message: Transformable add globalScaleRatio
diff: @@ -145,8 +145,11 @@ Displayable.prototype = {
  * @type {boolean}
  */
  incremental: false,
  - // inplace is used with incremental
  - inplace: false,
  + /**
  + * Scale ratio for global scale.
  + * @type {boolean}
  + */
  + globalScaleRatio: 1,
  beforeBrush: function (ctx) {},
  