code: function() {
        this.oCoords || this.setCoords();
        var yCoords = [this.oCoords.tl.y, this.oCoords.tr.y, this.oCoords.br.y, this.oCoords.bl.y];
        var minY = fabric.util.array.min(yCoords);
        var maxY = fabric.util.array.max(yCoords);
        return Math.abs(minY - maxY);
      }
docs: Returns height of an object's bounding rectangle
  @method getBoundingRectHeight
  @return {Number} height value