const QColor AnalogSignal::ThresholdColor = QColor(0, 0, 0, 30 * 256 / 100);
const QColor AnalogSignal::ThresholdColorLo = QColor(255, 0, 0, 8 * 256 / 100);
const QColor AnalogSignal::ThresholdColor = QColor(0, 0, 0, 30 * 256 / 100);
const QColor AnalogSignal::ThresholdColorLo = QColor(255, 0, 0, 8 * 256 / 100);