import math
from pprint import pprint
-def queue_render(db,filename):
+def queue_render(db,filename,forced_max_zoom=None):
conn = sqlite3.connect(db)
cur = conn.cursor()
cur.execute("select minlat,minlon,maxlat,maxlon from tracks where filename=?" , (filename.decode('UTF-8'),))
minlat,minlon,maxlat,maxlon=cur.fetchone()
- queue_tiles(db,minlat,minlon,maxlat,maxlon)
+ queue_tiles(db,minlat,minlon,maxlat,maxlon,forced_max_zoom)
+
+def deg2num(lat_deg, lon_deg, zoom):
+ lat_rad = math.radians(lat_deg)
+ n = 2.0 ** zoom
+ xtile = int((lon_deg + 180.0) / 360.0 * n)
+ ytile = int((1.0 - math.log(math.tan(lat_rad) + (1 / math.cos(lat_rad))) / math.pi) / 2.0 * n)
+ return (xtile, ytile)
def queue_tiles(db,minlat,minlon,maxlat,maxlon,forced_max_zoom=None):
conn = sqlite3.connect(db)
# определяем примерный стартовый зум
-
- minlatrad = math.radians(minlat)
- maxlatrad = math.radians(maxlat)
-
- minx = (minlon + 180.0)/360.0
- maxx = (maxlon + 180.0)/360.0
-
- miny = (1.0 - math.log(math.tan(minlatrad) + (1 / math.cos(minlatrad))) / math.pi) / 2.0
- maxy = (1.0 - math.log(math.tan(maxlatrad) + (1 / math.cos(maxlatrad))) / math.pi) / 2.0
- if minx>maxx:
- minx,maxx = maxx,minx
-
- if miny>maxy:
- miny,maxy = maxy,miny
-
- minzoom=9
+ minzoom=8
+
if forced_max_zoom:
maxzoom=forced_max_zoom
else:
- maxzoom=16
-
- for zoom in range(minzoom,maxzoom+1):
-
- n = 2 ** zoom
-
- minxt = int(minx * n)
- minyt = int(miny * n)
- maxxt = int(maxx * n)
- maxyt = int(maxy * n)
-
- ins = conn.cursor()
- print zoom,minxt,maxxt,minyt,maxyt
- ins.execute('insert into render_queue(zoom,minx,maxx,miny,maxy) values(?,?,?,?,?)',(zoom,minxt,maxxt,minyt,maxyt))
-
- if not forced_max_zoom:
- if (maxxt-minxt>16) or (maxyt-minyt>12):
- conn.commit()
+ maxzoom=minzoom
+ while True:
+ minx,miny=deg2num(minlat,minlon,maxzoom)
+ maxx,maxy=deg2num(maxlat,maxlon,maxzoom)
+
+ print maxzoom,':',minx,'-',maxx,'/',miny,'-',maxy
+ if (maxx-minx>16) or (maxy-miny>12) or (maxzoom==16):
break
+ else:
+ maxzoom=maxzoom+1
+
+ if maxzoom<minzoom:
+ minzoom=maxzoom
+
+ ins = conn.cursor()
+ print minlat,minlon,maxlat,maxlon,minzoom,maxzoom
+ ins.execute('insert into render_queue(minlat,maxlat,minlon,maxlon,minzoom,maxzoom) values(?,?,?,?,?,?)',(minlat,maxlat,minlon,maxlon,minzoom,maxzoom))
conn.commit()
-def process_queue(db,map):
+def process_queue(db,map,force=False,backend="renderd"):
from os import system
conn = sqlite3.connect(db)
cur = conn.cursor()
- cur.execute('select id,zoom,minx,maxx,miny,maxy from render_queue')
+ cur.execute('select id,minlat,maxlat,minlon,maxlon,minzoom,maxzoom from render_queue')
list=cur.fetchall()
for rec in list:
- id,zoom,minx,maxx,miny,maxy=rec
+ id,minlat,maxlat,minlon,maxlon,minzoom,maxzoom=rec
+
+ if backend == "tirex" or backend == "default":
+
+ command = 'map='+map+ \
+ ' z='+str(minzoom)+'-'+str(maxzoom)+ \
+ ' lat='+str(minlat)+','+str(maxlat)+ \
+ ' lon='+str(minlon)+','+str(maxlon)
+
+ if force:
+ command = 'tirex-batch -n 0 --prio=50 '+command
+ else:
+ command = 'tirex-batch -n 0 --prio=50 '+command+' -f not-exists'
+
+ print command
+
+ if system(command)==0:
+ dcur=conn.cursor()
+ dcur.execute('delete from render_queue where id=?',(id,))
+ conn.commit()
+
+ elif backend == "renderd":
+
+ print minlat,minlon,maxlat,maxlon
+
+ for zoom in range(minzoom,maxzoom+1):
+ minx,miny=deg2num(minlat,minlon,zoom)
+ maxx,maxy=deg2num(maxlat,maxlon,zoom)
+
+ if minx>maxx:
+ tx=minx
+ maxx=minx
+ minx=tx
+
+ if miny>maxy:
+ ty=miny
+ maxy=miny
+ miny=ty
+
+ print zoom,minx,miny,maxx,maxy
+
+ maps = map.split(',')
+
+ for map_name in maps:
+
+ command = 'render_list -a -m '+map+ \
+ ' -z '+str(zoom)+' -Z '+str(zoom)+ \
+ ' -x '+str(minx)+' -X '+str(maxx)+ \
+ ' -y '+str(miny)+' -Y '+str(maxy)
+ if force:
+ command = command+ ' --force'
+
+ print command
+
+ if system(command)<>0:
+ return
- command = 'render_list -a -m '+map+ \
- ' -z '+str(zoom)+' -Z '+str(zoom)+ \
- ' -x '+str(minx)+' -X '+str(maxx)+ \
- ' -y '+str(miny)+' -Y '+str(maxy)
- if system(command)==0:
dcur=conn.cursor()
dcur.execute('delete from render_queue where id=?',(id,))
conn.commit()
help="Data directory", metavar="DIR")
parser.add_option("-m", "--map", dest="map",
help="Map name", metavar="MAP")
+ parser.add_option("-z", "--zoom", dest="zoom",
+ help="Maximal zoom (forced), used with coordinates pairs (minlat minlon maxlat maxlon) or filename in arguments", metavar="MAP")
+ parser.add_option("-f", "--force", dest="force",
+ help="Force tile regeneration (on/off), default off")
+ parser.add_option("-r", "--renderer", dest="renderer",
+ help="Rendering backend: tirex or renderd")
(options, args) = parser.parse_args()
db=options.directory+'/gpx.db'
map=options.map
+ zoom=options.zoom
+ if not zoom:
+ zoom=12
+ force=(options.force=='on')
- process_queue(db,map)
+ if options.renderer:
+ renderer=options.renderer
+ else:
+ print "Using default rendering backend..."
+ renderer="default"
+
+ if len(args)==1:
+ filename,=args
+ print "Rendering file: "+filename+"\n"
+ queue_render(db,filename)
+ elif len(args)==4:
+ minlat,minlon,maxlat,maxlon=args
+ print "Rendering region "+minlat+'..'+maxlat+' / '+minlon+'..'+maxlon+"\n"
+ queue_tiles(db,float(minlat),float(minlon),float(maxlat),float(maxlon),int(zoom))
+
+ if map:
+ print "Processing map(s) "+map+"\n"
+ process_queue(db,map,force,renderer)
if __name__ == "__main__":
projects / pyrungps.git / blobdiff