UTFGrid

UTFGrid parameters:
Center:     {"x": 120.56 ,"y": 30.08 }
Scale:     0.000006886819
View bounds:

•     Left bottom: {"x": 120.52 , "y":30.03 }
•     Right top : { "x": 120.61 , "y":30.12}

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