2013-03-10 50 views
2

我一直在使用作出强制向图的d3.js库开始。有人能告诉我为什么这个代码this site还提到不起作用?被迫向图使用d3.js

的index.html

.node { 
    stroke: #fff; 
    stroke-width: 1.5px; 
} 

.link { 
    stroke: #999; 
    stroke-opacity: .6; 
} 

</style> 
<body> 
<script src="http://d3js.org/d3.v3.min.js"></script> 
<script> 

var width = 960, 
    height = 500; 

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("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("circle") 
     .attr("class", "node") 
     .attr("r", 5) 
     .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("cx", function(d) { return d.x; }) 
     .attr("cy", function(d) { return d.y; }); 
    }); 
}); 

</script> 

miserables.json

{ 
    "nodes":[ 
    {"name":"Myriel","group":1}, 
    {"name":"Napoleon","group":1}, 
    {"name":"Mlle.Baptistine","group":1}, 
    {"name":"Mme.Magloire","group":1}, 
    {"name":"CountessdeLo","group":1}, 
    {"name":"Geborand","group":1}, 
    {"name":"Champtercier","group":1}, 
    {"name":"Cravatte","group":1}, 
    {"name":"Count","group":1}, 
    {"name":"OldMan","group":1}, 
    {"name":"Labarre","group":2}, 
    {"name":"Valjean","group":2}, 
    {"name":"Marguerite","group":3}, 
    {"name":"Mme.deR","group":2}, 
    {"name":"Isabeau","group":2}, 
    {"name":"Gervais","group":2}, 
    {"name":"Tholomyes","group":3}, 
    {"name":"Listolier","group":3}, 
    {"name":"Fameuil","group":3}, 
    {"name":"Blacheville","group":3}, 
    {"name":"Favourite","group":3}, 
    {"name":"Dahlia","group":3}, 
    {"name":"Zephine","group":3}, 
    {"name":"Fantine","group":3}, 
    {"name":"Mme.Thenardier","group":4}, 
    {"name":"Thenardier","group":4}, 
    {"name":"Cosette","group":5}, 
    {"name":"Javert","group":4}, 
    {"name":"Fauchelevent","group":0}, 
    {"name":"Bamatabois","group":2}, 
    {"name":"Perpetue","group":3}, 
    {"name":"Simplice","group":2}, 
    {"name":"Scaufflaire","group":2}, 
    {"name":"Woman1","group":2}, 
    {"name":"Judge","group":2}, 
    {"name":"Champmathieu","group":2}, 
    {"name":"Brevet","group":2}, 
    {"name":"Chenildieu","group":2}, 
    {"name":"Cochepaille","group":2}, 
    {"name":"Pontmercy","group":4}, 
    {"name":"Boulatruelle","group":6}, 
    {"name":"Eponine","group":4}, 
    {"name":"Anzelma","group":4}, 
    {"name":"Woman2","group":5}, 
    {"name":"MotherInnocent","group":0}, 
    {"name":"Gribier","group":0}, 
    {"name":"Jondrette","group":7}, 
    {"name":"Mme.Burgon","group":7}, 
    {"name":"Gavroche","group":8}, 
    {"name":"Gillenormand","group":5}, 
    {"name":"Magnon","group":5}, 
    {"name":"Mlle.Gillenormand","group":5}, 
    {"name":"Mme.Pontmercy","group":5}, 
    {"name":"Mlle.Vaubois","group":5}, 
    {"name":"Lt.Gillenormand","group":5}, 
    {"name":"Marius","group":8}, 
    {"name":"BaronessT","group":5}, 
    {"name":"Mabeuf","group":8}, 
    {"name":"Enjolras","group":8}, 
    {"name":"Combeferre","group":8}, 
    {"name":"Prouvaire","group":8}, 
    {"name":"Feuilly","group":8}, 
    {"name":"Courfeyrac","group":8}, 
    {"name":"Bahorel","group":8}, 
    {"name":"Bossuet","group":8}, 
    {"name":"Joly","group":8}, 
    {"name":"Grantaire","group":8}, 
    {"name":"MotherPlutarch","group":9}, 
    {"name":"Gueulemer","group":4}, 
    {"name":"Babet","group":4}, 
    {"name":"Claquesous","group":4}, 
    {"name":"Montparnasse","group":4}, 
    {"name":"Toussaint","group":5}, 
    {"name":"Child1","group":10}, 
    {"name":"Child2","group":10}, 
    {"name":"Brujon","group":4}, 
    {"name":"Mme.Hucheloup","group":8} 
    ], 
    "links":[ 
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    ] 
} 
+0

如果你只是想一些调试,为此,这个网站是不是,至少发表的jsfiddle所以我们可以尝试做邹调试。 – 2013-03-10 21:40:24

+0

我已经足够长,这样,但是这是一个紧急情况,我有JavaScript的很少的想法。一般来说,我会在这里问一些问题之前进行一些研究。 – sudeepdino008 2013-03-11 11:23:51

+0

不用担心,你的问题实际上有趣给出的事实,这是很难看到为什么同样的代码没有在本地工作。 – 2013-03-11 15:53:47

回答

5

的代码,你提供的作品,你可以在此看到jsFiddle。唯一的区别是我没有使用d3.json函数来加载json文件。

你有问题肯定是要在本地运行,这不加载JSON。您需要在计算机上运行服务器才能使其工作。这里有一个问题,还可以帮助:d3.json: "Uncaught TypeError: Cannot read property 'children' of undefined"

最简单的方法有一个本地的Web服务器,解释here是在你有你的源代码的目录运行此命令:

python -m SimpleHTTPServer 8888 & 

然后只是加载页面http://localhost:8888