MZC/KnowMathBot/frontend/node_modules/layout-base/layout-base.js

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/* 0 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function LayoutConstants() {}

/**
 * Layout Quality: 0:draft, 1:default, 2:proof
 */
LayoutConstants.QUALITY = 1;

/**
 * Default parameters
 */
LayoutConstants.DEFAULT_CREATE_BENDS_AS_NEEDED = false;
LayoutConstants.DEFAULT_INCREMENTAL = false;
LayoutConstants.DEFAULT_ANIMATION_ON_LAYOUT = true;
LayoutConstants.DEFAULT_ANIMATION_DURING_LAYOUT = false;
LayoutConstants.DEFAULT_ANIMATION_PERIOD = 50;
LayoutConstants.DEFAULT_UNIFORM_LEAF_NODE_SIZES = false;

// -----------------------------------------------------------------------------
// Section: General other constants
// -----------------------------------------------------------------------------
/*
 * Margins of a graph to be applied on bouding rectangle of its contents. We
 * assume margins on all four sides to be uniform.
 */
LayoutConstants.DEFAULT_GRAPH_MARGIN = 15;

/*
 * Whether to consider labels in node dimensions or not
 */
LayoutConstants.NODE_DIMENSIONS_INCLUDE_LABELS = false;

/*
 * Default dimension of a non-compound node.
 */
LayoutConstants.SIMPLE_NODE_SIZE = 40;

/*
 * Default dimension of a non-compound node.
 */
LayoutConstants.SIMPLE_NODE_HALF_SIZE = LayoutConstants.SIMPLE_NODE_SIZE / 2;

/*
 * Empty compound node size. When a compound node is empty, its both
 * dimensions should be of this value.
 */
LayoutConstants.EMPTY_COMPOUND_NODE_SIZE = 40;

/*
 * Minimum length that an edge should take during layout
 */
LayoutConstants.MIN_EDGE_LENGTH = 1;

/*
 * World boundaries that layout operates on
 */
LayoutConstants.WORLD_BOUNDARY = 1000000;

/*
 * World boundaries that random positioning can be performed with
 */
LayoutConstants.INITIAL_WORLD_BOUNDARY = LayoutConstants.WORLD_BOUNDARY / 1000;

/*
 * Coordinates of the world center
 */
LayoutConstants.WORLD_CENTER_X = 1200;
LayoutConstants.WORLD_CENTER_Y = 900;

module.exports = LayoutConstants;

/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var LGraphObject = __webpack_require__(2);
var IGeometry = __webpack_require__(8);
var IMath = __webpack_require__(9);

function LEdge(source, target, vEdge) {
  LGraphObject.call(this, vEdge);

  this.isOverlapingSourceAndTarget = false;
  this.vGraphObject = vEdge;
  this.bendpoints = [];
  this.source = source;
  this.target = target;
}

LEdge.prototype = Object.create(LGraphObject.prototype);

for (var prop in LGraphObject) {
  LEdge[prop] = LGraphObject[prop];
}

LEdge.prototype.getSource = function () {
  return this.source;
};

LEdge.prototype.getTarget = function () {
  return this.target;
};

LEdge.prototype.isInterGraph = function () {
  return this.isInterGraph;
};

LEdge.prototype.getLength = function () {
  return this.length;
};

LEdge.prototype.isOverlapingSourceAndTarget = function () {
  return this.isOverlapingSourceAndTarget;
};

LEdge.prototype.getBendpoints = function () {
  return this.bendpoints;
};

LEdge.prototype.getLca = function () {
  return this.lca;
};

LEdge.prototype.getSourceInLca = function () {
  return this.sourceInLca;
};

LEdge.prototype.getTargetInLca = function () {
  return this.targetInLca;
};

LEdge.prototype.getOtherEnd = function (node) {
  if (this.source === node) {
    return this.target;
  } else if (this.target === node) {
    return this.source;
  } else {
    throw "Node is not incident with this edge";
  }
};

LEdge.prototype.getOtherEndInGraph = function (node, graph) {
  var otherEnd = this.getOtherEnd(node);
  var root = graph.getGraphManager().getRoot();

  while (true) {
    if (otherEnd.getOwner() == graph) {
      return otherEnd;
    }

    if (otherEnd.getOwner() == root) {
      break;
    }

    otherEnd = otherEnd.getOwner().getParent();
  }

  return null;
};

LEdge.prototype.updateLength = function () {
  var clipPointCoordinates = new Array(4);

  this.isOverlapingSourceAndTarget = IGeometry.getIntersection(this.target.getRect(), this.source.getRect(), clipPointCoordinates);

  if (!this.isOverlapingSourceAndTarget) {
    this.lengthX = clipPointCoordinates[0] - clipPointCoordinates[2];
    this.lengthY = clipPointCoordinates[1] - clipPointCoordinates[3];

    if (Math.abs(this.lengthX) < 1.0) {
      this.lengthX = IMath.sign(this.lengthX);
    }

    if (Math.abs(this.lengthY) < 1.0) {
      this.lengthY = IMath.sign(this.lengthY);
    }

    this.length = Math.sqrt(this.lengthX * this.lengthX + this.lengthY * this.lengthY);
  }
};

LEdge.prototype.updateLengthSimple = function () {
  this.lengthX = this.target.getCenterX() - this.source.getCenterX();
  this.lengthY = this.target.getCenterY() - this.source.getCenterY();

  if (Math.abs(this.lengthX) < 1.0) {
    this.lengthX = IMath.sign(this.lengthX);
  }

  if (Math.abs(this.lengthY) < 1.0) {
    this.lengthY = IMath.sign(this.lengthY);
  }

  this.length = Math.sqrt(this.lengthX * this.lengthX + this.lengthY * this.lengthY);
};

module.exports = LEdge;

/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function LGraphObject(vGraphObject) {
  this.vGraphObject = vGraphObject;
}

module.exports = LGraphObject;

/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var LGraphObject = __webpack_require__(2);
var Integer = __webpack_require__(10);
var RectangleD = __webpack_require__(13);
var LayoutConstants = __webpack_require__(0);
var RandomSeed = __webpack_require__(16);
var PointD = __webpack_require__(4);

function LNode(gm, loc, size, vNode) {
  //Alternative constructor 1 : LNode(LGraphManager gm, Point loc, Dimension size, Object vNode)
  if (size == null && vNode == null) {
    vNode = loc;
  }

  LGraphObject.call(this, vNode);

  //Alternative constructor 2 : LNode(Layout layout, Object vNode)
  if (gm.graphManager != null) gm = gm.graphManager;

  this.estimatedSize = Integer.MIN_VALUE;
  this.inclusionTreeDepth = Integer.MAX_VALUE;
  this.vGraphObject = vNode;
  this.edges = [];
  this.graphManager = gm;

  if (size != null && loc != null) this.rect = new RectangleD(loc.x, loc.y, size.width, size.height);else this.rect = new RectangleD();
}

LNode.prototype = Object.create(LGraphObject.prototype);
for (var prop in LGraphObject) {
  LNode[prop] = LGraphObject[prop];
}

LNode.prototype.getEdges = function () {
  return this.edges;
};

LNode.prototype.getChild = function () {
  return this.child;
};

LNode.prototype.getOwner = function () {
  //  if (this.owner != null) {
  //    if (!(this.owner == null || this.owner.getNodes().indexOf(this) > -1)) {
  //      throw "assert failed";
  //    }
  //  }

  return this.owner;
};

LNode.prototype.getWidth = function () {
  return this.rect.width;
};

LNode.prototype.setWidth = function (width) {
  this.rect.width = width;
};

LNode.prototype.getHeight = function () {
  return this.rect.height;
};

LNode.prototype.setHeight = function (height) {
  this.rect.height = height;
};

LNode.prototype.getCenterX = function () {
  return this.rect.x + this.rect.width / 2;
};

LNode.prototype.getCenterY = function () {
  return this.rect.y + this.rect.height / 2;
};

LNode.prototype.getCenter = function () {
  return new PointD(this.rect.x + this.rect.width / 2, this.rect.y + this.rect.height / 2);
};

LNode.prototype.getLocation = function () {
  return new PointD(this.rect.x, this.rect.y);
};

LNode.prototype.getRect = function () {
  return this.rect;
};

LNode.prototype.getDiagonal = function () {
  return Math.sqrt(this.rect.width * this.rect.width + this.rect.height * this.rect.height);
};

/**
 * This method returns half the diagonal length of this node.
 */
LNode.prototype.getHalfTheDiagonal = function () {
  return Math.sqrt(this.rect.height * this.rect.height + this.rect.width * this.rect.width) / 2;
};

LNode.prototype.setRect = function (upperLeft, dimension) {
  this.rect.x = upperLeft.x;
  this.rect.y = upperLeft.y;
  this.rect.width = dimension.width;
  this.rect.height = dimension.height;
};

LNode.prototype.setCenter = function (cx, cy) {
  this.rect.x = cx - this.rect.width / 2;
  this.rect.y = cy - this.rect.height / 2;
};

LNode.prototype.setLocation = function (x, y) {
  this.rect.x = x;
  this.rect.y = y;
};

LNode.prototype.moveBy = function (dx, dy) {
  this.rect.x += dx;
  this.rect.y += dy;
};

LNode.prototype.getEdgeListToNode = function (to) {
  var edgeList = [];
  var edge;
  var self = this;

  self.edges.forEach(function (edge) {

    if (edge.target == to) {
      if (edge.source != self) throw "Incorrect edge source!";

      edgeList.push(edge);
    }
  });

  return edgeList;
};

LNode.prototype.getEdgesBetween = function (other) {
  var edgeList = [];
  var edge;

  var self = this;
  self.edges.forEach(function (edge) {

    if (!(edge.source == self || edge.target == self)) throw "Incorrect edge source and/or target";

    if (edge.target == other || edge.source == other) {
      edgeList.push(edge);
    }
  });

  return edgeList;
};

LNode.prototype.getNeighborsList = function () {
  var neighbors = new Set();

  var self = this;
  self.edges.forEach(function (edge) {

    if (edge.source == self) {
      neighbors.add(edge.target);
    } else {
      if (edge.target != self) {
        throw "Incorrect incidency!";
      }

      neighbors.add(edge.source);
    }
  });

  return neighbors;
};

LNode.prototype.withChildren = function () {
  var withNeighborsList = new Set();
  var childNode;
  var children;

  withNeighborsList.add(this);

  if (this.child != null) {
    var nodes = this.child.getNodes();
    for (var i = 0; i < nodes.length; i++) {
      childNode = nodes[i];
      children = childNode.withChildren();
      children.forEach(function (node) {
        withNeighborsList.add(node);
      });
    }
  }

  return withNeighborsList;
};

LNode.prototype.getNoOfChildren = function () {
  var noOfChildren = 0;
  var childNode;

  if (this.child == null) {
    noOfChildren = 1;
  } else {
    var nodes = this.child.getNodes();
    for (var i = 0; i < nodes.length; i++) {
      childNode = nodes[i];

      noOfChildren += childNode.getNoOfChildren();
    }
  }

  if (noOfChildren == 0) {
    noOfChildren = 1;
  }
  return noOfChildren;
};

LNode.prototype.getEstimatedSize = function () {
  if (this.estimatedSize == Integer.MIN_VALUE) {
    throw "assert failed";
  }
  return this.estimatedSize;
};

LNode.prototype.calcEstimatedSize = function () {
  if (this.child == null) {
    return this.estimatedSize = (this.rect.width + this.rect.height) / 2;
  } else {
    this.estimatedSize = this.child.calcEstimatedSize();
    this.rect.width = this.estimatedSize;
    this.rect.height = this.estimatedSize;

    return this.estimatedSize;
  }
};

LNode.prototype.scatter = function () {
  var randomCenterX;
  var randomCenterY;

  var minX = -LayoutConstants.INITIAL_WORLD_BOUNDARY;
  var maxX = LayoutConstants.INITIAL_WORLD_BOUNDARY;
  randomCenterX = LayoutConstants.WORLD_CENTER_X + RandomSeed.nextDouble() * (maxX - minX) + minX;

  var minY = -LayoutConstants.INITIAL_WORLD_BOUNDARY;
  var maxY = LayoutConstants.INITIAL_WORLD_BOUNDARY;
  randomCenterY = LayoutConstants.WORLD_CENTER_Y + RandomSeed.nextDouble() * (maxY - minY) + minY;

  this.rect.x = randomCenterX;
  this.rect.y = randomCenterY;
};

LNode.prototype.updateBounds = function () {
  if (this.getChild() == null) {
    throw "assert failed";
  }
  if (this.getChild().getNodes().length != 0) {
    // wrap the children nodes by re-arranging the boundaries
    var childGraph = this.getChild();
    childGraph.updateBounds(true);

    this.rect.x = childGraph.getLeft();
    this.rect.y = childGraph.getTop();

    this.setWidth(childGraph.getRight() - childGraph.getLeft());
    this.setHeight(childGraph.getBottom() - childGraph.getTop());

    // Update compound bounds considering its label properties    
    if (LayoutConstants.NODE_DIMENSIONS_INCLUDE_LABELS) {

      var width = childGraph.getRight() - childGraph.getLeft();
      var height = childGraph.getBottom() - childGraph.getTop();

      if (this.labelWidth > width) {
        this.rect.x -= (this.labelWidth - width) / 2;
        this.setWidth(this.labelWidth);
      }

      if (this.labelHeight > height) {
        if (this.labelPos == "center") {
          this.rect.y -= (this.labelHeight - height) / 2;
        } else if (this.labelPos == "top") {
          this.rect.y -= this.labelHeight - height;
        }
        this.setHeight(this.labelHeight);
      }
    }
  }
};

LNode.prototype.getInclusionTreeDepth = function () {
  if (this.inclusionTreeDepth == Integer.MAX_VALUE) {
    throw "assert failed";
  }
  return this.inclusionTreeDepth;
};

LNode.prototype.transform = function (trans) {
  var left = this.rect.x;

  if (left > LayoutConstants.WORLD_BOUNDARY) {
    left = LayoutConstants.WORLD_BOUNDARY;
  } else if (left < -LayoutConstants.WORLD_BOUNDARY) {
    left = -LayoutConstants.WORLD_BOUNDARY;
  }

  var top = this.rect.y;

  if (top > LayoutConstants.WORLD_BOUNDARY) {
    top = LayoutConstants.WORLD_BOUNDARY;
  } else if (top < -LayoutConstants.WORLD_BOUNDARY) {
    top = -LayoutConstants.WORLD_BOUNDARY;
  }

  var leftTop = new PointD(left, top);
  var vLeftTop = trans.inverseTransformPoint(leftTop);

  this.setLocation(vLeftTop.x, vLeftTop.y);
};

LNode.prototype.getLeft = function () {
  return this.rect.x;
};

LNode.prototype.getRight = function () {
  return this.rect.x + this.rect.width;
};

LNode.prototype.getTop = function () {
  return this.rect.y;
};

LNode.prototype.getBottom = function () {
  return this.rect.y + this.rect.height;
};

LNode.prototype.getParent = function () {
  if (this.owner == null) {
    return null;
  }

  return this.owner.getParent();
};

module.exports = LNode;

/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function PointD(x, y) {
  if (x == null && y == null) {
    this.x = 0;
    this.y = 0;
  } else {
    this.x = x;
    this.y = y;
  }
}

PointD.prototype.getX = function () {
  return this.x;
};

PointD.prototype.getY = function () {
  return this.y;
};

PointD.prototype.setX = function (x) {
  this.x = x;
};

PointD.prototype.setY = function (y) {
  this.y = y;
};

PointD.prototype.getDifference = function (pt) {
  return new DimensionD(this.x - pt.x, this.y - pt.y);
};

PointD.prototype.getCopy = function () {
  return new PointD(this.x, this.y);
};

PointD.prototype.translate = function (dim) {
  this.x += dim.width;
  this.y += dim.height;
  return this;
};

module.exports = PointD;

/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var LGraphObject = __webpack_require__(2);
var Integer = __webpack_require__(10);
var LayoutConstants = __webpack_require__(0);
var LGraphManager = __webpack_require__(6);
var LNode = __webpack_require__(3);
var LEdge = __webpack_require__(1);
var RectangleD = __webpack_require__(13);
var Point = __webpack_require__(12);
var LinkedList = __webpack_require__(11);

function LGraph(parent, obj2, vGraph) {
  LGraphObject.call(this, vGraph);
  this.estimatedSize = Integer.MIN_VALUE;
  this.margin = LayoutConstants.DEFAULT_GRAPH_MARGIN;
  this.edges = [];
  this.nodes = [];
  this.isConnected = false;
  this.parent = parent;

  if (obj2 != null && obj2 instanceof LGraphManager) {
    this.graphManager = obj2;
  } else if (obj2 != null && obj2 instanceof Layout) {
    this.graphManager = obj2.graphManager;
  }
}

LGraph.prototype = Object.create(LGraphObject.prototype);
for (var prop in LGraphObject) {
  LGraph[prop] = LGraphObject[prop];
}

LGraph.prototype.getNodes = function () {
  return this.nodes;
};

LGraph.prototype.getEdges = function () {
  return this.edges;
};

LGraph.prototype.getGraphManager = function () {
  return this.graphManager;
};

LGraph.prototype.getParent = function () {
  return this.parent;
};

LGraph.prototype.getLeft = function () {
  return this.left;
};

LGraph.prototype.getRight = function () {
  return this.right;
};

LGraph.prototype.getTop = function () {
  return this.top;
};

LGraph.prototype.getBottom = function () {
  return this.bottom;
};

LGraph.prototype.isConnected = function () {
  return this.isConnected;
};

LGraph.prototype.add = function (obj1, sourceNode, targetNode) {
  if (sourceNode == null && targetNode == null) {
    var newNode = obj1;
    if (this.graphManager == null) {
      throw "Graph has no graph mgr!";
    }
    if (this.getNodes().indexOf(newNode) > -1) {
      throw "Node already in graph!";
    }
    newNode.owner = this;
    this.getNodes().push(newNode);

    return newNode;
  } else {
    var newEdge = obj1;
    if (!(this.getNodes().indexOf(sourceNode) > -1 && this.getNodes().indexOf(targetNode) > -1)) {
      throw "Source or target not in graph!";
    }

    if (!(sourceNode.owner == targetNode.owner && sourceNode.owner == this)) {
      throw "Both owners must be this graph!";
    }

    if (sourceNode.owner != targetNode.owner) {
      return null;
    }

    // set source and target
    newEdge.source = sourceNode;
    newEdge.target = targetNode;

    // set as intra-graph edge
    newEdge.isInterGraph = false;

    // add to graph edge list
    this.getEdges().push(newEdge);

    // add to incidency lists
    sourceNode.edges.push(newEdge);

    if (targetNode != sourceNode) {
      targetNode.edges.push(newEdge);
    }

    return newEdge;
  }
};

LGraph.prototype.remove = function (obj) {
  var node = obj;
  if (obj instanceof LNode) {
    if (node == null) {
      throw "Node is null!";
    }
    if (!(node.owner != null && node.owner == this)) {
      throw "Owner graph is invalid!";
    }
    if (this.graphManager == null) {
      throw "Owner graph manager is invalid!";
    }
    // remove incident edges first (make a copy to do it safely)
    var edgesToBeRemoved = node.edges.slice();
    var edge;
    var s = edgesToBeRemoved.length;
    for (var i = 0; i < s; i++) {
      edge = edgesToBeRemoved[i];

      if (edge.isInterGraph) {
        this.graphManager.remove(edge);
      } else {
        edge.source.owner.remove(edge);
      }
    }

    // now the node itself
    var index = this.nodes.indexOf(node);
    if (index == -1) {
      throw "Node not in owner node list!";
    }

    this.nodes.splice(index, 1);
  } else if (obj instanceof LEdge) {
    var edge = obj;
    if (edge == null) {
      throw "Edge is null!";
    }
    if (!(edge.source != null && edge.target != null)) {
      throw "Source and/or target is null!";
    }
    if (!(edge.source.owner != null && edge.target.owner != null && edge.source.owner == this && edge.target.owner == this)) {
      throw "Source and/or target owner is invalid!";
    }

    var sourceIndex = edge.source.edges.indexOf(edge);
    var targetIndex = edge.target.edges.indexOf(edge);
    if (!(sourceIndex > -1 && targetIndex > -1)) {
      throw "Source and/or target doesn't know this edge!";
    }

    edge.source.edges.splice(sourceIndex, 1);

    if (edge.target != edge.source) {
      edge.target.edges.splice(targetIndex, 1);
    }

    var index = edge.source.owner.getEdges().indexOf(edge);
    if (index == -1) {
      throw "Not in owner's edge list!";
    }

    edge.source.owner.getEdges().splice(index, 1);
  }
};

LGraph.prototype.updateLeftTop = function () {
  var top = Integer.MAX_VALUE;
  var left = Integer.MAX_VALUE;
  var nodeTop;
  var nodeLeft;
  var margin;

  var nodes = this.getNodes();
  var s = nodes.length;

  for (var i = 0; i < s; i++) {
    var lNode = nodes[i];
    nodeTop = lNode.getTop();
    nodeLeft = lNode.getLeft();

    if (top > nodeTop) {
      top = nodeTop;
    }

    if (left > nodeLeft) {
      left = nodeLeft;
    }
  }

  // Do we have any nodes in this graph?
  if (top == Integer.MAX_VALUE) {
    return null;
  }

  if (nodes[0].getParent().paddingLeft != undefined) {
    margin = nodes[0].getParent().paddingLeft;
  } else {
    margin = this.margin;
  }

  this.left = left - margin;
  this.top = top - margin;

  // Apply the margins and return the result
  return new Point(this.left, this.top);
};

LGraph.prototype.updateBounds = function (recursive) {
  // calculate bounds
  var left = Integer.MAX_VALUE;
  var right = -Integer.MAX_VALUE;
  var top = Integer.MAX_VALUE;
  var bottom = -Integer.MAX_VALUE;
  var nodeLeft;
  var nodeRight;
  var nodeTop;
  var nodeBottom;
  var margin;

  var nodes = this.nodes;
  var s = nodes.length;
  for (var i = 0; i < s; i++) {
    var lNode = nodes[i];

    if (recursive && lNode.child != null) {
      lNode.updateBounds();
    }
    nodeLeft = lNode.getLeft();
    nodeRight = lNode.getRight();
    nodeTop = lNode.getTop();
    nodeBottom = lNode.getBottom();

    if (left > nodeLeft) {
      left = nodeLeft;
    }

    if (right < nodeRight) {
      right = nodeRight;
    }

    if (top > nodeTop) {
      top = nodeTop;
    }

    if (bottom < nodeBottom) {
      bottom = nodeBottom;
    }
  }

  var boundingRect = new RectangleD(left, top, right - left, bottom - top);
  if (left == Integer.MAX_VALUE) {
    this.left = this.parent.getLeft();
    this.right = this.parent.getRight();
    this.top = this.parent.getTop();
    this.bottom = this.parent.getBottom();
  }

  if (nodes[0].getParent().paddingLeft != undefined) {
    margin = nodes[0].getParent().paddingLeft;
  } else {
    margin = this.margin;
  }

  this.left = boundingRect.x - margin;
  this.right = boundingRect.x + boundingRect.width + margin;
  this.top = boundingRect.y - margin;
  this.bottom = boundingRect.y + boundingRect.height + margin;
};

LGraph.calculateBounds = function (nodes) {
  var left = Integer.MAX_VALUE;
  var right = -Integer.MAX_VALUE;
  var top = Integer.MAX_VALUE;
  var bottom = -Integer.MAX_VALUE;
  var nodeLeft;
  var nodeRight;
  var nodeTop;
  var nodeBottom;

  var s = nodes.length;

  for (var i = 0; i < s; i++) {
    var lNode = nodes[i];
    nodeLeft = lNode.getLeft();
    nodeRight = lNode.getRight();
    nodeTop = lNode.getTop();
    nodeBottom = lNode.getBottom();

    if (left > nodeLeft) {
      left = nodeLeft;
    }

    if (right < nodeRight) {
      right = nodeRight;
    }

    if (top > nodeTop) {
      top = nodeTop;
    }

    if (bottom < nodeBottom) {
      bottom = nodeBottom;
    }
  }

  var boundingRect = new RectangleD(left, top, right - left, bottom - top);

  return boundingRect;
};

LGraph.prototype.getInclusionTreeDepth = function () {
  if (this == this.graphManager.getRoot()) {
    return 1;
  } else {
    return this.parent.getInclusionTreeDepth();
  }
};

LGraph.prototype.getEstimatedSize = function () {
  if (this.estimatedSize == Integer.MIN_VALUE) {
    throw "assert failed";
  }
  return this.estimatedSize;
};

LGraph.prototype.calcEstimatedSize = function () {
  var size = 0;
  var nodes = this.nodes;
  var s = nodes.length;

  for (var i = 0; i < s; i++) {
    var lNode = nodes[i];
    size += lNode.calcEstimatedSize();
  }

  if (size == 0) {
    this.estimatedSize = LayoutConstants.EMPTY_COMPOUND_NODE_SIZE;
  } else {
    this.estimatedSize = size / Math.sqrt(this.nodes.length);
  }

  return this.estimatedSize;
};

LGraph.prototype.updateConnected = function () {
  var self = this;
  if (this.nodes.length == 0) {
    this.isConnected = true;
    return;
  }

  var queue = new LinkedList();
  var visited = new Set();
  var currentNode = this.nodes[0];
  var neighborEdges;
  var currentNeighbor;
  var childrenOfNode = currentNode.withChildren();
  childrenOfNode.forEach(function (node) {
    queue.push(node);
    visited.add(node);
  });

  while (queue.length !== 0) {
    currentNode = queue.shift();

    // Traverse all neighbors of this node
    neighborEdges = currentNode.getEdges();
    var size = neighborEdges.length;
    for (var i = 0; i < size; i++) {
      var neighborEdge = neighborEdges[i];
      currentNeighbor = neighborEdge.getOtherEndInGraph(currentNode, this);

      // Add unvisited neighbors to the list to visit
      if (currentNeighbor != null && !visited.has(currentNeighbor)) {
        var childrenOfNeighbor = currentNeighbor.withChildren();

        childrenOfNeighbor.forEach(function (node) {
          queue.push(node);
          visited.add(node);
        });
      }
    }
  }

  this.isConnected = false;

  if (visited.size >= this.nodes.length) {
    var noOfVisitedInThisGraph = 0;

    visited.forEach(function (visitedNode) {
      if (visitedNode.owner == self) {
        noOfVisitedInThisGraph++;
      }
    });

    if (noOfVisitedInThisGraph == this.nodes.length) {
      this.isConnected = true;
    }
  }
};

module.exports = LGraph;

/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var LGraph;
var LEdge = __webpack_require__(1);

function LGraphManager(layout) {
  LGraph = __webpack_require__(5); // It may be better to initilize this out of this function but it gives an error (Right-hand side of 'instanceof' is not callable) now.
  this.layout = layout;

  this.graphs = [];
  this.edges = [];
}

LGraphManager.prototype.addRoot = function () {
  var ngraph = this.layout.newGraph();
  var nnode = this.layout.newNode(null);
  var root = this.add(ngraph, nnode);
  this.setRootGraph(root);
  return this.rootGraph;
};

LGraphManager.prototype.add = function (newGraph, parentNode, newEdge, sourceNode, targetNode) {
  //there are just 2 parameters are passed then it adds an LGraph else it adds an LEdge
  if (newEdge == null && sourceNode == null && targetNode == null) {
    if (newGraph == null) {
      throw "Graph is null!";
    }
    if (parentNode == null) {
      throw "Parent node is null!";
    }
    if (this.graphs.indexOf(newGraph) > -1) {
      throw "Graph already in this graph mgr!";
    }

    this.graphs.push(newGraph);

    if (newGraph.parent != null) {
      throw "Already has a parent!";
    }
    if (parentNode.child != null) {
      throw "Already has a child!";
    }

    newGraph.parent = parentNode;
    parentNode.child = newGraph;

    return newGraph;
  } else {
    //change the order of the parameters
    targetNode = newEdge;
    sourceNode = parentNode;
    newEdge = newGraph;
    var sourceGraph = sourceNode.getOwner();
    var targetGraph = targetNode.getOwner();

    if (!(sourceGraph != null && sourceGraph.getGraphManager() == this)) {
      throw "Source not in this graph mgr!";
    }
    if (!(targetGraph != null && targetGraph.getGraphManager() == this)) {
      throw "Target not in this graph mgr!";
    }

    if (sourceGraph == targetGraph) {
      newEdge.isInterGraph = false;
      return sourceGraph.add(newEdge, sourceNode, targetNode);
    } else {
      newEdge.isInterGraph = true;

      // set source and target
      newEdge.source = sourceNode;
      newEdge.target = targetNode;

      // add edge to inter-graph edge list
      if (this.edges.indexOf(newEdge) > -1) {
        throw "Edge already in inter-graph edge list!";
      }

      this.edges.push(newEdge);

      // add edge to source and target incidency lists
      if (!(newEdge.source != null && newEdge.target != null)) {
        throw "Edge source and/or target is null!";
      }

      if (!(newEdge.source.edges.indexOf(newEdge) == -1 && newEdge.target.edges.indexOf(newEdge) == -1)) {
        throw "Edge already in source and/or target incidency list!";
      }

      newEdge.source.edges.push(newEdge);
      newEdge.target.edges.push(newEdge);

      return newEdge;
    }
  }
};

LGraphManager.prototype.remove = function (lObj) {
  if (lObj instanceof LGraph) {
    var graph = lObj;
    if (graph.getGraphManager() != this) {
      throw "Graph not in this graph mgr";
    }
    if (!(graph == this.rootGraph || graph.parent != null && graph.parent.graphManager == this)) {
      throw "Invalid parent node!";
    }

    // first the edges (make a copy to do it safely)
    var edgesToBeRemoved = [];

    edgesToBeRemoved = edgesToBeRemoved.concat(graph.getEdges());

    var edge;
    var s = edgesToBeRemoved.length;
    for (var i = 0; i < s; i++) {
      edge = edgesToBeRemoved[i];
      graph.remove(edge);
    }

    // then the nodes (make a copy to do it safely)
    var nodesToBeRemoved = [];

    nodesToBeRemoved = nodesToBeRemoved.concat(graph.getNodes());

    var node;
    s = nodesToBeRemoved.length;
    for (var i = 0; i < s; i++) {
      node = nodesToBeRemoved[i];
      graph.remove(node);
    }

    // check if graph is the root
    if (graph == this.rootGraph) {
      this.setRootGraph(null);
    }

    // now remove the graph itself
    var index = this.graphs.indexOf(graph);
    this.graphs.splice(index, 1);

    // also reset the parent of the graph
    graph.parent = null;
  } else if (lObj instanceof LEdge) {
    edge = lObj;
    if (edge == null) {
      throw "Edge is null!";
    }
    if (!edge.isInterGraph) {
      throw "Not an inter-graph edge!";
    }
    if (!(edge.source != null && edge.target != null)) {
      throw "Source and/or target is null!";
    }

    // remove edge from source and target nodes' incidency lists

    if (!(edge.source.edges.indexOf(edge) != -1 && edge.target.edges.indexOf(edge) != -1)) {
      throw "Source and/or target doesn't know this edge!";
    }

    var index = edge.source.edges.indexOf(edge);
    edge.source.edges.splice(index, 1);
    index = edge.target.edges.indexOf(edge);
    edge.target.edges.splice(index, 1);

    // remove edge from owner graph manager's inter-graph edge list

    if (!(edge.source.owner != null && edge.source.owner.getGraphManager() != null)) {
      throw "Edge owner graph or owner graph manager is null!";
    }
    if (edge.source.owner.getGraphManager().edges.indexOf(edge) == -1) {
      throw "Not in owner graph manager's edge list!";
    }

    var index = edge.source.owner.getGraphManager().edges.indexOf(edge);
    edge.source.owner.getGraphManager().edges.splice(index, 1);
  }
};

LGraphManager.prototype.updateBounds = function () {
  this.rootGraph.updateBounds(true);
};

LGraphManager.prototype.getGraphs = function () {
  return this.graphs;
};

LGraphManager.prototype.getAllNodes = function () {
  if (this.allNodes == null) {
    var nodeList = [];
    var graphs = this.getGraphs();
    var s = graphs.length;
    for (var i = 0; i < s; i++) {
      nodeList = nodeList.concat(graphs[i].getNodes());
    }
    this.allNodes = nodeList;
  }
  return this.allNodes;
};

LGraphManager.prototype.resetAllNodes = function () {
  this.allNodes = null;
};

LGraphManager.prototype.resetAllEdges = function () {
  this.allEdges = null;
};

LGraphManager.prototype.resetAllNodesToApplyGravitation = function () {
  this.allNodesToApplyGravitation = null;
};

LGraphManager.prototype.getAllEdges = function () {
  if (this.allEdges == null) {
    var edgeList = [];
    var graphs = this.getGraphs();
    var s = graphs.length;
    for (var i = 0; i < graphs.length; i++) {
      edgeList = edgeList.concat(graphs[i].getEdges());
    }

    edgeList = edgeList.concat(this.edges);

    this.allEdges = edgeList;
  }
  return this.allEdges;
};

LGraphManager.prototype.getAllNodesToApplyGravitation = function () {
  return this.allNodesToApplyGravitation;
};

LGraphManager.prototype.setAllNodesToApplyGravitation = function (nodeList) {
  if (this.allNodesToApplyGravitation != null) {
    throw "assert failed";
  }

  this.allNodesToApplyGravitation = nodeList;
};

LGraphManager.prototype.getRoot = function () {
  return this.rootGraph;
};

LGraphManager.prototype.setRootGraph = function (graph) {
  if (graph.getGraphManager() != this) {
    throw "Root not in this graph mgr!";
  }

  this.rootGraph = graph;
  // root graph must have a root node associated with it for convenience
  if (graph.parent == null) {
    graph.parent = this.layout.newNode("Root node");
  }
};

LGraphManager.prototype.getLayout = function () {
  return this.layout;
};

LGraphManager.prototype.isOneAncestorOfOther = function (firstNode, secondNode) {
  if (!(firstNode != null && secondNode != null)) {
    throw "assert failed";
  }

  if (firstNode == secondNode) {
    return true;
  }
  // Is second node an ancestor of the first one?
  var ownerGraph = firstNode.getOwner();
  var parentNode;

  do {
    parentNode = ownerGraph.getParent();

    if (parentNode == null) {
      break;
    }

    if (parentNode == secondNode) {
      return true;
    }

    ownerGraph = parentNode.getOwner();
    if (ownerGraph == null) {
      break;
    }
  } while (true);
  // Is first node an ancestor of the second one?
  ownerGraph = secondNode.getOwner();

  do {
    parentNode = ownerGraph.getParent();

    if (parentNode == null) {
      break;
    }

    if (parentNode == firstNode) {
      return true;
    }

    ownerGraph = parentNode.getOwner();
    if (ownerGraph == null) {
      break;
    }
  } while (true);

  return false;
};

LGraphManager.prototype.calcLowestCommonAncestors = function () {
  var edge;
  var sourceNode;
  var targetNode;
  var sourceAncestorGraph;
  var targetAncestorGraph;

  var edges = this.getAllEdges();
  var s = edges.length;
  for (var i = 0; i < s; i++) {
    edge = edges[i];

    sourceNode = edge.source;
    targetNode = edge.target;
    edge.lca = null;
    edge.sourceInLca = sourceNode;
    edge.targetInLca = targetNode;

    if (sourceNode == targetNode) {
      edge.lca = sourceNode.getOwner();
      continue;
    }

    sourceAncestorGraph = sourceNode.getOwner();

    while (edge.lca == null) {
      edge.targetInLca = targetNode;
      targetAncestorGraph = targetNode.getOwner();

      while (edge.lca == null) {
        if (targetAncestorGraph == sourceAncestorGraph) {
          edge.lca = targetAncestorGraph;
          break;
        }

        if (targetAncestorGraph == this.rootGraph) {
          break;
        }

        if (edge.lca != null) {
          throw "assert failed";
        }
        edge.targetInLca = targetAncestorGraph.getParent();
        targetAncestorGraph = edge.targetInLca.getOwner();
      }

      if (sourceAncestorGraph == this.rootGraph) {
        break;
      }

      if (edge.lca == null) {
        edge.sourceInLca = sourceAncestorGraph.getParent();
        sourceAncestorGraph = edge.sourceInLca.getOwner();
      }
    }

    if (edge.lca == null) {
      throw "assert failed";
    }
  }
};

LGraphManager.prototype.calcLowestCommonAncestor = function (firstNode, secondNode) {
  if (firstNode == secondNode) {
    return firstNode.getOwner();
  }
  var firstOwnerGraph = firstNode.getOwner();

  do {
    if (firstOwnerGraph == null) {
      break;
    }
    var secondOwnerGraph = secondNode.getOwner();

    do {
      if (secondOwnerGraph == null) {
        break;
      }

      if (secondOwnerGraph == firstOwnerGraph) {
        return secondOwnerGraph;
      }
      secondOwnerGraph = secondOwnerGraph.getParent().getOwner();
    } while (true);

    firstOwnerGraph = firstOwnerGraph.getParent().getOwner();
  } while (true);

  return firstOwnerGraph;
};

LGraphManager.prototype.calcInclusionTreeDepths = function (graph, depth) {
  if (graph == null && depth == null) {
    graph = this.rootGraph;
    depth = 1;
  }
  var node;

  var nodes = graph.getNodes();
  var s = nodes.length;
  for (var i = 0; i < s; i++) {
    node = nodes[i];
    node.inclusionTreeDepth = depth;

    if (node.child != null) {
      this.calcInclusionTreeDepths(node.child, depth + 1);
    }
  }
};

LGraphManager.prototype.includesInvalidEdge = function () {
  var edge;

  var s = this.edges.length;
  for (var i = 0; i < s; i++) {
    edge = this.edges[i];

    if (this.isOneAncestorOfOther(edge.source, edge.target)) {
      return true;
    }
  }
  return false;
};

module.exports = LGraphManager;

/***/ }),
/* 7 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var LayoutConstants = __webpack_require__(0);

function FDLayoutConstants() {}

//FDLayoutConstants inherits static props in LayoutConstants
for (var prop in LayoutConstants) {
  FDLayoutConstants[prop] = LayoutConstants[prop];
}

FDLayoutConstants.MAX_ITERATIONS = 2500;

FDLayoutConstants.DEFAULT_EDGE_LENGTH = 50;
FDLayoutConstants.DEFAULT_SPRING_STRENGTH = 0.45;
FDLayoutConstants.DEFAULT_REPULSION_STRENGTH = 4500.0;
FDLayoutConstants.DEFAULT_GRAVITY_STRENGTH = 0.4;
FDLayoutConstants.DEFAULT_COMPOUND_GRAVITY_STRENGTH = 1.0;
FDLayoutConstants.DEFAULT_GRAVITY_RANGE_FACTOR = 3.8;
FDLayoutConstants.DEFAULT_COMPOUND_GRAVITY_RANGE_FACTOR = 1.5;
FDLayoutConstants.DEFAULT_USE_SMART_IDEAL_EDGE_LENGTH_CALCULATION = true;
FDLayoutConstants.DEFAULT_USE_SMART_REPULSION_RANGE_CALCULATION = true;
FDLayoutConstants.DEFAULT_COOLING_FACTOR_INCREMENTAL = 0.3;
FDLayoutConstants.COOLING_ADAPTATION_FACTOR = 0.33;
FDLayoutConstants.ADAPTATION_LOWER_NODE_LIMIT = 1000;
FDLayoutConstants.ADAPTATION_UPPER_NODE_LIMIT = 5000;
FDLayoutConstants.MAX_NODE_DISPLACEMENT_INCREMENTAL = 100.0;
FDLayoutConstants.MAX_NODE_DISPLACEMENT = FDLayoutConstants.MAX_NODE_DISPLACEMENT_INCREMENTAL * 3;
FDLayoutConstants.MIN_REPULSION_DIST = FDLayoutConstants.DEFAULT_EDGE_LENGTH / 10.0;
FDLayoutConstants.CONVERGENCE_CHECK_PERIOD = 100;
FDLayoutConstants.PER_LEVEL_IDEAL_EDGE_LENGTH_FACTOR = 0.1;
FDLayoutConstants.MIN_EDGE_LENGTH = 1;
FDLayoutConstants.GRID_CALCULATION_CHECK_PERIOD = 10;

module.exports = FDLayoutConstants;

/***/ }),
/* 8 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * This class maintains a list of static geometry related utility methods.
 *
 *
 * Copyright: i-Vis Research Group, Bilkent University, 2007 - present
 */

var Point = __webpack_require__(12);

function IGeometry() {}

/**
 * This method calculates *half* the amount in x and y directions of the two
 * input rectangles needed to separate them keeping their respective
 * positioning, and returns the result in the input array. An input
 * separation buffer added to the amount in both directions. We assume that
 * the two rectangles do intersect.
 */
IGeometry.calcSeparationAmount = function (rectA, rectB, overlapAmount, separationBuffer) {
  if (!rectA.intersects(rectB)) {
    throw "assert failed";
  }

  var directions = new Array(2);

  this.decideDirectionsForOverlappingNodes(rectA, rectB, directions);

  overlapAmount[0] = Math.min(rectA.getRight(), rectB.getRight()) - Math.max(rectA.x, rectB.x);
  overlapAmount[1] = Math.min(rectA.getBottom(), rectB.getBottom()) - Math.max(rectA.y, rectB.y);

  // update the overlapping amounts for the following cases:
  if (rectA.getX() <= rectB.getX() && rectA.getRight() >= rectB.getRight()) {
    /* Case x.1:
    *
    * rectA
    * 	|                       |
    * 	|        _________      |
    * 	|        |       |      |
    * 	|________|_______|______|
    * 			 |       |
    *           |       |
    *        rectB
    */
    overlapAmount[0] += Math.min(rectB.getX() - rectA.getX(), rectA.getRight() - rectB.getRight());
  } else if (rectB.getX() <= rectA.getX() && rectB.getRight() >= rectA.getRight()) {
    /* Case x.2:
    *
    * rectB
    * 	|                       |
    * 	|        _________      |
    * 	|        |       |      |
    * 	|________|_______|______|
    * 			 |       |
    *           |       |
    *        rectA
    */
    overlapAmount[0] += Math.min(rectA.getX() - rectB.getX(), rectB.getRight() - rectA.getRight());
  }
  if (rectA.getY() <= rectB.getY() && rectA.getBottom() >= rectB.getBottom()) {
    /* Case y.1:
     *          ________ rectA
     *         |
     *         |
     *   ______|____  rectB
     *         |    |
     *         |    |
     *   ______|____|
     *         |
     *         |
     *         |________
     *
     */
    overlapAmount[1] += Math.min(rectB.getY() - rectA.getY(), rectA.getBottom() - rectB.getBottom());
  } else if (rectB.getY() <= rectA.getY() && rectB.getBottom() >= rectA.getBottom()) {
    /* Case y.2:
    *          ________ rectB
    *         |
    *         |
    *   ______|____  rectA
    *         |    |
    *         |    |
    *   ______|____|
    *         |
    *         |
    *         |________
    *
    */
    overlapAmount[1] += Math.min(rectA.getY() - rectB.getY(), rectB.getBottom() - rectA.getBottom());
  }

  // find slope of the line passes two centers
  var slope = Math.abs((rectB.getCenterY() - rectA.getCenterY()) / (rectB.getCenterX() - rectA.getCenterX()));
  // if centers are overlapped
  if (rectB.getCenterY() === rectA.getCenterY() && rectB.getCenterX() === rectA.getCenterX()) {
    // assume the slope is 1 (45 degree)
    slope = 1.0;
  }

  var moveByY = slope * overlapAmount[0];
  var moveByX = overlapAmount[1] / slope;
  if (overlapAmount[0] < moveByX) {
    moveByX = overlapAmount[0];
  } else {
    moveByY = overlapAmount[1];
  }
  // return half the amount so that if each rectangle is moved by these
  // amounts in opposite directions, overlap will be resolved
  overlapAmount[0] = -1 * directions[0] * (moveByX / 2 + separationBuffer);
  overlapAmount[1] = -1 * directions[1] * (moveByY / 2 + separationBuffer);
};

/**
 * This method decides the separation direction of overlapping nodes
 *
 * if directions[0] = -1, then rectA goes left
 * if directions[0] = 1,  then rectA goes right
 * if directions[1] = -1, then rectA goes up
 * if directions[1] = 1,  then rectA goes down
 */
IGeometry.decideDirectionsForOverlappingNodes = function (rectA, rectB, directions) {
  if (rectA.getCenterX() < rectB.getCenterX()) {
    directions[0] = -1;
  } else {
    directions[0] = 1;
  }

  if (rectA.getCenterY() < rectB.getCenterY()) {
    directions[1] = -1;
  } else {
    directions[1] = 1;
  }
};

/**
 * This method calculates the intersection (clipping) points of the two
 * input rectangles with line segment defined by the centers of these two
 * rectangles. The clipping points are saved in the input double array and
 * whether or not the two rectangles overlap is returned.
 */
IGeometry.getIntersection2 = function (rectA, rectB, result) {
  //result[0-1] will contain clipPoint of rectA, result[2-3] will contain clipPoint of rectB
  var p1x = rectA.getCenterX();
  var p1y = rectA.getCenterY();
  var p2x = rectB.getCenterX();
  var p2y = rectB.getCenterY();

  //if two rectangles intersect, then clipping points are centers
  if (rectA.intersects(rectB)) {
    result[0] = p1x;
    result[1] = p1y;
    result[2] = p2x;
    result[3] = p2y;
    return true;
  }
  //variables for rectA
  var topLeftAx = rectA.getX();
  var topLeftAy = rectA.getY();
  var topRightAx = rectA.getRight();
  var bottomLeftAx = rectA.getX();
  var bottomLeftAy = rectA.getBottom();
  var bottomRightAx = rectA.getRight();
  var halfWidthA = rectA.getWidthHalf();
  var halfHeightA = rectA.getHeightHalf();
  //variables for rectB
  var topLeftBx = rectB.getX();
  var topLeftBy = rectB.getY();
  var topRightBx = rectB.getRight();
  var bottomLeftBx = rectB.getX();
  var bottomLeftBy = rectB.getBottom();
  var bottomRightBx = rectB.getRight();
  var halfWidthB = rectB.getWidthHalf();
  var halfHeightB = rectB.getHeightHalf();

  //flag whether clipping points are found
  var clipPointAFound = false;
  var clipPointBFound = false;

  // line is vertical
  if (p1x === p2x) {
    if (p1y > p2y) {
      result[0] = p1x;
      result[1] = topLeftAy;
      result[2] = p2x;
      result[3] = bottomLeftBy;
      return false;
    } else if (p1y < p2y) {
      result[0] = p1x;
      result[1] = bottomLeftAy;
      result[2] = p2x;
      result[3] = topLeftBy;
      return false;
    } else {
      //not line, return null;
    }
  }
  // line is horizontal
  else if (p1y === p2y) {
      if (p1x > p2x) {
        result[0] = topLeftAx;
        result[1] = p1y;
        result[2] = topRightBx;
        result[3] = p2y;
        return false;
      } else if (p1x < p2x) {
        result[0] = topRightAx;
        result[1] = p1y;
        result[2] = topLeftBx;
        result[3] = p2y;
        return false;
      } else {
        //not valid line, return null;
      }
    } else {
      //slopes of rectA's and rectB's diagonals
      var slopeA = rectA.height / rectA.width;
      var slopeB = rectB.height / rectB.width;

      //slope of line between center of rectA and center of rectB
      var slopePrime = (p2y - p1y) / (p2x - p1x);
      var cardinalDirectionA = void 0;
      var cardinalDirectionB = void 0;
      var tempPointAx = void 0;
      var tempPointAy = void 0;
      var tempPointBx = void 0;
      var tempPointBy = void 0;

      //determine whether clipping point is the corner of nodeA
      if (-slopeA === slopePrime) {
        if (p1x > p2x) {
          result[0] = bottomLeftAx;
          result[1] = bottomLeftAy;
          clipPointAFound = true;
        } else {
          result[0] = topRightAx;
          result[1] = topLeftAy;
          clipPointAFound = true;
        }
      } else if (slopeA === slopePrime) {
        if (p1x > p2x) {
          result[0] = topLeftAx;
          result[1] = topLeftAy;
          clipPointAFound = true;
        } else {
          result[0] = bottomRightAx;
          result[1] = bottomLeftAy;
          clipPointAFound = true;
        }
      }

      //determine whether clipping point is the corner of nodeB
      if (-slopeB === slopePrime) {
        if (p2x > p1x) {
          result[2] = bottomLeftBx;
          result[3] = bottomLeftBy;
          clipPointBFound = true;
        } else {
          result[2] = topRightBx;
          result[3] = topLeftBy;
          clipPointBFound = true;
        }
      } else if (slopeB === slopePrime) {
        if (p2x > p1x) {
          result[2] = topLeftBx;
          result[3] = topLeftBy;
          clipPointBFound = true;
        } else {
          result[2] = bottomRightBx;
          result[3] = bottomLeftBy;
          clipPointBFound = true;
        }
      }

      //if both clipping points are corners
      if (clipPointAFound && clipPointBFound) {
        return false;
      }

      //determine Cardinal Direction of rectangles
      if (p1x > p2x) {
        if (p1y > p2y) {
          cardinalDirectionA = this.getCardinalDirection(slopeA, slopePrime, 4);
          cardinalDirectionB = this.getCardinalDirection(slopeB, slopePrime, 2);
        } else {
          cardinalDirectionA = this.getCardinalDirection(-slopeA, slopePrime, 3);
          cardinalDirectionB = this.getCardinalDirection(-slopeB, slopePrime, 1);
        }
      } else {
        if (p1y > p2y) {
          cardinalDirectionA = this.getCardinalDirection(-slopeA, slopePrime, 1);
          cardinalDirectionB = this.getCardinalDirection(-slopeB, slopePrime, 3);
        } else {
          cardinalDirectionA = this.getCardinalDirection(slopeA, slopePrime, 2);
          cardinalDirectionB = this.getCardinalDirection(slopeB, slopePrime, 4);
        }
      }
      //calculate clipping Point if it is not found before
      if (!clipPointAFound) {
        switch (cardinalDirectionA) {
          case 1:
            tempPointAy = topLeftAy;
            tempPointAx = p1x + -halfHeightA / slopePrime;
            result[0] = tempPointAx;
            result[1] = tempPointAy;
            break;
          case 2:
            tempPointAx = bottomRightAx;
            tempPointAy = p1y + halfWidthA * slopePrime;
            result[0] = tempPointAx;
            result[1] = tempPointAy;
            break;
          case 3:
            tempPointAy = bottomLeftAy;
            tempPointAx = p1x + halfHeightA / slopePrime;
            result[0] = tempPointAx;
            result[1] = tempPointAy;
            break;
          case 4:
            tempPointAx = bottomLeftAx;
            tempPointAy = p1y + -halfWidthA * slopePrime;
            result[0] = tempPointAx;
            result[1] = tempPointAy;
            break;
        }
      }
      if (!clipPointBFound) {
        switch (cardinalDirectionB) {
          case 1:
            tempPointBy = topLeftBy;
            tempPointBx = p2x + -halfHeightB / slopePrime;
            result[2] = tempPointBx;
            result[3] = tempPointBy;
            break;
          case 2:
            tempPointBx = bottomRightBx;
            tempPointBy = p2y + halfWidthB * slopePrime;
            result[2] = tempPointBx;
            result[3] = tempPointBy;
            break;
          case 3:
            tempPointBy = bottomLeftBy;
            tempPointBx = p2x + halfHeightB / slopePrime;
            result[2] = tempPointBx;
            result[3] = tempPointBy;
            break;
          case 4:
            tempPointBx = bottomLeftBx;
            tempPointBy = p2y + -halfWidthB * slopePrime;
            result[2] = tempPointBx;
            result[3] = tempPointBy;
            break;
        }
      }
    }
  return false;
};

/**
 * This method returns in which cardinal direction does input point stays
 * 1: North
 * 2: East
 * 3: South
 * 4: West
 */
IGeometry.getCardinalDirection = function (slope, slopePrime, line) {
  if (slope > slopePrime) {
    return line;
  } else {
    return 1 + line % 4;
  }
};

/**
 * This method calculates the intersection of the two lines defined by
 * point pairs (s1,s2) and (f1,f2).
 */
IGeometry.getIntersection = function (s1, s2, f1, f2) {
  if (f2 == null) {
    return this.getIntersection2(s1, s2, f1);
  }

  var x1 = s1.x;
  var y1 = s1.y;
  var x2 = s2.x;
  var y2 = s2.y;
  var x3 = f1.x;
  var y3 = f1.y;
  var x4 = f2.x;
  var y4 = f2.y;
  var x = void 0,
      y = void 0; // intersection point
  var a1 = void 0,
      a2 = void 0,
      b1 = void 0,
      b2 = void 0,
      c1 = void 0,
      c2 = void 0; // coefficients of line eqns.
  var denom = void 0;

  a1 = y2 - y1;
  b1 = x1 - x2;
  c1 = x2 * y1 - x1 * y2; // { a1*x + b1*y + c1 = 0 is line 1 }

  a2 = y4 - y3;
  b2 = x3 - x4;
  c2 = x4 * y3 - x3 * y4; // { a2*x + b2*y + c2 = 0 is line 2 }

  denom = a1 * b2 - a2 * b1;

  if (denom === 0) {
    return null;
  }

  x = (b1 * c2 - b2 * c1) / denom;
  y = (a2 * c1 - a1 * c2) / denom;

  return new Point(x, y);
};

/**
 * This method finds and returns the angle of the vector from the + x-axis
 * in clockwise direction (compatible w/ Java coordinate system!).
 */
IGeometry.angleOfVector = function (Cx, Cy, Nx, Ny) {
  var C_angle = void 0;

  if (Cx !== Nx) {
    C_angle = Math.atan((Ny - Cy) / (Nx - Cx));

    if (Nx < Cx) {
      C_angle += Math.PI;
    } else if (Ny < Cy) {
      C_angle += this.TWO_PI;
    }
  } else if (Ny < Cy) {
    C_angle = this.ONE_AND_HALF_PI; // 270 degrees
  } else {
    C_angle = this.HALF_PI; // 90 degrees
  }

  return C_angle;
};

/**
 * This method checks whether the given two line segments (one with point
 * p1 and p2, the other with point p3 and p4) intersect at a point other
 * than these points.
 */
IGeometry.doIntersect = function (p1, p2, p3, p4) {
  var a = p1.x;
  var b = p1.y;
  var c = p2.x;
  var d = p2.y;
  var p = p3.x;
  var q = p3.y;
  var r = p4.x;
  var s = p4.y;
  var det = (c - a) * (s - q) - (r - p) * (d - b);

  if (det === 0) {
    return false;
  } else {
    var lambda = ((s - q) * (r - a) + (p - r) * (s - b)) / det;
    var gamma = ((b - d) * (r - a) + (c - a) * (s - b)) / det;
    return 0 < lambda && lambda < 1 && 0 < gamma && gamma < 1;
  }
};

// -----------------------------------------------------------------------------
// Section: Class Constants
// -----------------------------------------------------------------------------
/**
 * Some useful pre-calculated constants
 */
IGeometry.HALF_PI = 0.5 * Math.PI;
IGeometry.ONE_AND_HALF_PI = 1.5 * Math.PI;
IGeometry.TWO_PI = 2.0 * Math.PI;
IGeometry.THREE_PI = 3.0 * Math.PI;

module.exports = IGeometry;

/***/ }),
/* 9 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function IMath() {}

/**
 * This method returns the sign of the input value.
 */
IMath.sign = function (value) {
  if (value > 0) {
    return 1;
  } else if (value < 0) {
    return -1;
  } else {
    return 0;
  }
};

IMath.floor = function (value) {
  return value < 0 ? Math.ceil(value) : Math.floor(value);
};

IMath.ceil = function (value) {
  return value < 0 ? Math.floor(value) : Math.ceil(value);
};

module.exports = IMath;

/***/ }),
/* 10 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function Integer() {}

Integer.MAX_VALUE = 2147483647;
Integer.MIN_VALUE = -2147483648;

module.exports = Integer;

/***/ }),
/* 11 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _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; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var nodeFrom = function nodeFrom(value) {
  return { value: value, next: null, prev: null };
};

var add = function add(prev, node, next, list) {
  if (prev !== null) {
    prev.next = node;
  } else {
    list.head = node;
  }

  if (next !== null) {
    next.prev = node;
  } else {
    list.tail = node;
  }

  node.prev = prev;
  node.next = next;

  list.length++;

  return node;
};

var _remove = function _remove(node, list) {
  var prev = node.prev,
      next = node.next;


  if (prev !== null) {
    prev.next = next;
  } else {
    list.head = next;
  }

  if (next !== null) {
    next.prev = prev;
  } else {
    list.tail = prev;
  }

  node.prev = node.next = null;

  list.length--;

  return node;
};

var LinkedList = function () {
  function LinkedList(vals) {
    var _this = this;

    _classCallCheck(this, LinkedList);

    this.length = 0;
    this.head = null;
    this.tail = null;

    if (vals != null) {
      vals.forEach(function (v) {
        return _this.push(v);
      });
    }
  }

  _createClass(LinkedList, [{
    key: "size",
    value: function size() {
      return this.length;
    }
  }, {
    key: "insertBefore",
    value: function insertBefore(val, otherNode) {
      return add(otherNode.prev, nodeFrom(val), otherNode, this);
    }
  }, {
    key: "insertAfter",
    value: function insertAfter(val, otherNode) {
      return add(otherNode, nodeFrom(val), otherNode.next, this);
    }
  }, {
    key: "insertNodeBefore",
    value: function insertNodeBefore(newNode, otherNode) {
      return add(otherNode.prev, newNode, otherNode, this);
    }
  }, {
    key: "insertNodeAfter",
    value: function insertNodeAfter(newNode, otherNode) {
      return add(otherNode, newNode, otherNode.next, this);
    }
  }, {
    key: "push",
    value: function push(val) {
      return add(this.tail, nodeFrom(val), null, this);
    }
  }, {
    key: "unshift",
    value: function unshift(val) {
      return add(null, nodeFrom(val), this.head, this);
    }
  }, {
    key: "remove",
    value: function remove(node) {
      return _remove(node, this);
    }
  }, {
    key: "pop",
    value: function pop() {
      return _remove(this.tail, this).value;
    }
  }, {
    key: "popNode",
    value: function popNode() {
      return _remove(this.tail, this);
    }
  }, {
    key: "shift",
    value: function shift() {
      return _remove(this.head, this).value;
    }
  }, {
    key: "shiftNode",
    value: function shiftNode() {
      return _remove(this.head, this);
    }
  }, {
    key: "get_object_at",
    value: function get_object_at(index) {
      if (index <= this.length()) {
        var i = 1;
        var current = this.head;
        while (i < index) {
          current = current.next;
          i++;
        }
        return current.value;
      }
    }
  }, {
    key: "set_object_at",
    value: function set_object_at(index, value) {
      if (index <= this.length()) {
        var i = 1;
        var current = this.head;
        while (i < index) {
          current = current.next;
          i++;
        }
        current.value = value;
      }
    }
  }]);

  return LinkedList;
}();

module.exports = LinkedList;

/***/ }),
/* 12 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/*
 *This class is the javascript implementation of the Point.java class in jdk
 */
function Point(x, y, p) {
  this.x = null;
  this.y = null;
  if (x == null && y == null && p == null) {
    this.x = 0;
    this.y = 0;
  } else if (typeof x == 'number' && typeof y == 'number' && p == null) {
    this.x = x;
    this.y = y;
  } else if (x.constructor.name == 'Point' && y == null && p == null) {
    p = x;
    this.x = p.x;
    this.y = p.y;
  }
}

Point.prototype.getX = function () {
  return this.x;
};

Point.prototype.getY = function () {
  return this.y;
};

Point.prototype.getLocation = function () {
  return new Point(this.x, this.y);
};

Point.prototype.setLocation = function (x, y, p) {
  if (x.constructor.name == 'Point' && y == null && p == null) {
    p = x;
    this.setLocation(p.x, p.y);
  } else if (typeof x == 'number' && typeof y == 'number' && p == null) {
    //if both parameters are integer just move (x,y) location
    if (parseInt(x) == x && parseInt(y) == y) {
      this.move(x, y);
    } else {
      this.x = Math.floor(x + 0.5);
      this.y = Math.floor(y + 0.5);
    }
  }
};

Point.prototype.move = function (x, y) {
  this.x = x;
  this.y = y;
};

Point.prototype.translate = function (dx, dy) {
  this.x += dx;
  this.y += dy;
};

Point.prototype.equals = function (obj) {
  if (obj.constructor.name == "Point") {
    var pt = obj;
    return this.x == pt.x && this.y == pt.y;
  }
  return this == obj;
};

Point.prototype.toString = function () {
  return new Point().constructor.name + "[x=" + this.x + ",y=" + this.y + "]";
};

module.exports = Point;

/***/ }),
/* 13 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function RectangleD(x, y, width, height) {
  this.x = 0;
  this.y = 0;
  this.width = 0;
  this.height = 0;

  if (x != null && y != null && width != null && height != null) {
    this.x = x;
    this.y = y;
    this.width = width;
    this.height = height;
  }
}

RectangleD.prototype.getX = function () {
  return this.x;
};

RectangleD.prototype.setX = function (x) {
  this.x = x;
};

RectangleD.prototype.getY = function () {
  return this.y;
};

RectangleD.prototype.setY = function (y) {
  this.y = y;
};

RectangleD.prototype.getWidth = function () {
  return this.width;
};

RectangleD.prototype.setWidth = function (width) {
  this.width = width;
};

RectangleD.prototype.getHeight = function () {
  return this.height;
};

RectangleD.prototype.setHeight = function (height) {
  this.height = height;
};

RectangleD.prototype.getRight = function () {
  return this.x + this.width;
};

RectangleD.prototype.getBottom = function () {
  return this.y + this.height;
};

RectangleD.prototype.intersects = function (a) {
  if (this.getRight() < a.x) {
    return false;
  }

  if (this.getBottom() < a.y) {
    return false;
  }

  if (a.getRight() < this.x) {
    return false;
  }

  if (a.getBottom() < this.y) {
    return false;
  }

  return true;
};

RectangleD.prototype.getCenterX = function () {
  return this.x + this.width / 2;
};

RectangleD.prototype.getMinX = function () {
  return this.getX();
};

RectangleD.prototype.getMaxX = function () {
  return this.getX() + this.width;
};

RectangleD.prototype.getCenterY = function () {
  return this.y + this.height / 2;
};

RectangleD.prototype.getMinY = function () {
  return this.getY();
};

RectangleD.prototype.getMaxY = function () {
  return this.getY() + this.height;
};

RectangleD.prototype.getWidthHalf = function () {
  return this.width / 2;
};

RectangleD.prototype.getHeightHalf = function () {
  return this.height / 2;
};

module.exports = RectangleD;

/***/ }),
/* 14 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

function UniqueIDGeneretor() {}

UniqueIDGeneretor.lastID = 0;

UniqueIDGeneretor.createID = function (obj) {
  if (UniqueIDGeneretor.isPrimitive(obj)) {
    return obj;
  }
  if (obj.uniqueID != null) {
    return obj.uniqueID;
  }
  obj.uniqueID = UniqueIDGeneretor.getString();
  UniqueIDGeneretor.lastID++;
  return obj.uniqueID;
};

UniqueIDGeneretor.getString = function (id) {
  if (id == null) id = UniqueIDGeneretor.lastID;
  return "Object#" + id + "";
};

UniqueIDGeneretor.isPrimitive = function (arg) {
  var type = typeof arg === "undefined" ? "undefined" : _typeof(arg);
  return arg == null || type != "object" && type != "function";
};

module.exports = UniqueIDGeneretor;

/***/ }),
/* 15 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

var LayoutConstants = __webpack_require__(0);
var LGraphManager = __webpack_require__(6);
var LNode = __webpack_require__(3);
var LEdge = __webpack_require__(1);
var LGraph = __webpack_require__(5);
var PointD = __webpack_require__(4);
var Transform = __webpack_require__(17);
var Emitter = __webpack_require__(27);

function Layout(isRemoteUse) {
  Emitter.call(this);

  //Layout Quality: 0:draft, 1:default, 2:proof
  this.layoutQuality = LayoutConstants.QUALITY;
  //Whether layout should create bendpoints as needed or not
  this.createBendsAsNeeded = LayoutConstants.DEFAULT_CREATE_BENDS_AS_NEEDED;
  //Whether layout should be incremental or not
  this.incremental = LayoutConstants.DEFAULT_INCREMENTAL;
  //Whether we animate from before to after layout node positions
  this.animationOnLayout = LayoutConstants.DEFAULT_ANIMATION_ON_LAYOUT;
  //Whether we animate the layout process or not
  this.animationDuringLayout = LayoutConstants.DEFAULT_ANIMATION_DURING_LAYOUT;
  //Number iterations that should be done between two successive animations
  this.animationPeriod = LayoutConstants.DEFAULT_ANIMATION_PERIOD;
  /**
   * Whether or not leaf nodes (non-compound nodes) are of uniform sizes. When
   * they are, both spring and repulsion forces between two leaf nodes can be
   * calculated without the expensive clipping point calculations, resulting
   * in major speed-up.
   */
  this.uniformLeafNodeSizes = LayoutConstants.DEFAULT_UNIFORM_LEAF_NODE_SIZES;
  /**
   * This is used for creation of bendpoints by using dummy nodes and edges.
   * Maps an LEdge to its dummy bendpoint path.
   */
  this.edgeToDummyNodes = new Map();
  this.graphManager = new LGraphManager(this);
  this.isLayoutFinished = false;
  this.isSubLayout = false;
  this.isRemoteUse = false;

  if (isRemoteUse != null) {
    this.isRemoteUse = isRemoteUse;
  }
}

Layout.RANDOM_SEED = 1;

Layout.prototype = Object.create(Emitter.prototype);

Layout.prototype.getGraphManager = function () {
  return this.graphManager;
};

Layout.prototype.getAllNodes = function () {
  return this.graphManager.getAllNodes();
};

Layout.prototype.getAllEdges = function () {
  return this.graphManager.getAllEdges();
};

Layout.prototype.getAllNodesToApplyGravitation = function () {
  return this.graphManager.getAllNodesToApplyGravitation();
};

Layout.prototype.newGraphManager = function () {
  var gm = new LGraphManager(this);
  this.graphManager = gm;
  return gm;
};

Layout.prototype.newGraph = function (vGraph) {
  return new LGraph(null, this.graphManager, vGraph);
};

Layout.prototype.newNode = function (vNode) {
  return new LNode(this.graphManager, vNode);
};

Layout.prototype.newEdge = function (vEdge) {
  return new LEdge(null, null, vEdge);
};

Layout.prototype.checkLayoutSuccess = function () {
  return this.graphManager.getRoot() == null || this.graphManager.getRoot().getNodes().length == 0 || this.graphManager.includesInvalidEdge();
};

Layout.prototype.runLayout = function () {
  this.isLayoutFinished = false;

  if (this.tilingPreLayout) {
    this.tilingPreLayout();
  }

  this.initParameters();
  var isLayoutSuccessfull;

  if (this.checkLayoutSuccess()) {
    isLayoutSuccessfull = false;
  } else {
    isLayoutSuccessfull = this.layout();
  }

  if (LayoutConstants.ANIMATE === 'during') {
    // If this is a 'during' layout animation. Layout is not finished yet. 
    // We need to perform these in index.js when layout is really finished.
    return false;
  }

  if (isLayoutSuccessfull) {
    if (!this.isSubLayout) {
      this.doPostLayout();
    }
  }

  if (this.tilingPostLayout) {
    this.tilingPostLayout();
  }

  this.isLayoutFinished = true;

  return isLayoutSuccessfull;
};

/**
 * This method performs the operations required after layout.
 */
Layout.prototype.doPostLayout = function () {
  //assert !isSubLayout : "Should not be called on sub-layout!";
  // Propagate geometric changes to v-level objects
  if (!this.incremental) {
    this.transform();
  }
  this.update();
};

/**
 * This method updates the geometry of the target graph according to
 * calculated layout.
 */
Layout.prototype.update2 = function () {
  // update bend points
  if (this.createBendsAsNeeded) {
    this.createBendpointsFromDummyNodes();

    // reset all edges, since the topology has changed
    this.graphManager.resetAllEdges();
  }

  // perform edge, node and root updates if layout is not called
  // remotely
  if (!this.isRemoteUse) {
    // update all edges
    var edge;
    var allEdges = this.graphManager.getAllEdges();
    for (var i = 0; i < allEdges.length; i++) {
      edge = allEdges[i];
      //      this.update(edge);
    }

    // recursively update nodes
    var node;
    var nodes = this.graphManager.getRoot().getNodes();
    for (var i = 0; i < nodes.length; i++) {
      node = nodes[i];
      //      this.update(node);
    }

    // update root graph
    this.update(this.graphManager.getRoot());
  }
};

Layout.prototype.update = function (obj) {
  if (obj == null) {
    this.update2();
  } else if (obj instanceof LNode) {
    var node = obj;
    if (node.getChild() != null) {
      // since node is compound, recursively update child nodes
      var nodes = node.getChild().getNodes();
      for (var i = 0; i < nodes.length; i++) {
        update(nodes[i]);
      }
    }

    // if the l-level node is associated with a v-level graph object,
    // then it is assumed that the v-level node implements the
    // interface Updatable.
    if (node.vGraphObject != null) {
      // cast to Updatable without any type check
      var vNode = node.vGraphObject;

      // call the update method of the interface
      vNode.update(node);
    }
  } else if (obj instanceof LEdge) {
    var edge = obj;
    // if the l-level edge is associated with a v-level graph object,
    // then it is assumed that the v-level edge implements the
    // interface Updatable.

    if (edge.vGraphObject != null) {
      // cast to Updatable without any type check
      var vEdge = edge.vGraphObject;

      // call the update method of the interface
      vEdge.update(edge);
    }
  } else if (obj instanceof LGraph) {
    var graph = obj;
    // if the l-level graph is associated with a v-level graph object,
    // then it is assumed that the v-level object implements the
    // interface Updatable.

    if (graph.vGraphObject != null) {
      // cast to Updatable without any type check
      var vGraph = graph.vGraphObject;

      // call the update method of the interface
      vGraph.update(graph);
    }
  }
};

/**
 * This method is used to set all layout parameters to default values
 * determined at compile time.
 */
Layout.prototype.initParameters = function () {
  if (!this.isSubLayout) {
    this.layoutQuality = LayoutConstants.QUALITY;
    this.animationDuringLayout = LayoutConstants.DEFAULT_ANIMATION_DURING_LAYOUT;
    this.animationPeriod = LayoutConstants.DEFAULT_ANIMATION_PERIOD;
    this.animationOnLayout = LayoutConstants.DEFAULT_ANIMATION_ON_LAYOUT;
    this.incremental = LayoutConstants.DEFAULT_INCREMENTAL;
    this.createBendsAsNeeded = LayoutConstants.DEFAULT_CREATE_BENDS_AS_NEEDED;
    this.uniformLeafNodeSizes = LayoutConstants.DEFAULT_UNIFORM_LEAF_NODE_SIZES;
  }

  if (this.animationDuringLayout) {
    this.animationOnLayout = false;
  }
};

Layout.prototype.transform = function (newLeftTop) {
  if (newLeftTop == undefined) {
    this.transform(new PointD(0, 0));
  } else {
    // create a transformation object (from Eclipse to layout). When an
    // inverse transform is applied, we get upper-left coordinate of the
    // drawing or the root graph at given input coordinate (some margins
    // already included in calculation of left-top).

    var trans = new Transform();
    var leftTop = this.graphManager.getRoot().updateLeftTop();

    if (leftTop != null) {
      trans.setWorldOrgX(newLeftTop.x);
      trans.setWorldOrgY(newLeftTop.y);

      trans.setDeviceOrgX(leftTop.x);
      trans.setDeviceOrgY(leftTop.y);

      var nodes = this.getAllNodes();
      var node;

      for (var i = 0; i < nodes.length; i++) {
        node = nodes[i];
        node.transform(trans);
      }
    }
  }
};

Layout.prototype.positionNodesRandomly = function (graph) {

  if (graph == undefined) {
    //assert !this.incremental;
    this.positionNodesRandomly(this.getGraphManager().getRoot());
    this.getGraphManager().getRoot().updateBounds(true);
  } else {
    var lNode;
    var childGraph;

    var nodes = graph.getNodes();
    for (var i = 0; i < nodes.length; i++) {
      lNode = nodes[i];
      childGraph = lNode.getChild();

      if (childGraph == null) {
        lNode.scatter();
      } else if (childGraph.getNodes().length == 0) {
        lNode.scatter();
      } else {
        this.positionNodesRandomly(childGraph);
        lNode.updateBounds();
      }
    }
  }
};

/**
 * This method returns a list of trees where each tree is represented as a
 * list of l-nodes. The method returns a list of size 0 when:
 * - The graph is not flat or
 * - One of the component(s) of the graph is not a tree.
 */
Layout.prototype.getFlatForest = function () {
  var flatForest = [];
  var isForest = true;

  // Quick reference for all nodes in the graph manager associated with
  // this layout. The list should not be changed.
  var allNodes = this.graphManager.getRoot().getNodes();

  // First be sure that the graph is flat
  var isFlat = true;

  for (var i = 0; i < allNodes.length; i++) {
    if (allNodes[i].getChild() != null) {
      isFlat = false;
    }
  }

  // Return empty forest if the graph is not flat.
  if (!isFlat) {
    return flatForest;
  }

  // Run BFS for each component of the graph.

  var visited = new Set();
  var toBeVisited = [];
  var parents = new Map();
  var unProcessedNodes = [];

  unProcessedNodes = unProcessedNodes.concat(allNodes);

  // Each iteration of this loop finds a component of the graph and
  // decides whether it is a tree or not. If it is a tree, adds it to the
  // forest and continued with the next component.

  while (unProcessedNodes.length > 0 && isForest) {
    toBeVisited.push(unProcessedNodes[0]);

    // Start the BFS. Each iteration of this loop visits a node in a
    // BFS manner.
    while (toBeVisited.length > 0 && isForest) {
      //pool operation
      var currentNode = toBeVisited[0];
      toBeVisited.splice(0, 1);
      visited.add(currentNode);

      // Traverse all neighbors of this node
      var neighborEdges = currentNode.getEdges();

      for (var i = 0; i < neighborEdges.length; i++) {
        var currentNeighbor = neighborEdges[i].getOtherEnd(currentNode);

        // If BFS is not growing from this neighbor.
        if (parents.get(currentNode) != currentNeighbor) {
          // We haven't previously visited this neighbor.
          if (!visited.has(currentNeighbor)) {
            toBeVisited.push(currentNeighbor);
            parents.set(currentNeighbor, currentNode);
          }
          // Since we have previously visited this neighbor and
          // this neighbor is not parent of currentNode, given
          // graph contains a component that is not tree, hence
          // it is not a forest.
          else {
              isForest = false;
              break;
            }
        }
      }
    }

    // The graph contains a component that is not a tree. Empty
    // previously found trees. The method will end.
    if (!isForest) {
      flatForest = [];
    }
    // Save currently visited nodes as a tree in our forest. Reset
    // visited and parents lists. Continue with the next component of
    // the graph, if any.
    else {
        var temp = [].concat(_toConsumableArray(visited));
        flatForest.push(temp);
        //flatForest = flatForest.concat(temp);
        //unProcessedNodes.removeAll(visited);
        for (var i = 0; i < temp.length; i++) {
          var value = temp[i];
          var index = unProcessedNodes.indexOf(value);
          if (index > -1) {
            unProcessedNodes.splice(index, 1);
          }
        }
        visited = new Set();
        parents = new Map();
      }
  }

  return flatForest;
};

/**
 * This method creates dummy nodes (an l-level node with minimal dimensions)
 * for the given edge (one per bendpoint). The existing l-level structure
 * is updated accordingly.
 */
Layout.prototype.createDummyNodesForBendpoints = function (edge) {
  var dummyNodes = [];
  var prev = edge.source;

  var graph = this.graphManager.calcLowestCommonAncestor(edge.source, edge.target);

  for (var i = 0; i < edge.bendpoints.length; i++) {
    // create new dummy node
    var dummyNode = this.newNode(null);
    dummyNode.setRect(new Point(0, 0), new Dimension(1, 1));

    graph.add(dummyNode);

    // create new dummy edge between prev and dummy node
    var dummyEdge = this.newEdge(null);
    this.graphManager.add(dummyEdge, prev, dummyNode);

    dummyNodes.add(dummyNode);
    prev = dummyNode;
  }

  var dummyEdge = this.newEdge(null);
  this.graphManager.add(dummyEdge, prev, edge.target);

  this.edgeToDummyNodes.set(edge, dummyNodes);

  // remove real edge from graph manager if it is inter-graph
  if (edge.isInterGraph()) {
    this.graphManager.remove(edge);
  }
  // else, remove the edge from the current graph
  else {
      graph.remove(edge);
    }

  return dummyNodes;
};

/**
 * This method creates bendpoints for edges from the dummy nodes
 * at l-level.
 */
Layout.prototype.createBendpointsFromDummyNodes = function () {
  var edges = [];
  edges = edges.concat(this.graphManager.getAllEdges());
  edges = [].concat(_toConsumableArray(this.edgeToDummyNodes.keys())).concat(edges);

  for (var k = 0; k < edges.length; k++) {
    var lEdge = edges[k];

    if (lEdge.bendpoints.length > 0) {
      var path = this.edgeToDummyNodes.get(lEdge);

      for (var i = 0; i < path.length; i++) {
        var dummyNode = path[i];
        var p = new PointD(dummyNode.getCenterX(), dummyNode.getCenterY());

        // update bendpoint's location according to dummy node
        var ebp = lEdge.bendpoints.get(i);
        ebp.x = p.x;
        ebp.y = p.y;

        // remove the dummy node, dummy edges incident with this
        // dummy node is also removed (within the remove method)
        dummyNode.getOwner().remove(dummyNode);
      }

      // add the real edge to graph
      this.graphManager.add(lEdge, lEdge.source, lEdge.target);
    }
  }
};

Layout.transform = function (sliderValue, defaultValue, minDiv, maxMul) {
  if (minDiv != undefined && maxMul != undefined) {
    var value = defaultValue;

    if (sliderValue <= 50) {
      var minValue = defaultValue / minDiv;
      value -= (defaultValue - minValue) / 50 * (50 - sliderValue);
    } else {
      var maxValue = defaultValue * maxMul;
      value += (maxValue - defaultValue) / 50 * (sliderValue - 50);
    }

    return value;
  } else {
    var a, b;

    if (sliderValue <= 50) {
      a = 9.0 * defaultValue / 500.0;
      b = defaultValue / 10.0;
    } else {
      a = 9.0 * defaultValue / 50.0;
      b = -8 * defaultValue;
    }

    return a * sliderValue + b;
  }
};

/**
 * This method finds and returns the center of the given nodes, assuming
 * that the given nodes form a tree in themselves.
 */
Layout.findCenterOfTree = function (nodes) {
  var list = [];
  list = list.concat(nodes);

  var removedNodes = [];
  var remainingDegrees = new Map();
  var foundCenter = false;
  var centerNode = null;

  if (list.length == 1 || list.length == 2) {
    foundCenter = true;
    centerNode = list[0];
  }

  for (var i = 0; i < list.length; i++) {
    var node = list[i];
    var degree = node.getNeighborsList().size;
    remainingDegrees.set(node, node.getNeighborsList().size);

    if (degree == 1) {
      removedNodes.push(node);
    }
  }

  var tempList = [];
  tempList = tempList.concat(removedNodes);

  while (!foundCenter) {
    var tempList2 = [];
    tempList2 = tempList2.concat(tempList);
    tempList = [];

    for (var i = 0; i < list.length; i++) {
      var node = list[i];

      var index = list.indexOf(node);
      if (index >= 0) {
        list.splice(index, 1);
      }

      var neighbours = node.getNeighborsList();

      neighbours.forEach(function (neighbour) {
        if (removedNodes.indexOf(neighbour) < 0) {
          var otherDegree = remainingDegrees.get(neighbour);
          var newDegree = otherDegree - 1;

          if (newDegree == 1) {
            tempList.push(neighbour);
          }

          remainingDegrees.set(neighbour, newDegree);
        }
      });
    }

    removedNodes = removedNodes.concat(tempList);

    if (list.length == 1 || list.length == 2) {
      foundCenter = true;
      centerNode = list[0];
    }
  }

  return centerNode;
};

/**
 * During the coarsening process, this layout may be referenced by two graph managers
 * this setter function grants access to change the currently being used graph manager
 */
Layout.prototype.setGraphManager = function (gm) {
  this.graphManager = gm;
};

module.exports = Layout;

/***/ }),
/* 16 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function RandomSeed() {}
// adapted from: https://stackoverflow.com/a/19303725
RandomSeed.seed = 1;
RandomSeed.x = 0;

RandomSeed.nextDouble = function () {
  RandomSeed.x = Math.sin(RandomSeed.seed++) * 10000;
  return RandomSeed.x - Math.floor(RandomSeed.x);
};

module.exports = RandomSeed;

/***/ }),
/* 17 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var PointD = __webpack_require__(4);

function Transform(x, y) {
  this.lworldOrgX = 0.0;
  this.lworldOrgY = 0.0;
  this.ldeviceOrgX = 0.0;
  this.ldeviceOrgY = 0.0;
  this.lworldExtX = 1.0;
  this.lworldExtY = 1.0;
  this.ldeviceExtX = 1.0;
  this.ldeviceExtY = 1.0;
}

Transform.prototype.getWorldOrgX = function () {
  return this.lworldOrgX;
};

Transform.prototype.setWorldOrgX = function (wox) {
  this.lworldOrgX = wox;
};

Transform.prototype.getWorldOrgY = function () {
  return this.lworldOrgY;
};

Transform.prototype.setWorldOrgY = function (woy) {
  this.lworldOrgY = woy;
};

Transform.prototype.getWorldExtX = function () {
  return this.lworldExtX;
};

Transform.prototype.setWorldExtX = function (wex) {
  this.lworldExtX = wex;
};

Transform.prototype.getWorldExtY = function () {
  return this.lworldExtY;
};

Transform.prototype.setWorldExtY = function (wey) {
  this.lworldExtY = wey;
};

/* Device related */

Transform.prototype.getDeviceOrgX = function () {
  return this.ldeviceOrgX;
};

Transform.prototype.setDeviceOrgX = function (dox) {
  this.ldeviceOrgX = dox;
};

Transform.prototype.getDeviceOrgY = function () {
  return this.ldeviceOrgY;
};

Transform.prototype.setDeviceOrgY = function (doy) {
  this.ldeviceOrgY = doy;
};

Transform.prototype.getDeviceExtX = function () {
  return this.ldeviceExtX;
};

Transform.prototype.setDeviceExtX = function (dex) {
  this.ldeviceExtX = dex;
};

Transform.prototype.getDeviceExtY = function () {
  return this.ldeviceExtY;
};

Transform.prototype.setDeviceExtY = function (dey) {
  this.ldeviceExtY = dey;
};

Transform.prototype.transformX = function (x) {
  var xDevice = 0.0;
  var worldExtX = this.lworldExtX;
  if (worldExtX != 0.0) {
    xDevice = this.ldeviceOrgX + (x - this.lworldOrgX) * this.ldeviceExtX / worldExtX;
  }

  return xDevice;
};

Transform.prototype.transformY = function (y) {
  var yDevice = 0.0;
  var worldExtY = this.lworldExtY;
  if (worldExtY != 0.0) {
    yDevice = this.ldeviceOrgY + (y - this.lworldOrgY) * this.ldeviceExtY / worldExtY;
  }

  return yDevice;
};

Transform.prototype.inverseTransformX = function (x) {
  var xWorld = 0.0;
  var deviceExtX = this.ldeviceExtX;
  if (deviceExtX != 0.0) {
    xWorld = this.lworldOrgX + (x - this.ldeviceOrgX) * this.lworldExtX / deviceExtX;
  }

  return xWorld;
};

Transform.prototype.inverseTransformY = function (y) {
  var yWorld = 0.0;
  var deviceExtY = this.ldeviceExtY;
  if (deviceExtY != 0.0) {
    yWorld = this.lworldOrgY + (y - this.ldeviceOrgY) * this.lworldExtY / deviceExtY;
  }
  return yWorld;
};

Transform.prototype.inverseTransformPoint = function (inPoint) {
  var outPoint = new PointD(this.inverseTransformX(inPoint.x), this.inverseTransformY(inPoint.y));
  return outPoint;
};

module.exports = Transform;

/***/ }),
/* 18 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

var Layout = __webpack_require__(15);
var FDLayoutConstants = __webpack_require__(7);
var LayoutConstants = __webpack_require__(0);
var IGeometry = __webpack_require__(8);
var IMath = __webpack_require__(9);

function FDLayout() {
  Layout.call(this);

  this.useSmartIdealEdgeLengthCalculation = FDLayoutConstants.DEFAULT_USE_SMART_IDEAL_EDGE_LENGTH_CALCULATION;
  this.idealEdgeLength = FDLayoutConstants.DEFAULT_EDGE_LENGTH;
  this.springConstant = FDLayoutConstants.DEFAULT_SPRING_STRENGTH;
  this.repulsionConstant = FDLayoutConstants.DEFAULT_REPULSION_STRENGTH;
  this.gravityConstant = FDLayoutConstants.DEFAULT_GRAVITY_STRENGTH;
  this.compoundGravityConstant = FDLayoutConstants.DEFAULT_COMPOUND_GRAVITY_STRENGTH;
  this.gravityRangeFactor = FDLayoutConstants.DEFAULT_GRAVITY_RANGE_FACTOR;
  this.compoundGravityRangeFactor = FDLayoutConstants.DEFAULT_COMPOUND_GRAVITY_RANGE_FACTOR;
  this.displacementThresholdPerNode = 3.0 * FDLayoutConstants.DEFAULT_EDGE_LENGTH / 100;
  this.coolingFactor = FDLayoutConstants.DEFAULT_COOLING_FACTOR_INCREMENTAL;
  this.initialCoolingFactor = FDLayoutConstants.DEFAULT_COOLING_FACTOR_INCREMENTAL;
  this.totalDisplacement = 0.0;
  this.oldTotalDisplacement = 0.0;
  this.maxIterations = FDLayoutConstants.MAX_ITERATIONS;
}

FDLayout.prototype = Object.create(Layout.prototype);

for (var prop in Layout) {
  FDLayout[prop] = Layout[prop];
}

FDLayout.prototype.initParameters = function () {
  Layout.prototype.initParameters.call(this, arguments);

  this.totalIterations = 0;
  this.notAnimatedIterations = 0;

  this.useFRGridVariant = FDLayoutConstants.DEFAULT_USE_SMART_REPULSION_RANGE_CALCULATION;

  this.grid = [];
};

FDLayout.prototype.calcIdealEdgeLengths = function () {
  var edge;
  var lcaDepth;
  var source;
  var target;
  var sizeOfSourceInLca;
  var sizeOfTargetInLca;

  var allEdges = this.getGraphManager().getAllEdges();
  for (var i = 0; i < allEdges.length; i++) {
    edge = allEdges[i];

    edge.idealLength = this.idealEdgeLength;

    if (edge.isInterGraph) {
      source = edge.getSource();
      target = edge.getTarget();

      sizeOfSourceInLca = edge.getSourceInLca().getEstimatedSize();
      sizeOfTargetInLca = edge.getTargetInLca().getEstimatedSize();

      if (this.useSmartIdealEdgeLengthCalculation) {
        edge.idealLength += sizeOfSourceInLca + sizeOfTargetInLca - 2 * LayoutConstants.SIMPLE_NODE_SIZE;
      }

      lcaDepth = edge.getLca().getInclusionTreeDepth();

      edge.idealLength += FDLayoutConstants.DEFAULT_EDGE_LENGTH * FDLayoutConstants.PER_LEVEL_IDEAL_EDGE_LENGTH_FACTOR * (source.getInclusionTreeDepth() + target.getInclusionTreeDepth() - 2 * lcaDepth);
    }
  }
};

FDLayout.prototype.initSpringEmbedder = function () {

  var s = this.getAllNodes().length;
  if (this.incremental) {
    if (s > FDLayoutConstants.ADAPTATION_LOWER_NODE_LIMIT) {
      this.coolingFactor = Math.max(this.coolingFactor * FDLayoutConstants.COOLING_ADAPTATION_FACTOR, this.coolingFactor - (s - FDLayoutConstants.ADAPTATION_LOWER_NODE_LIMIT) / (FDLayoutConstants.ADAPTATION_UPPER_NODE_LIMIT - FDLayoutConstants.ADAPTATION_LOWER_NODE_LIMIT) * this.coolingFactor * (1 - FDLayoutConstants.COOLING_ADAPTATION_FACTOR));
    }
    this.maxNodeDisplacement = FDLayoutConstants.MAX_NODE_DISPLACEMENT_INCREMENTAL;
  } else {
    if (s > FDLayoutConstants.ADAPTATION_LOWER_NODE_LIMIT) {
      this.coolingFactor = Math.max(FDLayoutConstants.COOLING_ADAPTATION_FACTOR, 1.0 - (s - FDLayoutConstants.ADAPTATION_LOWER_NODE_LIMIT) / (FDLayoutConstants.ADAPTATION_UPPER_NODE_LIMIT - FDLayoutConstants.ADAPTATION_LOWER_NODE_LIMIT) * (1 - FDLayoutConstants.COOLING_ADAPTATION_FACTOR));
    } else {
      this.coolingFactor = 1.0;
    }
    this.initialCoolingFactor = this.coolingFactor;
    this.maxNodeDisplacement = FDLayoutConstants.MAX_NODE_DISPLACEMENT;
  }

  this.maxIterations = Math.max(this.getAllNodes().length * 5, this.maxIterations);

  this.totalDisplacementThreshold = this.displacementThresholdPerNode * this.getAllNodes().length;

  this.repulsionRange = this.calcRepulsionRange();
};

FDLayout.prototype.calcSpringForces = function () {
  var lEdges = this.getAllEdges();
  var edge;

  for (var i = 0; i < lEdges.length; i++) {
    edge = lEdges[i];

    this.calcSpringForce(edge, edge.idealLength);
  }
};

FDLayout.prototype.calcRepulsionForces = function () {
  var gridUpdateAllowed = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
  var forceToNodeSurroundingUpdate = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

  var i, j;
  var nodeA, nodeB;
  var lNodes = this.getAllNodes();
  var processedNodeSet;

  if (this.useFRGridVariant) {
    if (this.totalIterations % FDLayoutConstants.GRID_CALCULATION_CHECK_PERIOD == 1 && gridUpdateAllowed) {
      this.updateGrid();
    }

    processedNodeSet = new Set();

    // calculate repulsion forces between each nodes and its surrounding
    for (i = 0; i < lNodes.length; i++) {
      nodeA = lNodes[i];
      this.calculateRepulsionForceOfANode(nodeA, processedNodeSet, gridUpdateAllowed, forceToNodeSurroundingUpdate);
      processedNodeSet.add(nodeA);
    }
  } else {
    for (i = 0; i < lNodes.length; i++) {
      nodeA = lNodes[i];

      for (j = i + 1; j < lNodes.length; j++) {
        nodeB = lNodes[j];

        // If both nodes are not members of the same graph, skip.
        if (nodeA.getOwner() != nodeB.getOwner()) {
          continue;
        }

        this.calcRepulsionForce(nodeA, nodeB);
      }
    }
  }
};

FDLayout.prototype.calcGravitationalForces = function () {
  var node;
  var lNodes = this.getAllNodesToApplyGravitation();

  for (var i = 0; i < lNodes.length; i++) {
    node = lNodes[i];
    this.calcGravitationalForce(node);
  }
};

FDLayout.prototype.moveNodes = function () {
  var lNodes = this.getAllNodes();
  var node;

  for (var i = 0; i < lNodes.length; i++) {
    node = lNodes[i];
    node.move();
  }
};

FDLayout.prototype.calcSpringForce = function (edge, idealLength) {
  var sourceNode = edge.getSource();
  var targetNode = edge.getTarget();

  var length;
  var springForce;
  var springForceX;
  var springForceY;

  // Update edge length
  if (this.uniformLeafNodeSizes && sourceNode.getChild() == null && targetNode.getChild() == null) {
    edge.updateLengthSimple();
  } else {
    edge.updateLength();

    if (edge.isOverlapingSourceAndTarget) {
      return;
    }
  }

  length = edge.getLength();

  if (length == 0) return;

  // Calculate spring forces
  springForce = this.springConstant * (length - idealLength);

  // Project force onto x and y axes
  springForceX = springForce * (edge.lengthX / length);
  springForceY = springForce * (edge.lengthY / length);

  // Apply forces on the end nodes
  sourceNode.springForceX += springForceX;
  sourceNode.springForceY += springForceY;
  targetNode.springForceX -= springForceX;
  targetNode.springForceY -= springForceY;
};

FDLayout.prototype.calcRepulsionForce = function (nodeA, nodeB) {
  var rectA = nodeA.getRect();
  var rectB = nodeB.getRect();
  var overlapAmount = new Array(2);
  var clipPoints = new Array(4);
  var distanceX;
  var distanceY;
  var distanceSquared;
  var distance;
  var repulsionForce;
  var repulsionForceX;
  var repulsionForceY;

  if (rectA.intersects(rectB)) // two nodes overlap
    {
      // calculate separation amount in x and y directions
      IGeometry.calcSeparationAmount(rectA, rectB, overlapAmount, FDLayoutConstants.DEFAULT_EDGE_LENGTH / 2.0);

      repulsionForceX = 2 * overlapAmount[0];
      repulsionForceY = 2 * overlapAmount[1];

      var childrenConstant = nodeA.noOfChildren * nodeB.noOfChildren / (nodeA.noOfChildren + nodeB.noOfChildren);

      // Apply forces on the two nodes
      nodeA.repulsionForceX -= childrenConstant * repulsionForceX;
      nodeA.repulsionForceY -= childrenConstant * repulsionForceY;
      nodeB.repulsionForceX += childrenConstant * repulsionForceX;
      nodeB.repulsionForceY += childrenConstant * repulsionForceY;
    } else // no overlap
    {
      // calculate distance

      if (this.uniformLeafNodeSizes && nodeA.getChild() == null && nodeB.getChild() == null) // simply base repulsion on distance of node centers
        {
          distanceX = rectB.getCenterX() - rectA.getCenterX();
          distanceY = rectB.getCenterY() - rectA.getCenterY();
        } else // use clipping points
        {
          IGeometry.getIntersection(rectA, rectB, clipPoints);

          distanceX = clipPoints[2] - clipPoints[0];
          distanceY = clipPoints[3] - clipPoints[1];
        }

      // No repulsion range. FR grid variant should take care of this.
      if (Math.abs(distanceX) < FDLayoutConstants.MIN_REPULSION_DIST) {
        distanceX = IMath.sign(distanceX) * FDLayoutConstants.MIN_REPULSION_DIST;
      }

      if (Math.abs(distanceY) < FDLayoutConstants.MIN_REPULSION_DIST) {
        distanceY = IMath.sign(distanceY) * FDLayoutConstants.MIN_REPULSION_DIST;
      }

      distanceSquared = distanceX * distanceX + distanceY * distanceY;
      distance = Math.sqrt(distanceSquared);

      repulsionForce = this.repulsionConstant * nodeA.noOfChildren * nodeB.noOfChildren / distanceSquared;

      // Project force onto x and y axes
      repulsionForceX = repulsionForce * distanceX / distance;
      repulsionForceY = repulsionForce * distanceY / distance;

      // Apply forces on the two nodes    
      nodeA.repulsionForceX -= repulsionForceX;
      nodeA.repulsionForceY -= repulsionForceY;
      nodeB.repulsionForceX += repulsionForceX;
      nodeB.repulsionForceY += repulsionForceY;
    }
};

FDLayout.prototype.calcGravitationalForce = function (node) {
  var ownerGraph;
  var ownerCenterX;
  var ownerCenterY;
  var distanceX;
  var distanceY;
  var absDistanceX;
  var absDistanceY;
  var estimatedSize;
  ownerGraph = node.getOwner();

  ownerCenterX = (ownerGraph.getRight() + ownerGraph.getLeft()) / 2;
  ownerCenterY = (ownerGraph.getTop() + ownerGraph.getBottom()) / 2;
  distanceX = node.getCenterX() - ownerCenterX;
  distanceY = node.getCenterY() - ownerCenterY;
  absDistanceX = Math.abs(distanceX) + node.getWidth() / 2;
  absDistanceY = Math.abs(distanceY) + node.getHeight() / 2;

  if (node.getOwner() == this.graphManager.getRoot()) // in the root graph
    {
      estimatedSize = ownerGraph.getEstimatedSize() * this.gravityRangeFactor;

      if (absDistanceX > estimatedSize || absDistanceY > estimatedSize) {
        node.gravitationForceX = -this.gravityConstant * distanceX;
        node.gravitationForceY = -this.gravityConstant * distanceY;
      }
    } else // inside a compound
    {
      estimatedSize = ownerGraph.getEstimatedSize() * this.compoundGravityRangeFactor;

      if (absDistanceX > estimatedSize || absDistanceY > estimatedSize) {
        node.gravitationForceX = -this.gravityConstant * distanceX * this.compoundGravityConstant;
        node.gravitationForceY = -this.gravityConstant * distanceY * this.compoundGravityConstant;
      }
    }
};

FDLayout.prototype.isConverged = function () {
  var converged;
  var oscilating = false;

  if (this.totalIterations > this.maxIterations / 3) {
    oscilating = Math.abs(this.totalDisplacement - this.oldTotalDisplacement) < 2;
  }

  converged = this.totalDisplacement < this.totalDisplacementThreshold;

  this.oldTotalDisplacement = this.totalDisplacement;

  return converged || oscilating;
};

FDLayout.prototype.animate = function () {
  if (this.animationDuringLayout && !this.isSubLayout) {
    if (this.notAnimatedIterations == this.animationPeriod) {
      this.update();
      this.notAnimatedIterations = 0;
    } else {
      this.notAnimatedIterations++;
    }
  }
};

//This method calculates the number of children (weight) for all nodes
FDLayout.prototype.calcNoOfChildrenForAllNodes = function () {
  var node;
  var allNodes = this.graphManager.getAllNodes();

  for (var i = 0; i < allNodes.length; i++) {
    node = allNodes[i];
    node.noOfChildren = node.getNoOfChildren();
  }
};

// -----------------------------------------------------------------------------
// Section: FR-Grid Variant Repulsion Force Calculation
// -----------------------------------------------------------------------------

FDLayout.prototype.calcGrid = function (graph) {

  var sizeX = 0;
  var sizeY = 0;

  sizeX = parseInt(Math.ceil((graph.getRight() - graph.getLeft()) / this.repulsionRange));
  sizeY = parseInt(Math.ceil((graph.getBottom() - graph.getTop()) / this.repulsionRange));

  var grid = new Array(sizeX);

  for (var i = 0; i < sizeX; i++) {
    grid[i] = new Array(sizeY);
  }

  for (var i = 0; i < sizeX; i++) {
    for (var j = 0; j < sizeY; j++) {
      grid[i][j] = new Array();
    }
  }

  return grid;
};

FDLayout.prototype.addNodeToGrid = function (v, left, top) {

  var startX = 0;
  var finishX = 0;
  var startY = 0;
  var finishY = 0;

  startX = parseInt(Math.floor((v.getRect().x - left) / this.repulsionRange));
  finishX = parseInt(Math.floor((v.getRect().width + v.getRect().x - left) / this.repulsionRange));
  startY = parseInt(Math.floor((v.getRect().y - top) / this.repulsionRange));
  finishY = parseInt(Math.floor((v.getRect().height + v.getRect().y - top) / this.repulsionRange));

  for (var i = startX; i <= finishX; i++) {
    for (var j = startY; j <= finishY; j++) {
      this.grid[i][j].push(v);
      v.setGridCoordinates(startX, finishX, startY, finishY);
    }
  }
};

FDLayout.prototype.updateGrid = function () {
  var i;
  var nodeA;
  var lNodes = this.getAllNodes();

  this.grid = this.calcGrid(this.graphManager.getRoot());

  // put all nodes to proper grid cells
  for (i = 0; i < lNodes.length; i++) {
    nodeA = lNodes[i];
    this.addNodeToGrid(nodeA, this.graphManager.getRoot().getLeft(), this.graphManager.getRoot().getTop());
  }
};

FDLayout.prototype.calculateRepulsionForceOfANode = function (nodeA, processedNodeSet, gridUpdateAllowed, forceToNodeSurroundingUpdate) {

  if (this.totalIterations % FDLayoutConstants.GRID_CALCULATION_CHECK_PERIOD == 1 && gridUpdateAllowed || forceToNodeSurroundingUpdate) {
    var surrounding = new Set();
    nodeA.surrounding = new Array();
    var nodeB;
    var grid = this.grid;

    for (var i = nodeA.startX - 1; i < nodeA.finishX + 2; i++) {
      for (var j = nodeA.startY - 1; j < nodeA.finishY + 2; j++) {
        if (!(i < 0 || j < 0 || i >= grid.length || j >= grid[0].length)) {
          for (var k = 0; k < grid[i][j].length; k++) {
            nodeB = grid[i][j][k];

            // If both nodes are not members of the same graph, 
            // or both nodes are the same, skip.
            if (nodeA.getOwner() != nodeB.getOwner() || nodeA == nodeB) {
              continue;
            }

            // check if the repulsion force between
            // nodeA and nodeB has already been calculated
            if (!processedNodeSet.has(nodeB) && !surrounding.has(nodeB)) {
              var distanceX = Math.abs(nodeA.getCenterX() - nodeB.getCenterX()) - (nodeA.getWidth() / 2 + nodeB.getWidth() / 2);
              var distanceY = Math.abs(nodeA.getCenterY() - nodeB.getCenterY()) - (nodeA.getHeight() / 2 + nodeB.getHeight() / 2);

              // if the distance between nodeA and nodeB 
              // is less then calculation range
              if (distanceX <= this.repulsionRange && distanceY <= this.repulsionRange) {
                //then add nodeB to surrounding of nodeA
                surrounding.add(nodeB);
              }
            }
          }
        }
      }
    }

    nodeA.surrounding = [].concat(_toConsumableArray(surrounding));
  }
  for (i = 0; i < nodeA.surrounding.length; i++) {
    this.calcRepulsionForce(nodeA, nodeA.surrounding[i]);
  }
};

FDLayout.prototype.calcRepulsionRange = function () {
  return 0.0;
};

module.exports = FDLayout;

/***/ }),
/* 19 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var LEdge = __webpack_require__(1);
var FDLayoutConstants = __webpack_require__(7);

function FDLayoutEdge(source, target, vEdge) {
  LEdge.call(this, source, target, vEdge);
  this.idealLength = FDLayoutConstants.DEFAULT_EDGE_LENGTH;
}

FDLayoutEdge.prototype = Object.create(LEdge.prototype);

for (var prop in LEdge) {
  FDLayoutEdge[prop] = LEdge[prop];
}

module.exports = FDLayoutEdge;

/***/ }),
/* 20 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var LNode = __webpack_require__(3);

function FDLayoutNode(gm, loc, size, vNode) {
  // alternative constructor is handled inside LNode
  LNode.call(this, gm, loc, size, vNode);
  //Spring, repulsion and gravitational forces acting on this node
  this.springForceX = 0;
  this.springForceY = 0;
  this.repulsionForceX = 0;
  this.repulsionForceY = 0;
  this.gravitationForceX = 0;
  this.gravitationForceY = 0;
  //Amount by which this node is to be moved in this iteration
  this.displacementX = 0;
  this.displacementY = 0;

  //Start and finish grid coordinates that this node is fallen into
  this.startX = 0;
  this.finishX = 0;
  this.startY = 0;
  this.finishY = 0;

  //Geometric neighbors of this node
  this.surrounding = [];
}

FDLayoutNode.prototype = Object.create(LNode.prototype);

for (var prop in LNode) {
  FDLayoutNode[prop] = LNode[prop];
}

FDLayoutNode.prototype.setGridCoordinates = function (_startX, _finishX, _startY, _finishY) {
  this.startX = _startX;
  this.finishX = _finishX;
  this.startY = _startY;
  this.finishY = _finishY;
};

module.exports = FDLayoutNode;

/***/ }),
/* 21 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function DimensionD(width, height) {
  this.width = 0;
  this.height = 0;
  if (width !== null && height !== null) {
    this.height = height;
    this.width = width;
  }
}

DimensionD.prototype.getWidth = function () {
  return this.width;
};

DimensionD.prototype.setWidth = function (width) {
  this.width = width;
};

DimensionD.prototype.getHeight = function () {
  return this.height;
};

DimensionD.prototype.setHeight = function (height) {
  this.height = height;
};

module.exports = DimensionD;

/***/ }),
/* 22 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var UniqueIDGeneretor = __webpack_require__(14);

function HashMap() {
  this.map = {};
  this.keys = [];
}

HashMap.prototype.put = function (key, value) {
  var theId = UniqueIDGeneretor.createID(key);
  if (!this.contains(theId)) {
    this.map[theId] = value;
    this.keys.push(key);
  }
};

HashMap.prototype.contains = function (key) {
  var theId = UniqueIDGeneretor.createID(key);
  return this.map[key] != null;
};

HashMap.prototype.get = function (key) {
  var theId = UniqueIDGeneretor.createID(key);
  return this.map[theId];
};

HashMap.prototype.keySet = function () {
  return this.keys;
};

module.exports = HashMap;

/***/ }),
/* 23 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var UniqueIDGeneretor = __webpack_require__(14);

function HashSet() {
  this.set = {};
}
;

HashSet.prototype.add = function (obj) {
  var theId = UniqueIDGeneretor.createID(obj);
  if (!this.contains(theId)) this.set[theId] = obj;
};

HashSet.prototype.remove = function (obj) {
  delete this.set[UniqueIDGeneretor.createID(obj)];
};

HashSet.prototype.clear = function () {
  this.set = {};
};

HashSet.prototype.contains = function (obj) {
  return this.set[UniqueIDGeneretor.createID(obj)] == obj;
};

HashSet.prototype.isEmpty = function () {
  return this.size() === 0;
};

HashSet.prototype.size = function () {
  return Object.keys(this.set).length;
};

//concats this.set to the given list
HashSet.prototype.addAllTo = function (list) {
  var keys = Object.keys(this.set);
  var length = keys.length;
  for (var i = 0; i < length; i++) {
    list.push(this.set[keys[i]]);
  }
};

HashSet.prototype.size = function () {
  return Object.keys(this.set).length;
};

HashSet.prototype.addAll = function (list) {
  var s = list.length;
  for (var i = 0; i < s; i++) {
    var v = list[i];
    this.add(v);
  }
};

module.exports = HashSet;

/***/ }),
/* 24 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _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; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * A classic Quicksort algorithm with Hoare's partition
 * - Works also on LinkedList objects
 *
 * Copyright: i-Vis Research Group, Bilkent University, 2007 - present
 */

var LinkedList = __webpack_require__(11);

var Quicksort = function () {
    function Quicksort(A, compareFunction) {
        _classCallCheck(this, Quicksort);

        if (compareFunction !== null || compareFunction !== undefined) this.compareFunction = this._defaultCompareFunction;

        var length = void 0;
        if (A instanceof LinkedList) length = A.size();else length = A.length;

        this._quicksort(A, 0, length - 1);
    }

    _createClass(Quicksort, [{
        key: '_quicksort',
        value: function _quicksort(A, p, r) {
            if (p < r) {
                var q = this._partition(A, p, r);
                this._quicksort(A, p, q);
                this._quicksort(A, q + 1, r);
            }
        }
    }, {
        key: '_partition',
        value: function _partition(A, p, r) {
            var x = this._get(A, p);
            var i = p;
            var j = r;
            while (true) {
                while (this.compareFunction(x, this._get(A, j))) {
                    j--;
                }while (this.compareFunction(this._get(A, i), x)) {
                    i++;
                }if (i < j) {
                    this._swap(A, i, j);
                    i++;
                    j--;
                } else return j;
            }
        }
    }, {
        key: '_get',
        value: function _get(object, index) {
            if (object instanceof LinkedList) return object.get_object_at(index);else return object[index];
        }
    }, {
        key: '_set',
        value: function _set(object, index, value) {
            if (object instanceof LinkedList) object.set_object_at(index, value);else object[index] = value;
        }
    }, {
        key: '_swap',
        value: function _swap(A, i, j) {
            var temp = this._get(A, i);
            this._set(A, i, this._get(A, j));
            this._set(A, j, temp);
        }
    }, {
        key: '_defaultCompareFunction',
        value: function _defaultCompareFunction(a, b) {
            return b > a;
        }
    }]);

    return Quicksort;
}();

module.exports = Quicksort;

/***/ }),
/* 25 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _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; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 *   Needleman-Wunsch algorithm is an procedure to compute the optimal global alignment of two string
 *   sequences by S.B.Needleman and C.D.Wunsch (1970).
 *
 *   Aside from the inputs, you can assign the scores for,
 *   - Match: The two characters at the current index are same.
 *   - Mismatch: The two characters at the current index are different.
 *   - Insertion/Deletion(gaps): The best alignment involves one letter aligning to a gap in the other string.
 */

var NeedlemanWunsch = function () {
    function NeedlemanWunsch(sequence1, sequence2) {
        var match_score = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
        var mismatch_penalty = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : -1;
        var gap_penalty = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : -1;

        _classCallCheck(this, NeedlemanWunsch);

        this.sequence1 = sequence1;
        this.sequence2 = sequence2;
        this.match_score = match_score;
        this.mismatch_penalty = mismatch_penalty;
        this.gap_penalty = gap_penalty;

        // Just the remove redundancy
        this.iMax = sequence1.length + 1;
        this.jMax = sequence2.length + 1;

        // Grid matrix of scores
        this.grid = new Array(this.iMax);
        for (var i = 0; i < this.iMax; i++) {
            this.grid[i] = new Array(this.jMax);

            for (var j = 0; j < this.jMax; j++) {
                this.grid[i][j] = 0;
            }
        }

        // Traceback matrix (2D array, each cell is an array of boolean values for [`Diag`, `Up`, `Left`] positions)
        this.tracebackGrid = new Array(this.iMax);
        for (var _i = 0; _i < this.iMax; _i++) {
            this.tracebackGrid[_i] = new Array(this.jMax);

            for (var _j = 0; _j < this.jMax; _j++) {
                this.tracebackGrid[_i][_j] = [null, null, null];
            }
        }

        // The aligned sequences (return multiple possibilities)
        this.alignments = [];

        // Final alignment score
        this.score = -1;

        // Calculate scores and tracebacks
        this.computeGrids();
    }

    _createClass(NeedlemanWunsch, [{
        key: "getScore",
        value: function getScore() {
            return this.score;
        }
    }, {
        key: "getAlignments",
        value: function getAlignments() {
            return this.alignments;
        }

        // Main dynamic programming procedure

    }, {
        key: "computeGrids",
        value: function computeGrids() {
            // Fill in the first row
            for (var j = 1; j < this.jMax; j++) {
                this.grid[0][j] = this.grid[0][j - 1] + this.gap_penalty;
                this.tracebackGrid[0][j] = [false, false, true];
            }

            // Fill in the first column
            for (var i = 1; i < this.iMax; i++) {
                this.grid[i][0] = this.grid[i - 1][0] + this.gap_penalty;
                this.tracebackGrid[i][0] = [false, true, false];
            }

            // Fill the rest of the grid
            for (var _i2 = 1; _i2 < this.iMax; _i2++) {
                for (var _j2 = 1; _j2 < this.jMax; _j2++) {
                    // Find the max score(s) among [`Diag`, `Up`, `Left`]
                    var diag = void 0;
                    if (this.sequence1[_i2 - 1] === this.sequence2[_j2 - 1]) diag = this.grid[_i2 - 1][_j2 - 1] + this.match_score;else diag = this.grid[_i2 - 1][_j2 - 1] + this.mismatch_penalty;

                    var up = this.grid[_i2 - 1][_j2] + this.gap_penalty;
                    var left = this.grid[_i2][_j2 - 1] + this.gap_penalty;

                    // If there exists multiple max values, capture them for multiple paths
                    var maxOf = [diag, up, left];
                    var indices = this.arrayAllMaxIndexes(maxOf);

                    // Update Grids
                    this.grid[_i2][_j2] = maxOf[indices[0]];
                    this.tracebackGrid[_i2][_j2] = [indices.includes(0), indices.includes(1), indices.includes(2)];
                }
            }

            // Update alignment score
            this.score = this.grid[this.iMax - 1][this.jMax - 1];
        }

        // Gets all possible valid sequence combinations

    }, {
        key: "alignmentTraceback",
        value: function alignmentTraceback() {
            var inProcessAlignments = [];

            inProcessAlignments.push({ pos: [this.sequence1.length, this.sequence2.length],
                seq1: "",
                seq2: ""
            });

            while (inProcessAlignments[0]) {
                var current = inProcessAlignments[0];
                var directions = this.tracebackGrid[current.pos[0]][current.pos[1]];

                if (directions[0]) {
                    inProcessAlignments.push({ pos: [current.pos[0] - 1, current.pos[1] - 1],
                        seq1: this.sequence1[current.pos[0] - 1] + current.seq1,
                        seq2: this.sequence2[current.pos[1] - 1] + current.seq2
                    });
                }
                if (directions[1]) {
                    inProcessAlignments.push({ pos: [current.pos[0] - 1, current.pos[1]],
                        seq1: this.sequence1[current.pos[0] - 1] + current.seq1,
                        seq2: '-' + current.seq2
                    });
                }
                if (directions[2]) {
                    inProcessAlignments.push({ pos: [current.pos[0], current.pos[1] - 1],
                        seq1: '-' + current.seq1,
                        seq2: this.sequence2[current.pos[1] - 1] + current.seq2
                    });
                }

                if (current.pos[0] === 0 && current.pos[1] === 0) this.alignments.push({ sequence1: current.seq1,
                    sequence2: current.seq2
                });

                inProcessAlignments.shift();
            }

            return this.alignments;
        }

        // Helper Functions

    }, {
        key: "getAllIndexes",
        value: function getAllIndexes(arr, val) {
            var indexes = [],
                i = -1;
            while ((i = arr.indexOf(val, i + 1)) !== -1) {
                indexes.push(i);
            }
            return indexes;
        }
    }, {
        key: "arrayAllMaxIndexes",
        value: function arrayAllMaxIndexes(array) {
            return this.getAllIndexes(array, Math.max.apply(null, array));
        }
    }]);

    return NeedlemanWunsch;
}();

module.exports = NeedlemanWunsch;

/***/ }),
/* 26 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var layoutBase = function layoutBase() {
  return;
};

layoutBase.FDLayout = __webpack_require__(18);
layoutBase.FDLayoutConstants = __webpack_require__(7);
layoutBase.FDLayoutEdge = __webpack_require__(19);
layoutBase.FDLayoutNode = __webpack_require__(20);
layoutBase.DimensionD = __webpack_require__(21);
layoutBase.HashMap = __webpack_require__(22);
layoutBase.HashSet = __webpack_require__(23);
layoutBase.IGeometry = __webpack_require__(8);
layoutBase.IMath = __webpack_require__(9);
layoutBase.Integer = __webpack_require__(10);
layoutBase.Point = __webpack_require__(12);
layoutBase.PointD = __webpack_require__(4);
layoutBase.RandomSeed = __webpack_require__(16);
layoutBase.RectangleD = __webpack_require__(13);
layoutBase.Transform = __webpack_require__(17);
layoutBase.UniqueIDGeneretor = __webpack_require__(14);
layoutBase.Quicksort = __webpack_require__(24);
layoutBase.LinkedList = __webpack_require__(11);
layoutBase.LGraphObject = __webpack_require__(2);
layoutBase.LGraph = __webpack_require__(5);
layoutBase.LEdge = __webpack_require__(1);
layoutBase.LGraphManager = __webpack_require__(6);
layoutBase.LNode = __webpack_require__(3);
layoutBase.Layout = __webpack_require__(15);
layoutBase.LayoutConstants = __webpack_require__(0);
layoutBase.NeedlemanWunsch = __webpack_require__(25);

module.exports = layoutBase;

/***/ }),
/* 27 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function Emitter() {
  this.listeners = [];
}

var p = Emitter.prototype;

p.addListener = function (event, callback) {
  this.listeners.push({
    event: event,
    callback: callback
  });
};

p.removeListener = function (event, callback) {
  for (var i = this.listeners.length; i >= 0; i--) {
    var l = this.listeners[i];

    if (l.event === event && l.callback === callback) {
      this.listeners.splice(i, 1);
    }
  }
};

p.emit = function (event, data) {
  for (var i = 0; i < this.listeners.length; i++) {
    var l = this.listeners[i];

    if (event === l.event) {
      l.callback(data);
    }
  }
};

module.exports = Emitter;

/***/ })
/******/ ]);
});