organicmaps/kothic
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Converter optimizations

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This commit is contained in:
Komяpa 2010-05-02 23:33:46 +03:00
parent 2d4846442e
commit 853ea3b280
1 changed files with 35 additions and 7 deletions
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42
src/osm2tiles.py
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@ -27,7 +27,7 @@ try:
except ImportError:
pass
MAXZOOM = 16
MAXZOOM = 15
proj = "EPSG:4326"
style = Styling()
@ -62,8 +62,13 @@ def pix_distance(a,b,z):
def main ():
DROPPED_POINTS = 0
WAYS_WRITTEN = 0
NODES_READ = 0
WAYS_READ = 0
tilefiles = {}
tilefiles_hist = []
osm_infile = open("minsk.osm", "rb")
osm_infile = sys.stdin
nodes = {}
curway = []
tags = {}
@ -71,12 +76,19 @@ def main ():
for action, elem in context:
items = dict(elem.items())
if elem.tag == "node":
NODES_READ += 1
if NODES_READ % 10000 == 0:
print "Nodes read:", NODES_READ
nodes[int(items["id"])] = (float(items["lon"]), float(items["lat"]))
elif elem.tag == "nd":
curway.append(nodes[int(items["ref"])])
elif elem.tag == "tag":
tags[items["k"]] = items["v"]
elif elem.tag == "way":
WAYS_READ += 1
if WAYS_READ % 1000 == 0:
print "Ways read:", WAYS_READ
mzoom = 1
if style.get_style("way", tags, True): # if way is stylized
@ -110,14 +122,30 @@ def main ():
if not os.path.exists(path):
os.makedirs(path)
tilefiles[tile] = "aaa"
tilefile = open(path+"y"+str(y)+".vtile","wb")
tilefile = open(path+"y"+str(y)+".vtile","a")
print >>tilefile, "%s %s" % (towrite, items["id"]), " ".join([str(x[0])+" "+str(x[1]) for x in way_simplified[tile[0]]])
tilefile.flush()
tilefile.close()
tilefiles[tile] = open(path+"y"+str(y)+".vtile","wb")
tilefiles_hist.append(tile)
else:
if not tilefiles[tile]:
tilefiles[tile] = open(path+"y"+str(y)+".vtile","a")
tilefiles_hist.append(tile)
tilefiles_hist.remove(tile)
tilefiles_hist.append(tile)
print >>tilefiles[tile], "%s %s" % (towrite, items["id"]), " ".join([str(x[0])+" "+str(x[1]) for x in way_simplified[tile[0]]])
if len(tilefiles_hist) > 400:
print "Cleaned up tiles. Wrote by now:", len(tilefiles),"active:",len(tilefiles_hist)
for tile in tilefiles_hist[0:len(tilefiles_hist)-100]:
tilefiles_hist.remove(tile)
tilefiles[tile].flush()
tilefiles[tile].close()
tilefiles[tile] = None
#print >>corr, "%s %s %s %s %s %s"% (curway[0][0],curway[0][1],curway[1][0],curway[1][1], user, ts )
WAYS_WRITTEN += 1
if WAYS_WRITTEN % 10000 == 0:
print WAYS_WRITTEN
curway = []
tags = {}
#user = default_user