def initplacement(self, tls, x, y, level):
key = (x, y, level)
if key in self.placementcache:
return # was created while this task was queued
(name, url, minsize) = self.provider_url(*key)
filename = self.filecache.fetch(self.session, name, url, minsize)
if not filename:
# Couldn't fetch image
if filename is False: # Definitively unavailable
self.placementcache[key] = False
self.canvas.Refresh() # Probably wanting to know this
return
try:
if __debug__: clock = time.clock()
texdata = self.canvas.vertexcache.texcache.get(filename,
alpha=False,
wrap=False,
downsample=False,
fixsize=True,
defer=True)
except:
if __debug__: print_exc()
self.placementcache[key] = False # Couldn't load image
self.canvas.Refresh() # Probably wanting to know this
return
# Make a new placement
(north, west) = self.xy2latlon(x, y, level)
(south, east) = self.xy2latlon(x + 1, y + 1, level)
placement = DrapedImage(name, 65535, [[
Node([west, north, 0, 1]),
Node([east, north, 1, 1]),
Node([east, south, 1, 0]),
Node([west, south, 0, 0])
]])
placement.load(self.canvas.lookup, self.canvas.defs,
self.canvas.vertexcache)
if isinstance(texdata, tuple):
placement.texdata = texdata
else:
placement.definition.texture = texdata # already in the cache
if __debug__: clock = time.clock()
placement.layout(self.tile, tls=tls)
if not placement.dynamic_data.size:
if __debug__:
print "DrapedImage layout failed for %s - no tris" % placement.name
placement = False
else:
if __debug__:
print "%6.3f time in imagery read & layout for %s" % (
time.clock() - clock, placement.name)
self.canvas.Refresh(
) # Probably wanting to display this - will be allocated during OnPaint
self.placementcache[key] = placement
return
def initplacement(self, tls, x, y, level):
key = (x, y, level)
if key in self.placementcache:
return # was created while this task was queued
(name, url, minsize) = self.provider_url(*key)
filename = self.filecache.fetch(self.session, name, url, minsize)
if not filename:
# Couldn't fetch image
if filename is False: # Definitively unavailable
self.placementcache[key] = False
self.canvas.Refresh() # Probably wanting to know this
return
try:
if __debug__: clock=time.clock()
texdata = self.canvas.vertexcache.texcache.get(filename, alpha=False, wrap=False, downsample=False, fixsize=True, defer=True)
except:
if __debug__: print_exc()
self.placementcache[key] = False # Couldn't load image
self.canvas.Refresh() # Probably wanting to know this
return
# Make a new placement
(north,west) = self.xy2latlon(x, y, level)
(south,east) = self.xy2latlon(x+1, y+1, level)
placement = DrapedImage(name, 65535, [[Node([west, north, 0, 1]),
Node([east, north, 1, 1]),
Node([east, south, 1, 0]),
Node([west, south, 0, 0])]])
placement.load(self.canvas.lookup, self.canvas.defs, self.canvas.vertexcache)
if isinstance(texdata, tuple):
placement.texdata = texdata
else:
placement.definition.texture = texdata # already in the cache
if __debug__: clock=time.clock()
placement.layout(self.tile, tls=tls)
if not placement.dynamic_data.size:
if __debug__: print "DrapedImage layout failed for %s - no tris" % placement.name
placement = False
else:
if __debug__: print "%6.3f time in imagery read & layout for %s" % (time.clock()-clock, placement.name)
self.canvas.Refresh() # Probably wanting to display this - will be allocated during OnPaint
self.placementcache[key] = placement
return
