我正在尝试创建静态有力有向图。一个不带任何动画的加载。这是我要模仿的内容:http://bl.ocks.org/mbostock/1667139
我有以下D3图:
var width = $("#theVizness").width(),
height = $("#theVizness").height();
var color = d3.scale.ordinal().range(["#ff0000", "#fff000", "#ff4900"]);
var force = d3.layout.force()
.charge(-120)
.linkDistance(30)
.size([width, height]);
var svg = d3.select("#theVizness").append("svg")
.attr("width", width)
.attr("height", height);
var loading = svg.append("text")
.attr("class", "loading")
.attr("x", width / 2)
.attr("y", height / 2)
.attr("dy", ".35em")
.style("text-anchor", "middle")
.text("Loading...");
d3.json("https://dl.dropboxusercontent.com/u/5772230/ForceDirectData.json", function (error, json) {
var nodes = json.nodes;
force.nodes(nodes)
.links(json.links)
.linkDistance(function (d) {
return d.value * 1.5;
})
.friction(0.4);
var link = svg.selectAll(".link")
.data(json.links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width", 1);
var files = svg.selectAll(".file")
.data(json.nodes)
.enter().append("circle")
.attr("class", "file")
.attr("r", 10)
.attr("fill", function (d) {
return color(d.colorGroup);
});
var totalNodes = files[0].length;
files.append("title")
.text(function (d) { return d.name; });
force.start();
for (var i = totalNodes * totalNodes; i > 0; --i) force.tick();
force.stop();
nodes[0].x = width / 2;
nodes[0].y = height / 2;
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; });
files.attr("cx", function (d) { return d.x; })
.attr("cy", function (d) { return d.y; })
.attr("class", function(d){
var classString = "file"
if (d.index === 0) classString += " rootFile";
return classString;
})
.attr("r", function(d){
var radius = 10;
if (d.index === 0) radius = radius * 2;
return radius;
});
loading.remove();
});
这是我的数据:https://dl.dropboxusercontent.com/u/5772230/ForceDirectData.json
{
"nodes":[
{"name":"File1.exe","colorGroup":0},
{"name":"File2.exe","colorGroup":0},
{"name":"File3.exe","colorGroup":0},
{"name":"File4.exe","colorGroup":0},
{"name":"File5.exe","colorGroup":0},
{"name":"File6.exe","colorGroup":0},
{"name":"File7.exe","colorGroup":0},
{"name":"File8.exe","colorGroup":0},
{"name":"File8.exe","colorGroup":0},
{"name":"File9.exe","colorGroup":0}
],
"links":[
{"source":1,"target":0,"value":10},
{"source":2,"target":0,"value":35},
{"source":3,"target":0,"value":50},
{"source":4,"target":0,"value":50},
{"source":5,"target":0,"value":65},
{"source":6,"target":0,"value":65},
{"source":7,"target":0,"value":81},
{"source":8,"target":0,"value":98},
{"source":9,"target":0,"value":100}
]
}
根据我对bl.ocks页面的了解,此图在tick
方法上运行了一定次数。但是我的问题是节点之间的链接长度与JSON文件中的链接不成比例。
我选择了静态图形,因为我不想像standard graph中那样使图形成为动画。
我不明白你的问题。
这是您的意思吗?
var width = $("#theVizness").width(),
height = $("#theVizness").height();
var color = d3.scale.ordinal().range(["#ff0000", "#fff000", "#ff4900"]);
var force = d3.layout.force()
.charge(-120)
.linkDistance(30)
.size([width, height]);
var svg = d3.select("#theVizness").append("svg")
.attr("width", width)
.attr("height", height);
var loading = svg.append("text")
.attr("class", "loading")
.attr("x", width / 2)
.attr("y", height / 2)
.attr("dy", ".35em")
.style("text-anchor", "middle")
.text("Loading...");
d3.json("https://dl.dropboxusercontent.com/u/5772230/ForceDirectData.json", function (error, json) {
var nodes = json.nodes;
force.nodes(nodes)
.links(json.links)
.linkDistance(function (d) {
return d.value * 1.5;
})
.friction(0.4);
var link = svg.selectAll(".link")
.data(json.links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width", 1);
var files = svg.selectAll(".file")
.data(json.nodes)
.enter().append("circle")
.attr("class", "file")
.attr("r", 10)
.attr("fill", function (d) {
return color(d.colorGroup);
});
var totalNodes = files[0].length;
files.append("title")
.text(function (d) { return d.name; });
force.start();
for (var i = totalNodes * totalNodes; i > 0; --i) force.tick();
nodes[0].x = width / 2;
nodes[0].y = height / 2;
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; });
files.attr("cx", function (d) { return d.x; })
.attr("cy", function (d) { return d.y; })
.attr("class", function(d){
var classString = "file"
if (d.index === 0) classString += " rootFile";
return classString;
})
.attr("r", function(d){
var radius = 10;
if (d.index === 0) radius = radius * 2;
return radius;
});
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; });
files.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
});
loading.remove();
});