# -*- coding: utf-8 -*- """ /*************************************************************************** Orientation A QGIS plugin Réaliser des cartes d’orientation Generated by Plugin Builder: http://g-sherman.github.io/Qgis-Plugin-Builder/ ------------------- begin : 2021-03-01 git sha : $Format:%H$ copyright : (C) 2021 by Association Linux-Alpes email : caliec@linux-alpes.org ***************************************************************************/ /*************************************************************************** * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * * (at your option) any later version. * * * ***************************************************************************/ """ from qgis.PyQt.QtCore import Qt, QSettings, QTranslator, QCoreApplication from qgis.PyQt.QtGui import QIcon from qgis.PyQt.QtWidgets import QAction, qApp, QFileDialog, QProgressBar, QMessageBox from qgis.core import QgsCoordinateReferenceSystem, QgsProject, QgsVectorFileWriter, QgsVectorLayer, QgsFeatureRequest from processing import QgsProcessingException # Initialize Qt resources from file resources.py from .resources import * import processing import os.path import shutil import tempfile from pathlib import Path from processing.tools import dataobjects class Orientation: """QGIS Plugin Implementation.""" def __init__(self, iface): """Constructor. :param iface: An interface instance that will be passed to this class which provides the hook by which you can manipulate the QGIS application at run time. :type iface: QgsInterface """ # Save reference to the QGIS interface self.iface = iface # initialize plugin directory self.plugin_dir = os.path.dirname(__file__) # initialize locale locale = QSettings().value('locale/userLocale')[0:2] locale_path = os.path.join( self.plugin_dir, 'i18n', 'Orientation_{}.qm'.format(locale)) if os.path.exists(locale_path): self.translator = QTranslator() self.translator.load(locale_path) QCoreApplication.installTranslator(self.translator) # Declare instance attributes self.actions = [] self.menu = self.tr(u'&CaLiÉc') # Check if plugin was started the first time in current QGIS session # Must be set in initGui() to survive plugin reloads self.first_start = None # noinspection PyMethodMayBeStatic def tr(self, message): """Get the translation for a string using Qt translation API. We implement this ourselves since we do not inherit QObject. :param message: String for translation. :type message: str, QString :returns: Translated version of message. :rtype: QString """ # noinspection PyTypeChecker,PyArgumentList,PyCallByClass return QCoreApplication.translate('Orientation', message) def add_action( self, icon_path, text, callback, enabled_flag=True, add_to_menu=True, add_to_toolbar=True, status_tip=None, whats_this=None, parent=None): """Add a toolbar icon to the toolbar. :param icon_path: Path to the icon for this action. Can be a resource path (e.g. ':/plugins/foo/bar.png') or a normal file system path. :type icon_path: str :param text: Text that should be shown in menu items for this action. :type text: str :param callback: Function to be called when the action is triggered. :type callback: function :param enabled_flag: A flag indicating if the action should be enabled by default. Defaults to True. :type enabled_flag: bool :param add_to_menu: Flag indicating whether the action should also be added to the menu. Defaults to True. :type add_to_menu: bool :param add_to_toolbar: Flag indicating whether the action should also be added to the toolbar. Defaults to True. :type add_to_toolbar: bool :param status_tip: Optional text to show in a popup when mouse pointer hovers over the action. :type status_tip: str :param parent: Parent widget for the new action. Defaults None. :type parent: QWidget :param whats_this: Optional text to show in the status bar when the mouse pointer hovers over the action. :returns: The action that was created. Note that the action is also added to self.actions list. :rtype: QAction """ icon = QIcon(icon_path) action = QAction(icon, text, parent) action.triggered.connect(callback) action.setEnabled(enabled_flag) if status_tip is not None: action.setStatusTip(status_tip) if whats_this is not None: action.setWhatsThis(whats_this) if add_to_toolbar: # Adds plugin icon to Plugins toolbar self.iface.addToolBarIcon(action) if add_to_menu: self.iface.addPluginToMenu( self.menu, action) self.actions.append(action) return action def initGui(self): """Create the menu entries and toolbar icons inside the QGIS GUI.""" icon_path = ':/plugins/caliec/icon.png' self.add_action( icon_path, text=self.tr(u'Créer le projet'), callback=self.run, parent=self.iface.mainWindow()) # will be set False in run() self.first_start = True def unload(self): """Removes the plugin menu item and icon from QGIS GUI.""" for action in self.actions: self.iface.removePluginMenu( self.tr(u'&CaLiÉc'), action) self.iface.removeToolBarIcon(action) def run(self): try: self.main() finally: self.iface.messageBar().popWidget() qApp.restoreOverrideCursor() def main(self): # Paramètres du projet tempdir = tempfile.TemporaryDirectory() styles_url = 'https://forge.chapril.org/linux_alpes/caliec/raw/branch/master/styles/' lambert93 = QgsCoordinateReferenceSystem("EPSG:2154") wgs = QgsCoordinateReferenceSystem("EPSG:4326") wgspm = QgsCoordinateReferenceSystem("EPSG:3857") scr = wgspm project = QgsProject.instance() project.setCrs(scr) options = QgsVectorFileWriter.SaveVectorOptions() options.actionOnExistingFile = QgsVectorFileWriter.CreateOrOverwriteFile options.driverName = "GPKG" context = dataobjects.createContext() context.setInvalidGeometryCheck(QgsFeatureRequest.GeometryNoCheck) # Correspondances des noms des couches et des styles: # "NOM_DE_LA_COUCHE_OSM": ("nom_du_style", "nom_du_layer") # Commenter les couches non désirées # L'ordre impacte directement l'ordre final des couches names = { #"OUTPUT_OTHER_RELATIONS": (None, "Autres"), "OUTPUT_MULTIPOLYGONS": ("multipolygon", "Surfaces"), #"OUTPUT_MULTILINESTRINGS": (None, "Multilignes"), "OUTPUT_LINES": ("linestring", "Lignes"), "OUTPUT_POINTS": ("point", "Points"), } # Vérif de l'échelle if self.iface.mapCanvas().scale() > 10000: if QMessageBox.warning(self.iface.mainWindow(), "Zone étendue", "La zone est étendue et le téléchargement risque de prendre longtemps", QMessageBox.Ok | QMessageBox.Cancel) == QMessageBox.Cancel: return # Paramétrage du dossier de travail settings = QSettings() dir = QFileDialog.getExistingDirectory(self.iface.mainWindow(), "Sélectionnez un dossier de travail", settings.value("caliec/workingDir")) if dir == "": return settings.setValue("caliec/workingDir", dir) workDir = Path(dir) # Construction de la requête overpass try: url = processing.run("quickosm:buildqueryextent", parameters={"EXTENT": self.iface.mapCanvas().extent()})["OUTPUT_URL"] except QgsProcessingException: QMessageBox.warning(self.iface.mainWindow(), "Attention", "Vous n'avez pas installé l'extension QuickOSM") return # Barre de chargement animée qApp.setOverrideCursor(Qt.WaitCursor) message_bar = self.iface.messageBar() progress_bar = QProgressBar() progress_bar.setMaximum(0) widget = message_bar.createMessage("Chargement", "Récupération des data en ligne") widget.layout().addWidget(progress_bar) message_bar.pushWidget(widget) # Téléchargement du fichier osm et création des couches osmfile = str(Path(tempdir.name) / "osm.xml") processing.run("native:filedownloader", {"URL": url, "OUTPUT": osmfile}) layers = processing.run("quickosm:openosmfile", {"FILE": osmfile}) for osm_name, style_layer_names in names.items(): style_name, layer_name = style_layer_names # On explose les champs layer = processing.run("native:explodehstorefield", parameters={"INPUT": layers[osm_name], "FIELD": "other_tags", "OUTPUT": "memory:"}, context=context)["OUTPUT"] # On enregistre le layer dans le gpkg options.layerName = layer_name code, error = QgsVectorFileWriter.writeAsVectorFormat(layer, str(workDir / "data.gpkg"), options) if code != 0: QMessageBox.warning(None, 'Erreur', f"Erreur à l'export de la couche {layer_name} : \n\n{error}") return new_layer = QgsVectorLayer(str(workDir / f"data.gpkg|layername={layer_name}"), layer_name) # Les layers suivants seront enregistrés dans le gpkg déjà existant options.actionOnExistingFile = QgsVectorFileWriter.CreateOrOverwriteLayer # On charge le style if style_name is not None: stylefile = str((Path(tempdir.name) / style_name).with_suffix('.qml')) processing.run("native:filedownloader", parameters={"URL": styles_url + f"{style_name}.qml", "OUTPUT": stylefile}) new_layer.loadNamedStyle(stylefile) # On charge le nouveau layer project.addMapLayer(new_layer) try: project.removeMapLayer(project.mapLayersByName("OpenStreetMap")[0]) except IndexError: pass self.iface.mapCanvas().refreshAllLayers() project.write(str(workDir / 'orient.qgs'))