def ProjPoint(e, n): try: x,y,z= ostn02.OSGB36_to_ETRS89(e, n) return osgb.grid_to_ll(x,y) except: #Use approximation return osgb.grid_to_ll(e,n)
def GetOsTile(tileCode = "so22nw", zoom = 12, out = None):
tileBL = osgb.os_streetview_tile_to_grid(tileCode)
tileTR = (tileBL[0]+5000, tileBL[1]+5000)
tileBR = (tileBL[0]+5000, tileBL[1])
tileTL = (tileBL[0], tileBL[1]+5000)
x,y,z= ostn02.OSGB36_to_ETRS89(*tileBL)
c1 = osgb.grid_to_ll(x,y)
x,y,z= ostn02.OSGB36_to_ETRS89(*tileTR)
c2 = osgb.grid_to_ll(x,y)
x,y,z= ostn02.OSGB36_to_ETRS89(*tileBR)
c3 = osgb.grid_to_ll(x,y)
x,y,z= ostn02.OSGB36_to_ETRS89(*tileTL)
c4 = osgb.grid_to_ll(x,y)
lat = [c1[0], c2[0], c3[0], c4[0]]
lon = [c1[1], c2[1], c3[1], c4[1]]
minLat, maxLat = min(lat), max(lat)
minLon, maxLon = min(lon), max(lon)
tilex1, tiley1 = slippytiles.deg2num(maxLat, minLon, zoom)
tilex2, tiley2 = slippytiles.deg2num(minLat, maxLon, zoom)
tilePath = "/home/tim/dev/batch-garmin-map/{0}/{1}/{2}.osm.bz2"
fileList = []
for x in range(tilex1, tilex2+1):
for y in range(tiley1, tiley2+1):
fina = tilePath.format(zoom, x, y)
print x, y, fina
if os.path.isfile(fina):
fileList.append(fina)
mergeTiles.MergeFiles(fileList, out)
def ProjPoint(e, n): x,y,z= ostn02.OSGB36_to_ETRS89(e, n) return osgb.grid_to_ll(x,y)