import

CarController.py

@@ -5,8 +5,17 @@ class CarController:
     def __init__(self,parentMap):
         self.map=parentMap
         self.cars=[]
+        self.path = None
+    
+    def setPath(self,path):
+        self.path = path
 
-    def fromPath(self,path):
+    def fromPath(self,path=None):
+        if(path == None):
+            if(self.path == None):
+                return
+            else:
+                path = self.path
         for vehicle in sumolib.xml.parse(path,"vehicle"):
             route=vehicle.route[0].edges.split()
             self.cars.append(Car(vehicle.id,route,self.map,self))

Map.py

@@ -10,10 +10,22 @@ class Map:
     def __init__(self,path=None):
         if path!=None:
             self.fromPath(path)
+        self.net = None
     
     def fromPath(self,path):
         self.net = sumolib.net.readNet(path,withInternal=True,withConnections=True)
+   
+    def isLoaded(self):
+        return not (self.net == None)
 
+    def safeCall(func):
+        def inner(*args, **kwargs):
+            if not args[0].isLoaded():
+                return
+            return func(*args, **kwargs)
+        return inner
+    
+    @safeCall
     def draw(self, painter):
         for edge in self.net.getEdges():
             color=Qt.white
@@ -24,19 +36,24 @@ class Map:
                 pts=[QPointF(*p) for p in lane.getShape()]
                 poly = QPolygonF.fromList(pts)
                 painter.drawPolyline(poly)
-
+    
+    @safeCall
     def getEdge(self,edgeID):
         return self.net.getEdge(edgeID)
 
+    @safeCall
     def getNode(self,nodeID):
         return self.net.getNode(nodeID)
    
+    @safeCall
     def getLane(self,laneID):
         return self.net.getLane(laneID)
-
+    
+    @safeCall
     def getBounds(self):
         return self.net.getBBoxXY()
-
+    
+    @safeCall
     def convertPos(self,pos):
         bounds=self.net.getBoundary()
         bounds[0]-=200

main.py

@@ -8,7 +8,7 @@ else:
 
 from PySide6.QtCore import Qt, QTimer
 from PySide6.QtWidgets import QApplication, QMainWindow
-from PySide6.QtGui import QSurfaceFormat
+from PySide6.QtGui import QSurfaceFormat, QAction
 from window import Ui_MainWindow
 
 from mainLoop import mainLoop
@@ -18,9 +18,25 @@ class MainWindow(QMainWindow):
         super(MainWindow, self).__init__()
         self.ui = Ui_MainWindow()
         self.ui.setupUi(self)
-    
+
-        self.mainLoop = mainLoop(self.ui.mainSurf)
+        self.setAttribute(Qt.WA_TranslucentBackground)
+        self.setAttribute(Qt.WA_NoSystemBackground, False)
+     
+        self.mainLoop = mainLoop(self)
+
+        fileMenu = self.menuBar().addMenu("&File")
+        openMenu = fileMenu.addMenu("&Open")
+
+        openNet = QAction("&Open Network",self)
+        openNet.setStatusTip("Open Network file (.net.xml)")
+        openNet.triggered.connect(self.mainLoop.openNetwork)
+        openMenu.addAction(openNet)
         
+        openVeh = QAction("&Open Vehicles",self)
+        openVeh.setStatusTip("Open Vehicle description (.rou.xml)")
+        openVeh.triggered.connect(self.mainLoop.openVehicles)
+        openMenu.addAction(openVeh)
+
         timer = QTimer(self)
         timer.timeout.connect(self.mainLoop.update)
         timer.start(1.0/60)
@@ -34,9 +50,8 @@ if __name__ == "__main__":
    
     format = QSurfaceFormat()
     format.setDepthBufferSize(24)
-    format.setStencilBufferSize(8)
     format.setVersion(3, 2)
-    format.setSamples(16)
+    format.setSamples(4)
     format.setProfile(QSurfaceFormat.CoreProfile)
     QSurfaceFormat.setDefaultFormat(format)
 

mainLoop.py

@@ -1,15 +1,16 @@
 from Map import Map
 from CarController import CarController
 
+from PySide6.QtWidgets import QFileDialog
+
 class mainLoop():
-    def __init__(self, painter):
+    def __init__(self, parent):
-        self.painter = painter
+        self.parent = parent
+        self.painter = parent.ui.mainSurf
 
         self.map = Map()
-        self.map.fromPath("test2.net.xml")
         
         self.controller = CarController(self.map)
-        self.controller.fromPath("test5.rou.xml")
         
         self.painter.addMap(self.map)
         self.painter.addCarController(self.controller)
@@ -17,3 +18,21 @@ class mainLoop():
     def update(self):
         self.controller.update()
         self.painter.update()
+
+    def openNetwork(self):
+        fileName = QFileDialog.getOpenFileName(self.parent,"Open Network", "./", "Network File (*.net.xml)")
+        if(fileName[0] == ''):
+            return
+        self.map.fromPath(fileName[0])
+        self.painter.generateTransform()
+
+        self.controller.fromPath()
+
+    def openVehicles(self):
+        fileName = QFileDialog.getOpenFileName(self.parent,"Open Vehicle trip description", "./", "Route File (*.rou.xml)")
+        if(fileName[0] == ''):
+            return
+        self.controller.setPath(fileName[0])
+        if(self.map.isLoaded()):
+            self.controller.fromPath()
+

mainPainter.py

@@ -1,10 +1,12 @@
 from PySide6.QtOpenGLWidgets import QOpenGLWidget
 from PySide6.QtCore import Qt
-from PySide6.QtGui import QPainter, QFont, QColor, QTransform
+from PySide6.QtGui import QPainter, QFont, QColor, QTransform, QOpenGLContext, QOpenGLFunctions
+from PySide6 import QtOpenGL
 
 class mainPainter(QOpenGLWidget):
     def __init__(self, parent=None):
         super(mainPainter, self).__init__(parent)
+         
         self.map = None
         self.carController = None
         self.transform = QTransform()
@@ -17,6 +19,8 @@ class mainPainter(QOpenGLWidget):
 
     def generateTransform(self):
         bounds = self.map.getBounds()
+        if(bounds == None):
+            return
         bounds[0] = list(map(lambda b: b-10,bounds[0]))
         bounds[1] = list(map(lambda b: b+10, bounds[1]))
         self.transform.reset()