Method setReferenceLine

pj_plotting/widget/src/PlotWidget.cpp:333–347

}

void PlotWidget::setReferenceLine(std::optional<double> reference_x_sec) {
  if (reference_tracker_ == nullptr || tracker_ == nullptr) {
    return;
  }
  if (isXYPlot() || !reference_x_sec.has_value()) {
    reference_tracker_->setEnabled(false);
    tracker_->setReferencePosition(std::nullopt);
  } else {
    const QPointF reference_point(*reference_x_sec, 0.0);
    reference_tracker_->setEnabled(true);
    reference_tracker_->setPosition(reference_point);
    tracker_->setReferencePosition(reference_point);
  }
  replot();
}

bool PlotWidget::trackerEnabled() const noexcept {
  return tracker_enabled_;