communityDetectionEngine.py 文件源码

def initUI(self):
        scene = QtGui.QGraphicsScene(self)
        scene.setItemIndexMethod(QtGui.QGraphicsScene.NoIndex)
        self.setScene(scene)
        self.NodeIds = []
        self.centrality = []
        self.Scene_to_be_updated = scene
        self.setCacheMode(QtGui.QGraphicsView.CacheBackground)
        self.setRenderHint(QtGui.QPainter.Antialiasing)
        self.setInteractive(True)
        self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
        self.setResizeAnchor(QtGui.QGraphicsView.AnchorViewCenter)
        self.setDragMode(QtGui.QGraphicsView.ScrollHandDrag)

        i = 0

        self.communityPos = nx.nx_pydot.graphviz_layout(self.induced_graph,prog='fdp',args='-Gsep=.25,-GK=20-Eweight=2')
        # self.communityPos = nx.spring_layout(self.induced_graph,pos=self.Pos,weight='weight',scale=450)
        for node in self.induced_graph.nodes():
            i = i + 1
            node_value=Node(self.Graph,i,self.correlationTableObject,True)
            self.NodeIds.append(node_value)
            scene.addItem(node_value)
            x,y=self.communityPos[node]
            node_value.setPos(x,y)
            node_value.PutColor(self.clut[i-1])
        k =0
        for i,j in self.induced_graph.edges():
                Weight = self.induced_graph[i][j]['weight'] 
                Edge_Value = 1+(float(Weight-self.Min1)/(self.Max1 - self.Min1))*5
                scene.addItem(Edge(self.Graph,self.NodeIds[i],self.NodeIds[j],k, i,j,self.Max,((self.Matrix[j,i]-self.Min1)/(self.Max1 - self.Min1))*5,True))
                k = k + 1 

        self.setSceneRect(self.Scene_to_be_updated.itemsBoundingRect())
        self.setScene(self.Scene_to_be_updated)
        self.fitInView(self.Scene_to_be_updated.itemsBoundingRect(),QtCore.Qt.KeepAspectRatio)
        self.scaleView(math.pow(2.5, -900 / 1040.0))

        self.nodes = [item for item in scene.items() if isinstance(item, Node)]
        self.edges = [item for item in scene.items() if isinstance(item, Edge)]