# -*- coding: utf-8 -*- """ /*************************************************************************** ProxiSante A QGIS plugin Un plugin pour trouver le chemin le plus court d'un point de départ (coordonnées en X/Y) vers les hôpitaux les plus proche. Generated by Plugin Builder: http://g-sherman.github.io/Qgis-Plugin-Builder/ ------------------- begin : 2024-10-28 git sha : $Format:%H$ copyright : (C) 2024 by Geomagicien email : etudes.geomatique@ikmail.com ***************************************************************************/ /*************************************************************************** * * * 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 * from qgis.PyQt.QtGui import * from qgis.PyQt.QtWidgets import * from qgis.core import * from qgis.gui import * from typing import * from math import * from .Temps_de_trajet_vers_hopitaux import Temps_de_trajet_vers_hopitaux # Initialize Qt resources from file resources.py from .resources import * # Import the code for the dialog from .ProxiSante_dialog import ProxiSanteDialog import os.path class ProxiSante: """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', 'ProxiSante_{}.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'&ProxiSante') # 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('ProxiSante', 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/ProxiSante/icon.png' self.add_action( icon_path, text=self.tr(u'Itineraires trouvant le chemin le plus rapide vers des hopitaux'), 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'&ProxiSante'), action) self.iface.removeToolBarIcon(action) def run(self): """Run method that performs all the real work""" # Create the dialog with elements (after translation) and keep reference # Only create GUI ONCE in callback, so that it will only load when the plugin is started if self.first_start == True: self.first_start = False self.dlg = ProxiSanteDialog() # show the dialog self.dlg.show() # Run the dialog event loop result = self.dlg.exec_() # See if OK was pressed if result: # Récupère le nom d'une couche textMapLayer1 = self.dlg.mMapLayerComboBox.currentText() textMapLayer2 = self.dlg.mMapLayerComboBox_2.currentText() # Récupérer les coordonnées départ Coordonnees_depart_texte = self.dlg.lineEdit.displayText().strip() point_depart = self.Obtenir_Coordonnees_depart(Coordonnees_depart_texte) if not point_depart: return # Interrompre si la conversion a échoué layer1 = None layer2 = None for layer in QgsProject.instance().mapLayers().values(): if layer.name() == textMapLayer1: layer1 = layer if layer.name() == textMapLayer2: layer2 = layer # Vérification des couches if not layer1 or not layer2: QMessageBox.warning(self.iface.mainWindow(), "Erreur", "Veuillez sélectionner les couches correctement.") return try: # Initialisation du modèle self.modele = Temps_de_trajet_vers_hopitaux() feedback = QgsProcessingFeedback() context = QgsProcessingContext() context.setProject(QgsProject.instance()) # Parametres du modele pathCoordonnees = point_depart pathReseau = layer1.source() pathHopitaux = layer2.source() # Obtenir le chemin du projet project_path = QgsProject.instance().homePath() # Créer le dossier data s'il n'existe pas data_dir = os.path.join(project_path, 'data') if not os.path.exists(data_dir): os.makedirs(data_dir) pathResult1 = os.path.join(project_path, 'data', 'Chemin_le_plus_rapide_pour_chaque_hopital_avec_le_temps_de_trajet_en_minutes.shp') pathResult2 = os.path.join(project_path, 'data', 'Trajet_le_plus_rapide_depuis_mon_point_de_depart.shp') parameters = { 'depart': pathCoordonnees, 'reseau_routier' : pathReseau, 'hopitaux': pathHopitaux, 'Chemin_le_plus_rapide_pour_chaque_hopital_avec_le_temps_de_trajet_en_minutes': pathResult1, 'Trajet_le_plus_rapide_depuis_mon_point_de_depart': pathResult2 } # Execution de l'algorithme self.modele.initAlgorithm() results = self.modele.processAlgorithm(parameters, context, feedback) # Charger et styliser les résultats if results: self.charger_resultats( results['Chemin_le_plus_rapide_pour_chaque_hopital_avec_le_temps_de_trajet_en_minutes'], results['Trajet_le_plus_rapide_depuis_mon_point_de_depart'] ) except Exception as e: QMessageBox.warning(self.iface.mainWindow(), "Erreur", f"Une erreur s'est produite lors du traitement : {str(e)}") def charger_resultats(self, pathResult1, pathResult2): # Charger le premier résultat (tous les chemins) vlayer1 = QgsVectorLayer(pathResult1, "Chemins vers les hopitaux", "ogr") if vlayer1.isValid(): # Créer un symbole de ligne bleue symbol1 = QgsLineSymbol.createSimple({ 'line_color': '0,0,255,255', # Bleu 'line_width': '1', 'line_style': 'solid' }) vlayer1.renderer().setSymbol(symbol1) vlayer1.triggerRepaint() QgsProject.instance().addMapLayer(vlayer1) # Charger le deuxième résultat (chemin le plus rapide) vlayer2 = QgsVectorLayer(pathResult2, "Hopital le plus proche", "ogr") if vlayer2.isValid(): # Créer un symbole de ligne rouge plus épaisse symbol2 = QgsLineSymbol.createSimple({ 'line_color': '255,0,0,255', # Rouge 'line_width': '2', 'line_style': 'solid' }) vlayer2.renderer().setSymbol(symbol2) vlayer2.triggerRepaint() QgsProject.instance().addMapLayer(vlayer2) # Récupérer l'échelle depuis le widget scale = self.dlg.mScaleWidget.scale() if vlayer1.isValid() and vlayer2.isValid(): canvas = self.iface.mapCanvas() # Définir l'étendue extent = vlayer1.extent() extent.combineExtentWith(vlayer2.extent()) extent.scale(1.1) # Marge de 10% # Appliquer l'échelle et l'étendue canvas.setExtent(extent) if scale > 0: canvas.zoomScale(scale) canvas.refresh() def Obtenir_Coordonnees_depart(self, Coordonnees_depart_texte): try: # Nettoyer et séparer les coordonnées Coordonnees = Coordonnees_depart_texte.strip().split(',') if len(Coordonnees) != 2: raise ValueError("Format de coordonnées invalide") # Convertir en nombres flottants lat, lon = map(float, Coordonnees) point = QgsPointXY(lat, lon) return point except (ValueError, IndexError) as e: QMessageBox.warning(None, "Erreur", f"Format de coordonnées invalide. Utilisez le format: latitude, longitude (ex: 43.611050,3.873164). Erreur: {str(e)}") return None