code: function(node, canvas, animating) {
          var f = node.getData('type'), 
              ctxObj = this.node.CanvasStyles;
          if(f != 'none') {
            var width = node.getData('lineWidth'),
                color = node.getData('color'),
                alpha = node.getData('alpha'),
                ctx = canvas.getCtx();
            
            ctx.lineWidth = width;
            ctx.fillStyle = ctx.strokeStyle = color;
            ctx.globalAlpha = alpha;
            
            for(var s in ctxObj) {
              ctx[s] = node.getCanvasStyle(s);
            }
  
            this.nodeTypes[f].render.call(this, node, canvas, animating);
          }
      }
docs: /*
  Method: plotNode
  
  Plots a <Graph.Node>.
  
  Parameters:
  
  node - (object) A <Graph.Node>.
  canvas - (object) A <Canvas> element.