docs: function (point) {
          var rect = this.getRect();
          var axis = this.getAxis();
          var orient = axis.orient;
          if (orient === 'horizontal') {
              return axis.contain(axis.toLocalCoord(point[0]))
              && (point[1] >= rect.y && point[1] <= (rect.y + rect.height));
          }
          else {
              return axis.contain(axis.toLocalCoord(point[1]))
              && (point[0] >= rect.y && point[0] <= (rect.y + rect.height));
          }
      }