单击dagre-d3中的节点

Question

我正在使用degre-d3，并且在获取单击节点的节点数据时遇到了问题。单击时我有一个事件，但是d3.select(this)似乎没有得到相关数据(如果可能的话，我希望有节点名称、标签和其他对象数据)。

app.controller "DashboardElementShowController", ($scope, DashboardElementIndexService) ->
  init_app = ->
    # Create a new directed graph
    g = new dagreD3.Digraph()

    g.addNode "bpitt",
      label: "html Brad Pitt <b>test</b>"
    g.addNode "hford",
      label: "Harrison Ford"
    g.addNode "lwilson",
      label: "Luke Wilson"
    g.addNode "kbacon",
      label: "Kevin Bacon"

    g.addEdge null, "bpitt", "kbacon",
    g.addEdge null, "hford", "lwilson",
    g.addEdge null, "lwilson", "kbacon",

    renderer = new dagreD3.Renderer().edgeInterpolate("cardinal")
                .edgeTension(0.8)
    renderer.edgeInterpolate('linear');
    renderer.run g, d3.select("svg g")
    d3.select("svg g").on("click", (d, i, k) ->
      console.log d3.select(this) # doesn't seem to have relevant info I need
    )


  init_app()

编辑: 10.09.2014:这里说我必须重写renderer.drawNodes方法：https://github.com/cpettitt/dagre-d3/issues/67

这是指定的代码：

constructor:
  @renderer.drawNodes @_drawNodes().bind @

_drawNodes: ->
  oldDrawNodes = @renderer.drawNodes()
  (graph, svg) ->
    # catch drawed nodes
    svgNodes = oldDrawNodes graph, svg
    svgNodes.on 'click', (nodeId) -> console.log 'node clicked', nodeId

我不知道该怎么用这个代码覆盖.

Answer 1

这个来自Wiki的例子可能对http://cpettitt.github.io/project/dagre-d3/latest/demo/hover.html有帮助。