GridScene.py 文件源码

def __init__(self, parent=None):
        self.draw_grid = False
        self.font_metrics = QFontMetrics(QFont())
        self.center_freq = 433.92e6
        self.frequencies = []
        self.frequency_marker = None
        super().__init__(parent)
        self.setSceneRect(0,0,10,10)