def add_overlays(self, *overlays):
"""Add overlay providers from strings `overlays`."""
for overlay in overlays:
try:
self.overlays.append(poor.TileSource(overlay))
self.overlays.sort(key=lambda x: x.z)
poor.conf.set_add("overlays", overlay)
self.tilecollection.clear()
except Exception as error:
print("Failed to load overlay '{}': {}"
.format(overlay, str(error)),
file=sys.stderr)
poor.conf.set_remove("overlays", overlay)
def set_basemap(self, basemap):
"""Set basemap from string `basemap`."""
try:
self.basemap = poor.TileSource(basemap)
poor.conf.basemap = basemap
self._drop_download_queues()
self.tilecollection.clear()
except Exception as error:
print("Failed to load basemap '{}': {}"
.format(basemap, str(error)),
file=sys.stderr)
if self.basemap is None:
default = poor.conf.get_default("basemap")
if default != basemap:
self.set_basemap(default)