UTFGrid

UTFGrid parameters:
Center:     {"x": 118.78 ,"y": 30.93 }
Scale:     0.000016789139
View bounds:

•     Left bottom: {"x": 118.76 , "y":30.91 }
•     Right top : { "x": 118.8 , "y":30.95}

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