Method AddErrorIntervalCurve

Modules/QtWidgetsExt/src/QmitkPlotWidget.cpp:261–321

}

bool QmitkPlotWidget::AddErrorIntervalCurve(unsigned int curveId,
                                            const DataVector &lessError,
                                            const DataVector &moreError,
                                            bool isXError)
{
  const QwtSeriesData<QPointF> *curveSeriesData = std::get<0>(this->m_PlotCurveVector[curveId])->data();

  size_t size = curveSeriesData->size();

  if (size != lessError.size() || size != moreError.size())
  {
    std::cerr << "Sizes of data arrays don't match." << std::endl;
    return false;
  }

  QVector<QwtIntervalSample> samples;
  QwtIntervalSample *sample;
  QwtPlotIntervalCurve *curve;

  if (isXError)
  {
    curve = std::get<1>(m_PlotCurveVector[curveId]);
  }
  else
  {
    curve = std::get<2>(m_PlotCurveVector[curveId]);
  }

  for (unsigned int index = 0; index < size; ++index)
  {
    qreal xValue = curveSeriesData->sample(index).x();
    qreal yValue = curveSeriesData->sample(index).y();
    if (isXError)
    {
      sample = new QwtIntervalSample(xValue, xValue - lessError[index], xValue + moreError[index]);
    }
    else
    {
      sample = new QwtIntervalSample(xValue, yValue - lessError[index], yValue + moreError[index]);
    }
    samples.push_back(*sample);
  }

  curve->setSamples(samples);
  curve->setStyle(QwtPlotIntervalCurve::NoCurve);

  QwtIntervalSymbol *errorBar = new QwtIntervalSymbol(QwtIntervalSymbol::Bar);
  errorBar->setPen(QPen(Qt::black));
  curve->setSymbol(errorBar);

  if (isXError)
  {
    curve->setOrientation(Qt::Horizontal);
  }
  else
  {
    curve->setOrientation(Qt::Vertical);
  }