Question

我是D3的新手。我正在使用力导向图。我想在节点的位置添加两种不同类型的形状。

我的json正在关注：

{
  "nodes":[
    {"name":"00:00:00:00:00:00:00:01","group":0,"shape":1},
    {"name":"00:00:00:00:00:00:00:02","group":1,"shape":1},
    {"name":"00:00:00:00:00:00:00:03","group":2,"shape":1},
    {"name":"00:00:00:00:00:00:00:11","group":0,"shape":0},
    {"name":"00:00:00:00:00:00:00:21","group":1,"shape":0},
    {"name":"00:00:00:00:00:00:00:31","group":2,"shape":0},
    {"name":"00:00:00:00:00:00:00:32","group":2,"shape":0},
    {"name":"00:00:00:00:00:00:00:12","group":0,"shape":0},
    {"name":"00:00:00:00:00:00:00:22","group":1,"shape":0}
  ],
  "links":[
    { "source":  0,  "target":  0,  "value":  5 },
    { "source":  1,  "target":  1,  "value":  5 },
    { "source":  2,  "target":  2,  "value":  5 },
    { "source":  3,  "target":  0,  "value":  5 },
    { "source":  4,  "target":  1,  "value":  5 },
    { "source":  5,  "target":  2,  "value":  5 },
    { "source":  6,  "target":  2,  "value":  5 },
    { "source":  7,  "target":  0,  "value":  5 },
    { "source":  8,  "target":  1,  "value":  5 }
  ]
}

如果形状值为1，则绘制圆，如果形状值为0，则绘制矩形。强制有向图示例链接为：http://bl.ocks.org/mbostock/4062045

我尝试过示例链接JSFiddle：http://jsfiddle.net/mayurchavda87/Sc2xC/3/

Answer 1

你可以这样做，如例如： this example，通过使用symbol generator和path元素代替SVG元素来表示特定形状。添加形状的代码变为

var node = svg.selectAll(".node")
  .data(data.nodes)
  .enter().append("path")
  .attr("class", "node")
  .attr("d", d3.svg.symbol()
    .type(function(d) { return d3.svg.symbolTypes[d.s]; }))
  .style("fill", function(d) { return color(d.group); })
  .call(force.drag);

然后，您还需要更改tick处理程序，以更改transform元素的path属性：

node.attr("transform", function(d) {
    return "translate(" + d.x + "," + d.y + ")";
});

完成jsfiddle here。

如何根据形状字段值为D3力导向图添加两种不同的形状？

1 个答案: