meters_per_pixel_sanity_check.py

from tilequeue.tile import coord_to_mercator_bounds
from tilequeue.tile import deserialize_coord
from tilequeue.process import _find_meters_per_pixel

coord = deserialize_coord('10/100/100')
merc_bounds = coord_to_mercator_bounds(coord)
tile_meters_wide = merc_bounds[2] - merc_bounds[0]

meters_per_pixel = _find_meters_per_pixel(10)

print 'z10 level tile meters wide: %f' % tile_meters_wide
print 'meters per pixel:           %f' % meters_per_pixel