text: // version: 2016-10-09
      /**
      * o--------------------------------------------------------------------------------o
      * | This file is part of the RGraph package - you can learn more at:               |
      * |                                                                                |
      * |                          http://www.rgraph.net                                 |
      * |                                                                                |
      * | RGraph is licensed under the Open Source MIT license. That means that it's     |
      * | totally free to use!                                                           |
      * o--------------------------------------------------------------------------------o
      */
  
      RGraph = window.RGraph || {isRGraph: true};
  
      /**
      * The bi-polar/age frequency constructor.
      * 
      * @param string id The id of the canvas
      * @param array  left  The left set of data points
      * @param array  right The right set of data points
      * 
      * REMEMBER If ymin is implemented you need to update the .getValue() method
      */
      RGraph.Bipolar = function (conf)
      {
          /**
          * Allow for object config style
          */
          if (   typeof conf === 'object'
              && typeof conf.left === 'object'
              && typeof conf.right === 'object'
              && typeof conf.id === 'string') {
  
              var id                        = conf.id,
                  canvas                    = document.getElementById(id),
                  left                      = conf.left,
                  right                     = conf.right,
                  parseConfObjectForOptions = true // Set this so the config is parsed (at the end of the constructor)
          
          } else {
          
              var id     = conf,
                  canvas = document.getElementById(id),
                  left   = arguments[1],
                  right  = arguments[2]
          }
  
  
  
          // Get the canvas and context objects
          this.id                = id;
          this.canvas            = canvas;
          this.context           = this.canvas.getContext('2d');
          this.canvas.__object__ = this;
          this.type              = 'bipolar';
          this.coords            = [];
          this.coordsLeft        = [];
          this.coordsRight       = [];
          this.max               = 0;
          this.isRGraph          = true;
          this.uid               = RGraph.CreateUID();
          this.canvas.uid        = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
          this.coordsText        = [];
          this.original_colors   = [];
          this.firstDraw         = true; // After the first draw this will be false
  
  
          /**
          * Compatibility with older browsers
          */
          //RGraph.OldBrowserCompat(this.context);
  
          
          // The left and right data respectively. Ensure that the data is an array
          // of numbers
          for (var i=0; i<left.length; ++i)  left[i]  = parseFloat(left[i]);
          for (var i=0; i<right.length; ++i) right[i] = parseFloat(right[i]);
  
          this.left  = left;
          this.right = right;
          this.data  = [left, right];
  
          this.properties =
          {
              'chart.background.grid':        true,
              'chart.background.grid.color':  '#ddd',
              'chart.background.grid.vlines': true,
              'chart.background.grid.hlines': true,
              'chart.background.grid.linewidth': 1,
              'chart.background.grid.autofit.numvlines': null,
              'chart.background.grid.autofit.numhlines': null,
              'chart.margin':                 2,
              'chart.xtickinterval':          null,
              'chart.labels':                 [],
              'chart.labels.color':           null,
              'chart.labels.above':           false,
              'chart.text.size':              12,
              'chart.text.color':             'black', // (Simple) gradients are not supported
              'chart.text.font':              'Segoe UI, Arial, Verdana, sans-serif',
              'chart.text.accessible':               true,
              'chart.text.accessible.overflow':      'visible',
              'chart.text.accessible.pointerevents': true,
              'chart.title.left':             '',
              'chart.title.right':            '',
              'chart.gutter.center':          60,
              'chart.gutter.left':            25,
              'chart.gutter.right':           25,
              'chart.gutter.top':             25,
              'chart.gutter.bottom':          30,
              'chart.title':                  '',
              'chart.title.background':       null,
              'chart.title.hpos':             null,
              'chart.title.vpos':             null,
              'chart.title.bold':             true,
              'chart.title.font':             null,
              'chart.title.x':                null,
              'chart.title.y':                null,
              'chart.title.halign':           null,
              'chart.title.valign':           null,
              'chart.colors':                 ['#0f0'],
              'chart.colors.sequential':      false,
              'chart.contextmenu':            null,
              'chart.tooltips':               null,
              'chart.tooltips.effect':         'fade',
              'chart.tooltips.css.class':      'RGraph_tooltip',
              'chart.tooltips.highlight':     true,
              'chart.tooltips.event':         'onclick',
              'chart.highlight.stroke':       'rgba(0,0,0,0)',
              'chart.highlight.fill':         'rgba(255,255,255,0.7)',
              'chart.units.pre':              '',
              'chart.units.post':             '',
              'chart.shadow':                 false,
              'chart.shadow.color':           '#666',
              'chart.shadow.offsetx':         3,
              'chart.shadow.offsety':         3,
              'chart.shadow.blur':            3,
              'chart.annotatable':            false,
              'chart.annotate.color':         'black',
              'chart.xmax':                   null,
              'chart.xmin':                   0,
              'chart.scale.zerostart':        true,
              'chart.scale.decimals':         null,
              'chart.scale.point':            '.',
              'chart.scale.thousand':         ',',
              'chart.axis.color':             'black',
              'chart.zoom.factor':            1.5,
              'chart.zoom.fade.in':           true,
              'chart.zoom.fade.out':          true,
              'chart.zoom.hdir':              'right',
              'chart.zoom.vdir':              'down',
              'chart.zoom.frames':            25,
              'chart.zoom.delay':             16.666,
              'chart.zoom.shadow':            true,
              'chart.zoom.background':        true,
              'chart.zoom.action':            'zoom',
              'chart.resizable':              false,
              'chart.resize.handle.background': null,
              'chart.strokestyle':            'rgba(0,0,0,0)',
              'chart.events.mousemove':       null,
              'chart.events.click':           null,
              'chart.linewidth':              1,
              'chart.noaxes':                 false,
              'chart.xlabels':                true,
              'chart.numyticks':              null,
              'chart.numxticks':              5,
              'chart.axis.linewidth':         1,
              'chart.labels.count':           5,
              'chart.variant.threed.offsetx': 10,
              'chart.variant.threed.offsety': 5,
              'chart.variant.threed.angle':   0.1,
              'chart.clearto':   'rgba(0,0,0,0)'
          }
  
          // Pad the arrays so they're the same size
          while (this.left.length < this.right.length) this.left.push(null);
          while (this.left.length > this.right.length) this.right.push(null);
          
          /**
          * Set the default for the number of Y tickmarks
          */
          this.properties['chart.numyticks'] = this.left.length;
  
          
  
  
          /**
          * Create the dollar objects so that functions can be added to them
          */
          var linear_data = RGraph.arrayLinearize(this.left, this.right);
  
          for (var i=0; i<linear_data.length; ++i) {
              this['$' + i] = {};
          }
  
  
          /**
          * Translate half a pixel for antialiasing purposes - but only if it hasn't beeen
          * done already
          */
          if (!this.canvas.__rgraph_aa_translated__) {
              this.context.translate(0.5,0.5);
              
              this.canvas.__rgraph_aa_translated__ = true;
          }
  
  
  
  
          // Short variable names
          var RG   = RGraph,
              ca   = this.canvas,
              co   = ca.getContext('2d'),
              prop = this.properties,
              pa2  = RG.path2,
              win  = window,
              doc  = document,
              ma   = Math
          
          
          
          /**
          * "Decorate" the object with the generic effects if the effects library has been included
          */
          if (RG.Effects && typeof RG.Effects.decorate === 'function') {
              RG.Effects.decorate(this);
          }
  
  
  
  
  
  
  
          /**
          * The setter
          * 
          * @param name  string The name of the parameter to set
          * @param value mixed  The value of the paraneter 
          */
          this.set =
          this.Set = function (name)
          {
              var value = typeof arguments[1] === 'undefined' ? null : arguments[1];
  
  
              /**
              * the number of arguments is only one and it's an
              * object - parse it for configuration data and return.
              */
              if (arguments.length === 1 && typeof name === 'object') {
                  RG.parseObjectStyleConfig(this, name);
                  return this;
              }
  
  
  
  
      
              /**
              * This should be done first - prepend the propertyy name with "chart." if necessary
              */
              if (name.substr(0,6) != 'chart.') {
                  name = 'chart.' + name;
              }
  
  
  
  
              // Convert uppercase letters to dot+lower case letter
              while(name.match(/([A-Z])/)) {
                  name = name.replace(/([A-Z])/, '.' + RegExp.$1.toLowerCase());
              }
  
  
  
  
  
      
              prop[name] = value;
      
              return this;
          };
  
  
  
  
          /**
          * The getter
          * 
          * @param name string The name of the parameter to get
          */
          this.get =
          this.Get = function (name)
          {
              /**
              * This should be done first - prepend the property name with "chart." if necessary
              */
              if (name.substr(0,6) != 'chart.') {
                  name = 'chart.' + name;
              }
  
              // Convert uppercase letters to dot+lower case letter
              while(name.match(/([A-Z])/)) {
                  name = name.replace(/([A-Z])/, '.' + RegExp.$1.toLowerCase());
              }
      
              return this.properties[name.toLowerCase()];
          };
  
  
  
  
          /**
          * Draws the graph
          */
          this.draw =
          this.Draw = function ()
          {
              /**
              * Fire the onbeforedraw event
              */
              RG.FireCustomEvent(this, 'onbeforedraw');
      
      
              /**
              * Parse the colors. This allows for simple gradient syntax
              */
              if (!this.colorsParsed) {
                  this.parseColors();
                  
                  // Don't want to do this again
                  this.colorsParsed = true;
              }
      
      
              /**
              * This is new in May 2011 and facilitates indiviual gutter settings,
              * eg chart.gutter.left
              */
              this.gutterLeft   = prop['chart.gutter.left'];
              this.gutterRight  = prop['chart.gutter.right'];
              this.gutterTop    = prop['chart.gutter.top'];
              this.gutterBottom = prop['chart.gutter.bottom'];
              this.gutterCenter = prop['chart.gutter.center'];
  
      
      
              // Reset the data to what was initially supplied
              this.left  = this.data[0];
              this.right = this.data[1];
      
      
              /**
              * Reset the coords array
              */
              this.coords = [];
  
  
  
              /**
              * Stop this growing uncontrollably
              */
              this.coordsText = [];
              
              
              if (prop['chart.variant'] === '3d') {
                  if (prop['chart.text.accessible']) {
                      // Nada
                  } else {
                      co.setTransform(1,prop['chart.variant.threed.angle'],0,1,0.5,0.5);
                  }
              }
  
  
  
              // Some necessary variables
              this.axisWidth  = (ca.width - prop['chart.gutter.center'] - this.gutterLeft - this.gutterRight) / 2;
              this.axisHeight = ca.height - this.gutterTop - this.gutterBottom;
  
  
              // Reset the sequential index
              this.sequentialFullIndex = 0;
  
  
  
              this.getMax();
              this.drawBackgroundGrid();
              this.draw3DAxes();
              this.drawAxes();
              this.drawTicks();
  
              co.save();
              co.beginPath();
                  co.rect(this.gutterLeft, this.gutterTop - (prop['chart.variant.threed.offsety'] || 0), ca.width - this.gutterLeft - this.gutterRight, ca.height - this.gutterTop - this.gutterBottom + (2 * (prop['chart.variant.threed.offsety'] || 0)) );
                  co.clip();
                  
                  this.drawLeftBars();
                  this.drawRightBars();
  
                  // Redraw the bars so that shadows on not on top
                  this.drawLeftBars({shadow: false});
                  this.drawRightBars({shadow: false});
              co.restore();
  
              this.drawAxes();
      
              this.drawLabels();
              this.drawTitles();
      
      
              /**
              * Setup the context menu if required
              */
              if (prop['chart.contextmenu']) {
                  RG.ShowContext(this);
              }
      
              
              /**
              * This function enables resizing
              */
              if (prop['chart.resizable']) {
                  RG.AllowResizing(this);
              }
      
      
              /**
              * This installs the event listeners
              */
              RG.InstallEventListeners(this);
      
  
              /**
              * Fire the onfirstdraw event
              */
              if (this.firstDraw) {
                  RG.fireCustomEvent(this, 'onfirstdraw');
                  this.firstDraw = false;
                  this.firstDrawFunc();
              }
  
  
              /**
              * Fire the RGraph ondraw event
              */
              RG.FireCustomEvent(this, 'ondraw');
  
              return this;
          };
          
          
          
          /**
          * Used in chaining. Runs a function there and then - not waiting for
          * the events to fire (eg the onbeforedraw event)
          * 
          * @param function func The function to execute
          */
          this.exec = function (func)
          {
              func(this);
              
              return this;
          };
  
  
  
  
          /**
          * Draws the axes
          */
          this.draw3DAxes = function ()
          {
              if (prop['chart.variant'] === '3d') {
                  var offsetx = prop['chart.variant.threed.offsetx'],
                      offsety = prop['chart.variant.threed.offsety'];
      
                  // Set the linewidth
                  co.lineWidth = prop['chart.axis.linewidth'] + 0.001;
      
          
                  // Draw the left set of axes
                  co.beginPath();
                  co.strokeStyle = prop['chart.axis.color'];
                  
                  // Draw the horizontal 3d axis
                  // The left horizontal axis
                  pa2(co,
                      'b m % % l % % l % % l % % s #aaa f #ddd',
                      this.gutterLeft, ma.round( ca.height - this.gutterBottom),
                      this.gutterLeft + offsetx, ma.round( ca.height - this.gutterBottom - offsety),
                      this.gutterLeft + offsetx + this.axisWidth, ma.round( ca.height - this.gutterBottom - offsety),
                      this.gutterLeft + this.axisWidth, ma.round( ca.height - this.gutterBottom)
                  );
                  
                  // The left vertical axis
                  this.draw3DLeftVerticalAxis();
                  
                  
                  
                  
                  // Draw the right horizontal axes
                  pa2(co,
                      'b m % % l % % l % % l % % s #aaa f #ddd',
                      this.gutterLeft + this.gutterCenter + this.axisWidth, ma.round( ca.height - this.gutterBottom),
                      this.gutterLeft + this.gutterCenter + this.axisWidth + offsetx, ma.round( ca.height - this.gutterBottom - offsety),
                      this.gutterLeft + this.gutterCenter + this.axisWidth + this.axisWidth + offsetx, ma.round( ca.height - this.gutterBottom - offsety),
                      this.gutterLeft + this.gutterCenter + this.axisWidth + this.axisWidth, ma.round( ca.height - this.gutterBottom)
                  );
                  
                  
                  
                  
                  // Draw the right vertical axes
                  pa2(co,
                      'b m % % l % % l % % l % % s #aaa f #ddd',
                      this.gutterLeft + this.gutterCenter + this.axisWidth, ca.height - this.gutterBottom,
                      this.gutterLeft + this.gutterCenter + this.axisWidth, ca.height - this.gutterBottom - this.axisHeight,
                      this.gutterLeft + this.gutterCenter + this.axisWidth + offsetx, ca.height - this.gutterBottom - this.axisHeight - offsety,
                      this.gutterLeft + this.gutterCenter + this.axisWidth + offsetx, ca.height - this.gutterBottom - offsety
                  );
              }
          }
          
          
          
          
          this.draw3DLeftVerticalAxis = function ()
          {
              if (prop['chart.variant'] === '3d') {
                  var offsetx = prop['chart.variant.threed.offsetx'],
                      offsety = prop['chart.variant.threed.offsety'];
      
                  // The left vertical axis
                  pa2(co,
                      'b m % % l % % l % % l % % s #aaa f #ddd',
                      this.gutterLeft + this.axisWidth, this.gutterTop,
                      this.gutterLeft + this.axisWidth + offsetx, this.gutterTop - offsety,
                      this.gutterLeft + this.axisWidth + offsetx, ca.height - this.gutterBottom - offsety,
                      this.gutterLeft + this.axisWidth, ca.height - this.gutterBottom
                  );
              }
          };
  
  
  
  
          /**
          * Draws the axes
          */
          this.drawAxes =
          this.DrawAxes = function ()
          {
              // Set the linewidth
              co.lineWidth = prop['chart.axis.linewidth'] + 0.001;
  
      
              // Draw the left set of axes
              co.beginPath();
              co.strokeStyle = prop['chart.axis.color'];
      
              this.axisWidth  = (ca.width - prop['chart.gutter.center'] - this.gutterLeft - this.gutterRight) / 2;
              this.axisHeight = ca.height - this.gutterTop - this.gutterBottom;
              
              
              // This must be here so that the two above variables are calculated
              if (prop['chart.noaxes']) {
                  return;
              }
      
              co.moveTo(this.gutterLeft, Math.round( ca.height - this.gutterBottom));
              co.lineTo(this.gutterLeft + this.axisWidth, Math.round( ca.height - this.gutterBottom));
              
              co.moveTo(ma.round( this.gutterLeft + this.axisWidth), ca.height - this.gutterBottom);
              co.lineTo(ma.round( this.gutterLeft + this.axisWidth), this.gutterTop);
              
              co.stroke();
      
      
              // Draw the right set of axes
              co.beginPath();
      
              var x = this.gutterLeft + this.axisWidth + prop['chart.gutter.center'];
              
              co.moveTo(Math.round( x), this.gutterTop);
              co.lineTo(Math.round( x), ca.height - this.gutterBottom);
              
              co.moveTo(Math.round( x), Math.round( ca.height - this.gutterBottom));
              co.lineTo(ca.width - this.gutterRight, Math.round( ca.height - this.gutterBottom));
      
              co.stroke();
          };
  
  
  
  
          /**
          * Draws the tick marks on the axes
          */
          this.drawTicks =
          this.DrawTicks = function ()
          {
              // Set the linewidth
              co.lineWidth = prop['chart.axis.linewidth'] + 0.001;
      
              var numDataPoints = this.left.length;
              var barHeight     = ( (ca.height - this.gutterTop - this.gutterBottom)- (this.left.length * (prop['chart.margin'] * 2) )) / numDataPoints;
      
              // Store this for later
              this.barHeight = barHeight;
      
              // If no axes - no tickmarks
              if (prop['chart.noaxes']) {
                  return;
              }
      
              // Draw the left Y tick marks
              if (prop['chart.numyticks'] > 0) {
                  co.beginPath();
                      for (var i=0; i<prop['chart.numyticks']; ++i) {
                          var y = prop['chart.gutter.top'] + (((ca.height - this.gutterTop - this.gutterBottom) / prop['chart.numyticks']) * i);
                          co.moveTo(this.gutterLeft + this.axisWidth , y);
                          co.lineTo(this.gutterLeft + this.axisWidth + 3, y);
                      }
                  co.stroke();
      
                  //Draw the right axis Y tick marks
                  co.beginPath();
                      for (var i=0; i<prop['chart.numyticks']; ++i) {
                          var y = prop['chart.gutter.top'] + (((ca.height - this.gutterTop - this.gutterBottom) / prop['chart.numyticks']) * i);
                          co.moveTo(this.gutterLeft + this.axisWidth + prop['chart.gutter.center'], y);
                          co.lineTo(this.gutterLeft + this.axisWidth + prop['chart.gutter.center'] - 3, y);
                      }
                  co.stroke();
              }
              
              
              
              /**
              * X tickmarks
              */
              if (prop['chart.numxticks'] > 0) {
                  var xInterval = this.axisWidth / prop['chart.numxticks'];
          
                  // Is chart.xtickinterval specified ? If so, use that.
                  if (typeof(prop['chart.xtickinterval']) == 'number') {
                      xInterval = prop['chart.xtickinterval'];
                  }
          
                  
                  // Draw the left sides X tick marks
                  for (i=this.gutterLeft; i<(this.gutterLeft + this.axisWidth); i+=xInterval) {
                      co.beginPath();
                      co.moveTo(Math.round( i), ca.height - this.gutterBottom);
                      co.lineTo(Math.round( i), (ca.height - this.gutterBottom) + 4);
                      co.closePath();
                      
                      co.stroke();
                  }
          
                  // Draw the right sides X tick marks
                  var stoppingPoint = ca.width - this.gutterRight;
          
                  for (i=(this.gutterLeft + this.axisWidth + prop['chart.gutter.center'] + xInterval); i<=stoppingPoint; i+=xInterval) {
                      co.beginPath();
                          co.moveTo(Math.round(i), ca.height - this.gutterBottom);
                          co.lineTo(Math.round(i), (ca.height - this.gutterBottom) + 4);
                      co.closePath();
                      
                      co.stroke();
                  }
              }
          };
  
  
  
  
          /**
          * Figures out the maximum value, or if defined, uses xmax
          */
          this.getMax =
          this.GetMax = function()
          {
              var dec  = prop['chart.scale.decimals'];
              
              // chart.xmax defined
              if (prop['chart.xmax']) {
      
                  var max = prop['chart.xmax'];
                  var min = prop['chart.xmin'];
      
                  this.scale2 = RG.getScale2(this, {
                      'max':max,
                      'min':min,
                      'strict': true,
                      'scale.thousand':prop['chart.scale.thousand'],
                      'scale.point':prop['chart.scale.point'],
                      'scale.decimals':prop['chart.scale.decimals'],
                      'ylabels.count':prop['chart.labels.count'],
                      'scale.round':prop['chart.scale.round'],
                      'units.pre': prop['chart.units.pre'],
                      'units.post': prop['chart.units.post']
                  });
                  this.max = this.scale2.max;
                  this.min = this.scale2.min;
      
      
              /**
              * Generate the scale ourselves
              */
              } else {
      
                  var max = Math.max(RG.array_max(this.left), RG.array_max(this.right));
      
                  this.scale2 = RG.getScale2(this, {
                      'max':max,
                      //'strict': true,
                      'min':prop['chart.xmin'],
                      'scale.thousand':prop['chart.scale.thousand'],
                      'scale.point':prop['chart.scale.point'],
                      'scale.decimals':prop['chart.scale.decimals'],
                      'ylabels.count':prop['chart.labels.count'],
                      'scale.round':prop['chart.scale.round'],
                      'units.pre': prop['chart.units.pre'],
                      'units.post': prop['chart.units.post']
                  });
      
      
                  this.max = this.scale2.max;
                  this.min = this.scale2.min;
              }
      
              // Don't need to return it as it is stored in this.max
          };
  
  
  
  
          /**
          * Function to draw the left hand bars
          */
          this.drawLeftBars =
          this.DrawLeftBars = function ()
          {
              var opt = {};
  
              if (typeof arguments[0] === 'object') {
                  opt.shadow = arguments[0].shadow;
              } else {
                  opt.shadow = true;
              }
  
              var offsetx = prop['chart.variant.threed.offsetx'],
                  offsety = prop['chart.variant.threed.offsety'];
  
              // Set the stroke colour
              co.strokeStyle = prop['chart.strokestyle'];
              
              // Set the linewidth
              co.lineWidth = prop['chart.linewidth'];
      
              for (var i=(this.left.length - 1); i>=0; i-=1) {
  
                  /**
                  * Turn on a shadow if requested
                  */
                  if (prop['chart.shadow'] && prop['chart.variant'] !== '3d' && opt.shadow) {
                      co.shadowColor   = prop['chart.shadow.color'];
                      co.shadowBlur    = prop['chart.shadow.blur'];
                      co.shadowOffsetX = prop['chart.shadow.offsetx'];
                      co.shadowOffsetY = prop['chart.shadow.offsety'];
                  }
  
  
  
  
                  // If chart.colors.sequential is specified - handle that
                  // ** There's another instance of this further down **
                  if (prop['chart.colors.sequential']) {
                      co.fillStyle = prop['chart.colors'][i];
  
                  } else {
                      co.fillStyle = prop['chart.colors'][0];
                  }
  
  
  
  
                  /**
                  * Work out the coordinates
                  */
  
                  var width = (( (this.left[i] - this.min) / (this.max - this.min)) *  this.axisWidth);
  
                  var coords = [
                      ma.round( this.gutterLeft + this.axisWidth - width),
                      ma.round( this.gutterTop + (i * ( this.axisHeight / this.left.length)) + prop['chart.margin']),
                      width,
                      this.barHeight
                  ];
  
                  // Draw the IE shadow if necessary
                  if (RG.ISOLD && prop['chart.shadow']) {
                      this.drawIEShadow(coords);
                  }
      
                  
                  if (this.left[i] !== null) {
                      co.strokeRect(coords[0], coords[1], coords[2], coords[3]);
                      co.fillRect(coords[0], coords[1], coords[2], coords[3]);
                  }
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
                  // Draw the 3D sides if required
                  if (prop['chart.variant'] === '3d' && this.left[i] !== null) {
  
                      // If the shadow is enabled draw the backface for
                      // (that we don't actually see
                      if (prop['chart.shadow'] && opt.shadow) {
  
                          co.shadowColor   = prop['chart.shadow.color'];
                          co.shadowBlur    = prop['chart.shadow.blur'];
                          co.shadowOffsetX = prop['chart.shadow.offsetx'];
                          co.shadowOffsetY = prop['chart.shadow.offsety'];
  
  
                          pa2(co,
                              'b m % % l % % l % % l % % f black sc rgba(0,0,0,0) sx 0 sy 0 sb 0',
                              coords[0] + offsetx, coords[1] - offsety,
                              coords[0] + offsetx + coords[2], coords[1] - offsety,
                              coords[0] + offsetx + coords[2], coords[1] - offsety + coords[3],
                              coords[0] + offsetx,coords[1] - offsety + coords[3]
                          );
                      }
  
  
  
                      // If chart.colors.sequential is specified - handle that (again)
                      //
                      // ** There's another instance of this further up **
                      if (prop['chart.colors.sequential']) {
                          co.fillStyle = prop['chart.colors'][i];
      
                      } else {
                          co.fillStyle = prop['chart.colors'][0];
                      }
  
                      pa2(co,
                          'b m % % l % % l % % l % % f %',
                          coords[0],coords[1],
                          coords[0] + offsetx, coords[1] - offsety,
                          coords[0] + offsetx + coords[2], coords[1] - offsety,
                          coords[0] + coords[2], coords[1]
                      );
  
                      pa2(co,
                          'b m % % l % % l % % l % % f rgba(255,255,255,0.4)',
                          coords[0],coords[1],
                          coords[0] + offsetx, coords[1] - offsety,
                          coords[0] + offsetx + coords[2], coords[1] - offsety,
                          coords[0] + coords[2], coords[1]
                      );
                  }
                  
                  this.draw3DLeftVerticalAxis();
      
  
  
  
  
  
  
  
  
  
  
  
  
  
  
                  // Add the coordinates to the coords array
                  this.coords.push([coords[0],coords[1],coords[2],coords[3]]);
                  this.coordsLeft.push([coords[0],coords[1],coords[2],coords[3]]);
              }
      
              /**
              * Turn off any shadow
              */
              RG.noShadow(this);
              
              // Reset the linewidth
              co.lineWidth = 1;
          };
  
  
  
  
          /**
          * Function to draw the right hand bars
          */
          this.drawRightBars =
          this.DrawRightBars = function ()
          {
              var opt = {};
              
              if (typeof arguments[0] === 'object') {
                  opt.shadow = arguments[0].shadow;
              } else {
                  opt.shadow = true;
              }
  
              var offsetx = prop['chart.variant.threed.offsetx'],
                  offsety = prop['chart.variant.threed.offsety'];
  
  
  
  
              // Set the stroke colour
              co.strokeStyle = prop['chart.strokestyle'];
              
              // Set the linewidth
              co.lineWidth = prop['chart.linewidth'];
                  
              /**
              * Turn on a shadow if requested
              */
              if (prop['chart.shadow'] && prop['chart.variant'] !== '3d' && opt.shadow) {
                  co.shadowColor   = prop['chart.shadow.color'];
                  co.shadowBlur    = prop['chart.shadow.blur'];
                  co.shadowOffsetX = prop['chart.shadow.offsetx'];
                  co.shadowOffsetY = prop['chart.shadow.offsety'];
              }
  
              for (var i=(this.right.length - 1); i>=0; i-=1) {
  
      
                  // If chart.colors.sequential is specified - handle that
                  if (prop['chart.colors.sequential']) {
                      co.fillStyle = prop['chart.colors'][i];
  
                  } else {
                      co.fillStyle = prop['chart.colors'][0];
                  }
  
      
                  var width = (((this.right[i] - this.min) / (this.max - this.min)) * this.axisWidth);
  
                  var coords = [
                      ma.round( this.gutterLeft + this.axisWidth + prop['chart.gutter.center']),
                      ma.round( prop['chart.margin'] + (i * (this.axisHeight / this.right.length)) + this.gutterTop),
                      width,
                      this.barHeight
                  ];
      
                  // Draw the IE shadow if necessary
                  if (RG.ISOLD && prop['chart.shadow']) {
                      this.DrawIEShadow(coords);
                  }
  
                  if (this.right[i] !== null) {
                      co.strokeRect(ma.round( coords[0]), Math.round( coords[1]), coords[2], coords[3]);
                      co.fillRect(ma.round( coords[0]), Math.round( coords[1]), coords[2], coords[3]);
                  }
  
  
  
  
  
  
  
  
  
  
  
  
  
                  // Draw the 3D sides if required
                  if (prop['chart.variant'] === '3d' && this.right[i] !== null) {
  
                      var color = co.fillStyle;
                      
  
                      // If the shadow is enabled draw the backface for
                      // (that we don't actually see
                      if (prop['chart.shadow'] && opt.shadow) {
  
                          co.shadowColor   = prop['chart.shadow.color'];
                          co.shadowBlur    = prop['chart.shadow.blur'];
                          co.shadowOffsetX = prop['chart.shadow.offsetx'];
                          co.shadowOffsetY = prop['chart.shadow.offsety'];
  
                          pa2(co,
                              'b m % % l % % l % % l % % f black sc rgba(0,0,0,0) sx 0 sy 0 sb 0',
                              coords[0] + offsetx, coords[1] - offsety,
                              coords[0] + offsetx + coords[2], coords[1] - offsety,
                              coords[0] + offsetx + coords[2], coords[1] - offsety + coords[3],
                              coords[0] + offsetx,coords[1] - offsety + coords[3]
                          );
                      }
  
                      // Draw the top
                      pa2(co,
                          'b m % % l % % l % % l % % f %',
                          coords[0],coords[1],
                          coords[0] + offsetx, coords[1] - offsety,
                          coords[0] + offsetx + coords[2], coords[1] - offsety,
                          coords[0] + coords[2], coords[1],
                          color
                      );
  
  
                      // Draw the right hand side
                      pa2(co,
                          'b m % % l % % l % % l % % f %',
                          coords[0] + coords[2],coords[1],
                          coords[0] + coords[2] + offsetx, coords[1] - offsety,
                          coords[0] + coords[2] + offsetx, coords[1] - offsety + coords[3],
                          coords[0] + coords[2],coords[1] + coords[3],
                          color
                      );
  
                      // Draw the LIGHTER top
                      pa2(co,
                          'b m % % l % % l % % l % % f rgba(255,255,255,0.6)',
                          coords[0],coords[1],
                          coords[0] + offsetx, coords[1] - offsety,
                          coords[0] + offsetx + coords[2], coords[1] - offsety,
                          coords[0] + coords[2], coords[1]
                      );
  
  
                      // Draw the DARKER right hand side
                      pa2(co,
                          'b m % % l % % l % % l % % f rgba(0,0,0,0.3)',
                          coords[0] + coords[2],coords[1],
                          coords[0] + coords[2] + offsetx, coords[1] - offsety,
                          coords[0] + coords[2] + offsetx, coords[1] - offsety + coords[3],
                          coords[0] + coords[2],coords[1] + coords[3]
                      );
                  }
  
  
  
  
  
  
  
  
  
  
  
  
  
                  /**
                  * Add the coordinates to the coords array
                  */
                  this.coords.push([coords[0],coords[1],coords[2],coords[3]]);
                  this.coordsRight.push([coords[0],coords[1],coords[2],coords[3]]);
              }
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
              /**
              * Turn off any shadow
              */
              RG.NoShadow(this);
              
              // Reset the linewidth
              co.lineWidth = 1;
          };
  
  
  
  
          /**
          * Draws the titles
          */
          this.drawLabels =
          this.DrawLabels = function ()
          {
  
              var font   = prop['chart.text.font'],
                  color  = prop['chart.labels.color'] || prop['chart.text.color'],
                  size   = prop['chart.text.size'],
                  labels = prop['chart.labels'],
                  barAreaHeight = ca.height - this.gutterTop - this.gutterBottom
  
              co.fillStyle = color;
  
              for (var i=0,len=labels.length; i<len; i+=1) {
                  RG.Text2(this, {
                      'color': color,
                      'font':font,
                      'size':size,
                      'x':this.gutterLeft + this.axisWidth + (prop['chart.gutter.center'] / 2),
                      'y':this.gutterTop + ((barAreaHeight / labels.length) * (i)) + ((barAreaHeight / labels.length) / 2),
                      'text':String(labels[i] ? String(labels[i]) : ''),
                      'halign':'center',
                      'valign':'center',
                      'marker':false,
                      'tag': 'labels'
                  });
              }
  
  
  
              co.fillStyle = prop['chart.text.color'];
  
  
  
              if (prop['chart.xlabels']) {
              
                  var grapharea = (ca.width - prop['chart.gutter.center'] - this.gutterLeft - this.gutterRight) / 2;
  
                  // Now draw the X labels for the left hand side
                  for (var i=0; i<this.scale2.labels.length; ++i) {
                      RG.text2(this, {
                          'font':font,
                          'size':size,
                          'x':this.gutterLeft + ((grapharea / this.scale2.labels.length) * i),
                          'y':ca.height - this.gutterBottom + 3,
                          'text':this.scale2.labels[this.scale2.labels.length - i - 1],
                          'valign':'top',
                          'halign':'center',
                          'tag': 'scale'
                      });
  
  
  
  
                      // Draw the scale for the right hand side
                      RG.text2(this, {
                          'font':font,
                          'size':size,
                          'x':this.gutterLeft+ grapharea + prop['chart.gutter.center'] + ((grapharea / this.scale2.labels.length) * (i + 1)),
                          'y':ca.height - this.gutterBottom + 3,
                          'text':this.scale2.labels[i],
                          'valign':'top',
                          'halign':'center',
                          'tag': 'scale'
                      });
                  }
  
  
  
  
                  // Draw zero?
                  if (prop['chart.scale.zerostart']) {
                      RG.text2(this, {
                          'font':font,
                          'size':size,
                          'x':this.gutterLeft + this.axisWidth,
                          'y':ca.height - this.gutterBottom + 3,
                          'text':'0',
                          'valign':'top',
                          'halign':'center',
                          'tag': 'scale'
                      });
  
  
                      RG.text2(this, {
                          'font':font,
                          'size':size,
                          'x':this.gutterLeft + this.axisWidth + this.gutterCenter,
                          'y':ca.height - this.gutterBottom + 3,
                          'text':'0',
                          'valign':'top',
                          'halign':'center',
                          'tag': 'scale'
                      });
                  }
              }
              
              /**
              * Draw above labels
              */
              if (prop['chart.labels.above']) {
                  
                  // Draw the left sides above labels
                  
                  var coordsLeft = RG.arrayReverse(this.coordsLeft);
  
                  for (var i=0; i<coordsLeft.length; ++i) {
      
                      if (typeof this.left[i] !== 'number') {
                          continue;
                      }
      
                      var coords = coordsLeft[i];
  
                      RG.text2(this, {
                          font:font,
                          size:size,
                          x:coords[0] - 5,
                          y:coords[1] + (coords[3] / 2),
                          text:RG.numberFormat(
                              this,
                              this.left[i],
                              prop['chart.units.pre'],
                              prop['chart.units.post']
                          ),
                          valign:'center',
                          halign:'right',
                          tag:'labels.above'
                      });
                  }
  
  
  
  
  
  
  
  
                  // Draw the right sides above labels
                  
                  var coordsRight = RG.arrayReverse(this.coordsRight);
  
                  for (i=0; i<coordsRight.length; ++i) {
  
                      if (typeof this.right[i] != 'number') {
                          continue;
                      }
  
                      var coords = coordsRight[i];
                      
                      RG.Text2(this, {
                          'font':font,
                          'size':size,
                          'x':coords[0] + coords[2] +  5,
                          'y':coords[1] + (coords[3] / 2),
                          'text':RG.number_format(this, this.right[i], prop['chart.units.pre'], prop['chart.units.post']),
                          'valign':'center',
                          'halign':'left',
                          'tag': 'labels.above'
                      });
                  }
              }
          };
  
  
  
  
          /**
          * Draws the titles
          */
          this.drawTitles =
          this.DrawTitles = function ()
          {
              RG.Text2(this, {
                  'font':prop['chart.text.font'],
                  'size':prop['chart.text.size'],
                  'x':this.gutterLeft + 5,
                  'y':this.gutterTop - 5,
                  'text':String(prop['chart.title.left']),
                  'halign':'left',
                  'valign':'bottom',
                  'tag': 'title.left'
              });
      
              RG.Text2(this, {
                  'font':prop['chart.text.font'],
                  'size':prop['chart.text.size'],
                  'x': ca.width - this.gutterRight - 5,
                  'y':this.gutterTop - 5,
                  'text':String(prop['chart.title.right']),
                  'halign':'right',
                  'valign':'bottom',
                  'tag': 'title.right'
              });
  
      
              
              // Draw the main title for the whole chart
              RG.drawTitle(
                  this,
                  prop['chart.title'],
                  this.gutterTop,
                  null,
                  prop['chart.title.size'] ? prop['chart.title.size'] : null
              );
          };
  
  
  
  
          /**
          * This function is used by MSIE only to manually draw the shadow
          * 
          * @param array coords The coords for the bar
          */
          this.drawIEShadow =
          this.DrawIEShadow = function (coords)
          {
              var prevFillStyle = co.fillStyle;
              var offsetx = prop['chart.shadow.offsetx'];
              var offsety = prop['chart.shadow.offsety'];
              
              co.lineWidth = prop['chart.linewidth'];
              co.fillStyle = prop['chart.shadow.color'];
              co.beginPath();
              
              // Draw shadow here
              co.fillRect(coords[0] + offsetx, coords[1] + offsety, coords[2],coords[3]);
      
              co.fill();
              
              // Change the fillstyle back to what it was
              co.fillStyle = prevFillStyle;
          }
  
  
  
  
          /**
          * Returns the appropriate focussed bar coordinates
          * 
          * @param e object The event object
          */
          this.getShape = 
          this.getBar = function (e)
          {
              var canvas      = this.canvas,
                  context     = this.context,
                  mouseCoords = RG.getMouseXY(e)
      
              /**
              * Loop through the bars determining if the mouse is over a bar
              */
              for (var i=0; i<this.coords.length; i++) {
      
                  var mouseX = mouseCoords[0],
                      mouseY = mouseCoords[1],
                      left   = this.coords[i][0],
                      top    = this.coords[i][1],
                      width  = this.coords[i][2],
                      height = this.coords[i][3]
      
                  //if (mouseX >= left && mouseX <= (left + width) && mouseY >= top && mouseY <= (top + height) ) {
                  pa2(co,
                      'b r % % % %',
                      left,
                      top,
                      width,
                      height
                  );
                  
                  if (co.isPointInPath(mouseX, mouseY)) {
                  
                      var tooltip = RG.parseTooltipText(prop['chart.tooltips'], i);
  
                      return {
                          0: this,1: left,2: top,3: width,4: height,5: i,
                          'object': this, 'x': left, 'y': top, 'width': width, 'height': height, 'index': i, 'tooltip': tooltip
                      };
                  }
              }
      
              return null;
          };
  
  
  
  
          /**
          * Each object type has its own Highlight() function which highlights the appropriate shape
          * 
          * @param object shape The shape to highlight
          */
          this.highlight =
          this.Highlight = function (shape)
          {
              if (typeof prop['chart.highlight.style'] === 'function') {
                  (prop['chart.highlight.style'])(shape);
              } else {
                  RG.Highlight.Rect(this, shape);
              }
          };
  
  
  
  
          /**
          * When you click on the canvas, this will return the relevant value (if any)
          * 
          * REMEMBER This function will need updating if the Bipolar ever gets chart.ymin
          * 
          * @param object e The event object
          */
          this.getValue = function (e)
          {
              var obj     = e.target.__object__;
              var mouseXY = RG.getMouseXY(e);
              var mouseX  = mouseXY[0];
              
              /**
              * Left hand side
              */
              if (mouseX > this.gutterLeft && mouseX < ( (ca.width / 2) - (prop['chart.gutter.center'] / 2) )) {
                  var value = (mouseX - prop['chart.gutter.left']) / this.axisWidth;
                      value = this.max - (value * this.max);
              }
              
              /**
              * Right hand side
              */
              if (mouseX < (ca.width -  this.gutterRight) && mouseX > ( (ca.width / 2) + (prop['chart.gutter.center'] / 2) )) {
                  var value = (mouseX - prop['chart.gutter.left'] - this.axisWidth - prop['chart.gutter.center']) / this.axisWidth;
                      value = (value * this.max);
              }
              
              return value;
          };
  
  
  
  
          /**
          * The getObjectByXY() worker method. Don't call this call:
          * 
          * RGraph.ObjectRegistry.getObjectByXY(e)
          * 
          * @param object e The event object
          */
          this.getObjectByXY = function (e)
          {
              var mouseXY = RG.getMouseXY(e);
  
              // Adjust the mouse Y coordinate for when the bar chart is
              // a 3D variant
  
              if (prop['chart.variant'] === '3d') {
                  var adjustment = prop['chart.variant.threed.angle'] * mouseXY[0];
                  mouseXY[1] -= adjustment;
              }
  
  
  
              if (
                     mouseXY[0] > prop['chart.gutter.left']
                  && mouseXY[0] < (ca.width - prop['chart.gutter.right'])
                  && mouseXY[1] > prop['chart.gutter.top']
                  && mouseXY[1] < (ca.height - prop['chart.gutter.bottom'])
                  ) {
      
                  return this;
              }
          };
  
  
  
  
          /**
          * This function positions a tooltip when it is displayed
          * 
          * @param obj object    The chart object
          * @param int x         The X coordinate specified for the tooltip
          * @param int y         The Y coordinate specified for the tooltip
          * @param objec tooltip The tooltips DIV element
          *
          this.positionTooltip = function (obj, x, y, tooltip, idx)
          {
              var coordX     = obj.coords[tooltip.__index__][0],
                  coordY     = obj.coords[tooltip.__index__][1],
                  coordW     = obj.coords[tooltip.__index__][2],
                  coordH     = obj.coords[tooltip.__index__][3],
                  canvasXY   = RG.getCanvasXY(obj.canvas),
                  mouseXY    = RG.getMouseXY(window.event),
                  gutterLeft = obj.Get('chart.gutter.left'),
                  gutterTop  = obj.Get('chart.gutter.top'),
                  width      = tooltip.offsetWidth,
                  height     = tooltip.offsetHeight
  
              // If the chart is a 3D version the tooltip Y position needs this
              // adjustment
              if (prop['chart.variant'] === '3d' && mouseXY) {
                  var adjustment = (prop['chart.variant.threed.angle'] * mouseXY[0]);
              }
  
              // Set the top position
              tooltip.style.left = 0;
              tooltip.style.top  = window.event.pageY - height - 5 + 'px';
              
  
              // By default any overflow is hidden
              tooltip.style.overflow = '';
  
              // LEFT edge
              if (canvasXY[0] + mouseXY[0]  - (width / 2) < 0) {
                  tooltip.style.left = canvasXY[0] + mouseXY[0] - (width * 0.1) + 'px';
      
              // RIGHT edge
              } else if (canvasXY[0] + mouseXY[0]  + (width / 2) > doc.body.offsetWidth) {
                  tooltip.style.left = canvasXY[0] + mouseXY[0] - (width * 0.9) + 'px';
      
              // Default positioning - CENTERED
              } else {
                  tooltip.style.left = canvasXY[0] + mouseXY[0]  - (width / 2) + 'px';
              }
          };*/
  
  
  
  
          /**
          * Returns the X coords for a value. Returns two coords because there are... two scales.
          * 
          * @param number value The value to get the coord for
          */
          this.getXCoord = function (value)
          {
              if (value > this.max || value < 0) {
                  return null;
              }
      
              var ret = [];
              
              // The offset into the graph area
              var offset = ((value / this.max) * this.axisWidth);
              
              // Get the coords (one fo each side)
              ret[0] = (this.gutterLeft + this.axisWidth) - offset;
              ret[1] = (ca.width - this.gutterRight - this.axisWidth) + offset;
              
              return ret;
          };
  
  
  
  
          /**
          * This allows for easy specification of gradients
          */
          this.parseColors = function ()
          {
              // Save the original colors so that they can be restored when the canvas is reset
              if (this.original_colors.length === 0) {
                  this.original_colors['chart.colors']           = RG.array_clone(prop['chart.colors']);
                  this.original_colors['chart.highlight.stroke'] = RG.array_clone(prop['chart.highlight.fill']);
                  this.original_colors['chart.highlight.fill']   = RG.array_clone(prop['chart.highlight.fill']);
                  this.original_colors['chart.axis.color']       = RG.array_clone(prop['chart.axis.color']);
                  this.original_colors['chart.strokestyle']      = RG.array_clone(prop['chart.strokestyle']);
              }
  
              var props = this.properties;
              var colors = props['chart.colors'];
      
              for (var i=0; i<colors.length; ++i) {
                  colors[i] = this.parseSingleColorForGradient(colors[i]);
              }
              
              props['chart.highlight.stroke'] = this.parseSingleColorForGradient(props['chart.highlight.stroke']);
              props['chart.highlight.fill']   = this.parseSingleColorForGradient(props['chart.highlight.fill']);
              props['chart.axis.color']       = this.parseSingleColorForGradient(props['chart.axis.color']);
              props['chart.strokestyle']      = this.parseSingleColorForGradient(props['chart.strokestyle']);
          };
  
  
  
  
          /**
          * Use this function to reset the object to the post-constructor state. Eg reset colors if
          * need be etc
          */
          this.reset = function ()
          {
          };
  
  
  
  
          /**
          * This parses a single color value
          */
          this.parseSingleColorForGradient = function (color)
          {
              if (!color || typeof(color) != 'string') {
                  return color;
              }
      
              if (color.match(/^gradient\((.*)\)$/i)) {
                  
                  var parts = RegExp.$1.split(':');
      
                  // Create the gradient
                  var grad = co.createLinearGradient(prop['chart.gutter.left'],0,ca.width - prop['chart.gutter.right'],0);
      
                  var diff = 1 / (parts.length - 1);
      
                  grad.addColorStop(0, RG.trim(parts[0]));
      
                  for (var j=1; j<parts.length; ++j) {
                      grad.addColorStop(j * diff, RG.trim(parts[j]));
                  }
              }
                  
              return grad ? grad : color;
          };
  
  
  
  
          /**
          * Using a function to add events makes it easier to facilitate method chaining
          * 
          * @param string   type The type of even to add
          * @param function func 
          */
          this.on = function (type, func)
          {
              if (type.substr(0,2) !== 'on') {
                  type = 'on' + type;
              }
              
              if (typeof this[type] !== 'function') {
                  this[type] = func;
              } else {
                  RG.addCustomEventListener(this, type, func);
              }
      
              return this;
          };
  
  
  
  
          //
          // Draw the background grid
          //
          this.drawBackgroundGrid = function ()
          {
              if (prop['chart.background.grid']) {
  
                  var variant   = prop['chart.variant'],
                      color     = prop['chart.background.grid.color'],
                      numvlines = prop['chart.labels.count'],
                      numhlines = this.left.length,
                      vlines    = prop['chart.background.grid.vlines'],
                      hlines    = prop['chart.background.grid.hlines'],
                      linewidth = prop['chart.background.grid.linewidth'];
                  
                  // Autofit
                  if (typeof prop['chart.background.grid.autofit.numhlines'] === 'number') {
                      numhlines = prop['chart.background.grid.autofit.numhlines'];
                  }
  
                  if (typeof prop['chart.background.grid.autofit.numvlines'] === 'number') {
                      numvlines = prop['chart.background.grid.autofit.numvlines'];
                  }
                  
                  co.lineWidth = linewidth;
                  
                  // If it's a bar and 3D variant, translate
                  if (variant == '3d') {
                      co.save();
                      co.translate(
                          prop['chart.variant.threed.offsetx'],
                          -1 * prop['chart.variant.threed.offsety']
                      );
                  }
  
                  // Draw vertical grid lines for the left side
                  if (vlines) {
                      for (var i=0; i<=numvlines; i+=1) {
                          pa2(co,
                              'b m % % l % % s %',
                              this.gutterLeft + (this.axisWidth / numvlines) * i, this.gutterTop,
                              this.gutterLeft + (this.axisWidth / numvlines) * i, this.gutterTop + this.axisHeight,
                              color
                          );
  
                      }
                  }
                  
                  // Draw horizontal grid lines for the left side
                  if (hlines) {
                      for (var i=0; i<=numhlines; i+=1) {
                          pa2(co,
                              'b m % % l % % s %',
                              this.gutterLeft, this.gutterTop + (this.axisHeight / numhlines) * i,
                              this.gutterLeft + this.axisWidth, this.gutterTop + (this.axisHeight / numhlines) * i,
                              color
                          );
                      }
                  }
      
                  
                  // Draw vertical grid lines for the right side
                  if (vlines) {
                      for (var i=0; i<=numvlines; i+=1) {
                          pa2(co,
                              'b m % % l % % s %',
                              this.gutterLeft + this.gutterCenter + this.axisWidth + (this.axisWidth / numvlines) * i, this.gutterTop,
                              this.gutterLeft + this.gutterCenter + this.axisWidth + (this.axisWidth / numvlines) * i, this.gutterTop + this.axisHeight,
                              color
                          );
                      }
                  }
                  
                  // Draw horizontal grid lines for the right side
                  if (hlines) {
                      for (var i=0; i<=numhlines; i+=1) {
                          pa2(co,
                              'b m % % l % % s %',
                              this.gutterLeft + this.axisWidth + this.gutterCenter, this.gutterTop + (this.axisHeight / numhlines) * i,
                              this.gutterLeft + this.axisWidth + this.gutterCenter + this.axisWidth, this.gutterTop + (this.axisHeight / numhlines) * i,
                              color
                          );
                      }
                  }
                  
                  
                  // If it's a bar and 3D variant, translate
                  if (variant == '3d') {
                      co.restore();
                  }
              }
          };
  
  
  
  
          /**
          * This function runs once only
          * (put at the end of the file (before any effects))
          */
          this.firstDrawFunc = function ()
          {
              // Tooltips need reversing now because the bars
              // are drawn from the bottom up
              if (prop['chart.tooltips']) {
                  prop['chart.tooltips'] = RG.arrayReverse(prop['chart.tooltips']);
              }
          };
  
  
  
  
  
  
  
  
          /**
          * Objects are now always registered so that when RGraph.Redraw()
          * is called this chart will be redrawn.
          */
          RG.Register(this);
  
  
  
  
          /**
          * This is the 'end' of the constructor so if the first argument
          * contains configuration dsta - handle that.
          */
          if (parseConfObjectForOptions) {
              RG.parseObjectStyleConfig(this, conf.options);
          }
  
  
  
  
          /**
          * Grow
          * 
          * The Bipolar chart Grow effect gradually increases the values of the bars
          * 
          * @param object       An object of options - eg: {frames: 30}
          * @param function     A function to call when the effect is complete
          */
          this.grow = function ()
          {
              // Callback
              var opt      = arguments[0] || {};
              var frames   = opt.frames || 30;
              var frame    = 0;
              var callback = arguments[1] || function () {};
              var obj      = this;
      
              // Save the data
              var originalLeft  = RG.arrayClone(this.left);
              var originalRight = RG.arrayClone(this.right);
  
      
              // Stop the scale from changing by setting xmax (if it's not already set)
              if (RG.isNull(prop['chart.xmax'])) {
      
                  var xmax = 0;
      
                  // Go through the left and right data
                  for (var i=0; i<this.left.length; i+=1) { xmax = ma.max(xmax, ma.abs(this.left[i])); }
                  for (var i=0; i<this.right.length; i+=1) { xmax = ma.max(xmax, ma.abs(this.right[i])); }
  
                  var scale = RG.getScale2(obj, {'max':xmax});
                  this.Set('chart.xmax', scale.max);
              }
  
  
  
  
  
  
  
  
  
  
  
  
              var iterator = function ()
              {
                  var easingMultiplier = RG.Effects.getEasingMultiplier(frames, frame);
  
                  for (var i=0; i<obj.left.length; i+=1) { obj.left[i] = easingMultiplier * originalLeft[i]; }
                  for (var i=0; i<obj.right.length; i+=1) { obj.right[i] = easingMultiplier * originalRight[i]; }
  
                  RG.redrawCanvas(obj.canvas);
  
                  // Repeat or call the end function if one is defined
                  if (frame < frames) {
                      frame += 1;
                      RG.Effects.updateCanvas(iterator);
                  } else {
                      callback(obj);
                  }
              };
      
              iterator();
              
              return this;
          };
  
  
  
  
          /**
          * Bipolar chart Wave effect.
          * 
          * @param object   OPTIONAL An object map of options. You specify 'frames' here to give the number of frames in the effect
          * @param function OPTIONAL A function that will be called when the effect is complete
          */
          this.wave = function ()
          {
              var obj = this,
                  opt = arguments[0] || {};
                  opt.frames            =  opt.frames || 60;
                  opt.startFrames_left  = [];
                  opt.startFrames_right = [];
                  opt.counters_left     = [];
                  opt.counters_right    = [];
  
              var framesperbar    = opt.frames / 3,
                  frame_left      = -1,
                  frame_right     = -1,
                  callback        = arguments[1] || function () {},
                  original_left   = RG.arrayClone(obj.left),
                  original_right  = RG.arrayClone(obj.right);
  
              for (var i=0,len=obj.left.length; i<len; i+=1) {
                  opt.startFrames_left[i]  = ((opt.frames / 2) / (obj.left.length - 1)) * i;
                  opt.startFrames_right[i] = ((opt.frames / 2) / (obj.right.length - 1)) * i;
                  opt.counters_left[i]     = 0;
                  opt.counters_right[i]    = 0;
              }
  
              // This stops the chart from jumping
              obj.draw();
              obj.set('xmax', obj.scale2.max);
              RG.clear(obj.canvas);
  
  
              // Zero all of the data
              for (var i=0,len=obj.left.length; i<len; i+=1) {
                  if (typeof obj.left[i] === 'number') obj.left[i] = 0;
                  if (typeof obj.right[i] === 'number') obj.right[i] = 0;
              }
  
              //
              // Iterate over the left side
              //
              function iteratorLeft ()
              {
                  ++frame_left;
  
                  for (var i=0,len=obj.left.length; i<len; i+=1) {
                          if (frame_left > opt.startFrames_left[i]) {
                          
                              var isNull = RG.isNull(obj.left[i]);
                          
                              obj.left[i] = ma.min(
                                  ma.abs(original_left[i]),
                                  ma.abs(original_left[i] * ( (opt.counters_left[i]++) / framesperbar))
                              );
                              
                              // Make the number negative if the original was
                              if (original_left[i] < 0) {
                                  obj.left[i] *= -1;
                              }
                              
                              if (isNull) {
                                  obj.left[i] = null;
                              }
                          } else {
                              obj.left[i] = typeof obj.left[i] === 'object' && obj.left[i] ? RG.arrayPad([], obj.left[i].length, 0) : (RG.isNull(obj.left[i]) ? null : 0);
                          }
  
                  }
  
  
                  // No callback here - only called by the right function
                  if (frame_left < opt.frames) {
                      RG.redrawCanvas(obj.canvas);
                      RG.Effects.updateCanvas(iteratorLeft);
                  }
              }
  
  
  
  
              //
              // Iterate over the right side
              //
              function iteratorRight ()
              {
                  ++frame_right;
  
                  for (var i=0,len=obj.right.length; i<len; i+=1) {
                          if (frame_right > opt.startFrames_right[i]) {
                          
                              var isNull = RG.isNull(obj.right[i]);
                          
                              obj.right[i] = ma.min(
                                  ma.abs(original_right[i]),
                                  ma.abs(original_right[i] * ( (opt.counters_right[i]++) / framesperbar))
                              );
                              
                              // Make the number negative if the original was
                              if (original_right[i] < 0) {
                                  obj.right[i] *= -1;
                              }
  
                              if (isNull) {
                                  obj.right[i] = null;
                              }
  
                          } else {
                              obj.right[i] = typeof obj.right[i] === 'object' && obj.right[i] ? RG.arrayPad([], obj.right[i].length, 0) : (RG.isNull(obj.right[i]) ? null : 0);
                          }
                  }
  
  
                  // No callback here - only called by the right function
                  if (frame_right < opt.frames) {
                      RG.redrawCanvas(obj.canvas);
                      RG.Effects.updateCanvas(iteratorRight);
                  } else {
                      callback(this);
                  }
              }
  
  
  
  
              iteratorLeft();
              iteratorRight();
  
              return this;
          };
      };