def compose_and_save(key, tile, x, y): # but this has to be done in a transaction - otherwise the different threads will overwrite each other's progress on the shared mapimage
mapimage = db.get(key)
input_tuples = [(tile.image_out(), x, y, 1.0, images.TOP_LEFT)]
if mapimage.img:
input_tuples.append((mapimage.img, 0, 0, 1.0, images.TOP_LEFT))
img = images.composite(inputs=input_tuples, width=mapimage.width, height=mapimage.height, color=0, output_encoding=images.PNG) # redraw main image every time to show progress
mapimage.img = db.Blob(img)
mapimage.tiles_remaining -= 1
mapimage.last_updated = datetime.now()
mapimage.put()
assert raw.count('/') == 6, "%d /'s" % raw.count('/')
foo, bar, layer, zoom, xy, category, metro = raw.split('/')
assert xy.count(',') == 1, "%d /'s" % xy.count(',')
x, y = xy.split(',')
assert zoom.isdigit() and x.isdigit() and y.isdigit() and category.isdigit() and metro.isdigit(), "not digits"
zoom = int(zoom)
x = int(x)
y = int(y)
category = int(category)
metro = int(metro)
assert 0 <= zoom <= (consts.MAX_ZOOM - 1), "bad zoom: %d" % zoom
except AssertionError, err:
log.error(err.args[0])
self.respondError(err)
return
else:
self.respondError("Invalid path")
return
tile = Tile(layer, zoom, x, y, category, metro)
log.info("Start-B1: %2.2f" % (time.clock() - st))
self.response.headers['Content-Type'] = "image/png"
#log.info("Building image...")
img_data = tile.image_out()
log.info("Start-B2: %2.2f" % (time.clock() - st))
#log.info("Writing out image...")
self.response.out.write(img_data)
log.info("Start-End: %2.2f" % (time.clock() - st))
assert xy.count(',') == 1, "%d /'s" % xy.count(',')
x, y = xy.split(',')
assert zoom.isdigit() and x.isdigit() and y.isdigit(
) and category.isdigit() and metro.isdigit(), "not digits"
zoom = int(zoom)
x = int(x)
y = int(y)
category = int(category)
metro = int(metro)
assert 0 <= zoom <= (consts.MAX_ZOOM -
1), "bad zoom: %d" % zoom
except AssertionError, err:
log.error(err.args[0])
self.respondError(err)
return
else:
self.respondError("Invalid path")
return
tile = Tile(layer, zoom, x, y, category, metro)
log.info("Start-B1: %2.2f" % (time.clock() - st))
self.response.headers['Content-Type'] = "image/png"
#log.info("Building image...")
img_data = tile.image_out()
log.info("Start-B2: %2.2f" % (time.clock() - st))
#log.info("Writing out image...")
self.response.out.write(img_data)
log.info("Start-End: %2.2f" % (time.clock() - st))