# create a range of descending zoomlevels
zoomlevels = range(upperzoom,lowerzoom,-1)
# track number of tiles
N = 0
# loop through zoom levels
for j in range(len(zoomlevels)):
level = zoomlevels[j]
# grab correct quadkey string based on zoom level
data.loc[:,'quadkey'] = data['quadkey'].map(lambda x: x[0:level])
# group dataframe by quadkey
groups = data.groupby('quadkey')
# get list of unique quadkeys and length
quadtree = data['quadkey'].unique()
tiles = tiles.union(set(quadtree))
n = len(quadtree)
# loop through quadkeys
for i in range(comm.rank, n, comm.size): # line 3
quadkey = quadtree[i]
# generate tile function, 1 means append to tile
tile.generate_tile(groups.get_group(quadkey), quadkey, level, 1, int(state_fips) )
# line 4
comm.Barrier()
if comm.rank == 0:
t6 = time.time()
print("Creating {} png files took {:.1f}s".format(len(tiles),t6-t5))
print("Total time {:.1f}".format(t6-start_time))
print("")
# create a range of descending zoomlevels
zoomlevels = range(upperzoom,lowerzoom,-1)
# track number of tiles
N = 0
# line 2
comm = MPI.COMM_WORLD
# loop through zoom levels
for j in range(comm.rank, len(zoomlevels), comm.size): # line 3
level = zoomlevels[j]
# grab correct quadkey string based on zoom level
data.loc[:,'quadkey'] = data['quadkey'].map(lambda x: x[0:level])
# group dataframe by quadkey
groups = data.groupby('quadkey')
# get list of unique quadkeys and length
quadtree = data['quadkey'].unique()
n = len(quadtree)
# loop through quadkeys
for i in range(n):
quadkey = quadtree[i]
# generate tile function
tile.generate_tile(groups.get_group(quadkey), quadkey, level)
# keep count of tiles
N += n
# line 4
comm.Barrier()
t3 = time.time()
print("Creating {} png files took {:.1f}s".format(N,t3-t2))
print("Total time {:.1f}".format(t3-t0))
