UTFGrid

UTFGrid parameters:
Center:     {"x": 121.65 ,"y": 45.94 }
Scale:     0.000001008335
View bounds:

•     Left bottom: {"x": 121.35 , "y":45.64 }
•     Right top : { "x": 121.95 , "y":46.24}

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