def heightmap_tiles_near(routes, dist_nm):
tilesize = 64
zoomlevel = 8
tiles_on_levels = dict()
tottiles = 0
while zoomlevel >= 0:
path = os.path.join(os.getenv("SWFP_DATADIR"),
"tiles/elev/level%d" % (zoomlevel))
blob = BlobFile(path, tilesize=tilesize)
def cm(latlonstr, zoomlevel):
return clampmerc(
mapper.latlon2merc(mapper.from_str(latlonstr), zoomlevel))
resultset = get_all_tiles_near(routes, zoomlevel, dist_nm, tilesize)
result = dict()
for merc in resultset:
result[merc] = blob.get_tile(*merc)
tottiles += len(result)
tiles_on_levels[zoomlevel] = result
zoomlevel -= 1
return tiles_on_levels
def map_tiles_near(routes, dist_nm):
tilesize = 256
zoomlevel = 7
tiles_on_levels = dict()
tottiles = 0
path = os.path.join(os.getenv("SWFP_DATADIR"),
"tiles/elev/level%d" % (zoomlevel))
blob = BlobFile(path, tilesize=tilesize)
def cm(latlonstr, zoomlevel):
return clampmerc(
mapper.latlon2merc(mapper.from_str(latlonstr), zoomlevel))
resultset = get_all_tiles_near(routes, zoomlevel, dist_nm, tilesize)
result = dict()
for merc in resultset:
rawtile = blob.get_tile(*merc)
io = StringIO.StringIO(rawtile)
io.seek(0)
im = Image.open(io)
x, y = merc
print "Map merc ", merc
x %= 512
y %= 512
if x >= 256:
im = im.transpose(Image.FLIP_LEFT_RIGHT)
print "X-flipping"
else:
print "Not X-flipping"
if y >= 256:
im = im.transpose(Image.FLIP_TOP_BOTTOM)
print "Y-flippin'"
else:
print "Not Y-flippin'"
buf = StringIO.StringIO()
im.save(buf, "png")
png = buf.getvalue()
result[merc] = png
tottiles += len(result)
tiles_on_levels[zoomlevel] = result
return tiles_on_levels
def map_tiles_near(routes,dist_nm):
tilesize=256
zoomlevel=7
tiles_on_levels=dict()
tottiles=0
path=os.path.join(os.getenv("SWFP_DATADIR"),"tiles/elev/level%d"%(zoomlevel))
blob=BlobFile(path,tilesize=tilesize)
def cm(latlonstr,zoomlevel):
return clampmerc(mapper.latlon2merc(mapper.from_str(latlonstr),zoomlevel))
resultset=get_all_tiles_near(routes,zoomlevel,dist_nm,tilesize)
result=dict()
for merc in resultset:
rawtile=blob.get_tile(*merc)
io=StringIO.StringIO(rawtile)
io.seek(0)
im=Image.open(io)
x,y=merc
print "Map merc ",merc
x%=512
y%=512
if x>=256:
im=im.transpose(Image.FLIP_LEFT_RIGHT)
print "X-flipping"
else:
print "Not X-flipping"
if y>=256:
im=im.transpose(Image.FLIP_TOP_BOTTOM)
print "Y-flippin'"
else:
print "Not Y-flippin'"
buf=StringIO.StringIO()
im.save(buf,"png")
png=buf.getvalue()
result[merc]=png
tottiles+=len(result)
tiles_on_levels[zoomlevel]=result
return tiles_on_levels
def heightmap_tiles_near(routes,dist_nm):
tilesize=64
zoomlevel=8
tiles_on_levels=dict()
tottiles=0
while zoomlevel>=0:
path=os.path.join(os.getenv("SWFP_DATADIR"),"tiles/elev/level%d"%(zoomlevel))
blob=BlobFile(path,tilesize=tilesize)
def cm(latlonstr,zoomlevel):
return clampmerc(mapper.latlon2merc(mapper.from_str(latlonstr),zoomlevel))
resultset=get_all_tiles_near(routes,zoomlevel,dist_nm,tilesize)
result=dict()
for merc in resultset:
result[merc]=blob.get_tile(*merc)
tottiles+=len(result)
tiles_on_levels[zoomlevel]=result
zoomlevel-=1
return tiles_on_levels