loadVt (modelTile) {
    let vt = this.viewtileStorage.get(modelTile)

    if (vt) {
      this.viewtileStorage.delete(modelTile)
    }
    if (vt === undefined) {
      vt = this.createVt(modelTile)
    }
    return vt
  }
/**
   * Load a ViewTile from storage or call to create new one if not found
   * 
   * @param {any} modelTile 
   * @returns 
   * @memberof ViewTileFactory
   */
Load a ViewTile from storage or call to create new one if not found

@param {any} modelTile
@returns
@memberof ViewTileFactory
Load a ViewTile from storage or call to create new one if not found @param { any } modelTile @returns @memberof ViewTileFactory
loadVt (modelTile) {
    let vt = this.viewtileStorage.get(modelTile)
    if (vt) {
      this.viewtileStorage.delete(modelTile)
    }
    if (vt === undefined) {
      vt = this.createVt(modelTile)
    }
    return vt
  }
loadVt ( modelTile ) { let vt = this . viewtileStorage . get ( modelTile ) if ( vt ) { this . viewtileStorage . delete ( modelTile ) } if ( vt === undefined ) { vt = this . createVt ( modelTile ) } return vt }
Load a ViewTile from storage or call to create new one if not found
Load a ViewTile from storage or call to create new one if not found