UTFGrid

UTFGrid parameters:
Center:     {"x": 121.88 ,"y": 30.95 }
Scale:     0.00000501258
View bounds:

•     Left bottom: {"x": 121.82 , "y":30.89 }
•     Right top : { "x": 121.94 , "y":31.01}

•   Width: 256
•   Height: 256
•   PixcelCellCount: 8