qsedatareference.cpp

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#include "qsedatareference.h"
#include "qsedataset.h"

QseDataReference::QseDataReference(const QseDataSet *ds, int scan, int xcol, int ycol, int normcol)
  : m_DataSet(ds),
    m_Scan(scan),
    m_XCol(xcol),
    m_YCol(ycol),
    m_NormCol(normcol),
    m_XData(ds->scan(scan)->column(xcol)),
    m_YData(ds->scan(scan)->column(ycol)),
    m_NormData(NULL)
{
  if (m_NormCol >= 0) {
    m_NormData = ds->scan(scan)->column(m_NormCol);
  }
}

size_t QseDataReference::size() const
{
  return m_XData->rowCount();
}
  
double QseDataReference::x(size_t i) const
{
  return m_XData->data(i);
}

double QseDataReference::y(size_t i) const
{
  if (m_NormData) {
    return m_YData->data(i)/m_NormData->data(i);
  } else {
    return m_YData->data(i);
  }
}

QseDataReference* QseDataReference::copy() const
{
  return new QseDataReference(m_DataSet, m_Scan, m_XCol, m_YCol, m_NormCol);
}

QPointF QseDataReference::sample(size_t i) const
{
  return QPointF(x(i), y(i));
}