[OSM-dev] Lite OSM backend
Wollschaf
mith at uni.de
Thu Sep 7 23:15:45 BST 2006
Guessing is good, counting is better.
Analysis of planet-060827.osm reveals: 1.29% (174208) of the nodes are at
latitudes are above 58°; Each of these nodes can be saved with 1 bit
precision less, resulting in 21 KiB saved space.
At least it was fun to generate the graphs. :)
Graph: http://wiki.openstreetmap.org/index.php/Image:Nodes_by_lat.png
13471435 nodes
0.00% (86) at lat -41
0.00% (409) at lat -39
0.00% (316) at lat -38
0.00% (284) at lat -37
0.01% (980) at lat -36
0.02% (3284) at lat -35
0.04% (6042) at lat -34
0.11% (14583) at lat -33
0.00% (16) at lat -30
0.00% (129) at lat -28
0.12% (16119) at lat -27
0.01% (1348) at lat -26
0.00% (499) at lat -23
0.00% (50) at lat -22
0.00% (39) at lat -19
0.00% (16) at lat 8
0.01% (748) at lat 14
0.00% (324) at lat 15
0.00% (230) at lat 16
0.01% (1088) at lat 17
0.00% (96) at lat 19
0.00% (313) at lat 22
0.12% (16700) at lat 28
4.52% (609508) at lat 29
5.33% (717374) at lat 30
12.44% (1675600) at lat 31
7.16% (963943) at lat 32
10.10% (1360518) at lat 33
3.99% (537820) at lat 34
0.31% (42331) at lat 35
0.09% (12549) at lat 36
4.12% (555194) at lat 37
10.03% (1351297) at lat 38
11.98% (1614405) at lat 39
0.90% (121712) at lat 40
1.83% (246747) at lat 41
1.08% (145726) at lat 42
0.89% (119732) at lat 43
0.39% (52049) at lat 44
1.48% (199350) at lat 45
1.51% (203883) at lat 46
12.74% (1716026) at lat 47
1.32% (177254) at lat 48
0.42% (56500) at lat 49
0.78% (104678) at lat 50
1.43% (192329) at lat 51
1.09% (146259) at lat 52
0.76% (101820) at lat 53
0.29% (39121) at lat 54
0.38% (51774) at lat 55
0.20% (26406) at lat 56
0.16% (22046) at lat 57
0.52% (69561) at lat 58
0.53% (70913) at lat 59
0.23% (31299) at lat 60
0.09% (11592) at lat 61
0.07% (9027) at lat 62
0.06% (8370) at lat 63
0.07% (9759) at lat 64
0.07% (8993) at lat 65
0.06% (7750) at lat 66
0.03% (3472) at lat 67
0.06% (8606) at lat 68
0.03% (3845) at lat 69
0.00% (582) at lat 70
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