def add_mapbox_layer(self,
layer_name=False,
mapbox_json_path=False,
layer_icon='fa fa-globe',
is_basemap=False):
if layer_name != False and mapbox_json_path != False:
with open(mapbox_json_path) as data_file:
data = json.load(data_file)
with transaction.atomic():
for layer in data['layers']:
if 'source' in layer:
layer[
'source'] = layer['source'] + '-' + layer_name
for source_name, source_dict in data['sources'].iteritems(
):
map_source = models.MapSource.objects.get_or_create(
name=source_name + '-' + layer_name,
source=source_dict)
map_layer = models.MapLayer(
name=layer_name,
layerdefinitions=data['layers'],
isoverlay=(not is_basemap),
icon=layer_icon)
try:
map_layer.save()
except IntegrityError as e:
print "Cannot save layer: {0} already exists".format(
layer_name)
def add_tileserver_layer(self,
layer_name=False,
mapnik_xml_path=False,
layer_icon='fa fa-globe',
is_basemap=False,
tile_config_path=False):
if layer_name != False:
config = None
extension = "png"
layer_type = "raster"
tile_size = 256
if mapnik_xml_path != False:
path = os.path.abspath(mapnik_xml_path),
config = {
"provider": {
"name": "mapnik",
"mapfile": os.path.abspath(mapnik_xml_path)
}
}
layer_list = [{
"id": layer_name,
"type": "raster",
"source": layer_name,
"minzoom": 0,
"maxzoom": 22
}]
elif tile_config_path != False:
path = os.path.abspath(tile_config_path)
with open(path) as content:
config_data = json.load(content)
config = config_data["config"]
layer_type = config_data["type"]
layer_list = config_data["layers"]
for layer in layer_list:
layer["source"] = layer_name
if layer_type == "vector":
layer["source-layer"] = layer_name
if layer_type == "vector":
extension = "pbf"
tile_size = 512
if config is not None:
with transaction.atomic():
tileserver_layer = models.TileserverLayer(name=layer_name,
path=path,
config=config)
source_dict = {
"type":
layer_type,
"tiles": [("/tileserver/%s/{z}/{x}/{y}.%s") %
(layer_name, extension)],
"tileSize":
tile_size
}
try:
map_source = models.MapSource(name=layer_name,
source=source_dict)
map_layer = models.MapLayer(
name=layer_name,
layerdefinitions=layer_list,
isoverlay=(not is_basemap),
icon=layer_icon)
map_source.save()
map_layer.save()
tileserver_layer.map_layer = map_layer
tileserver_layer.map_source = map_source
tileserver_layer.save()
except IntegrityError as e:
print "Cannot save tile server layer: {0} already exists".format(
layer_name)