Add style to every layer based on IGN themes.

bd_topo_extractor/__about__.py

@@ -97,6 +97,8 @@ def plugin_metadata_as_dict() -> dict:
 __wfs_schema__: str = __plugin_md__.get("wfs").get("schema")
 __wfs_crs__: str = __plugin_md__.get("wfs").get("crs")
 __wfs_geometry__: str = __plugin_md__.get("wfs").get("geometry")
+__wfs_style__: str = __plugin_md__.get("wfs").get("style")
+__wfs_layer_order__: str = __plugin_md__.get("wfs").get("layer_order")
 __wfs_metadata__: str = __plugin_md__.get("wfs").get("metadata")
 __wfs_credit__: str = __plugin_md__.get("wfs").get("producer")
 __wfs_logo__: Path = DIR_PLUGIN_ROOT.resolve() / __plugin_md__.get("wfs").get("logo")

bd_topo_extractor/metadata.txt

@@ -27,6 +27,8 @@ changelog=
     1.0.0 sphinx documentation, add metadata variable for schema, geometry column and crs.
     1.0.1 crs correction.
     1.0.2 crs correction for area calculation, adding a gif when export is loading
+    1.1.0 add group by themes and style created by IGN.
+
 
 [wfs]
 plugin_name=BD_TOPO_Extractor
@@ -35,6 +37,8 @@ uri=https://data.geopf.fr/wfs/ows
 schema=BDTOPO_V3
 geometry=geometrie
 crs=4326
-metadata=https://geoservices.ign.fr/bdtopo
+style=true
+layer_order={"TRANSPORT": {"TRONCON_DE_ROUTE": "0", "ROUTE_NUMEROTEE_OU_NOMMEE": "1", "TRONCON_DE_VOIE_FERREE": "2", "EQUIPEMENT_DE_TRANSPORT": "3", "PISTE_D_AERODROME": "4", "AERODROME": "5", "POINT_DE_REPERE": "6", "NON_COMMUNICATION": "7", "POINT_DU_RESEAU": "8", "TRANSPORT_PAR_CABLE": "9", "VOIE_FERREE_NOMMEE": "10", "TOPONYMIE_TRANSPORT": "11"}, "BATI": {"BATIMENT": "0", "CIMETIERE": "1", "CONSTRUCTION_PONCTUELLE": "2", "CONSTRUCTION_LINEAIRE": "3", "CONSTRUCTION_SURFACIQUE": "4", "RESERVOIR": "5", "LIGNE_OROGRAPHIQUE": "6", "PYLONE": "7", "TERRAIN_DE_SPORT": "8", "TOPONYMIE_BATI": "9"}, "LIEUX_NOMMEES": {"DETAIL_OROGRAPHIQUE": "0", "ZONE_D_HABITATION": "1", "LIEU_DIT_NON_HABITE": "2", "TOPONYMIE_LIEUX_NOMMES": "3"}, "SERVICES_ET_ACTIVITES": {"CANALISATION": "0", "LIGNE_ELECTRIQUE": "1", "POSTE_DE_TRANSFORMATION": "2", "ERP": "3", "ZONE_D_ACTIVITE_OU_D_INTERET": "4", "TOPONYMIE_SERVICES_ET_ACTIVITES": "5"}, "ADMINISTRATIF": {"ARRONDISSEMENT_MUNICIPAL": "0", "COMMUNE": "1", "COMMUNE_ASSOCIEE_OU_DELEGUEE": "2", "ARRONDISSEMENT": "3", "CONDOMINIUM": "4", "DEPARTEMENT": "5", "COLLECTIVITE_TERRITORIALE": "6", "EPCI": "7", "REGION": "8"}, "HYDROGRAPHIE": {"COURS_D_EAU": "0", "TRONCON_HYDROGRAPHIQUE": "1", "SURFACE_HYDROGRAPHIQUE": "2", "PLAN_D_EAU": "3", "DETAIL_HYDROGRAPHIQUE": "4", "LIMITE_TERRE_MER": "5", "NOEUD_HYDROGRAPHIQUE": "6", "BASSIN_VERSANT_TOPOGRAPHIQUE": "7", "TOPONYMIE_HYDROGRAPHIE": "8"}, "ZONES_REGLEMENTEES": {"PARC_OU_RESERVE": "0", "FORET_PUBLIQUE": "1", "TOPONYMIE_ZONES_REGLEMENTEES": "2"}, "OCCUPATION_DU_SOL": {"HAIE": "0", "ZONE_DE_VEGETATION": "1", "ZONE_D_ESTRAN": "2"}, "ORDER": {"TRANSPORT": "0", "BATI": "1", "LIEUX_NOMMEES": "2", "SERVICES_ET_ACTIVITES": "3", "ADMINISTRATIF": "4", "HYDROGRAPHIE": "5", "ZONES_REGLEMENTEES": "6", "OCCUPATION_DU_SOL": "7"}}
+metadata=https://geoservices.ign.fr/bd-topor-explorer-descriptif-de-contenu
 producer=https://www.ign.fr/
 logo=resources/images/logo.png

bd_topo_extractor/plugin_main.py

@@ -9,6 +9,7 @@
 from pathlib import Path
 import datetime
 import os.path
+import json
 
 # PyQGIS
 from qgis.core import (
@@ -38,6 +39,8 @@
     __wfs_uri__,
     __wfs_name__,
     __uri_tracker__,
+    __wfs_layer_order__,
+    __wfs_style__,
 )
 from bd_topo_extractor.gui.dlg_settings import PlgOptionsFactory
 
@@ -324,7 +327,30 @@ def processing(self):
                     ):
                         self.project.instance().addMapLayer(
                             request.final_layer, False)
-                        group.addLayer(request.final_layer)
+                        # If styled layer are set to true in metadata.txt, a specific style is applied to every layer.
+                        if __wfs_style__:
+                            # style name is based on layer name in uppercase with underscore instead of spaces and single quotes
+                            style_name = str(request.final_layer.name()).replace("'", "_").replace(" ", "_").upper()
+                            layer_order_dict = json.loads(__wfs_layer_order__)
+                            # the layer are ordered based on a dictionnary with theme as key.
+                            for elem in layer_order_dict:
+                                if style_name in list(layer_order_dict[elem].keys()):
+                                    theme = self.project.instance().layerTreeRoot().findGroup(elem)
+                                    # if the theme doesn't exists it is created.
+                                    if not theme:
+                                        group.insertGroup(int(layer_order_dict['ORDER'][elem]), elem)
+                                        theme = self.project.instance().layerTreeRoot().findGroup(elem)
+                            theme.addLayer(request.final_layer)
+                            style_name_ext = style_name + ".qml"
+                            style_path: Path = (
+                                DIR_PLUGIN_ROOT / f'{"resources/styles"}' / f'{style_name_ext}')
+                            # if the style exists it is added to the layer.
+                            if os.path.isfile(style_path.__str__()):
+                                request.final_layer.loadNamedStyle(style_path.__str__())
+                            else:
+                                print("ERROR : style " + str(style_name_ext) + " doesn't exists.")
+                        else:
+                            group.addLayer(request.final_layer)
 
                 # Increase the ProgressBar value
                 n = n + 1