code: function (x, y, z, obj) {
              var pos = this.pos2px(x,y);
              pos.top -= z * (this._tile.width / 2);
              obj.attr({
                  x: pos.left + Crafty.viewport._x, 
                  y: pos.top + Crafty.viewport._y
              }).z += z;
              return this;
          }
docs: @
  #Crafty.isometric.place
  @comp Crafty.isometric
  @sign public this Crafty.isometric.place(Number x, Number y, Number z, Entity tile)
  @param x - The `x` position to place the tile
  @param y - The `y` position to place the tile
  @param z - The `z` position or height to place the tile
  @param tile - The entity that should be position in the isometric fashion
  
  Use this method to place an entity in an isometric grid.
  
  @example
  ~~~
  var iso = Crafty.isometric.size(128);
  iso.place(2, 1, 0, Crafty.e('2D, DOM, Color').color('red').attr({w:128, h:128}));
  ~~~
  
  @see Crafty.isometric.size