drag);
你应该把它改成这样:
var node = svg.selectAll(".node")
.data(graph.nodes)
.enter().append("rect")
.attr("class", "node")
.attr("width", 40)
.attr("height", 20)
.style("fill", function(d) { return color(d.group); })
.call(force.drag);
而且,它显示的地方:
node.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
将其更改为:
node.attr("x", function(d) { return d.x; })
.attr("y", function(d) { return d.y; });
于 2013-07-25T10:23:20.837 回答
9
更改circle
为rect
。删除r
属性。添加width
和height
属性。将 fdg 中的and更改为cx
and :cy
x
y
var width = 960, height = 500;
var rectWidth = 20, rectHeight = 10;
var color = d3.scale.category20();
var force = d3.layout.force()
.charge(-120)
.linkDistance(30)
.size([width, height]);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
d3.json("https://raw.githubusercontent.com/d3/d3-plugins/master/graph/data/miserables.json", function(error, graph) {
force
.nodes(graph.nodes)
.links(graph.links)
.start();
var link = svg.selectAll(".link")
.data(graph.links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width", function(d) { return Math.sqrt(d.value); });
var node = svg.selectAll(".node")
.data(graph.nodes)
.enter().append("rect")
.attr("class", "node")
.attr("width", rectWidth)
.attr("height", rectHeight)
.style("fill", function(d) { return color(d.group); })
.call(force.drag);
node.append("title")
.text(function(d) { return d.name; });
force.on("tick", function() {
link
.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node
.attr("x", function(d) { return d.x - rectWidth / 2; })
.attr("y", function(d) { return d.y - rectHeight / 2; });
});
});
.node {
stroke: #fff;
stroke-width: 1.5px;
}
.link {
stroke: #999;
stroke-opacity: .6;
}
<script src="http://d3js.org/d3.v3.min.js"></script>
于 2013-07-25T10:20:37.760 回答
1
Here is a simple example of using Rectangles with a json file :
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.link {
stroke: #000;
stroke-width: 1.5px;
}
.node {
cursor: move;
fill: #ccc;
stroke: #000;
stroke-width: 1.5px;
}
.node.fixed {
fill: #f00;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var width = 960,
height = 800;
var force = d3.layout.force()
.size([width, height])
.charge(-400)
.linkDistance(100)
.on("tick", tick);
var drag = force.drag();
//.on("dragstart", dragstart);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var link = svg.selectAll(".link"),
node = svg.selectAll(".node");
d3.json("graph.json", function(error, graph) {
if (error) throw error;
force
.nodes(graph.nodes)
.links(graph.links)
.start();
link = link.data(graph.links)
.enter().append("line")
.attr("class", "link");
node = node.data(graph.nodes)
.enter().append("rect")
.attr("class", "node")
.attr("width", 60)
.attr("height", 60)
.on("dblclick", dblclick)
.call(drag);
});
function tick() {
link.attr("x1", function(d) { return d.source.x+25; })
.attr("y1", function(d) { return d.source.y+25; })
.attr("x2", function(d) { return d.target.x+25; })
.attr("y2", function(d) { return d.target.y+25; });
node.attr("x", function(d) { return d.x; })
.attr("y", function(d) { return d.y; });
}
function dblclick(d) {
d3.select(this).classed("fixed", d.fixed = false);
}
function dragstart(d) {
d3.select(this).classed("fixed", d.fixed = true);
}
</script>
The Json file is bellow. Give the exact path of your json file in the code:
{
"nodes": [
{"x": 469, "y": 410},
{"x": 493, "y": 364},
{"x": 442, "y": 365},
{"x": 467, "y": 314},
{"x": 477, "y": 248},
{"x": 425, "y": 207},
{"x": 402, "y": 155},
{"x": 369, "y": 196},
{"x": 350, "y": 148},
{"x": 539, "y": 222},
{"x": 594, "y": 235},
{"x": 582, "y": 185},
{"x": 633, "y": 200}
],
"links": [
{"source": 0, "target": 1},
{"source": 0, "target": 2},
{"source": 0, "target": 3},
{"source": 1, "target": 4},
{"source": 1, "target": 5},
{"source": 2, "target": 6},
{"source": 2, "target": 7},
{"source": 3, "target": 8},
{"source": 3, "target": 9},
{"source": 4, "target": 10},
{"source": 5, "target": 11},
{"source": 6, "target": 12}
]
}
于 2016-04-28T13:50:32.453 回答