diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1940ecc..be51024 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,21 @@
+<a name="2.1.0"></a>
+# [2.1.0](https://github.com/ErikGartner/dtree/compare/2.0.2...v2.1.0) (2019-02-23)
+
+
+### Bug Fixes
+
+* Bug in build script to update CDN link ([2525601](https://github.com/ErikGartner/dtree/commit/2525601))
+* Missing borders in dTree demo ([5926c15](https://github.com/ErikGartner/dtree/commit/5926c15))
+
+### Features
+
+* Add border to SVG in demo ([7876de6](https://github.com/ErikGartner/dtree/commit/7876de6))
+* Add callback for node width separation #27 ([027de86](https://github.com/ErikGartner/dtree/commit/027de86))
+* Remove unused test stub code ([938395a](https://github.com/ErikGartner/dtree/commit/938395a))
+* Update dependencies with Yarn ([6a207c6](https://github.com/ErikGartner/dtree/commit/6a207c6))
+
+
+
 <a name="2.0.2"></a>
 ## [2.0.2](https://github.com/ErikGartner/dtree/compare/2.0.1...v2.0.2) (2017-05-02)
 
diff --git a/README.md b/README.md
index 317a364..a08a9c9 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ yarn add d3-dtree
 
 Lastly dTree is also available through several CDNs such as [jsDelivr](https://www.jsdelivr.com/package/npm/d3-dtree):
 ```
-https://cdn.jsdelivr.net/npm/d3-dtree@2.0.2/dist/dTree.min.js
+https://cdn.jsdelivr.net/npm/d3-dtree@2.1.0/dist/dTree.min.js
 ```
 
 ## Requirements
diff --git a/dist/dTree.js b/dist/dTree.js
index 16f0f4e..b2ec2f2 100644
--- a/dist/dTree.js
+++ b/dist/dTree.js
@@ -46,7 +46,7 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
         var svg = this.svg = d3.select(opts.target).append('svg').attr('width', width).attr('height', height).call(zoom).append('g').attr('transform', 'translate(' + width / 2 + ',' + opts.margin.top + ')');
 
         // Compute the layout.
-        this.tree = d3.tree().nodeSize([nodeSize[0] * 2, nodeSize[1] * 2.5]);
+        this.tree = d3.tree().nodeSize([nodeSize[0] * 2, opts.callbacks.nodeHeightSeperation(nodeSize[0], nodeSize[1])]);
 
         this.tree.separation(function separation(a, b) {
           if (a.data.hidden || b.data.hidden) {
@@ -216,6 +216,11 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
         return fun(linedata);
       }
     }], [{
+      key: '_nodeHeightSeperation',
+      value: function _nodeHeightSeperation(nodeWidth, nodeMaxHeight) {
+        return nodeMaxHeight + 25;
+      }
+    }, {
       key: '_nodeSize',
       value: function _nodeSize(nodes, width, textRenderer) {
         var maxWidth = 0;
@@ -285,7 +290,7 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
 
   var dTree = {
 
-    VERSION: '2.0.2',
+    VERSION: '2.1.0',
 
     init: function init(data) {
       var options = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
@@ -297,6 +302,9 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
         height: 600,
         callbacks: {
           nodeClick: function nodeClick(name, extra, id) {},
+          nodeHeightSeperation: function nodeHeightSeperation(nodeWidth, nodeMaxHeight) {
+            return TreeBuilder._nodeHeightSeperation(nodeWidth, nodeMaxHeight);
+          },
           nodeRenderer: function nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {
             return TreeBuilder._nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer);
           },
diff --git a/dist/dTree.js.map b/dist/dTree.js.map
index de26da8..71b75b6 100644
--- a/dist/dTree.js.map
+++ b/dist/dTree.js.map
@@ -1 +1 @@
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(global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n\ttypeof define === 'function' && define.amd ? define(factory) :\n\t(global.dTree = factory());\n}(this, (function () { 'use strict';\n\nclass TreeBuilder {\n\n  constructor(root, siblings, opts) {\n    TreeBuilder.DEBUG_LEVEL = opts.debug ? 1 : 0;\n\n    this.root = root;\n    this.siblings = siblings;\n    this.opts = opts;\n\n    // flatten nodes\n    this.allNodes = this._flatten(this.root);\n\n    // Calculate node size\n    let visibleNodes = _.filter(this.allNodes, function(n) {\n      return !n.hidden;\n    });\n    this.nodeSize = opts.callbacks.nodeSize(visibleNodes,\n      opts.nodeWidth, opts.callbacks.textRenderer);\n  }\n\n  create() {\n\n    let opts = this.opts;\n    let allNodes = this.allNodes;\n    let nodeSize = this.nodeSize;\n\n    let width = opts.width + opts.margin.left + opts.margin.right;\n    let height = opts.height + opts.margin.top + opts.margin.bottom;\n\n    let zoom = d3.zoom()\n      .scaleExtent([0.1, 10])\n      .on('zoom', function() {\n        svg.attr('transform', d3.event.transform.translate(width / 2, opts.margin.top));\n      });\n\n    //make an SVG\n    let svg = this.svg = d3.select(opts.target)\n      .append('svg')\n      .attr('width', width)\n      .attr('height', height)\n      .call(zoom)\n      .append('g')\n      .attr('transform', 'translate(' + width / 2 + ',' + opts.margin.top + ')');\n\n    // Compute the layout.\n    this.tree = d3.tree()\n      .nodeSize([nodeSize[0] * 2, nodeSize[1] * 2.5]);\n\n    this.tree.separation(function separation(a, b) {\n      if (a.data.hidden || b.data.hidden) {\n        return 0.3;\n      } else {\n        return 0.6;\n      }\n    });\n\n    this._update(this.root);\n\n  }\n\n  _update(source) {\n\n    let opts = this.opts;\n    let allNodes = this.allNodes;\n    let nodeSize = this.nodeSize;\n\n    let treenodes = this.tree(source);\n    let links = treenodes.links();\n\n    // Create the link lines.\n    this.svg.selectAll('.link')\n      .data(links)\n      .enter()\n      // filter links with no parents to prevent empty nodes\n      .filter(function(l) {\n        return !l.target.data.noParent;\n      })\n      .append('path')\n      .attr('class', opts.styles.linage)\n      .attr('d', this._elbow);\n\n    let nodes = this.svg.selectAll('.node')\n      .data(treenodes.descendants())\n      .enter();\n\n    this._linkSiblings();\n\n    // Draw siblings (marriage)\n    this.svg.selectAll('.sibling')\n      .data(this.siblings)\n      .enter()\n      .append('path')\n      .attr('class', opts.styles.marriage)\n      .attr('d', _.bind(this._siblingLine, this));\n\n    // Create the node rectangles.\n    nodes.append('foreignObject')\n      .filter(function(d) {\n        return d.data.hidden ? false : true;\n      })\n      .attr('x', function(d) {\n        return d.x - d.cWidth / 2 + 'px';\n      })\n      .attr('y', function(d) {\n        return d.y - d.cHeight / 2 + 'px';\n      })\n      .attr('width', function(d) {\n        return d.cWidth + 'px';\n      })\n      .attr('height', function(d) {\n        return d.cHeight + 'px';\n      })\n      .attr('id', function(d) {\n        return d.id;\n      })\n      .html(function(d) {\n        return opts.callbacks.nodeRenderer(\n          d.data.name,\n          d.x,\n          d.y,\n          nodeSize[0],\n          nodeSize[1],\n          d.data.extra,\n          d.data.id,\n          d.data.class,\n          d.data.textClass,\n          opts.callbacks.textRenderer);\n      })\n      .on('click', function(d)  {\n        if (d.data.hidden) {\n          return;\n        }\n        opts.callbacks.nodeClick(d.data.name, d.data.extra, d.data.id);\n      });\n  }\n\n  _flatten(root) {\n    let n = [];\n    let i = 0;\n\n    function recurse(node) {\n      if (node.children) {\n        node.children.forEach(recurse);\n      }\n      if (!node.id) {\n        node.id = ++i;\n      }\n      n.push(node);\n    }\n    recurse(root);\n    return n;\n  }\n\n  _elbow(d, i) {\n    if (d.target.data.noParent) {\n      return 'M0,0L0,0';\n    }\n    let ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n\n    let linedata = [{\n      x: d.target.x,\n      y: d.target.y\n    }, {\n      x: d.target.x,\n      y: ny\n    }, {\n      x: d.source.x,\n      y: d.source.y\n    }];\n\n    let fun = d3.line().curve(d3.curveStepAfter)\n      .x(function(d) {\n        return d.x;\n      })\n      .y(function(d) {\n        return d.y;\n      });\n    return fun(linedata);\n  }\n\n  _linkSiblings() {\n\n    let allNodes = this.allNodes;\n\n    _.forEach(this.siblings, function(d) {\n      let start = allNodes.filter(function(v) {\n        return d.source.id == v.data.id;\n      });\n      let end = allNodes.filter(function(v) {\n        return d.target.id == v.data.id;\n      });\n      d.source.x = start[0].x;\n      d.source.y = start[0].y;\n      d.target.x = end[0].x;\n      d.target.y = end[0].y;\n\n      let marriageId = (start[0].data.marriageNode != null ?\n                        start[0].data.marriageNode.id :\n                        end[0].data.marriageNode.id);\n      let marriageNode = allNodes.find(function(n) {\n        return n.data.id == marriageId;\n      });\n      d.source.marriageNode = marriageNode;\n      d.target.marriageNode = marriageNode;\n    });\n\n  }\n\n  _siblingLine(d, i) {\n\n    let ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n    let nodeWidth = this.nodeSize[0];\n    let nodeHeight = this.nodeSize[1];\n\n    // Not first marriage\n    if (d.number > 0) {\n      ny -= nodeHeight * 8 / 10;\n    }\n\n    let linedata = [{\n      x: d.source.x,\n      y: d.source.y\n    }, {\n      x: d.source.x + nodeWidth * 6 / 10,\n      y: d.source.y\n    }, {\n      x: d.source.x + nodeWidth * 6 / 10,\n      y: ny\n    }, {\n      x: d.target.marriageNode.x,\n      y: ny\n    }, {\n      x: d.target.marriageNode.x,\n      y: d.target.y\n    }, {\n      x: d.target.x,\n      y: d.target.y\n    }];\n\n    let fun = d3.line().curve(d3.curveStepAfter)\n      .x(function(d) {\n        return d.x;\n      })\n      .y(function(d) {\n        return d.y;\n      });\n    return fun(linedata);\n  }\n\n  static _nodeSize(nodes, width, textRenderer) {\n    let maxWidth = 0;\n    let maxHeight = 0;\n    let tmpSvg = document.createElement('svg');\n    document.body.appendChild(tmpSvg);\n\n    _.map(nodes, function(n) {\n      let container = document.createElement('div');\n      container.setAttribute('class', n.data.class);\n      container.style.visibility = 'hidden';\n      container.style.maxWidth = width + 'px';\n\n      let text = textRenderer(n.data.name, n.data.extra, n.data.textClass);\n      container.innerHTML = text;\n\n      tmpSvg.appendChild(container);\n      let height = container.offsetHeight;\n      tmpSvg.removeChild(container);\n\n      maxHeight = Math.max(maxHeight, height);\n      n.cHeight = height;\n      if (n.data.hidden) {\n        n.cWidth = 0;\n      } else {\n        n.cWidth = width;\n      }\n    });\n    document.body.removeChild(tmpSvg);\n\n    return [width, maxHeight];\n  }\n\n  static _nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n    let node = '';\n    node += '<div ';\n    node += 'style=\"height:100%;width:100%;\" ';\n    node += 'class=\"' + nodeClass + '\" ';\n    node += 'id=\"node' + id + '\">\\n';\n    node += textRenderer(name, extra, textClass);\n    node += '</div>';\n    return node;\n  }\n\n  static _textRenderer(name, extra, textClass) {\n    let node = '';\n    node += '<p ';\n    node += 'align=\"center\" ';\n    node += 'class=\"' + textClass + '\">\\n';\n    node += name;\n    node += '</p>\\n';\n    return node;\n  }\n\n  static _debug(msg) {\n    if (TreeBuilder.DEBUG_LEVEL > 0)  {\n      console.log(msg);\n    }\n  }\n\n}\n\nconst dTree = {\n\n  VERSION: '2.0.2',\n\n  init: function(data, options = {}) {\n\n    var opts = _.defaultsDeep(options || {}, {\n      target: '#graph',\n      debug: false,\n      width: 600,\n      height: 600,\n      callbacks: {\n        nodeClick: function(name, extra, id) {},\n        nodeRenderer: function(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n          return TreeBuilder._nodeRenderer(name, x, y, height, width, extra,\n            id,nodeClass, textClass, textRenderer);\n        },\n        nodeSize: function(nodes, width, textRenderer) {\n          return TreeBuilder._nodeSize(nodes, width, textRenderer);\n        },\n        nodeSorter: function(aName, aExtra, bName, bExtra) {return 0;},\n        textRenderer: function(name, extra, textClass) {\n          return TreeBuilder._textRenderer(name, extra, textClass);\n        },\n      },\n      margin: {\n        top: 0,\n        right: 0,\n        bottom: 0,\n        left: 0\n      },\n      nodeWidth: 100,\n      styles: {\n        node: 'node',\n        linage: 'linage',\n        marriage: 'marriage',\n        text: 'nodeText'\n      }\n    });\n\n    var data = this._preprocess(data, opts);\n    var treeBuilder = new TreeBuilder(data.root, data.siblings, opts);\n    treeBuilder.create();\n\n  },\n\n  _preprocess: function(data, opts) {\n\n    var siblings = [];\n    var id = 0;\n\n    var root = {\n      name: '',\n      id: id++,\n      hidden: true,\n      children: []\n    };\n\n    var reconstructTree = function(person, parent) {\n\n      // convert to person to d3 node\n      var node = {\n        name: person.name,\n        id: id++,\n        hidden: false,\n        children: [],\n        extra: person.extra,\n        textClass: person.textClass ? person.textClass : opts.styles.text,\n        class: person.class ? person.class : opts.styles.node\n      };\n\n      // hide linages to the hidden root node\n      if (parent == root) {\n        node.noParent = true;\n      }\n\n      // apply depth offset\n      for (var i = 0; i < person.depthOffset; i++) {\n        var pushNode = {\n          name: '',\n          id: id++,\n          hidden: true,\n          children: [],\n          noParent: node.noParent\n        };\n        parent.children.push(pushNode);\n        parent = pushNode;\n      }\n\n      // sort children\n      dTree._sortPersons(person.children, opts);\n\n      // add \"direct\" children\n      _.forEach(person.children, function(child) {\n        reconstructTree(child, node);\n      });\n\n      parent.children.push(node);\n\n      //sort marriages\n      dTree._sortMarriages(person.marriages, opts);\n\n      // go through marriage\n      _.forEach(person.marriages, function(marriage, index) {\n\n        var m = {\n          name: '',\n          id: id++,\n          hidden: true,\n          noParent: true,\n          children: [],\n          extra: marriage.extra\n        };\n\n        var sp = marriage.spouse;\n\n        var spouse = {\n          name: sp.name,\n          id: id++,\n          hidden: false,\n          noParent: true,\n          children: [],\n          textClass: sp.textClass ? sp.textClass : opts.styles.text,\n          class: sp.class ? sp.class : opts.styles.node,\n          extra: sp.extra,\n          marriageNode: m\n        };\n\n        parent.children.push(m, spouse);\n\n        dTree._sortPersons(marriage.children, opts);\n        _.forEach(marriage.children, function(child) {\n          reconstructTree(child, m);\n        });\n\n        siblings.push({\n          source: {\n            id: node.id\n          },\n          target: {\n            id: spouse.id\n          },\n          number: index\n        });\n      });\n\n    };\n\n    _.forEach(data, function(person) {\n      reconstructTree(person, root);\n    });\n\n    return {\n      root: d3.hierarchy(root),\n      siblings: siblings\n    };\n\n  },\n\n  _sortPersons: function(persons, opts) {\n    if (persons != undefined) {\n      persons.sort(function(a, b) {\n        return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n      });\n    }\n    return persons;\n  },\n\n  _sortMarriages: function(marriages, opts) {\n    if (marriages != undefined && Array.isArray(marriages)) {\n      marriages.sort(function(marriageA, marriageB) {\n        var a = marriageA.spouse;\n        var b = marriageB.spouse;\n        return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n      });\n    }\n    return marriages;\n  }\n\n};\n\nreturn dTree;\n\n})));\n"]}
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(global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n\ttypeof define === 'function' && define.amd ? define(factory) :\n\t(global.dTree = factory());\n}(this, (function () { 'use strict';\n\nclass TreeBuilder {\n\n  constructor(root, siblings, opts) {\n    TreeBuilder.DEBUG_LEVEL = opts.debug ? 1 : 0;\n\n    this.root = root;\n    this.siblings = siblings;\n    this.opts = opts;\n\n    // flatten nodes\n    this.allNodes = this._flatten(this.root);\n\n    // Calculate node size\n    let visibleNodes = _.filter(this.allNodes, function(n) {\n      return !n.hidden;\n    });\n    this.nodeSize = opts.callbacks.nodeSize(visibleNodes,\n      opts.nodeWidth, opts.callbacks.textRenderer);\n  }\n\n  create() {\n\n    let opts = this.opts;\n    let allNodes = this.allNodes;\n    let nodeSize = this.nodeSize;\n\n    let width = opts.width + opts.margin.left + opts.margin.right;\n    let height = opts.height + opts.margin.top + opts.margin.bottom;\n\n    let zoom = d3.zoom()\n      .scaleExtent([0.1, 10])\n      .on('zoom', function() {\n        svg.attr('transform', d3.event.transform.translate(width / 2, opts.margin.top));\n      });\n\n    //make an SVG\n    let svg = this.svg = d3.select(opts.target)\n      .append('svg')\n      .attr('width', width)\n      .attr('height', height)\n      .call(zoom)\n      .append('g')\n      .attr('transform', 'translate(' + width / 2 + ',' + opts.margin.top + ')');\n\n    // Compute the layout.\n    this.tree = d3.tree()\n      .nodeSize([nodeSize[0] * 2,\n                 opts.callbacks.nodeHeightSeperation(nodeSize[0], nodeSize[1])]);\n\n    this.tree.separation(function separation(a, b) {\n      if (a.data.hidden || b.data.hidden) {\n        return 0.3;\n      } else {\n        return 0.6;\n      }\n    });\n\n    this._update(this.root);\n\n  }\n\n  _update(source) {\n\n    let opts = this.opts;\n    let allNodes = this.allNodes;\n    let nodeSize = this.nodeSize;\n\n    let treenodes = this.tree(source);\n    let links = treenodes.links();\n\n    // Create the link lines.\n    this.svg.selectAll('.link')\n      .data(links)\n      .enter()\n      // filter links with no parents to prevent empty nodes\n      .filter(function(l) {\n        return !l.target.data.noParent;\n      })\n      .append('path')\n      .attr('class', opts.styles.linage)\n      .attr('d', this._elbow);\n\n    let nodes = this.svg.selectAll('.node')\n      .data(treenodes.descendants())\n      .enter();\n\n    this._linkSiblings();\n\n    // Draw siblings (marriage)\n    this.svg.selectAll('.sibling')\n      .data(this.siblings)\n      .enter()\n      .append('path')\n      .attr('class', opts.styles.marriage)\n      .attr('d', _.bind(this._siblingLine, this));\n\n    // Create the node rectangles.\n    nodes.append('foreignObject')\n      .filter(function(d) {\n        return d.data.hidden ? false : true;\n      })\n      .attr('x', function(d) {\n        return d.x - d.cWidth / 2 + 'px';\n      })\n      .attr('y', function(d) {\n        return d.y - d.cHeight / 2 + 'px';\n      })\n      .attr('width', function(d) {\n        return d.cWidth + 'px';\n      })\n      .attr('height', function(d) {\n        return d.cHeight + 'px';\n      })\n      .attr('id', function(d) {\n        return d.id;\n      })\n      .html(function(d) {\n        return opts.callbacks.nodeRenderer(\n          d.data.name,\n          d.x,\n          d.y,\n          nodeSize[0],\n          nodeSize[1],\n          d.data.extra,\n          d.data.id,\n          d.data.class,\n          d.data.textClass,\n          opts.callbacks.textRenderer);\n      })\n      .on('click', function(d)  {\n        if (d.data.hidden) {\n          return;\n        }\n        opts.callbacks.nodeClick(d.data.name, d.data.extra, d.data.id);\n      });\n  }\n\n  _flatten(root) {\n    let n = [];\n    let i = 0;\n\n    function recurse(node) {\n      if (node.children) {\n        node.children.forEach(recurse);\n      }\n      if (!node.id) {\n        node.id = ++i;\n      }\n      n.push(node);\n    }\n    recurse(root);\n    return n;\n  }\n\n  _elbow(d, i) {\n    if (d.target.data.noParent) {\n      return 'M0,0L0,0';\n    }\n    let ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n\n    let linedata = [{\n      x: d.target.x,\n      y: d.target.y\n    }, {\n      x: d.target.x,\n      y: ny\n    }, {\n      x: d.source.x,\n      y: d.source.y\n    }];\n\n    let fun = d3.line().curve(d3.curveStepAfter)\n      .x(function(d) {\n        return d.x;\n      })\n      .y(function(d) {\n        return d.y;\n      });\n    return fun(linedata);\n  }\n\n  _linkSiblings() {\n\n    let allNodes = this.allNodes;\n\n    _.forEach(this.siblings, function(d) {\n      let start = allNodes.filter(function(v) {\n        return d.source.id == v.data.id;\n      });\n      let end = allNodes.filter(function(v) {\n        return d.target.id == v.data.id;\n      });\n      d.source.x = start[0].x;\n      d.source.y = start[0].y;\n      d.target.x = end[0].x;\n      d.target.y = end[0].y;\n\n      let marriageId = (start[0].data.marriageNode != null ?\n                        start[0].data.marriageNode.id :\n                        end[0].data.marriageNode.id);\n      let marriageNode = allNodes.find(function(n) {\n        return n.data.id == marriageId;\n      });\n      d.source.marriageNode = marriageNode;\n      d.target.marriageNode = marriageNode;\n    });\n\n  }\n\n  _siblingLine(d, i) {\n\n    let ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n    let nodeWidth = this.nodeSize[0];\n    let nodeHeight = this.nodeSize[1];\n\n    // Not first marriage\n    if (d.number > 0) {\n      ny -= nodeHeight * 8 / 10;\n    }\n\n    let linedata = [{\n      x: d.source.x,\n      y: d.source.y\n    }, {\n      x: d.source.x + nodeWidth * 6 / 10,\n      y: d.source.y\n    }, {\n      x: d.source.x + nodeWidth * 6 / 10,\n      y: ny\n    }, {\n      x: d.target.marriageNode.x,\n      y: ny\n    }, {\n      x: d.target.marriageNode.x,\n      y: d.target.y\n    }, {\n      x: d.target.x,\n      y: d.target.y\n    }];\n\n    let fun = d3.line().curve(d3.curveStepAfter)\n      .x(function(d) {\n        return d.x;\n      })\n      .y(function(d) {\n        return d.y;\n      });\n    return fun(linedata);\n  }\n\n  static _nodeHeightSeperation(nodeWidth, nodeMaxHeight) {\n    return nodeMaxHeight + 25;\n  }\n\n  static _nodeSize(nodes, width, textRenderer) {\n    let maxWidth = 0;\n    let maxHeight = 0;\n    let tmpSvg = document.createElement('svg');\n    document.body.appendChild(tmpSvg);\n\n    _.map(nodes, function(n) {\n      let container = document.createElement('div');\n      container.setAttribute('class', n.data.class);\n      container.style.visibility = 'hidden';\n      container.style.maxWidth = width + 'px';\n\n      let text = textRenderer(n.data.name, n.data.extra, n.data.textClass);\n      container.innerHTML = text;\n\n      tmpSvg.appendChild(container);\n      let height = container.offsetHeight;\n      tmpSvg.removeChild(container);\n\n      maxHeight = Math.max(maxHeight, height);\n      n.cHeight = height;\n      if (n.data.hidden) {\n        n.cWidth = 0;\n      } else {\n        n.cWidth = width;\n      }\n    });\n    document.body.removeChild(tmpSvg);\n\n    return [width, maxHeight];\n  }\n\n  static _nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n    let node = '';\n    node += '<div ';\n    node += 'style=\"height:100%;width:100%;\" ';\n    node += 'class=\"' + nodeClass + '\" ';\n    node += 'id=\"node' + id + '\">\\n';\n    node += textRenderer(name, extra, textClass);\n    node += '</div>';\n    return node;\n  }\n\n  static _textRenderer(name, extra, textClass) {\n    let node = '';\n    node += '<p ';\n    node += 'align=\"center\" ';\n    node += 'class=\"' + textClass + '\">\\n';\n    node += name;\n    node += '</p>\\n';\n    return node;\n  }\n\n  static _debug(msg) {\n    if (TreeBuilder.DEBUG_LEVEL > 0)  {\n      console.log(msg);\n    }\n  }\n\n}\n\nconst dTree = {\n\n  VERSION: '2.1.0',\n\n  init: function(data, options = {}) {\n\n    var opts = _.defaultsDeep(options || {}, {\n      target: '#graph',\n      debug: false,\n      width: 600,\n      height: 600,\n      callbacks: {\n        nodeClick: function(name, extra, id) {},\n        nodeHeightSeperation: function(nodeWidth, nodeMaxHeight) {\n          return TreeBuilder._nodeHeightSeperation(nodeWidth, nodeMaxHeight);\n        },\n        nodeRenderer: function(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n          return TreeBuilder._nodeRenderer(name, x, y, height, width, extra,\n            id,nodeClass, textClass, textRenderer);\n        },\n        nodeSize: function(nodes, width, textRenderer) {\n          return TreeBuilder._nodeSize(nodes, width, textRenderer);\n        },\n        nodeSorter: function(aName, aExtra, bName, bExtra) {return 0;},\n        textRenderer: function(name, extra, textClass) {\n          return TreeBuilder._textRenderer(name, extra, textClass);\n        },\n      },\n      margin: {\n        top: 0,\n        right: 0,\n        bottom: 0,\n        left: 0\n      },\n      nodeWidth: 100,\n      styles: {\n        node: 'node',\n        linage: 'linage',\n        marriage: 'marriage',\n        text: 'nodeText'\n      }\n    });\n\n    var data = this._preprocess(data, opts);\n    var treeBuilder = new TreeBuilder(data.root, data.siblings, opts);\n    treeBuilder.create();\n\n  },\n\n  _preprocess: function(data, opts) {\n\n    var siblings = [];\n    var id = 0;\n\n    var root = {\n      name: '',\n      id: id++,\n      hidden: true,\n      children: []\n    };\n\n    var reconstructTree = function(person, parent) {\n\n      // convert to person to d3 node\n      var node = {\n        name: person.name,\n        id: id++,\n        hidden: false,\n        children: [],\n        extra: person.extra,\n        textClass: person.textClass ? person.textClass : opts.styles.text,\n        class: person.class ? person.class : opts.styles.node\n      };\n\n      // hide linages to the hidden root node\n      if (parent == root) {\n        node.noParent = true;\n      }\n\n      // apply depth offset\n      for (var i = 0; i < person.depthOffset; i++) {\n        var pushNode = {\n          name: '',\n          id: id++,\n          hidden: true,\n          children: [],\n          noParent: node.noParent\n        };\n        parent.children.push(pushNode);\n        parent = pushNode;\n      }\n\n      // sort children\n      dTree._sortPersons(person.children, opts);\n\n      // add \"direct\" children\n      _.forEach(person.children, function(child) {\n        reconstructTree(child, node);\n      });\n\n      parent.children.push(node);\n\n      //sort marriages\n      dTree._sortMarriages(person.marriages, opts);\n\n      // go through marriage\n      _.forEach(person.marriages, function(marriage, index) {\n\n        var m = {\n          name: '',\n          id: id++,\n          hidden: true,\n          noParent: true,\n          children: [],\n          extra: marriage.extra\n        };\n\n        var sp = marriage.spouse;\n\n        var spouse = {\n          name: sp.name,\n          id: id++,\n          hidden: false,\n          noParent: true,\n          children: [],\n          textClass: sp.textClass ? sp.textClass : opts.styles.text,\n          class: sp.class ? sp.class : opts.styles.node,\n          extra: sp.extra,\n          marriageNode: m\n        };\n\n        parent.children.push(m, spouse);\n\n        dTree._sortPersons(marriage.children, opts);\n        _.forEach(marriage.children, function(child) {\n          reconstructTree(child, m);\n        });\n\n        siblings.push({\n          source: {\n            id: node.id\n          },\n          target: {\n            id: spouse.id\n          },\n          number: index\n        });\n      });\n\n    };\n\n    _.forEach(data, function(person) {\n      reconstructTree(person, root);\n    });\n\n    return {\n      root: d3.hierarchy(root),\n      siblings: siblings\n    };\n\n  },\n\n  _sortPersons: function(persons, opts) {\n    if (persons != undefined) {\n      persons.sort(function(a, b) {\n        return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n      });\n    }\n    return persons;\n  },\n\n  _sortMarriages: function(marriages, opts) {\n    if (marriages != undefined && Array.isArray(marriages)) {\n      marriages.sort(function(marriageA, marriageB) {\n        var a = marriageA.spouse;\n        var b = marriageB.spouse;\n        return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n      });\n    }\n    return marriages;\n  }\n\n};\n\nreturn dTree;\n\n})));\n"]}
\ No newline at end of file
diff --git a/dist/dTree.min.js b/dist/dTree.min.js
index da3460c..6f7dc68 100644
--- a/dist/dTree.min.js
+++ b/dist/dTree.min.js
@@ -1,2 +1,2 @@
-function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var _createClass=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}();!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.dTree=t()}(this,function(){"use strict";var e=function(){function e(t,n,r){_classCallCheck(this,e),e.DEBUG_LEVEL=r.debug?1:0,this.root=t,this.siblings=n,this.opts=r,this.allNodes=this._flatten(this.root);var a=_.filter(this.allNodes,function(e){return!e.hidden});this.nodeSize=r.callbacks.nodeSize(a,r.nodeWidth,r.callbacks.textRenderer)}return _createClass(e,[{key:"create",value:function(){var e=this.opts,t=(this.allNodes,this.nodeSize),n=e.width+e.margin.left+e.margin.right,r=e.height+e.margin.top+e.margin.bottom,a=d3.zoom().scaleExtent([.1,10]).on("zoom",function(){i.attr("transform",d3.event.transform.translate(n/2,e.margin.top))}),i=this.svg=d3.select(e.target).append("svg").attr("width",n).attr("height",r).call(a).append("g").attr("transform","translate("+n/2+","+e.margin.top+")");this.tree=d3.tree().nodeSize([2*t[0],2.5*t[1]]),this.tree.separation(function(e,t){return e.data.hidden||t.data.hidden?.3:.6}),this._update(this.root)}},{key:"_update",value:function(e){var t=this.opts,n=(this.allNodes,this.nodeSize),r=this.tree(e),a=r.links();this.svg.selectAll(".link").data(a).enter().filter(function(e){return!e.target.data.noParent}).append("path").attr("class",t.styles.linage).attr("d",this._elbow);var i=this.svg.selectAll(".node").data(r.descendants()).enter();this._linkSiblings(),this.svg.selectAll(".sibling").data(this.siblings).enter().append("path").attr("class",t.styles.marriage).attr("d",_.bind(this._siblingLine,this)),i.append("foreignObject").filter(function(e){return!e.data.hidden}).attr("x",function(e){return e.x-e.cWidth/2+"px"}).attr("y",function(e){return e.y-e.cHeight/2+"px"}).attr("width",function(e){return e.cWidth+"px"}).attr("height",function(e){return e.cHeight+"px"}).attr("id",function(e){return e.id}).html(function(e){return t.callbacks.nodeRenderer(e.data.name,e.x,e.y,n[0],n[1],e.data.extra,e.data.id,e.data["class"],e.data.textClass,t.callbacks.textRenderer)}).on("click",function(e){e.data.hidden||t.callbacks.nodeClick(e.data.name,e.data.extra,e.data.id)})}},{key:"_flatten",value:function(e){function t(e){e.children&&e.children.forEach(t),e.id||(e.id=++r),n.push(e)}var n=[],r=0;return t(e),n}},{key:"_elbow",value:function(e,t){if(e.target.data.noParent)return"M0,0L0,0";var n=e.target.y+.5*(e.source.y-e.target.y),r=[{x:e.target.x,y:e.target.y},{x:e.target.x,y:n},{x:e.source.x,y:e.source.y}],a=d3.line().curve(d3.curveStepAfter).x(function(e){return e.x}).y(function(e){return e.y});return a(r)}},{key:"_linkSiblings",value:function(){var e=this.allNodes;_.forEach(this.siblings,function(t){var n=e.filter(function(e){return t.source.id==e.data.id}),r=e.filter(function(e){return t.target.id==e.data.id});t.source.x=n[0].x,t.source.y=n[0].y,t.target.x=r[0].x,t.target.y=r[0].y;var a=null!=n[0].data.marriageNode?n[0].data.marriageNode.id:r[0].data.marriageNode.id,i=e.find(function(e){return e.data.id==a});t.source.marriageNode=i,t.target.marriageNode=i})}},{key:"_siblingLine",value:function(e,t){var n=e.target.y+.5*(e.source.y-e.target.y),r=this.nodeSize[0],a=this.nodeSize[1];e.number>0&&(n-=8*a/10);var i=[{x:e.source.x,y:e.source.y},{x:e.source.x+6*r/10,y:e.source.y},{x:e.source.x+6*r/10,y:n},{x:e.target.marriageNode.x,y:n},{x:e.target.marriageNode.x,y:e.target.y},{x:e.target.x,y:e.target.y}],s=d3.line().curve(d3.curveStepAfter).x(function(e){return e.x}).y(function(e){return e.y});return s(i)}}],[{key:"_nodeSize",value:function(e,t,n){var r=0,a=document.createElement("svg");return document.body.appendChild(a),_.map(e,function(e){var i=document.createElement("div");i.setAttribute("class",e.data["class"]),i.style.visibility="hidden",i.style.maxWidth=t+"px";var s=n(e.data.name,e.data.extra,e.data.textClass);i.innerHTML=s,a.appendChild(i);var o=i.offsetHeight;a.removeChild(i),r=Math.max(r,o),e.cHeight=o,e.data.hidden?e.cWidth=0:e.cWidth=t}),document.body.removeChild(a),[t,r]}},{key:"_nodeRenderer",value:function(e,t,n,r,a,i,s,o,d,c){var l="";return l+="<div ",l+='style="height:100%;width:100%;" ',l+='class="'+o+'" ',l+='id="node'+s+'">\n',l+=c(e,i,d),l+="</div>"}},{key:"_textRenderer",value:function(e,t,n){var r="";return r+="<p ",r+='align="center" ',r+='class="'+n+'">\n',r+=e,r+="</p>\n"}},{key:"_debug",value:function(t){e.DEBUG_LEVEL>0&&console.log(t)}}]),e}(),t={VERSION:"2.0.2",init:function(t){var n=arguments.length<=1||void 0===arguments[1]?{}:arguments[1],r=_.defaultsDeep(n||{},{target:"#graph",debug:!1,width:600,height:600,callbacks:{nodeClick:function(e,t,n){},nodeRenderer:function(t,n,r,a,i,s,o,d,c,l){return e._nodeRenderer(t,n,r,a,i,s,o,d,c,l)},nodeSize:function(t,n,r){return e._nodeSize(t,n,r)},nodeSorter:function(e,t,n,r){return 0},textRenderer:function(t,n,r){return e._textRenderer(t,n,r)}},margin:{top:0,right:0,bottom:0,left:0},nodeWidth:100,styles:{node:"node",linage:"linage",marriage:"marriage",text:"nodeText"}}),t=this._preprocess(t,r),a=new e(t.root,t.siblings,r);a.create()},_preprocess:function(e,n){var r=[],a=0,i={name:"",id:a++,hidden:!0,children:[]},s=function o(e,s){var d={name:e.name,id:a++,hidden:!1,children:[],extra:e.extra,textClass:e.textClass?e.textClass:n.styles.text,"class":e["class"]?e["class"]:n.styles.node};s==i&&(d.noParent=!0);for(var c=0;c<e.depthOffset;c++){var l={name:"",id:a++,hidden:!0,children:[],noParent:d.noParent};s.children.push(l),s=l}t._sortPersons(e.children,n),_.forEach(e.children,function(e){o(e,d)}),s.children.push(d),t._sortMarriages(e.marriages,n),_.forEach(e.marriages,function(e,i){var c={name:"",id:a++,hidden:!0,noParent:!0,children:[],extra:e.extra},l=e.spouse,u={name:l.name,id:a++,hidden:!1,noParent:!0,children:[],textClass:l.textClass?l.textClass:n.styles.text,"class":l["class"]?l["class"]:n.styles.node,extra:l.extra,marriageNode:c};s.children.push(c,u),t._sortPersons(e.children,n),_.forEach(e.children,function(e){o(e,c)}),r.push({source:{id:d.id},target:{id:u.id},number:i})})};return _.forEach(e,function(e){s(e,i)}),{root:d3.hierarchy(i),siblings:r}},_sortPersons:function(e,t){return void 0!=e&&e.sort(function(e,n){return t.callbacks.nodeSorter(e.name,e.extra,n.name,n.extra)}),e},_sortMarriages:function(e,t){return void 0!=e&&Array.isArray(e)&&e.sort(function(e,n){var r=e.spouse,a=n.spouse;return t.callbacks.nodeSorter(r.name,r.extra,a.name,a.extra)}),e}};return t});
+function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var _createClass=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}();!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.dTree=t()}(this,function(){"use strict";var e=function(){function e(t,n,r){_classCallCheck(this,e),e.DEBUG_LEVEL=r.debug?1:0,this.root=t,this.siblings=n,this.opts=r,this.allNodes=this._flatten(this.root);var a=_.filter(this.allNodes,function(e){return!e.hidden});this.nodeSize=r.callbacks.nodeSize(a,r.nodeWidth,r.callbacks.textRenderer)}return _createClass(e,[{key:"create",value:function(){var e=this.opts,t=(this.allNodes,this.nodeSize),n=e.width+e.margin.left+e.margin.right,r=e.height+e.margin.top+e.margin.bottom,a=d3.zoom().scaleExtent([.1,10]).on("zoom",function(){i.attr("transform",d3.event.transform.translate(n/2,e.margin.top))}),i=this.svg=d3.select(e.target).append("svg").attr("width",n).attr("height",r).call(a).append("g").attr("transform","translate("+n/2+","+e.margin.top+")");this.tree=d3.tree().nodeSize([2*t[0],e.callbacks.nodeHeightSeperation(t[0],t[1])]),this.tree.separation(function(e,t){return e.data.hidden||t.data.hidden?.3:.6}),this._update(this.root)}},{key:"_update",value:function(e){var t=this.opts,n=(this.allNodes,this.nodeSize),r=this.tree(e),a=r.links();this.svg.selectAll(".link").data(a).enter().filter(function(e){return!e.target.data.noParent}).append("path").attr("class",t.styles.linage).attr("d",this._elbow);var i=this.svg.selectAll(".node").data(r.descendants()).enter();this._linkSiblings(),this.svg.selectAll(".sibling").data(this.siblings).enter().append("path").attr("class",t.styles.marriage).attr("d",_.bind(this._siblingLine,this)),i.append("foreignObject").filter(function(e){return!e.data.hidden}).attr("x",function(e){return e.x-e.cWidth/2+"px"}).attr("y",function(e){return e.y-e.cHeight/2+"px"}).attr("width",function(e){return e.cWidth+"px"}).attr("height",function(e){return e.cHeight+"px"}).attr("id",function(e){return e.id}).html(function(e){return t.callbacks.nodeRenderer(e.data.name,e.x,e.y,n[0],n[1],e.data.extra,e.data.id,e.data["class"],e.data.textClass,t.callbacks.textRenderer)}).on("click",function(e){e.data.hidden||t.callbacks.nodeClick(e.data.name,e.data.extra,e.data.id)})}},{key:"_flatten",value:function(e){function t(e){e.children&&e.children.forEach(t),e.id||(e.id=++r),n.push(e)}var n=[],r=0;return 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 //# sourceMappingURL=dTree.min.js.map
diff --git a/dist/dTree.min.js.map b/dist/dTree.min.js.map
index b84db5d..34095b6 100644
--- a/dist/dTree.min.js.map
+++ b/dist/dTree.min.js.map
@@ -1 +1 @@
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_createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }\n\n(function (global, factory) {\n  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : typeof define === 'function' && define.amd ? define(factory) : global.dTree = factory();\n})(this, function () {\n  'use strict';\n\n  var TreeBuilder = (function () {\n    function TreeBuilder(root, siblings, opts) {\n      _classCallCheck(this, TreeBuilder);\n\n      TreeBuilder.DEBUG_LEVEL = opts.debug ? 1 : 0;\n\n      this.root = root;\n      this.siblings = siblings;\n      this.opts = opts;\n\n      // flatten nodes\n      this.allNodes = this._flatten(this.root);\n\n      // Calculate node size\n      var visibleNodes = _.filter(this.allNodes, function (n) {\n        return !n.hidden;\n      });\n      this.nodeSize = opts.callbacks.nodeSize(visibleNodes, opts.nodeWidth, opts.callbacks.textRenderer);\n    }\n\n    _createClass(TreeBuilder, [{\n      key: 'create',\n      value: function create() {\n\n        var opts = this.opts;\n        var allNodes = this.allNodes;\n        var nodeSize = this.nodeSize;\n\n        var width = opts.width + opts.margin.left + opts.margin.right;\n        var height = opts.height + opts.margin.top + opts.margin.bottom;\n\n        var zoom = d3.zoom().scaleExtent([0.1, 10]).on('zoom', function () {\n          svg.attr('transform', d3.event.transform.translate(width / 2, opts.margin.top));\n        });\n\n        //make an SVG\n        var svg = this.svg = d3.select(opts.target).append('svg').attr('width', width).attr('height', height).call(zoom).append('g').attr('transform', 'translate(' + width / 2 + ',' + opts.margin.top + ')');\n\n        // Compute the layout.\n        this.tree = d3.tree().nodeSize([nodeSize[0] * 2, nodeSize[1] * 2.5]);\n\n        this.tree.separation(function separation(a, b) {\n          if (a.data.hidden || b.data.hidden) {\n            return 0.3;\n          } else {\n            return 0.6;\n          }\n        });\n\n        this._update(this.root);\n      }\n    }, {\n      key: '_update',\n      value: function _update(source) {\n\n        var opts = this.opts;\n        var allNodes = this.allNodes;\n        var nodeSize = this.nodeSize;\n\n        var treenodes = this.tree(source);\n        var links = treenodes.links();\n\n        // Create the link lines.\n        this.svg.selectAll('.link').data(links).enter()\n        // filter links with no parents to prevent empty nodes\n        .filter(function (l) {\n          return !l.target.data.noParent;\n        }).append('path').attr('class', opts.styles.linage).attr('d', this._elbow);\n\n        var nodes = this.svg.selectAll('.node').data(treenodes.descendants()).enter();\n\n        this._linkSiblings();\n\n        // Draw siblings (marriage)\n        this.svg.selectAll('.sibling').data(this.siblings).enter().append('path').attr('class', opts.styles.marriage).attr('d', _.bind(this._siblingLine, this));\n\n        // Create the node rectangles.\n        nodes.append('foreignObject').filter(function (d) {\n          return d.data.hidden ? false : true;\n        }).attr('x', function (d) {\n          return d.x - d.cWidth / 2 + 'px';\n        }).attr('y', function (d) {\n          return d.y - d.cHeight / 2 + 'px';\n        }).attr('width', function (d) {\n          return d.cWidth + 'px';\n        }).attr('height', function (d) {\n          return d.cHeight + 'px';\n        }).attr('id', function (d) {\n          return d.id;\n        }).html(function (d) {\n          return opts.callbacks.nodeRenderer(d.data.name, d.x, d.y, nodeSize[0], nodeSize[1], d.data.extra, d.data.id, d.data['class'], d.data.textClass, opts.callbacks.textRenderer);\n        }).on('click', function (d) {\n          if (d.data.hidden) {\n            return;\n          }\n          opts.callbacks.nodeClick(d.data.name, d.data.extra, d.data.id);\n        });\n      }\n    }, {\n      key: '_flatten',\n      value: function _flatten(root) {\n        var n = [];\n        var i = 0;\n\n        function recurse(node) {\n          if (node.children) {\n            node.children.forEach(recurse);\n          }\n          if (!node.id) {\n            node.id = ++i;\n          }\n          n.push(node);\n        }\n        recurse(root);\n        return n;\n      }\n    }, {\n      key: '_elbow',\n      value: function _elbow(d, i) {\n        if (d.target.data.noParent) {\n          return 'M0,0L0,0';\n        }\n        var ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n\n        var linedata = [{\n          x: d.target.x,\n          y: d.target.y\n        }, {\n          x: d.target.x,\n          y: ny\n        }, {\n          x: d.source.x,\n          y: d.source.y\n        }];\n\n        var fun = d3.line().curve(d3.curveStepAfter).x(function (d) {\n          return d.x;\n        }).y(function (d) {\n          return d.y;\n        });\n        return fun(linedata);\n      }\n    }, {\n      key: '_linkSiblings',\n      value: function _linkSiblings() {\n\n        var allNodes = this.allNodes;\n\n        _.forEach(this.siblings, function (d) {\n          var start = allNodes.filter(function (v) {\n            return d.source.id == v.data.id;\n          });\n          var end = allNodes.filter(function (v) {\n            return d.target.id == v.data.id;\n          });\n          d.source.x = start[0].x;\n          d.source.y = start[0].y;\n          d.target.x = end[0].x;\n          d.target.y = end[0].y;\n\n          var marriageId = start[0].data.marriageNode != null ? start[0].data.marriageNode.id : end[0].data.marriageNode.id;\n          var marriageNode = allNodes.find(function (n) {\n            return n.data.id == marriageId;\n          });\n          d.source.marriageNode = marriageNode;\n          d.target.marriageNode = marriageNode;\n        });\n      }\n    }, {\n      key: '_siblingLine',\n      value: function _siblingLine(d, i) {\n\n        var ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n        var nodeWidth = this.nodeSize[0];\n        var nodeHeight = this.nodeSize[1];\n\n        // Not first marriage\n        if (d.number > 0) {\n          ny -= nodeHeight * 8 / 10;\n        }\n\n        var linedata = [{\n          x: d.source.x,\n          y: d.source.y\n        }, {\n          x: d.source.x + nodeWidth * 6 / 10,\n          y: d.source.y\n        }, {\n          x: d.source.x + nodeWidth * 6 / 10,\n          y: ny\n        }, {\n          x: d.target.marriageNode.x,\n          y: ny\n        }, {\n          x: d.target.marriageNode.x,\n          y: d.target.y\n        }, {\n          x: d.target.x,\n          y: d.target.y\n        }];\n\n        var fun = d3.line().curve(d3.curveStepAfter).x(function (d) {\n          return d.x;\n        }).y(function (d) {\n          return d.y;\n        });\n        return fun(linedata);\n      }\n    }], [{\n      key: '_nodeSize',\n      value: function _nodeSize(nodes, width, textRenderer) {\n        var maxWidth = 0;\n        var maxHeight = 0;\n        var tmpSvg = document.createElement('svg');\n        document.body.appendChild(tmpSvg);\n\n        _.map(nodes, function (n) {\n          var container = document.createElement('div');\n          container.setAttribute('class', n.data['class']);\n          container.style.visibility = 'hidden';\n          container.style.maxWidth = width + 'px';\n\n          var text = textRenderer(n.data.name, n.data.extra, n.data.textClass);\n          container.innerHTML = text;\n\n          tmpSvg.appendChild(container);\n          var height = container.offsetHeight;\n          tmpSvg.removeChild(container);\n\n          maxHeight = Math.max(maxHeight, height);\n          n.cHeight = height;\n          if (n.data.hidden) {\n            n.cWidth = 0;\n          } else {\n            n.cWidth = width;\n          }\n        });\n        document.body.removeChild(tmpSvg);\n\n        return [width, maxHeight];\n      }\n    }, {\n      key: '_nodeRenderer',\n      value: function _nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n        var node = '';\n        node += '<div ';\n        node += 'style=\"height:100%;width:100%;\" ';\n        node += 'class=\"' + nodeClass + '\" ';\n        node += 'id=\"node' + id + '\">\\n';\n        node += textRenderer(name, extra, textClass);\n        node += '</div>';\n        return node;\n      }\n    }, {\n      key: '_textRenderer',\n      value: function _textRenderer(name, extra, textClass) {\n        var node = '';\n        node += '<p ';\n        node += 'align=\"center\" ';\n        node += 'class=\"' + textClass + '\">\\n';\n        node += name;\n        node += '</p>\\n';\n        return node;\n      }\n    }, {\n      key: '_debug',\n      value: function _debug(msg) {\n        if (TreeBuilder.DEBUG_LEVEL > 0) {\n          console.log(msg);\n        }\n      }\n    }]);\n\n    return TreeBuilder;\n  })();\n\n  var dTree = {\n\n    VERSION: '2.0.2',\n\n    init: function init(data) {\n      var options = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];\n\n      var opts = _.defaultsDeep(options || {}, {\n        target: '#graph',\n        debug: false,\n        width: 600,\n        height: 600,\n        callbacks: {\n          nodeClick: function nodeClick(name, extra, id) {},\n          nodeRenderer: function nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n            return TreeBuilder._nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer);\n          },\n          nodeSize: function nodeSize(nodes, width, textRenderer) {\n            return TreeBuilder._nodeSize(nodes, width, textRenderer);\n          },\n          nodeSorter: function nodeSorter(aName, aExtra, bName, bExtra) {\n            return 0;\n          },\n          textRenderer: function textRenderer(name, extra, textClass) {\n            return TreeBuilder._textRenderer(name, extra, textClass);\n          }\n        },\n        margin: {\n          top: 0,\n          right: 0,\n          bottom: 0,\n          left: 0\n        },\n        nodeWidth: 100,\n        styles: {\n          node: 'node',\n          linage: 'linage',\n          marriage: 'marriage',\n          text: 'nodeText'\n        }\n      });\n\n      var data = this._preprocess(data, opts);\n      var treeBuilder = new TreeBuilder(data.root, data.siblings, opts);\n      treeBuilder.create();\n    },\n\n    _preprocess: function _preprocess(data, opts) {\n\n      var siblings = [];\n      var id = 0;\n\n      var root = {\n        name: '',\n        id: id++,\n        hidden: true,\n        children: []\n      };\n\n      var reconstructTree = function reconstructTree(person, parent) {\n\n        // convert to person to d3 node\n        var node = {\n          name: person.name,\n          id: id++,\n          hidden: false,\n          children: [],\n          extra: person.extra,\n          textClass: person.textClass ? person.textClass : opts.styles.text,\n          'class': person['class'] ? person['class'] : opts.styles.node\n        };\n\n        // hide linages to the hidden root node\n        if (parent == root) {\n          node.noParent = true;\n        }\n\n        // apply depth offset\n        for (var i = 0; i < person.depthOffset; i++) {\n          var pushNode = {\n            name: '',\n            id: id++,\n            hidden: true,\n            children: [],\n            noParent: node.noParent\n          };\n          parent.children.push(pushNode);\n          parent = pushNode;\n        }\n\n        // sort children\n        dTree._sortPersons(person.children, opts);\n\n        // add \"direct\" children\n        _.forEach(person.children, function (child) {\n          reconstructTree(child, node);\n        });\n\n        parent.children.push(node);\n\n        //sort marriages\n        dTree._sortMarriages(person.marriages, opts);\n\n        // go through marriage\n        _.forEach(person.marriages, function (marriage, index) {\n\n          var m = {\n            name: '',\n            id: id++,\n            hidden: true,\n            noParent: true,\n            children: [],\n            extra: marriage.extra\n          };\n\n          var sp = marriage.spouse;\n\n          var spouse = {\n            name: sp.name,\n            id: id++,\n            hidden: false,\n            noParent: true,\n            children: [],\n            textClass: sp.textClass ? sp.textClass : opts.styles.text,\n            'class': sp['class'] ? sp['class'] : opts.styles.node,\n            extra: sp.extra,\n            marriageNode: m\n          };\n\n          parent.children.push(m, spouse);\n\n          dTree._sortPersons(marriage.children, opts);\n          _.forEach(marriage.children, function (child) {\n            reconstructTree(child, m);\n          });\n\n          siblings.push({\n            source: {\n              id: node.id\n            },\n            target: {\n              id: spouse.id\n            },\n            number: index\n          });\n        });\n      };\n\n      _.forEach(data, function (person) {\n        reconstructTree(person, root);\n      });\n\n      return {\n        root: d3.hierarchy(root),\n        siblings: siblings\n      };\n    },\n\n    _sortPersons: function _sortPersons(persons, opts) {\n      if (persons != undefined) {\n        persons.sort(function (a, b) {\n          return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n        });\n      }\n      return persons;\n    },\n\n    _sortMarriages: function _sortMarriages(marriages, opts) {\n      if (marriages != undefined && Array.isArray(marriages)) {\n        marriages.sort(function (marriageA, marriageB) {\n          var a = marriageA.spouse;\n          var b = marriageB.spouse;\n          return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n        });\n      }\n      return marriages;\n    }\n\n  };\n\n  return dTree;\n});\n//# sourceMappingURL=dTree.js.map\n","(function (global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n\ttypeof define === 'function' && define.amd ? define(factory) :\n\t(global.dTree = factory());\n}(this, (function () { 'use strict';\n\nclass TreeBuilder {\n\n  constructor(root, siblings, opts) {\n    TreeBuilder.DEBUG_LEVEL = opts.debug ? 1 : 0;\n\n    this.root = root;\n    this.siblings = siblings;\n    this.opts = opts;\n\n    // flatten nodes\n    this.allNodes = this._flatten(this.root);\n\n    // Calculate node size\n    let visibleNodes = _.filter(this.allNodes, function(n) {\n      return !n.hidden;\n    });\n    this.nodeSize = opts.callbacks.nodeSize(visibleNodes,\n      opts.nodeWidth, opts.callbacks.textRenderer);\n  }\n\n  create() {\n\n    let opts = this.opts;\n    let allNodes = this.allNodes;\n    let nodeSize = this.nodeSize;\n\n    let width = opts.width + opts.margin.left + opts.margin.right;\n    let height = opts.height + opts.margin.top + opts.margin.bottom;\n\n    let zoom = d3.zoom()\n      .scaleExtent([0.1, 10])\n      .on('zoom', function() {\n        svg.attr('transform', d3.event.transform.translate(width / 2, opts.margin.top));\n      });\n\n    //make an SVG\n    let svg = this.svg = d3.select(opts.target)\n      .append('svg')\n      .attr('width', width)\n      .attr('height', height)\n      .call(zoom)\n      .append('g')\n      .attr('transform', 'translate(' + width / 2 + ',' + opts.margin.top + ')');\n\n    // Compute the layout.\n    this.tree = d3.tree()\n      .nodeSize([nodeSize[0] * 2, nodeSize[1] * 2.5]);\n\n    this.tree.separation(function separation(a, b) {\n      if (a.data.hidden || b.data.hidden) {\n        return 0.3;\n      } else {\n        return 0.6;\n      }\n    });\n\n    this._update(this.root);\n\n  }\n\n  _update(source) {\n\n    let opts = this.opts;\n    let allNodes = this.allNodes;\n    let nodeSize = this.nodeSize;\n\n    let treenodes = this.tree(source);\n    let links = treenodes.links();\n\n    // Create the link lines.\n    this.svg.selectAll('.link')\n      .data(links)\n      .enter()\n      // filter links with no parents to prevent empty nodes\n      .filter(function(l) {\n        return !l.target.data.noParent;\n      })\n      .append('path')\n      .attr('class', opts.styles.linage)\n      .attr('d', this._elbow);\n\n    let nodes = this.svg.selectAll('.node')\n      .data(treenodes.descendants())\n      .enter();\n\n    this._linkSiblings();\n\n    // Draw siblings (marriage)\n    this.svg.selectAll('.sibling')\n      .data(this.siblings)\n      .enter()\n      .append('path')\n      .attr('class', opts.styles.marriage)\n      .attr('d', _.bind(this._siblingLine, this));\n\n    // Create the node rectangles.\n    nodes.append('foreignObject')\n      .filter(function(d) {\n        return d.data.hidden ? false : true;\n      })\n      .attr('x', function(d) {\n        return d.x - d.cWidth / 2 + 'px';\n      })\n      .attr('y', function(d) {\n        return d.y - d.cHeight / 2 + 'px';\n      })\n      .attr('width', function(d) {\n        return d.cWidth + 'px';\n      })\n      .attr('height', function(d) {\n        return d.cHeight + 'px';\n      })\n      .attr('id', function(d) {\n        return d.id;\n      })\n      .html(function(d) {\n        return opts.callbacks.nodeRenderer(\n          d.data.name,\n          d.x,\n          d.y,\n          nodeSize[0],\n          nodeSize[1],\n          d.data.extra,\n          d.data.id,\n          d.data.class,\n          d.data.textClass,\n          opts.callbacks.textRenderer);\n      })\n      .on('click', function(d)  {\n        if (d.data.hidden) {\n          return;\n        }\n        opts.callbacks.nodeClick(d.data.name, d.data.extra, d.data.id);\n      });\n  }\n\n  _flatten(root) {\n    let n = [];\n    let i = 0;\n\n    function recurse(node) {\n      if (node.children) {\n        node.children.forEach(recurse);\n      }\n      if (!node.id) {\n        node.id = ++i;\n      }\n      n.push(node);\n    }\n    recurse(root);\n    return n;\n  }\n\n  _elbow(d, i) {\n    if (d.target.data.noParent) {\n      return 'M0,0L0,0';\n    }\n    let ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n\n    let linedata = [{\n      x: d.target.x,\n      y: d.target.y\n    }, {\n      x: d.target.x,\n      y: ny\n    }, {\n      x: d.source.x,\n      y: d.source.y\n    }];\n\n    let fun = d3.line().curve(d3.curveStepAfter)\n      .x(function(d) {\n        return d.x;\n      })\n      .y(function(d) {\n        return d.y;\n      });\n    return fun(linedata);\n  }\n\n  _linkSiblings() {\n\n    let allNodes = this.allNodes;\n\n    _.forEach(this.siblings, function(d) {\n      let start = allNodes.filter(function(v) {\n        return d.source.id == v.data.id;\n      });\n      let end = allNodes.filter(function(v) {\n        return d.target.id == v.data.id;\n      });\n      d.source.x = start[0].x;\n      d.source.y = start[0].y;\n      d.target.x = end[0].x;\n      d.target.y = end[0].y;\n\n      let marriageId = (start[0].data.marriageNode != null ?\n                        start[0].data.marriageNode.id :\n                        end[0].data.marriageNode.id);\n      let marriageNode = allNodes.find(function(n) {\n        return n.data.id == marriageId;\n      });\n      d.source.marriageNode = marriageNode;\n      d.target.marriageNode = marriageNode;\n    });\n\n  }\n\n  _siblingLine(d, i) {\n\n    let ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n    let nodeWidth = this.nodeSize[0];\n    let nodeHeight = this.nodeSize[1];\n\n    // Not first marriage\n    if (d.number > 0) {\n      ny -= nodeHeight * 8 / 10;\n    }\n\n    let linedata = [{\n      x: d.source.x,\n      y: d.source.y\n    }, {\n      x: d.source.x + nodeWidth * 6 / 10,\n      y: d.source.y\n    }, {\n      x: d.source.x + nodeWidth * 6 / 10,\n      y: ny\n    }, {\n      x: d.target.marriageNode.x,\n      y: ny\n    }, {\n      x: d.target.marriageNode.x,\n      y: d.target.y\n    }, {\n      x: d.target.x,\n      y: d.target.y\n    }];\n\n    let fun = d3.line().curve(d3.curveStepAfter)\n      .x(function(d) {\n        return d.x;\n      })\n      .y(function(d) {\n        return d.y;\n      });\n    return fun(linedata);\n  }\n\n  static _nodeSize(nodes, width, textRenderer) {\n    let maxWidth = 0;\n    let maxHeight = 0;\n    let tmpSvg = document.createElement('svg');\n    document.body.appendChild(tmpSvg);\n\n    _.map(nodes, function(n) {\n      let container = document.createElement('div');\n      container.setAttribute('class', n.data.class);\n      container.style.visibility = 'hidden';\n      container.style.maxWidth = width + 'px';\n\n      let text = textRenderer(n.data.name, n.data.extra, n.data.textClass);\n      container.innerHTML = text;\n\n      tmpSvg.appendChild(container);\n      let height = container.offsetHeight;\n      tmpSvg.removeChild(container);\n\n      maxHeight = Math.max(maxHeight, height);\n      n.cHeight = height;\n      if (n.data.hidden) {\n        n.cWidth = 0;\n      } else {\n        n.cWidth = width;\n      }\n    });\n    document.body.removeChild(tmpSvg);\n\n    return [width, maxHeight];\n  }\n\n  static _nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n    let node = '';\n    node += '<div ';\n    node += 'style=\"height:100%;width:100%;\" ';\n    node += 'class=\"' + nodeClass + '\" ';\n    node += 'id=\"node' + id + '\">\\n';\n    node += textRenderer(name, extra, textClass);\n    node += '</div>';\n    return node;\n  }\n\n  static _textRenderer(name, extra, textClass) {\n    let node = '';\n    node += '<p ';\n    node += 'align=\"center\" ';\n    node += 'class=\"' + textClass + '\">\\n';\n    node += name;\n    node += '</p>\\n';\n    return node;\n  }\n\n  static _debug(msg) {\n    if (TreeBuilder.DEBUG_LEVEL > 0)  {\n      console.log(msg);\n    }\n  }\n\n}\n\nconst dTree = {\n\n  VERSION: '2.0.2',\n\n  init: function(data, options = {}) {\n\n    var opts = _.defaultsDeep(options || {}, {\n      target: '#graph',\n      debug: false,\n      width: 600,\n      height: 600,\n      callbacks: {\n        nodeClick: function(name, extra, id) {},\n        nodeRenderer: function(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n          return TreeBuilder._nodeRenderer(name, x, y, height, width, extra,\n            id,nodeClass, textClass, textRenderer);\n        },\n        nodeSize: function(nodes, width, textRenderer) {\n          return TreeBuilder._nodeSize(nodes, width, textRenderer);\n        },\n        nodeSorter: function(aName, aExtra, bName, bExtra) {return 0;},\n        textRenderer: function(name, extra, textClass) {\n          return TreeBuilder._textRenderer(name, extra, textClass);\n        },\n      },\n      margin: {\n        top: 0,\n        right: 0,\n        bottom: 0,\n        left: 0\n      },\n      nodeWidth: 100,\n      styles: {\n        node: 'node',\n        linage: 'linage',\n        marriage: 'marriage',\n        text: 'nodeText'\n      }\n    });\n\n    var data = this._preprocess(data, opts);\n    var treeBuilder = new TreeBuilder(data.root, data.siblings, opts);\n    treeBuilder.create();\n\n  },\n\n  _preprocess: function(data, opts) {\n\n    var siblings = [];\n    var id = 0;\n\n    var root = {\n      name: '',\n      id: id++,\n      hidden: true,\n      children: []\n    };\n\n    var reconstructTree = function(person, parent) {\n\n      // convert to person to d3 node\n      var node = {\n        name: person.name,\n        id: id++,\n        hidden: false,\n        children: [],\n        extra: person.extra,\n        textClass: person.textClass ? person.textClass : opts.styles.text,\n        class: person.class ? person.class : opts.styles.node\n      };\n\n      // hide linages to the hidden root node\n      if (parent == root) {\n        node.noParent = true;\n      }\n\n      // apply depth offset\n      for (var i = 0; i < person.depthOffset; i++) {\n        var pushNode = {\n          name: '',\n          id: id++,\n          hidden: true,\n          children: [],\n          noParent: node.noParent\n        };\n        parent.children.push(pushNode);\n        parent = pushNode;\n      }\n\n      // sort children\n      dTree._sortPersons(person.children, opts);\n\n      // add \"direct\" children\n      _.forEach(person.children, function(child) {\n        reconstructTree(child, node);\n      });\n\n      parent.children.push(node);\n\n      //sort marriages\n      dTree._sortMarriages(person.marriages, opts);\n\n      // go through marriage\n      _.forEach(person.marriages, function(marriage, index) {\n\n        var m = {\n          name: '',\n          id: id++,\n          hidden: true,\n          noParent: true,\n          children: [],\n          extra: marriage.extra\n        };\n\n        var sp = marriage.spouse;\n\n        var spouse = {\n          name: sp.name,\n          id: id++,\n          hidden: false,\n          noParent: true,\n          children: [],\n          textClass: sp.textClass ? sp.textClass : opts.styles.text,\n          class: sp.class ? sp.class : opts.styles.node,\n          extra: sp.extra,\n          marriageNode: m\n        };\n\n        parent.children.push(m, spouse);\n\n        dTree._sortPersons(marriage.children, opts);\n        _.forEach(marriage.children, function(child) {\n          reconstructTree(child, m);\n        });\n\n        siblings.push({\n          source: {\n            id: node.id\n          },\n          target: {\n            id: spouse.id\n          },\n          number: index\n        });\n      });\n\n    };\n\n    _.forEach(data, function(person) {\n      reconstructTree(person, root);\n    });\n\n    return {\n      root: d3.hierarchy(root),\n      siblings: siblings\n    };\n\n  },\n\n  _sortPersons: function(persons, opts) {\n    if (persons != undefined) {\n      persons.sort(function(a, b) {\n        return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n      });\n    }\n    return persons;\n  },\n\n  _sortMarriages: function(marriages, opts) {\n    if (marriages != undefined && Array.isArray(marriages)) {\n      marriages.sort(function(marriageA, marriageB) {\n        var a = marriageA.spouse;\n        var b = marriageB.spouse;\n        return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n      });\n    }\n    return marriages;\n  }\n\n};\n\nreturn dTree;\n\n})));\n"]}
\ No newline at end of file
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(function () {\n    function TreeBuilder(root, siblings, opts) {\n      _classCallCheck(this, TreeBuilder);\n\n      TreeBuilder.DEBUG_LEVEL = opts.debug ? 1 : 0;\n\n      this.root = root;\n      this.siblings = siblings;\n      this.opts = opts;\n\n      // flatten nodes\n      this.allNodes = this._flatten(this.root);\n\n      // Calculate node size\n      var visibleNodes = _.filter(this.allNodes, function (n) {\n        return !n.hidden;\n      });\n      this.nodeSize = opts.callbacks.nodeSize(visibleNodes, opts.nodeWidth, opts.callbacks.textRenderer);\n    }\n\n    _createClass(TreeBuilder, [{\n      key: 'create',\n      value: function create() {\n\n        var opts = this.opts;\n        var allNodes = this.allNodes;\n        var nodeSize = this.nodeSize;\n\n        var width = opts.width + opts.margin.left + opts.margin.right;\n        var height = opts.height + opts.margin.top + opts.margin.bottom;\n\n        var zoom = d3.zoom().scaleExtent([0.1, 10]).on('zoom', function () {\n          svg.attr('transform', d3.event.transform.translate(width / 2, opts.margin.top));\n        });\n\n        //make an SVG\n        var svg = this.svg = d3.select(opts.target).append('svg').attr('width', width).attr('height', height).call(zoom).append('g').attr('transform', 'translate(' + width / 2 + ',' + opts.margin.top + ')');\n\n        // Compute the layout.\n        this.tree = d3.tree().nodeSize([nodeSize[0] * 2, opts.callbacks.nodeHeightSeperation(nodeSize[0], nodeSize[1])]);\n\n        this.tree.separation(function separation(a, b) {\n          if (a.data.hidden || b.data.hidden) {\n            return 0.3;\n          } else {\n            return 0.6;\n          }\n        });\n\n        this._update(this.root);\n      }\n    }, {\n      key: '_update',\n      value: function _update(source) {\n\n        var opts = this.opts;\n        var allNodes = this.allNodes;\n        var nodeSize = this.nodeSize;\n\n        var treenodes = this.tree(source);\n        var links = treenodes.links();\n\n        // Create the link lines.\n        this.svg.selectAll('.link').data(links).enter()\n        // filter links with no parents to prevent empty nodes\n        .filter(function (l) {\n          return !l.target.data.noParent;\n        }).append('path').attr('class', opts.styles.linage).attr('d', this._elbow);\n\n        var nodes = this.svg.selectAll('.node').data(treenodes.descendants()).enter();\n\n        this._linkSiblings();\n\n        // Draw siblings (marriage)\n        this.svg.selectAll('.sibling').data(this.siblings).enter().append('path').attr('class', opts.styles.marriage).attr('d', _.bind(this._siblingLine, this));\n\n        // Create the node rectangles.\n        nodes.append('foreignObject').filter(function (d) {\n          return d.data.hidden ? false : true;\n        }).attr('x', function (d) {\n          return d.x - d.cWidth / 2 + 'px';\n        }).attr('y', function (d) {\n          return d.y - d.cHeight / 2 + 'px';\n        }).attr('width', function (d) {\n          return d.cWidth + 'px';\n        }).attr('height', function (d) {\n          return d.cHeight + 'px';\n        }).attr('id', function (d) {\n          return d.id;\n        }).html(function (d) {\n          return opts.callbacks.nodeRenderer(d.data.name, d.x, d.y, nodeSize[0], nodeSize[1], d.data.extra, d.data.id, d.data['class'], d.data.textClass, opts.callbacks.textRenderer);\n        }).on('click', function (d) {\n          if (d.data.hidden) {\n            return;\n          }\n          opts.callbacks.nodeClick(d.data.name, d.data.extra, d.data.id);\n        });\n      }\n    }, {\n      key: '_flatten',\n      value: function _flatten(root) {\n        var n = [];\n        var i = 0;\n\n        function recurse(node) {\n          if (node.children) {\n            node.children.forEach(recurse);\n          }\n          if (!node.id) {\n            node.id = ++i;\n          }\n          n.push(node);\n        }\n        recurse(root);\n        return n;\n      }\n    }, {\n      key: '_elbow',\n      value: function _elbow(d, i) {\n        if (d.target.data.noParent) {\n          return 'M0,0L0,0';\n        }\n        var ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n\n        var linedata = [{\n          x: d.target.x,\n          y: d.target.y\n        }, {\n          x: d.target.x,\n          y: ny\n        }, {\n          x: d.source.x,\n          y: d.source.y\n        }];\n\n        var fun = d3.line().curve(d3.curveStepAfter).x(function (d) {\n          return d.x;\n        }).y(function (d) {\n          return d.y;\n        });\n        return fun(linedata);\n      }\n    }, {\n      key: '_linkSiblings',\n      value: function _linkSiblings() {\n\n        var allNodes = this.allNodes;\n\n        _.forEach(this.siblings, function (d) {\n          var start = allNodes.filter(function (v) {\n            return d.source.id == v.data.id;\n          });\n          var end = allNodes.filter(function (v) {\n            return d.target.id == v.data.id;\n          });\n          d.source.x = start[0].x;\n          d.source.y = start[0].y;\n          d.target.x = end[0].x;\n          d.target.y = end[0].y;\n\n          var marriageId = start[0].data.marriageNode != null ? start[0].data.marriageNode.id : end[0].data.marriageNode.id;\n          var marriageNode = allNodes.find(function (n) {\n            return n.data.id == marriageId;\n          });\n          d.source.marriageNode = marriageNode;\n          d.target.marriageNode = marriageNode;\n        });\n      }\n    }, {\n      key: '_siblingLine',\n      value: function _siblingLine(d, i) {\n\n        var ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n        var nodeWidth = this.nodeSize[0];\n        var nodeHeight = this.nodeSize[1];\n\n        // Not first marriage\n        if (d.number > 0) {\n          ny -= nodeHeight * 8 / 10;\n        }\n\n        var linedata = [{\n          x: d.source.x,\n          y: d.source.y\n        }, {\n          x: d.source.x + nodeWidth * 6 / 10,\n          y: d.source.y\n        }, {\n          x: d.source.x + nodeWidth * 6 / 10,\n          y: ny\n        }, {\n          x: d.target.marriageNode.x,\n          y: ny\n        }, {\n          x: d.target.marriageNode.x,\n          y: d.target.y\n        }, {\n          x: d.target.x,\n          y: d.target.y\n        }];\n\n        var fun = d3.line().curve(d3.curveStepAfter).x(function (d) {\n          return d.x;\n        }).y(function (d) {\n          return d.y;\n        });\n        return fun(linedata);\n      }\n    }], [{\n      key: '_nodeHeightSeperation',\n      value: function _nodeHeightSeperation(nodeWidth, nodeMaxHeight) {\n        return nodeMaxHeight + 25;\n      }\n    }, {\n      key: '_nodeSize',\n      value: function _nodeSize(nodes, width, textRenderer) {\n        var maxWidth = 0;\n        var maxHeight = 0;\n        var tmpSvg = document.createElement('svg');\n        document.body.appendChild(tmpSvg);\n\n        _.map(nodes, function (n) {\n          var container = document.createElement('div');\n          container.setAttribute('class', n.data['class']);\n          container.style.visibility = 'hidden';\n          container.style.maxWidth = width + 'px';\n\n          var text = textRenderer(n.data.name, n.data.extra, n.data.textClass);\n          container.innerHTML = text;\n\n          tmpSvg.appendChild(container);\n          var height = container.offsetHeight;\n          tmpSvg.removeChild(container);\n\n          maxHeight = Math.max(maxHeight, height);\n          n.cHeight = height;\n          if (n.data.hidden) {\n            n.cWidth = 0;\n          } else {\n            n.cWidth = width;\n          }\n        });\n        document.body.removeChild(tmpSvg);\n\n        return [width, maxHeight];\n      }\n    }, {\n      key: '_nodeRenderer',\n      value: function _nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n        var node = '';\n        node += '<div ';\n        node += 'style=\"height:100%;width:100%;\" ';\n        node += 'class=\"' + nodeClass + '\" ';\n        node += 'id=\"node' + id + '\">\\n';\n        node += textRenderer(name, extra, textClass);\n        node += '</div>';\n        return node;\n      }\n    }, {\n      key: '_textRenderer',\n      value: function _textRenderer(name, extra, textClass) {\n        var node = '';\n        node += '<p ';\n        node += 'align=\"center\" ';\n        node += 'class=\"' + textClass + '\">\\n';\n        node += name;\n        node += '</p>\\n';\n        return node;\n      }\n    }, {\n      key: '_debug',\n      value: function _debug(msg) {\n        if (TreeBuilder.DEBUG_LEVEL > 0) {\n          console.log(msg);\n        }\n      }\n    }]);\n\n    return TreeBuilder;\n  })();\n\n  var dTree = {\n\n    VERSION: '2.1.0',\n\n    init: function init(data) {\n      var options = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];\n\n      var opts = _.defaultsDeep(options || {}, {\n        target: '#graph',\n        debug: false,\n        width: 600,\n        height: 600,\n        callbacks: {\n          nodeClick: function nodeClick(name, extra, id) {},\n          nodeHeightSeperation: function nodeHeightSeperation(nodeWidth, nodeMaxHeight) {\n            return TreeBuilder._nodeHeightSeperation(nodeWidth, nodeMaxHeight);\n          },\n          nodeRenderer: function nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n            return TreeBuilder._nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer);\n          },\n          nodeSize: function nodeSize(nodes, width, textRenderer) {\n            return TreeBuilder._nodeSize(nodes, width, textRenderer);\n          },\n          nodeSorter: function nodeSorter(aName, aExtra, bName, bExtra) {\n            return 0;\n          },\n          textRenderer: function textRenderer(name, extra, textClass) {\n            return TreeBuilder._textRenderer(name, extra, textClass);\n          }\n        },\n        margin: {\n          top: 0,\n          right: 0,\n          bottom: 0,\n          left: 0\n        },\n        nodeWidth: 100,\n        styles: {\n          node: 'node',\n          linage: 'linage',\n          marriage: 'marriage',\n          text: 'nodeText'\n        }\n      });\n\n      var data = this._preprocess(data, opts);\n      var treeBuilder = new TreeBuilder(data.root, data.siblings, opts);\n      treeBuilder.create();\n    },\n\n    _preprocess: function _preprocess(data, opts) {\n\n      var siblings = [];\n      var id = 0;\n\n      var root = {\n        name: '',\n        id: id++,\n        hidden: true,\n        children: []\n      };\n\n      var reconstructTree = function reconstructTree(person, parent) {\n\n        // convert to person to d3 node\n        var node = {\n          name: person.name,\n          id: id++,\n          hidden: false,\n          children: [],\n          extra: person.extra,\n          textClass: person.textClass ? person.textClass : opts.styles.text,\n          'class': person['class'] ? person['class'] : opts.styles.node\n        };\n\n        // hide linages to the hidden root node\n        if (parent == root) {\n          node.noParent = true;\n        }\n\n        // apply depth offset\n        for (var i = 0; i < person.depthOffset; i++) {\n          var pushNode = {\n            name: '',\n            id: id++,\n            hidden: true,\n            children: [],\n            noParent: node.noParent\n          };\n          parent.children.push(pushNode);\n          parent = pushNode;\n        }\n\n        // sort children\n        dTree._sortPersons(person.children, opts);\n\n        // add \"direct\" children\n        _.forEach(person.children, function (child) {\n          reconstructTree(child, node);\n        });\n\n        parent.children.push(node);\n\n        //sort marriages\n        dTree._sortMarriages(person.marriages, opts);\n\n        // go through marriage\n        _.forEach(person.marriages, function (marriage, index) {\n\n          var m = {\n            name: '',\n            id: id++,\n            hidden: true,\n            noParent: true,\n            children: [],\n            extra: marriage.extra\n          };\n\n          var sp = marriage.spouse;\n\n          var spouse = {\n            name: sp.name,\n            id: id++,\n            hidden: false,\n            noParent: true,\n            children: [],\n            textClass: sp.textClass ? sp.textClass : opts.styles.text,\n            'class': sp['class'] ? sp['class'] : opts.styles.node,\n            extra: sp.extra,\n            marriageNode: m\n          };\n\n          parent.children.push(m, spouse);\n\n          dTree._sortPersons(marriage.children, opts);\n          _.forEach(marriage.children, function (child) {\n            reconstructTree(child, m);\n          });\n\n          siblings.push({\n            source: {\n              id: node.id\n            },\n            target: {\n              id: spouse.id\n            },\n            number: index\n          });\n        });\n      };\n\n      _.forEach(data, function (person) {\n        reconstructTree(person, root);\n      });\n\n      return {\n        root: d3.hierarchy(root),\n        siblings: siblings\n      };\n    },\n\n    _sortPersons: function _sortPersons(persons, opts) {\n      if (persons != undefined) {\n        persons.sort(function (a, b) {\n          return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n        });\n      }\n      return persons;\n    },\n\n    _sortMarriages: function _sortMarriages(marriages, opts) {\n      if (marriages != undefined && Array.isArray(marriages)) {\n        marriages.sort(function (marriageA, marriageB) {\n          var a = marriageA.spouse;\n          var b = marriageB.spouse;\n          return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n        });\n      }\n      return marriages;\n    }\n\n  };\n\n  return dTree;\n});\n\n","(function (global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n\ttypeof define === 'function' && define.amd ? define(factory) :\n\t(global.dTree = factory());\n}(this, (function () { 'use strict';\n\nclass TreeBuilder {\n\n  constructor(root, siblings, opts) {\n    TreeBuilder.DEBUG_LEVEL = opts.debug ? 1 : 0;\n\n    this.root = root;\n    this.siblings = siblings;\n    this.opts = opts;\n\n    // flatten nodes\n    this.allNodes = this._flatten(this.root);\n\n    // Calculate node size\n    let visibleNodes = _.filter(this.allNodes, function(n) {\n      return !n.hidden;\n    });\n    this.nodeSize = opts.callbacks.nodeSize(visibleNodes,\n      opts.nodeWidth, opts.callbacks.textRenderer);\n  }\n\n  create() {\n\n    let opts = this.opts;\n    let allNodes = this.allNodes;\n    let nodeSize = this.nodeSize;\n\n    let width = opts.width + opts.margin.left + opts.margin.right;\n    let height = opts.height + opts.margin.top + opts.margin.bottom;\n\n    let zoom = d3.zoom()\n      .scaleExtent([0.1, 10])\n      .on('zoom', function() {\n        svg.attr('transform', d3.event.transform.translate(width / 2, opts.margin.top));\n      });\n\n    //make an SVG\n    let svg = this.svg = d3.select(opts.target)\n      .append('svg')\n      .attr('width', width)\n      .attr('height', height)\n      .call(zoom)\n      .append('g')\n      .attr('transform', 'translate(' + width / 2 + ',' + opts.margin.top + ')');\n\n    // Compute the layout.\n    this.tree = d3.tree()\n      .nodeSize([nodeSize[0] * 2,\n                 opts.callbacks.nodeHeightSeperation(nodeSize[0], nodeSize[1])]);\n\n    this.tree.separation(function separation(a, b) {\n      if (a.data.hidden || b.data.hidden) {\n        return 0.3;\n      } else {\n        return 0.6;\n      }\n    });\n\n    this._update(this.root);\n\n  }\n\n  _update(source) {\n\n    let opts = this.opts;\n    let allNodes = this.allNodes;\n    let nodeSize = this.nodeSize;\n\n    let treenodes = this.tree(source);\n    let links = treenodes.links();\n\n    // Create the link lines.\n    this.svg.selectAll('.link')\n      .data(links)\n      .enter()\n      // filter links with no parents to prevent empty nodes\n      .filter(function(l) {\n        return !l.target.data.noParent;\n      })\n      .append('path')\n      .attr('class', opts.styles.linage)\n      .attr('d', this._elbow);\n\n    let nodes = this.svg.selectAll('.node')\n      .data(treenodes.descendants())\n      .enter();\n\n    this._linkSiblings();\n\n    // Draw siblings (marriage)\n    this.svg.selectAll('.sibling')\n      .data(this.siblings)\n      .enter()\n      .append('path')\n      .attr('class', opts.styles.marriage)\n      .attr('d', _.bind(this._siblingLine, this));\n\n    // Create the node rectangles.\n    nodes.append('foreignObject')\n      .filter(function(d) {\n        return d.data.hidden ? false : true;\n      })\n      .attr('x', function(d) {\n        return d.x - d.cWidth / 2 + 'px';\n      })\n      .attr('y', function(d) {\n        return d.y - d.cHeight / 2 + 'px';\n      })\n      .attr('width', function(d) {\n        return d.cWidth + 'px';\n      })\n      .attr('height', function(d) {\n        return d.cHeight + 'px';\n      })\n      .attr('id', function(d) {\n        return d.id;\n      })\n      .html(function(d) {\n        return opts.callbacks.nodeRenderer(\n          d.data.name,\n          d.x,\n          d.y,\n          nodeSize[0],\n          nodeSize[1],\n          d.data.extra,\n          d.data.id,\n          d.data.class,\n          d.data.textClass,\n          opts.callbacks.textRenderer);\n      })\n      .on('click', function(d)  {\n        if (d.data.hidden) {\n          return;\n        }\n        opts.callbacks.nodeClick(d.data.name, d.data.extra, d.data.id);\n      });\n  }\n\n  _flatten(root) {\n    let n = [];\n    let i = 0;\n\n    function recurse(node) {\n      if (node.children) {\n        node.children.forEach(recurse);\n      }\n      if (!node.id) {\n        node.id = ++i;\n      }\n      n.push(node);\n    }\n    recurse(root);\n    return n;\n  }\n\n  _elbow(d, i) {\n    if (d.target.data.noParent) {\n      return 'M0,0L0,0';\n    }\n    let ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n\n    let linedata = [{\n      x: d.target.x,\n      y: d.target.y\n    }, {\n      x: d.target.x,\n      y: ny\n    }, {\n      x: d.source.x,\n      y: d.source.y\n    }];\n\n    let fun = d3.line().curve(d3.curveStepAfter)\n      .x(function(d) {\n        return d.x;\n      })\n      .y(function(d) {\n        return d.y;\n      });\n    return fun(linedata);\n  }\n\n  _linkSiblings() {\n\n    let allNodes = this.allNodes;\n\n    _.forEach(this.siblings, function(d) {\n      let start = allNodes.filter(function(v) {\n        return d.source.id == v.data.id;\n      });\n      let end = allNodes.filter(function(v) {\n        return d.target.id == v.data.id;\n      });\n      d.source.x = start[0].x;\n      d.source.y = start[0].y;\n      d.target.x = end[0].x;\n      d.target.y = end[0].y;\n\n      let marriageId = (start[0].data.marriageNode != null ?\n                        start[0].data.marriageNode.id :\n                        end[0].data.marriageNode.id);\n      let marriageNode = allNodes.find(function(n) {\n        return n.data.id == marriageId;\n      });\n      d.source.marriageNode = marriageNode;\n      d.target.marriageNode = marriageNode;\n    });\n\n  }\n\n  _siblingLine(d, i) {\n\n    let ny = d.target.y + (d.source.y - d.target.y) * 0.50;\n    let nodeWidth = this.nodeSize[0];\n    let nodeHeight = this.nodeSize[1];\n\n    // Not first marriage\n    if (d.number > 0) {\n      ny -= nodeHeight * 8 / 10;\n    }\n\n    let linedata = [{\n      x: d.source.x,\n      y: d.source.y\n    }, {\n      x: d.source.x + nodeWidth * 6 / 10,\n      y: d.source.y\n    }, {\n      x: d.source.x + nodeWidth * 6 / 10,\n      y: ny\n    }, {\n      x: d.target.marriageNode.x,\n      y: ny\n    }, {\n      x: d.target.marriageNode.x,\n      y: d.target.y\n    }, {\n      x: d.target.x,\n      y: d.target.y\n    }];\n\n    let fun = d3.line().curve(d3.curveStepAfter)\n      .x(function(d) {\n        return d.x;\n      })\n      .y(function(d) {\n        return d.y;\n      });\n    return fun(linedata);\n  }\n\n  static _nodeHeightSeperation(nodeWidth, nodeMaxHeight) {\n    return nodeMaxHeight + 25;\n  }\n\n  static _nodeSize(nodes, width, textRenderer) {\n    let maxWidth = 0;\n    let maxHeight = 0;\n    let tmpSvg = document.createElement('svg');\n    document.body.appendChild(tmpSvg);\n\n    _.map(nodes, function(n) {\n      let container = document.createElement('div');\n      container.setAttribute('class', n.data.class);\n      container.style.visibility = 'hidden';\n      container.style.maxWidth = width + 'px';\n\n      let text = textRenderer(n.data.name, n.data.extra, n.data.textClass);\n      container.innerHTML = text;\n\n      tmpSvg.appendChild(container);\n      let height = container.offsetHeight;\n      tmpSvg.removeChild(container);\n\n      maxHeight = Math.max(maxHeight, height);\n      n.cHeight = height;\n      if (n.data.hidden) {\n        n.cWidth = 0;\n      } else {\n        n.cWidth = width;\n      }\n    });\n    document.body.removeChild(tmpSvg);\n\n    return [width, maxHeight];\n  }\n\n  static _nodeRenderer(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n    let node = '';\n    node += '<div ';\n    node += 'style=\"height:100%;width:100%;\" ';\n    node += 'class=\"' + nodeClass + '\" ';\n    node += 'id=\"node' + id + '\">\\n';\n    node += textRenderer(name, extra, textClass);\n    node += '</div>';\n    return node;\n  }\n\n  static _textRenderer(name, extra, textClass) {\n    let node = '';\n    node += '<p ';\n    node += 'align=\"center\" ';\n    node += 'class=\"' + textClass + '\">\\n';\n    node += name;\n    node += '</p>\\n';\n    return node;\n  }\n\n  static _debug(msg) {\n    if (TreeBuilder.DEBUG_LEVEL > 0)  {\n      console.log(msg);\n    }\n  }\n\n}\n\nconst dTree = {\n\n  VERSION: '2.1.0',\n\n  init: function(data, options = {}) {\n\n    var opts = _.defaultsDeep(options || {}, {\n      target: '#graph',\n      debug: false,\n      width: 600,\n      height: 600,\n      callbacks: {\n        nodeClick: function(name, extra, id) {},\n        nodeHeightSeperation: function(nodeWidth, nodeMaxHeight) {\n          return TreeBuilder._nodeHeightSeperation(nodeWidth, nodeMaxHeight);\n        },\n        nodeRenderer: function(name, x, y, height, width, extra, id, nodeClass, textClass, textRenderer) {\n          return TreeBuilder._nodeRenderer(name, x, y, height, width, extra,\n            id,nodeClass, textClass, textRenderer);\n        },\n        nodeSize: function(nodes, width, textRenderer) {\n          return TreeBuilder._nodeSize(nodes, width, textRenderer);\n        },\n        nodeSorter: function(aName, aExtra, bName, bExtra) {return 0;},\n        textRenderer: function(name, extra, textClass) {\n          return TreeBuilder._textRenderer(name, extra, textClass);\n        },\n      },\n      margin: {\n        top: 0,\n        right: 0,\n        bottom: 0,\n        left: 0\n      },\n      nodeWidth: 100,\n      styles: {\n        node: 'node',\n        linage: 'linage',\n        marriage: 'marriage',\n        text: 'nodeText'\n      }\n    });\n\n    var data = this._preprocess(data, opts);\n    var treeBuilder = new TreeBuilder(data.root, data.siblings, opts);\n    treeBuilder.create();\n\n  },\n\n  _preprocess: function(data, opts) {\n\n    var siblings = [];\n    var id = 0;\n\n    var root = {\n      name: '',\n      id: id++,\n      hidden: true,\n      children: []\n    };\n\n    var reconstructTree = function(person, parent) {\n\n      // convert to person to d3 node\n      var node = {\n        name: person.name,\n        id: id++,\n        hidden: false,\n        children: [],\n        extra: person.extra,\n        textClass: person.textClass ? person.textClass : opts.styles.text,\n        class: person.class ? person.class : opts.styles.node\n      };\n\n      // hide linages to the hidden root node\n      if (parent == root) {\n        node.noParent = true;\n      }\n\n      // apply depth offset\n      for (var i = 0; i < person.depthOffset; i++) {\n        var pushNode = {\n          name: '',\n          id: id++,\n          hidden: true,\n          children: [],\n          noParent: node.noParent\n        };\n        parent.children.push(pushNode);\n        parent = pushNode;\n      }\n\n      // sort children\n      dTree._sortPersons(person.children, opts);\n\n      // add \"direct\" children\n      _.forEach(person.children, function(child) {\n        reconstructTree(child, node);\n      });\n\n      parent.children.push(node);\n\n      //sort marriages\n      dTree._sortMarriages(person.marriages, opts);\n\n      // go through marriage\n      _.forEach(person.marriages, function(marriage, index) {\n\n        var m = {\n          name: '',\n          id: id++,\n          hidden: true,\n          noParent: true,\n          children: [],\n          extra: marriage.extra\n        };\n\n        var sp = marriage.spouse;\n\n        var spouse = {\n          name: sp.name,\n          id: id++,\n          hidden: false,\n          noParent: true,\n          children: [],\n          textClass: sp.textClass ? sp.textClass : opts.styles.text,\n          class: sp.class ? sp.class : opts.styles.node,\n          extra: sp.extra,\n          marriageNode: m\n        };\n\n        parent.children.push(m, spouse);\n\n        dTree._sortPersons(marriage.children, opts);\n        _.forEach(marriage.children, function(child) {\n          reconstructTree(child, m);\n        });\n\n        siblings.push({\n          source: {\n            id: node.id\n          },\n          target: {\n            id: spouse.id\n          },\n          number: index\n        });\n      });\n\n    };\n\n    _.forEach(data, function(person) {\n      reconstructTree(person, root);\n    });\n\n    return {\n      root: d3.hierarchy(root),\n      siblings: siblings\n    };\n\n  },\n\n  _sortPersons: function(persons, opts) {\n    if (persons != undefined) {\n      persons.sort(function(a, b) {\n        return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n      });\n    }\n    return persons;\n  },\n\n  _sortMarriages: function(marriages, opts) {\n    if (marriages != undefined && Array.isArray(marriages)) {\n      marriages.sort(function(marriageA, marriageB) {\n        var a = marriageA.spouse;\n        var b = marriageB.spouse;\n        return opts.callbacks.nodeSorter(a.name, a.extra, b.name, b.extra);\n      });\n    }\n    return marriages;\n  }\n\n};\n\nreturn dTree;\n\n})));\n"]}
\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
index a89ee05..865c170 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -150,7 +150,7 @@ gulp.task('tag-release', function (cb) {
 });
 
 gulp.task('commit-changes', function () {
-  return gulp.src(['./package.json', './CHANGELOG.md', './dist/*', './README.md'])
+  return gulp.src(['./README.md', './CHANGELOG.md', './dist/*'])
     .pipe($.git.add())
     .pipe($.git.commit('chore: Bump version number'));
 });
diff --git a/package.json b/package.json
index c79c49a..1b788cd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "d3-dtree",
-  "version": "2.0.2",
+  "version": "2.1.0",
   "description": "A library for visualizing data trees built on top of D3.",
   "main": "dist/dTree.js",
   "scripts": {
@@ -47,7 +47,7 @@
     "gulp-eslint": "^1.0.0",
     "gulp-file": "^0.2.0",
     "gulp-filter": "^3.0.0",
-    "gulp-git": "^1.5.0",
+    "gulp-git": "^2.9.0",
     "gulp-github-release": "^1.1.0",
     "gulp-istanbul": "^0.10.0",
     "gulp-jscs": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index 05cc07e..0ade7b7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -109,6 +109,13 @@ amdefine@>=0.0.4:
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
   integrity sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=
 
+ansi-colors@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-1.1.0.tgz#6374b4dd5d4718ff3ce27a671a3b1cad077132a9"
+  integrity sha512-SFKX67auSNoVR38N3L+nvsPjOE0bybKTYbkf5tRvushrAPQ9V75huw0ZxBkKVeRU9kqH3d6HA4xTckbwZ4ixmA==
+  dependencies:
+    ansi-wrap "^0.1.0"
+
 ansi-cyan@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/ansi-cyan/-/ansi-cyan-0.1.1.tgz#538ae528af8982f28ae30d86f2f17456d2609873"
@@ -182,7 +189,7 @@ ansi-styles@~1.0.0:
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-1.0.0.tgz#cb102df1c56f5123eab8b67cd7b98027a0279178"
   integrity sha1-yxAt8cVvUSPquLZ817mAJ6AnkXg=
 
-ansi-wrap@0.1.0:
+ansi-wrap@0.1.0, ansi-wrap@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/ansi-wrap/-/ansi-wrap-0.1.0.tgz#a82250ddb0015e9a27ca82e82ea603bbfa45efaf"
   integrity sha1-qCJQ3bABXponyoLoLqYDu/pF768=
@@ -1186,11 +1193,21 @@ cliui@^2.1.0:
     right-align "^0.1.1"
     wordwrap "0.0.2"
 
+clone-buffer@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/clone-buffer/-/clone-buffer-1.0.0.tgz#e3e25b207ac4e701af721e2cb5a16792cac3dc58"
+  integrity sha1-4+JbIHrE5wGvch4staFnksrD3Fg=
+
 clone-stats@^0.0.1, clone-stats@~0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/clone-stats/-/clone-stats-0.0.1.tgz#b88f94a82cf38b8791d58046ea4029ad88ca99d1"
   integrity sha1-uI+UqCzzi4eR1YBG6kAprYjKmdE=
 
+clone-stats@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/clone-stats/-/clone-stats-1.0.0.tgz#b3782dff8bb5474e18b9b6bf0fdfe782f8777680"
+  integrity sha1-s3gt/4u1R04Yuba/D9/ngvh3doA=
+
 clone@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/clone/-/clone-0.2.0.tgz#c6126a90ad4f72dbf5acdb243cc37724fe93fc1f"
@@ -1201,6 +1218,20 @@ clone@^1.0.0, clone@^1.0.2:
   resolved "https://registry.yarnpkg.com/clone/-/clone-1.0.4.tgz#da309cc263df15994c688ca902179ca3c7cd7c7e"
   integrity sha1-2jCcwmPfFZlMaIypAheco8fNfH4=
 
+clone@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/clone/-/clone-2.1.2.tgz#1b7f4b9f591f1e8f83670401600345a02887435f"
+  integrity sha1-G39Ln1kfHo+DZwQBYANFoCiHQ18=
+
+cloneable-readable@^1.0.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/cloneable-readable/-/cloneable-readable-1.1.2.tgz#d591dee4a8f8bc15da43ce97dceeba13d43e2a65"
+  integrity sha512-Bq6+4t+lbM8vhTs/Bef5c5AdEMtapp/iFb6+s4/Hh9MVTt8OLKH7ZOOZSCT+Ys7hsHvqv0GuMPJ1lnQJVHvxpg==
+  dependencies:
+    inherits "^2.0.1"
+    process-nextick-args "^2.0.0"
+    readable-stream "^2.3.5"
+
 code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
@@ -2797,6 +2828,13 @@ first-chunk-stream@^1.0.0:
   resolved "https://registry.yarnpkg.com/first-chunk-stream/-/first-chunk-stream-1.0.0.tgz#59bfb50cd905f60d7c394cd3d9acaab4e6ad934e"
   integrity sha1-Wb+1DNkF9g18OUzT2ayqtOatk04=
 
+first-chunk-stream@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/first-chunk-stream/-/first-chunk-stream-2.0.0.tgz#1bdecdb8e083c0664b91945581577a43a9f31d70"
+  integrity sha1-G97NuOCDwGZLkZRVgVd6Q6nzHXA=
+  dependencies:
+    readable-stream "^2.0.2"
+
 flagged-respawn@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/flagged-respawn/-/flagged-respawn-1.0.1.tgz#e7de6f1279ddd9ca9aac8a5971d618606b3aab41"
@@ -3232,15 +3270,19 @@ gulp-filter@^3.0.0:
     multimatch "^2.0.0"
     streamfilter "^1.0.5"
 
-gulp-git@^1.5.0:
-  version "1.15.1"
-  resolved "https://registry.yarnpkg.com/gulp-git/-/gulp-git-1.15.1.tgz#cdd9d354fc41d8dcb52cef47256dfba366785979"
-  integrity sha1-zdnTVPxB2Ny1LO9HJW37o2Z4WXk=
+gulp-git@^2.9.0:
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/gulp-git/-/gulp-git-2.9.0.tgz#f1ea6528d855f5e9cd4d712913131214f5088b58"
+  integrity sha512-66ZCwlCCf0YXEUedDbx76p0ii6aQ6aUHC4oSytn3UM8J6VWJKYF4PBARMIgR/POGWyYeN7hjd81Elpjn/o4+Tg==
   dependencies:
     any-shell-escape "^0.1.1"
-    gulp-util "^3.0.6"
-    require-dir "^0.1.0"
-    through2 "^0.6.5"
+    fancy-log "^1.3.2"
+    lodash.template "^4.4.0"
+    plugin-error "^1.0.1"
+    require-dir "^1.0.0"
+    strip-bom-stream "^3.0.0"
+    through2 "^2.0.3"
+    vinyl "^2.0.1"
 
 gulp-github-release@^1.1.0:
   version "1.2.1"
@@ -4060,7 +4102,7 @@ is-url@^1.1.0:
   resolved "https://registry.yarnpkg.com/is-url/-/is-url-1.2.4.tgz#04a4df46d28c4cff3d73d01ff06abeb318a1aa52"
   integrity sha512-ITvGim8FhRiYe4IQ5uHSkj7pVaPDrCTkNd3yq3cV7iZAcJdHTUMPMEHcqSOy9xZ9qFenQCvi+2wjH9a1nXqHww==
 
-is-utf8@^0.2.0:
+is-utf8@^0.2.0, is-utf8@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
   integrity sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=
@@ -4669,7 +4711,7 @@ lodash._reinterpolate@^2.4.1, lodash._reinterpolate@~2.4.1:
   resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-2.4.1.tgz#4f1227aa5a8711fc632f5b07a1f4607aab8b3222"
   integrity sha1-TxInqlqHEfxjL1sHofRgequLMiI=
 
-lodash._reinterpolate@^3.0.0:
+lodash._reinterpolate@^3.0.0, lodash._reinterpolate@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
   integrity sha1-DM8tiRZq8Ds2Y8eWU4t1rG4RTZ0=
@@ -4891,6 +4933,14 @@ lodash.template@^3.0.0, lodash.template@^3.6.1:
     lodash.restparam "^3.0.0"
     lodash.templatesettings "^3.0.0"
 
+lodash.template@^4.4.0:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/lodash.template/-/lodash.template-4.4.0.tgz#e73a0385c8355591746e020b99679c690e68fba0"
+  integrity sha1-5zoDhcg1VZF0bgILmWecaQ5o+6A=
+  dependencies:
+    lodash._reinterpolate "~3.0.0"
+    lodash.templatesettings "^4.0.0"
+
 lodash.templatesettings@^3.0.0:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/lodash.templatesettings/-/lodash.templatesettings-3.1.1.tgz#fb307844753b66b9f1afa54e262c745307dba8e5"
@@ -4899,6 +4949,13 @@ lodash.templatesettings@^3.0.0:
     lodash._reinterpolate "^3.0.0"
     lodash.escape "^3.0.0"
 
+lodash.templatesettings@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/lodash.templatesettings/-/lodash.templatesettings-4.1.0.tgz#2b4d4e95ba440d915ff08bc899e4553666713316"
+  integrity sha1-K01OlbpEDZFf8IvImeRVNmZxMxY=
+  dependencies:
+    lodash._reinterpolate "~3.0.0"
+
 lodash.templatesettings@~2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/lodash.templatesettings/-/lodash.templatesettings-2.4.1.tgz#ea76c75d11eb86d4dbe89a83893bb861929ac699"
@@ -5417,7 +5474,7 @@ nomnom@^1.5.x:
     chalk "~0.4.0"
     underscore "~1.6.0"
 
-"nomnom@github:douglasduteil/nomnom#next":
+nomnom@douglasduteil/nomnom#next:
   version "1.8.1"
   resolved "https://codeload.github.com/douglasduteil/nomnom/tar.gz/96ec52cb430e608a0eadc55c760eeb57dad9a1d8"
   dependencies:
@@ -5933,6 +5990,16 @@ plugin-error@^0.1.2:
     arr-union "^2.0.1"
     extend-shallow "^1.1.2"
 
+plugin-error@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/plugin-error/-/plugin-error-1.0.1.tgz#77016bd8919d0ac377fdcdd0322328953ca5781c"
+  integrity sha512-L1zP0dk7vGweZME2i+EeakvUNqSrdiI3F91TwEoYiGrAfUXmVv6fJIq4g82PAXxNsWOp0J7ZqQy/3Szz0ajTxA==
+  dependencies:
+    ansi-colors "^1.0.1"
+    arr-diff "^4.0.0"
+    arr-union "^3.1.0"
+    extend-shallow "^3.0.2"
+
 plugin-log@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/plugin-log/-/plugin-log-0.1.0.tgz#86049cf6ab10833398a931f3689cbaee7b5e1333"
@@ -5976,7 +6043,7 @@ private@^0.1.6, private@~0.1.5:
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
   integrity sha512-VvivMrbvd2nKkiG38qjULzlc+4Vx4wm/whI9pQD35YrARNnhxeiRktSOhSukRLFNlzg6Br/cJPet5J/u19r/mg==
 
-process-nextick-args@~2.0.0:
+process-nextick-args@^2.0.0, process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
   integrity sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw==
@@ -6404,6 +6471,11 @@ replace-ext@0.0.1:
   resolved "https://registry.yarnpkg.com/replace-ext/-/replace-ext-0.0.1.tgz#29bbd92078a739f0bcce2b4ee41e837953522924"
   integrity sha1-KbvZIHinOfC8zitO5B6DeVNSKSQ=
 
+replace-ext@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/replace-ext/-/replace-ext-1.0.0.tgz#de63128373fcbf7c3ccfa4de5a480c45a67958eb"
+  integrity sha1-3mMSg3P8v3w8z6TeWkgMRaZ5WOs=
+
 replacestream@^4.0.0:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/replacestream/-/replacestream-4.0.3.tgz#3ee5798092be364b1cdb1484308492cb3dff2f36"
@@ -6439,10 +6511,10 @@ request@^2.54.0:
     tunnel-agent "^0.6.0"
     uuid "^3.3.2"
 
-require-dir@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/require-dir/-/require-dir-0.1.0.tgz#81e01e299faf5b74c34b6594f8e5add5985ddec5"
-  integrity sha1-geAeKZ+vW3TDS2WU+OWt1Zhd3sU=
+require-dir@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/require-dir/-/require-dir-1.2.0.tgz#0d443b75e96012d3ca749cf19f529a789ae74817"
+  integrity sha512-LY85DTSu+heYgDqq/mK+7zFHWkttVNRXC9NKcKGyuGLdlsfbjEPrIEYdCVrx6hqnJb+xSu3Lzaoo8VnmOhhjNA==
 
 reserved-words@^0.1.1:
   version "0.1.2"
@@ -7107,6 +7179,21 @@ strip-ansi@~0.1.0:
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-0.1.1.tgz#39e8a98d044d150660abe4a6808acf70bb7bc991"
   integrity sha1-OeipjQRNFQZgq+SmgIrPcLt7yZE=
 
+strip-bom-buf@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom-buf/-/strip-bom-buf-1.0.0.tgz#1cb45aaf57530f4caf86c7f75179d2c9a51dd572"
+  integrity sha1-HLRar1dTD0yvhsf3UXnSyaUd1XI=
+  dependencies:
+    is-utf8 "^0.2.1"
+
+strip-bom-stream@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom-stream/-/strip-bom-stream-3.0.0.tgz#956bcc5d84430f69256a90ed823765cd858e159c"
+  integrity sha1-lWvMXYRDD2klapDtgjdlzYWOFZw=
+  dependencies:
+    first-chunk-stream "^2.0.0"
+    strip-bom-buf "^1.0.0"
+
 strip-bom@2.X, strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -7255,7 +7342,7 @@ through2@^0.5.0, through2@^0.5.1, through2@~0.5.1:
     readable-stream "~1.0.17"
     xtend "~3.0.0"
 
-through2@^0.6.1, through2@^0.6.3, through2@^0.6.5, through2@~0.6.3:
+through2@^0.6.1, through2@^0.6.3, through2@~0.6.3:
   version "0.6.5"
   resolved "https://registry.yarnpkg.com/through2/-/through2-0.6.5.tgz#41ab9c67b29d57209071410e1d7a7a968cd3ad48"
   integrity sha1-QaucZ7KdVyCQcUEOHXp6lozTrUg=
@@ -7694,6 +7781,18 @@ vinyl@^0.5.0:
     clone-stats "^0.0.1"
     replace-ext "0.0.1"
 
+vinyl@^2.0.1:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-2.2.0.tgz#d85b07da96e458d25b2ffe19fece9f2caa13ed86"
+  integrity sha512-MBH+yP0kC/GQ5GwBqrTPTzEfiiLjta7hTtvQtbxBgTeSXsmKQRQecjibMbxIXzVT3Y9KJK+drOz1/k+vsu8Nkg==
+  dependencies:
+    clone "^2.1.1"
+    clone-buffer "^1.0.0"
+    clone-stats "^1.0.0"
+    cloneable-readable "^1.0.0"
+    remove-trailing-separator "^1.0.1"
+    replace-ext "^1.0.0"
+
 vm-browserify@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-1.1.0.tgz#bd76d6a23323e2ca8ffa12028dc04559c75f9019"