def add_layer_to_map(ds):
layers4add = []
if ds.type.lower() == KNOWN_DRIVERS.TMS.lower():
service_info = TileServiceInfo(tr(ds.alias), ds.copyright_text,
ds.tms_url)
service_info.zmin = ds.tms_zmin or service_info.zmin
service_info.zmax = ds.tms_zmax or service_info.zmax
if ds.tms_y_origin_top is not None:
service_info.yOriginTop = ds.tms_y_origin_top
service_info.epsg_crs_id = ds.tms_epsg_crs_id
service_info.postgis_crs_id = ds.tms_postgis_crs_id
service_info.custom_proj = ds.tms_custom_proj
if ds.tms_tile_ranges is not None: # needs try block & checks that keys are integers etc..
service_info.tile_ranges = ast.literal_eval(ds.tms_tile_ranges)
if ds.tms_tsize1 is not None:
service_info.tsize1 = ds.tms_tsize1
if ds.tms_origin_x is not None:
service_info.originX = ds.tms_origin_x
if ds.tms_origin_y is not None:
service_info.originY = ds.tms_origin_y
layer = TileLayer(service_info, False)
layers4add.append(layer)
if ds.type.lower() == KNOWN_DRIVERS.GDAL.lower():
layer = QgsRasterLayer(ds.gdal_source_file, tr(ds.alias))
layers4add.append(layer)
if ds.type.lower() == KNOWN_DRIVERS.WMS.lower():
qgis_wms_uri = u''
if ds.wms_params:
qgis_wms_uri += ds.wms_params
if ds.wms_layers:
layers = ds.wms_layers.split(',')
if layers:
if ds.wms_turn_over:
layers.reverse()
qgis_wms_uri += '&layers=' + '&layers='.join(
layers) + '&styles=' * len(layers)
qgis_wms_uri += '&url=' + ds.wms_url
layer = QgsRasterLayer(qgis_wms_uri, tr(ds.alias),
KNOWN_DRIVERS.WMS.lower())
layers4add.append(layer)
if ds.type.lower() == KNOWN_DRIVERS.WFS.lower():
qgis_wfs_uri_base = ds.wfs_url
o = urlparse.urlparse(qgis_wfs_uri_base)
request_attrs = dict(urlparse.parse_qsl(o.query))
layers_str = request_attrs.get('TYPENAME', '')
layers = layers_str.split(',')
for layer_name in layers:
new_request_attrs = request_attrs
new_request_attrs['TYPENAME'] == layer_name
url_parts = list(o)
url_parts[4] = "&".join(
["%s=%s" % (k, v) for k, v in new_request_attrs.items()])
qgis_wfs_uri = urlparse.urlunparse(url_parts)
layer = QgsVectorLayer(qgis_wfs_uri,
"%s - %s" % (tr(ds.alias), layer_name),
"WFS")
layers4add.append(layer)
if ds.type.lower() == KNOWN_DRIVERS.GEOJSON.lower():
layer = QgsVectorLayer(ds.geojson_url, tr(ds.alias), "ogr")
layers4add.append(layer)
for layer in layers4add:
if not layer.isValid():
error_message = tr(
'Layer %s can\'t be added to the map!') % ds.alias
iface.messageBar().pushMessage(tr('Error'),
error_message,
level=QgsMessageBar.CRITICAL)
QgsMessageLog.logMessage(error_message,
level=QgsMessageLog.CRITICAL)
else:
# Set attribs
layer.setAttribution(ds.copyright_text)
layer.setAttributionUrl(ds.copyright_link)
# Insert layer
toc_root = QgsProject.instance().layerTreeRoot()
if ds.type.lower() in (KNOWN_DRIVERS.WMS.lower(),
KNOWN_DRIVERS.TMS.lower()):
position = len(
toc_root.children()) # Insert to bottom if wms\tms
else:
position = 0 # insert to top
QgsMapLayerRegistry.instance().addMapLayer(layer, False)
toc_root.insertLayer(position, layer)
# Save link
service_layers.append(layer)
# Set OTF CRS Transform for map
if PluginSettings.enable_otf_3857(
) and ds.type == KNOWN_DRIVERS.TMS:
iface.mapCanvas().setCrsTransformEnabled(True)
iface.mapCanvas().setDestinationCrs(TileLayer.CRS_3857)
