def create_merc_elevmap(dest):
zoomlevel = 8
limitx1, limity1, limitx2, limity2 = merc_limits(zoomlevel, hd=True)
tilesizemask = tilesize - 1
#a,b=mapper.latlon2merc((61,15),zoomlevel)
#limitx1,limity1=int(a),int(b)
#limity1=int(19000)
#limity2=limity1+tilesize*16
#limitx1=int(35000)
#limitx2=limitx1+tilesize*16
#tilesizemask=tilesize-1
#limitx1&=~tilesizemask
#limity1&=~tilesizemask
#limitx2&=~tilesizemask
#limity2&=~tilesizemask
assert (limitx1 & tilesizemask) == 0
assert (limity1 & tilesizemask) == 0
assert (limitx2 & tilesizemask) == 0
assert (limity2 & tilesizemask) == 0
if os.path.exists(dest):
os.unlink(dest)
blob = BlobFile(dest,
zoomlevel,
limitx1,
limity1,
limitx2,
limity2,
"w",
tilesize=tilesize)
for by in xrange(limity1, limity2, tilesize):
for bx in xrange(limitx1, limitx2, tilesize):
f = StringIO()
for y in xrange(tilesize):
for x in xrange(tilesize):
mx = bx + x
my = by + y
latlon = mapper.merc2latlon((mx, my), zoomlevel)
elev = int(get_terrain_elev(latlon))
#f.write(pack(">h",elev)) #min
f.write(pack(">h", elev)) #max
buf = f.getvalue()
assert (len(buf) == tilesize * tilesize * 2)
blob.add_tile(bx, by, buf)
print "Perc complete: %.1f%%" % (100.0 * (by - limity1) /
float(limity2 - limity1))
blob.close()
def create_merc_elevmap(dest):
zoomlevel = 8
limitx1, limity1, limitx2, limity2 = merc_limits(zoomlevel, hd=True)
tilesizemask = tilesize - 1
# a,b=mapper.latlon2merc((61,15),zoomlevel)
# limitx1,limity1=int(a),int(b)
# limity1=int(19000)
# limity2=limity1+tilesize*16
# limitx1=int(35000)
# limitx2=limitx1+tilesize*16
# tilesizemask=tilesize-1
# limitx1&=~tilesizemask
# limity1&=~tilesizemask
# limitx2&=~tilesizemask
# limity2&=~tilesizemask
assert (limitx1 & tilesizemask) == 0
assert (limity1 & tilesizemask) == 0
assert (limitx2 & tilesizemask) == 0
assert (limity2 & tilesizemask) == 0
if os.path.exists(dest):
os.unlink(dest)
blob = BlobFile(dest, zoomlevel, limitx1, limity1, limitx2, limity2, "w", tilesize=tilesize)
for by in xrange(limity1, limity2, tilesize):
for bx in xrange(limitx1, limitx2, tilesize):
f = StringIO()
for y in xrange(tilesize):
for x in xrange(tilesize):
mx = bx + x
my = by + y
latlon = mapper.merc2latlon((mx, my), zoomlevel)
elev = int(get_terrain_elev(latlon))
# f.write(pack(">h",elev)) #min
f.write(pack(">h", elev)) # max
buf = f.getvalue()
assert len(buf) == tilesize * tilesize * 2
blob.add_tile(bx, by, buf)
print "Perc complete: %.1f%%" % (100.0 * (by - limity1) / float(limity2 - limity1))
blob.close()
def refine_merc_elevmap(src, srczoomlevel):
zoomlevel = srczoomlevel - 1
limitx1, limity1, limitx2, limity2 = merc_limits(zoomlevel, hd=True)
tilesizemask = tilesize - 1
assert (limitx1 & tilesizemask) == 0
assert (limity1 & tilesizemask) == 0
srcblob = BlobFile(src + "%d" % (srczoomlevel,), tilesize=tilesize)
trgfile = src + "%d" % (zoomlevel,)
if os.path.exists(trgfile):
os.unlink(trgfile)
trgblob = BlobFile(trgfile, zoomlevel, limitx1, limity1, limitx2, limity2, "w", tilesize=tilesize)
for by in xrange(limity1, limity2, tilesize):
# if (by-limity1)/float(limity2-limity1)>0.2:
# break
for bx in xrange(limitx1, limitx2, tilesize):
print "Perc complete: %.1f%%" % (100.0 * (by - limity1) / float(limity2 - limity1))
loout = numpy.zeros((tilesize, tilesize))
hiout = numpy.zeros((tilesize, tilesize))
for suby in xrange(2):
for subx in xrange(2):
srcx = 2 * (bx) + subx * tilesize
srcy = 2 * (by) + suby * tilesize
buf = srcblob.get_tile(srcx, srcy)
if buf == None:
buf = onebuf
print "Using onebuf"
# print "Got buf:",md5.md5(buf).hexdigest()
# print "got at %d,%d: %d bytes"%(srcx,srcy,len(buf) if buf else 0)
assert len(buf) == tilesize * tilesize * 2
fi = StringIO(buf)
# losub=numpy.zeros((tilesize,tilesize))
hisub = numpy.zeros((tilesize, tilesize))
for j in xrange(tilesize):
for i in xrange(tilesize):
# losub[j,i]=unpack(">h",fi.read(2))[0]
hisub[j, i] = unpack(">h", fi.read(2))[0]
fi.close()
del fi
tsh = tilesize / 2
for j in xrange(tilesize / 2):
for i in xrange(tilesize / 2):
def s(sub, fn):
return fn(sub[2 * j + a, 2 * i + b] for (a, b) in product(xrange(2), xrange(2)))
# losum=s(losub,min)
hisum = s(hisub, max)
# print "losum: %d from %s"%(losum,losub[2*j,2*i])
crd = (j + suby * tsh, i + subx * tsh)
# losum=suby*500+subx*2000
# hisum=suby*100+subx*500
# loout[crd]=losum
hiout[crd] = hisum
# del losub
del hisub
# print "loout:",loout
# print "hiout:",hiout
f = StringIO()
for j in xrange(tilesize):
for i in xrange(tilesize):
# f.write(pack(">h",loout[j,i])) #min
f.write(pack(">h", hiout[j, i])) # max
trgblob.add_tile(bx, by, f.getvalue())
def refine_merc_elevmap(src, srczoomlevel):
zoomlevel = srczoomlevel - 1
limitx1, limity1, limitx2, limity2 = merc_limits(zoomlevel, hd=True)
tilesizemask = tilesize - 1
assert (limitx1 & tilesizemask) == 0
assert (limity1 & tilesizemask) == 0
srcblob = BlobFile(src + "%d" % (srczoomlevel, ), tilesize=tilesize)
trgfile = src + "%d" % (zoomlevel, )
if os.path.exists(trgfile):
os.unlink(trgfile)
trgblob = BlobFile(trgfile,
zoomlevel,
limitx1,
limity1,
limitx2,
limity2,
"w",
tilesize=tilesize)
for by in xrange(limity1, limity2, tilesize):
#if (by-limity1)/float(limity2-limity1)>0.2:
# break
for bx in xrange(limitx1, limitx2, tilesize):
print "Perc complete: %.1f%%" % (100.0 * (by - limity1) /
float(limity2 - limity1))
loout = numpy.zeros((tilesize, tilesize))
hiout = numpy.zeros((tilesize, tilesize))
for suby in xrange(2):
for subx in xrange(2):
srcx = 2 * (bx) + subx * tilesize
srcy = 2 * (by) + suby * tilesize
buf = srcblob.get_tile(srcx, srcy)
if buf == None:
buf = onebuf
print "Using onebuf"
#print "Got buf:",md5.md5(buf).hexdigest()
#print "got at %d,%d: %d bytes"%(srcx,srcy,len(buf) if buf else 0)
assert (len(buf) == tilesize * tilesize * 2)
fi = StringIO(buf)
#losub=numpy.zeros((tilesize,tilesize))
hisub = numpy.zeros((tilesize, tilesize))
for j in xrange(tilesize):
for i in xrange(tilesize):
#losub[j,i]=unpack(">h",fi.read(2))[0]
hisub[j, i] = unpack(">h", fi.read(2))[0]
fi.close()
del fi
tsh = tilesize / 2
for j in xrange(tilesize / 2):
for i in xrange(tilesize / 2):
def s(sub, fn):
return fn(
sub[2 * j + a, 2 * i + b]
for (a,
b) in product(xrange(2), xrange(2)))
#losum=s(losub,min)
hisum = s(hisub, max)
#print "losum: %d from %s"%(losum,losub[2*j,2*i])
crd = (j + suby * tsh, i + subx * tsh)
#losum=suby*500+subx*2000
#hisum=suby*100+subx*500
#loout[crd]=losum
hiout[crd] = hisum
#del losub
del hisub
#print "loout:",loout
#print "hiout:",hiout
f = StringIO()
for j in xrange(tilesize):
for i in xrange(tilesize):
#f.write(pack(">h",loout[j,i])) #min
f.write(pack(">h", hiout[j, i])) #max
trgblob.add_tile(bx, by, f.getvalue())
