WireCell::linterp< Real > Class Template Reference

#include <Interpolate.h>

Public Member Functions
template<class BidiIterator >
	linterp (BidiIterator f, BidiIterator end_p, Real left_endpoint, Real step)
Real	operator() (Real x) const

Private Attributes
std::vector< Real >	m_dat
Real	m_le
Real	m_re
Real	m_step

Detailed Description

template<class Real>
class WireCell::linterp< Real >

Use like:

linterp<double> lin(f.begin(), f.end(), x0, xstep); ... double y = lin(42.0);

where "f" is some kind of collection of doubles.

Definition at line 27 of file Interpolate.h.

Constructor & Destructor Documentation

template<class Real>

template<class BidiIterator >

WireCell::linterp< Real >::linterp ( BidiIterator  f, BidiIterator  end_p, Real  left_endpoint, Real  step  )

inline

Definition at line 30 of file Interpolate.h.

            : m_dat(f,end_p), m_le(left_endpoint), m_step(step) {
            m_re = m_le + m_step * (m_dat.size()-1);
        }

Member Function Documentation

template<class Real>

Real WireCell::linterp< Real >::operator() ( Real  x ) const

inline

Definition at line 35 of file Interpolate.h.

                                      {
            if (x <= m_le) return m_dat.front();
            if (x >= m_re) return m_dat.back();

            int ind = int((x-m_le)/m_step);
            Real y0 = m_dat[ind];
            Real y1 = m_dat[ind+1];
            Real x0 = m_le + ind * m_step;

            return y0 + (x-x0) * (y1-y0) / m_step;
        }

Member Data Documentation

template<class Real>

std::vector<Real> WireCell::linterp< Real >::m_dat

private

Definition at line 48 of file Interpolate.h.

template<class Real>

Real WireCell::linterp< Real >::m_le

private

Definition at line 49 of file Interpolate.h.

template<class Real>

Real WireCell::linterp< Real >::m_re

private

Definition at line 49 of file Interpolate.h.

template<class Real>

Real WireCell::linterp< Real >::m_step

private

Definition at line 49 of file Interpolate.h.

---

The documentation for this class was generated from the following file:

• wire-cell-build/util/inc/WireCellUtil/Interpolate.h