Method getVisualizationRangeY

pj_plotting/widget/src/PlotWidgetBase.cpp:344–377

}

Range<double> PlotWidgetBase::getVisualizationRangeY(Range<double> range_x) const {
  double bottom = std::numeric_limits<double>::max();
  double top = std::numeric_limits<double>::lowest();

  for (const auto& info : curveList()) {
    if (info.curve == nullptr || !info.curve->isVisible() || info.curve->data() == nullptr) {
      continue;
    }

    if (const auto* adapter = dynamic_cast<const DatastoreCurveAdapter*>(info.curve->data())) {
      const auto y_range = adapter->visibleYRange(range_x);
      if (y_range.has_value()) {
        bottom = std::min(bottom, y_range->min);
        top = std::max(top, y_range->max);
      }
      continue;
    }

    const QRectF rect = info.curve->data()->boundingRect();
    if (!isUsableRect(rect)) {
      continue;
    }
    bottom = std::min(bottom, rect.top());
    top = std::max(top, rect.bottom());
  }

  if (bottom > top) {
    bottom = -1.0;
    top = 1.0;
  }

  const double margin = (top - bottom) * 0.025;
  return Range<double>{.min = bottom - margin, .max = top + margin};
}

void PlotWidgetBase::setModeXY(bool enable) {
  // XY (scatter) plots use the plot-level curve style like any other plot — the