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diff --git a/src/js/layout/mxCircleLayout.js b/src/js/layout/mxCircleLayout.js
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index e3e6ec1..0000000
--- a/src/js/layout/mxCircleLayout.js
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-/**
- * $Id: mxCircleLayout.js,v 1.25 2012-08-22 17:26:12 gaudenz Exp $
- * Copyright (c) 2006-2010, JGraph Ltd
- */
-/**
- * Class: mxCircleLayout
- * 
- * Extends <mxGraphLayout> to implement a circluar layout for a given radius.
- * The vertices do not need to be connected for this layout to work and all
- * connections between vertices are not taken into account.
- * 
- * Example:
- * 
- * (code)
- * var layout = new mxCircleLayout(graph);
- * layout.execute(graph.getDefaultParent());
- * (end)
- * 
- * Constructor: mxCircleLayout
- *
- * Constructs a new circular layout for the specified radius.
- *
- * Arguments:
- * 
- * graph - <mxGraph> that contains the cells.
- * radius - Optional radius as an int. Default is 100.
- */
-function mxCircleLayout(graph, radius)
-{
-	mxGraphLayout.call(this, graph);
-	this.radius = (radius != null) ? radius : 100;
-};
-
-/**
- * Extends mxGraphLayout.
- */
-mxCircleLayout.prototype = new mxGraphLayout();
-mxCircleLayout.prototype.constructor = mxCircleLayout;
-
-/**
- * Variable: radius
- * 
- * Integer specifying the size of the radius. Default is 100.
- */
-mxCircleLayout.prototype.radius = null;
-
-/**
- * Variable: moveCircle
- * 
- * Boolean specifying if the circle should be moved to the top,
- * left corner specified by <x0> and <y0>. Default is false.
- */
-mxCircleLayout.prototype.moveCircle = false;
-
-/**
- * Variable: x0
- * 
- * Integer specifying the left coordinate of the circle.
- * Default is 0.
- */
-mxCircleLayout.prototype.x0 = 0;
-
-/**
- * Variable: y0
- * 
- * Integer specifying the top coordinate of the circle.
- * Default is 0.
- */
-mxCircleLayout.prototype.y0 = 0;
-
-/**
- * Variable: resetEdges
- * 
- * Specifies if all edge points of traversed edges should be removed.
- * Default is true.
- */
-mxCircleLayout.prototype.resetEdges = true;
-
-/**
- * Variable: disableEdgeStyle
- * 
- * Specifies if the STYLE_NOEDGESTYLE flag should be set on edges that are
- * modified by the result. Default is true.
- */
-mxCircleLayout.prototype.disableEdgeStyle = true;
-
-/**
- * Function: execute
- * 
- * Implements <mxGraphLayout.execute>.
- */
-mxCircleLayout.prototype.execute = function(parent)
-{
-	var model = this.graph.getModel();
-
-	// Moves the vertices to build a circle. Makes sure the
-	// radius is large enough for the vertices to not
-	// overlap
-	model.beginUpdate();
-	try
-	{
-		// Gets all vertices inside the parent and finds
-		// the maximum dimension of the largest vertex
-		var max = 0;
-		var top = null;
-		var left = null;
-		var vertices = [];
-		var childCount = model.getChildCount(parent);
-		
-		for (var i = 0; i < childCount; i++)
-		{
-			var cell = model.getChildAt(parent, i);
-			
-			if (!this.isVertexIgnored(cell))
-			{
-				vertices.push(cell);
-				var bounds = this.getVertexBounds(cell);
-				
-				if (top == null)
-				{
-					top = bounds.y;
-				}
-				else
-				{
-					top = Math.min(top, bounds.y);
-				}
-				
-				if (left == null)
-				{
-					left = bounds.x;
-				}
-				else
-				{
-					left = Math.min(left, bounds.x);
-				}
-				
-				max = Math.max(max, Math.max(bounds.width, bounds.height));
-			}
-			else if (!this.isEdgeIgnored(cell))
-			{
-				// Resets the points on the traversed edge
-				if (this.resetEdges)
-				{
-					this.graph.resetEdge(cell);
-				}
-
-			    if (this.disableEdgeStyle)
-			    {
-			    	this.setEdgeStyleEnabled(cell, false);
-			    }
-			}
-		}
-		
-		var r = this.getRadius(vertices.length, max);
-
-		// Moves the circle to the specified origin
-		if (this.moveCircle)
-		{
-			left = this.x0;
-			top = this.y0;
-		}
-		
-		this.circle(vertices, r, left, top);
-	}
-	finally
-	{
-		model.endUpdate();
-	}
-};
-
-/**
- * Function: getRadius
- * 
- * Returns the radius to be used for the given vertex count. Max is the maximum
- * width or height of all vertices in the layout.
- */
-mxCircleLayout.prototype.getRadius = function(count, max)
-{
-	return Math.max(count * max / Math.PI, this.radius);
-};
-
-/**
- * Function: circle
- * 
- * Executes the circular layout for the specified array
- * of vertices and the given radius. This is called from
- * <execute>.
- */
-mxCircleLayout.prototype.circle = function(vertices, r, left, top)
-{
-	var vertexCount = vertices.length;
-	var phi = 2 * Math.PI / vertexCount;
-	
-	for (var i = 0; i < vertexCount; i++)
-	{
-		if (this.isVertexMovable(vertices[i]))
-		{
-			this.setVertexLocation(vertices[i],
-				left + r + r * Math.sin(i*phi),
-				top + r + r * Math.cos(i*phi));
-		}
-	}
-};