Method getFirstScan

src/openms_gui/source/VISUAL/Painter2DBase.cpp:298–301

      return spec.getRT();
    }
    MSExperiment::ConstIterator getFirstScan(double value) const override
    {
      return exp_.RTBegin(value);
    }
    DimMapper<2>::Point mapToPoint(double value, double mz) const override
    {
      return mapper_.map(Peak2D({value, mz}, 0));