Function insertChildren

chapter24/docs/d3-graphviz.js:226–250

(element, index)

    });
  }
  function insertChildren(element, index) {
    var children = element.selectAll(function () {
      return element.node().childNodes;
    });
    children = children.data(function (d) {
      return d.children;
    }, function (d) {
      return d.tag + '-' + index;
    });
    var childrenEnter = children.enter().append(function (d) {
      return createElement(d);
    });
    var childrenExit = children.exit();
    childrenExit = childrenExit.remove();
    children = childrenEnter.merge(children);
    var childTagIndexes = {};
    children.each(function (childData) {
      var childTag = childData.tag;
      if (childTagIndexes[childTag] == null) {
        childTagIndexes[childTag] = 0;
      }
      var childIndex = childTagIndexes[childTag]++;
      attributeElement.call(this, childData, childIndex);
    });
  }
  function attributeElement(data) {
    var index = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
    var element = d3__namespace.select(this);