地图级比例尺 米
178271.5169678271.52
239135.7584839135.76
319567.8792419567.88
49783.9396219783.94
54891.969814891.97
62445.9849052445.98
71222.9924531222.99
8611.4962263611.50
9305.7481131305.75
10152.8740566152.87
1176.4370282976.44
1238.2185141438.22
1319.1092570719.11
149.5546285369.55
15 4.777314268 4.78
16 2.388657134 2.39
17 1.194328567 1.19
180.5971642830.60
190.2985821420.30
200.1492910710.15计算公式: b=156543.033929687./(2.^i)