Python-сообщество

     def table(self):
        # создание таблицы
        self.table = QtWidgets.QTableWidget(self.centralwidget)
        self.table.setGeometry(QtCore.QRect(10, 50, 462, 950))
        self.table.setStyleSheet("background-color:rgb(209, 209, 209)")
        self.headerLabels = list('A')
        n = 3000
        self.table.setRowCount(n)
        self.table.setColumnCount(len(self.headerLabels))
        self.table.setHorizontalHeaderLabels(self.headerLabels)
        self.table.horizontalHeader().setDefaultSectionSize(100)
        self.table.horizontalHeader().setMinimumSectionSize(125)
        self.table.verticalHeader().setVisible(False)
        self.table.verticalHeader().setDefaultSectionSize(25)
        self.table.verticalHeader().setMinimumSectionSize(25)
        for row in range(n):
            for col in range(len(self.headerLabels)):
                item = QTableWidgetItem(''.format(self.headerLabels[col], row))
                self.table.setItem(row, col, item)
        self.table.resizeColumnsToContents()
        self.table.resizeRowsToContents()

 class GraphicsView(QGraphicsView):  # +++
    clicked = pyqtSignal(str, str)
    def mousePressEvent(self, event):
        super(GraphicsView, self).mousePressEvent(event)
        self.setCursor(Qt.DragMoveCursor)
        # Получить положение мыши на экране
        pos = event.globalPos()
        image = QApplication.primaryScreen().grabWindow(
            int(QApplication.desktop().winId()),
            pos.x() - 23, pos.y() - 23, 47, 47).toImage()
        color = image.pixelColor(23, 23)
        if color.isValid():
            self.clicked.emit('View', color.name())
    def mouseReleaseEvent(self, event):
        super(GraphicsView, self).mouseReleaseEvent(event)
        self.setCursor(Qt.ArrowCursor)

 class MainssWindow(QMainWindow, Ui_MainsWindow):
    def __init__(self):
        super().__init__()
        self.setupUi(self)
        self.layout = QtWidgets.QHBoxLayout(self.wid)
        self.layout.addWidget(self.wid)
        self.scene = GraphicsScene()
        self.scene.setSceneRect(0, 0, 1400, 900)
        width = Settings.NUM_BLOCKS_X * Settings.WIDTH
        height = Settings.NUM_BLOCKS_Y * Settings.HEIGHT
        self.scene.setSceneRect(0, 0, width, height)
        self.scene.setItemIndexMethod(QtWidgets.QGraphicsScene.NoIndex)
        self.setMouseTracking(True)
        self.graphicsView.setScene(self.scene)
        self.scene.clicked.connect(self.point1)
        self.graphicsView.clicked.connect(self.point1) # +++
        self.table()

 class QS(QtWidgets.QGraphicsScene):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        width = Settings.NUM_BLOCKS_X * Settings.WIDTH
        height = Settings.NUM_BLOCKS_Y * Settings.HEIGHT
        self.setSceneRect(0, 0, width, height)
        self.setItemIndexMethod(QtWidgets.QGraphicsScene.NoIndex)
        for x in range(0,Settings.NUM_BLOCKS_X+1):
            xc = x * Settings.WIDTH
            self.addLine(xc,0,xc,height)
        for y in range(0,Settings.NUM_BLOCKS_Y+1):
            yc = y * Settings.HEIGHT
            self.addLine(0,yc,width,yc)

 class GraphicsScene(QGraphicsScene):
    clicked = pyqtSignal(str, QPointF)
    def mousePressEvent(self, event):
        super(GraphicsScene, self).mousePressEvent(event)
        sp = event.scenePos()
        self.clicked.emit('Scene', sp)

     def point1(self, text, value):
        if text == 'Scene':
            self.lab.setText(f'x1 = {value.x()}, y1 = {value.y()}. Интенсивность: ')
        if text == 'View':
            self.lab.setText(f'{self.lab.text()} {value}')