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BasicMath.cpp
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1555 lines (1221 loc) · 39.7 KB
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// BasicMath.cpp: implementation of the CBasicMath class.
//
//////////////////////////////////////////////////////////////////////
#undef min
#undef max
#include "stdafx.h"
#include "resource.h"
#include "BasicMath.h"
//#include "MFCTools.h"
//#include "MathHistory.h"
#include "Fit/GaussFunction.h"
#include "Fit/CubicSplineFunction.h"
#include "Fit/StandardMetricFunction.h"
#include "Fit/PolynomialFunction.h"
#include "Fit/DiscreteFunction.h"
#include "Fit/StandardFit.h"
#include "Fit/DOASVector.h"
//#include "windoastools.h"
//#include "DoubleMonitoredArrayData.h"
#include <math.h>
#include <algorithm>
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
using namespace MathFit;
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
bool CBasicMath::mDoNotUseMathLimits = false;
CBasicMath::CBasicMath()
{
}
CBasicMath::~CBasicMath()
{
}
double* CBasicMath::LowPassBinomial(double *fData, int iSize, int iNIterations)
{
double *fBuffer = new double[iSize];
double *fOut = fData;
double *fIn = fBuffer;
const int iLast = iSize - 1;
const int iFirst = 0;
int j, i;
for(j = 0; j < iNIterations; j++)
{
// now swap buffers
double *fTemp = fIn;
fIn = fOut;
fOut = fTemp;
for(i = iFirst; i < iSize; i++)
{
double lMid, lLeft, lRight;
lMid = fIn[i];
if(i == iFirst)
lLeft = fIn[i];
else
lLeft = fIn[i - 1];
if(i == iLast)
lRight = fIn[i];
else
lRight = fIn[i + 1];
fOut[i] = 0.5 * lMid + 0.25 * lLeft + 0.25 * lRight;
}
}
if(fOut != fData)
memcpy(fData, fOut, sizeof(double) * iSize);
delete(fBuffer);
return(fData);
}
/*void CBasicMath::LowPassBinomial(ISpectrum& dispData, int iNIterations)
{
CDoubleMonitoredArrayData dmadData(dispData.Data);
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispData, iMeaStart, iMeaEnd);
double* fData = dmadData.GetBuffer();
LowPassBinomial(&fData[iMeaStart], iSize, iNIterations);
dispData.Data = dmadData.GetMonitoredArray();
AddHistory(dispData, LOWPASS);
}*/
double* CBasicMath::HighPassBinomial(double *fData, int iSize, int iNIterations)
{
double *fBuffer = new double[iSize];
int i;
// create copy of original data
memcpy(fBuffer, fData, sizeof(double) * iSize);
// create low pass filtered data
LowPassBinomial(fBuffer, iSize, iNIterations);
// remove low pass part from data
for(i = 0; i < iSize; i++)
{
if(fBuffer[i] != 0.0)
fData[i] /= fBuffer[i];
else
fData[i] = 0;
}
// free the buffer
delete(fBuffer);
return(fData);
}
/*void CBasicMath::HighPassBinomial(ISpectrum& dispData, int iNIterations)
{
CDoubleMonitoredArrayData dmadData(dispData.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispData, iMeaStart, iMeaEnd);
HighPassBinomial(&fData[iMeaStart], iSize, iNIterations);
dispData.Data = dmadData.GetMonitoredArray();
AddHistory(dispData, HIGHPASS);
}*/
double* CBasicMath::Log(double *fData, int iSize)
{
int i;
for(i = 0; i < iSize; i++)
fData[i] = fData[i] <= 0 ? 0.0 : log(fData[i]);
return(fData);
}
/*void CBasicMath::Log(ISpectrum& dispData)
{
CDoubleMonitoredArrayData dmadData(dispData.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispData, iMeaStart, iMeaEnd);
Log(&fData[iMeaStart], iSize);
dispData.Data = dmadData.GetMonitoredArray();
AddHistory(dispData, LOGSPEC);
}*/
double* CBasicMath::Delog(double *fData, int iSize)
{
int i;
for(i = 0; i < iSize; i++)
fData[i] = exp(fData[i]);
return(fData);
}
/*void CBasicMath::Delog(ISpectrum& dispData)
{
CDoubleMonitoredArrayData dmadData(dispData.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispData, iMeaStart, iMeaEnd);
Delog(&fData[iMeaStart], iSize);
dispData.Data = dmadData.GetMonitoredArray();
AddHistory(dispData, EXPSPEC);
}*/
double* CBasicMath::CalcMeasuredSpec(double* fRes, double* fMea, int iMeaScans, double fMeaExpTime, double* fLamp, int iLampScans, double fLampExpTime, double* fBack, int iBackScans, double fBackExpTime, double fOffset, double fOffsetExpTime, int iSize)
{
if(iMeaScans == 0 || iBackScans == 0 || iLampScans == 0)
return(fRes);
int i;
if(fBackExpTime == fOffsetExpTime)
fBackExpTime += 1.0;
double fTau = (fMeaExpTime - fOffsetExpTime) / (fBackExpTime - fOffsetExpTime);
double fMin = 1;
for(i = 0; i < iSize; i++)
{
double fB = fTau * ((fBack[i] / iBackScans) - fOffset);
double fM = (fMea[i] / iMeaScans) - fOffset;
double fL = (fLamp[i] / iLampScans) - fOffset;
fRes[i] = (fM - fB) / (fL != 0 ? fL : 1.0);
if(fRes[i] < fMin)
fMin = fRes[i];
}
// if we have negative values or zero values, move the whole spectrum into the positive space
if(fMin <= 0)
{
// generate positive offset
fMin = -fMin;
// make sure to be non zero
fMin += 1;
for(i = 0; i < iSize; i++)
fRes[i] += fMin;
}
return(fRes);
}
/*void CBasicMath::CalcMeasuredSpec(ISpectrum& dispRes, ISpectrum& dispMea, ISpectrum& dispLamp, ISpectrum& dispBack, double fOffset, double fOffsetExpTime)
{
int iSize = min(dispBack.GetNChannel(), min(dispMea.GetNChannel(), dispLamp.GetNChannel()));
// create the result array
CDoubleMonitoredArrayData dmadMea(dispMea.Data);
CDoubleMonitoredArrayData dmadLamp(dispLamp.Data);
CDoubleMonitoredArrayData dmadBack(dispBack.Data);
CDoubleMonitoredArrayData dmadRes(iSize);
int iMeaStart, iMeaEnd, iNewSize;
// calculate the real size
iNewSize = min(CheckLimits(dispMea, iMeaStart, iMeaEnd), iSize);
double* fRes = dmadRes.GetBuffer();
double* fLamp = dmadLamp.GetBuffer();
double* fBack = dmadBack.GetBuffer();
double* fMea = dmadMea.GetBuffer();
CalcMeasuredSpec(&fRes[iMeaStart], &fMea[iMeaStart], dispMea.GetNumScans(), dispMea.GetExposureTime(), &fLamp[iMeaStart], dispLamp.GetNumScans(), dispLamp.GetExposureTime(), &fBack[iMeaStart], dispBack.GetNumScans(), dispBack.GetExposureTime(), fOffset, fOffsetExpTime, iNewSize);
dispRes.Data = dmadRes.GetMonitoredArray();
AddHistory(dispRes, CALCAIR);
}*/
double CBasicMath::CalcExposureTime(double fSaturation, double fEOffsetExpTime, double fCurrentExpTime, double fCurrentAvg, double fBackExpTime, double fBackAvg, double fIntTime)
{
// if no spec given reduce time
if(fCurrentAvg == 0)
return(fCurrentExpTime * 0.8);
// the currently used exposure time is the exposure time without the electronic background exposure time
double fCurExpTime = std::max(fCurrentExpTime - fEOffsetExpTime, 0.0);
// we need only the average of the real measured signal level without the background
// ensure the difference is at least 1 unit big, so we switch to maximum exposure time
double fDiffAvg = fabs(fCurrentAvg - fBackAvg) + 1;
// ratio of current signal average and desired signal average
double fSignalRatio = fSaturation * 65536.0 / fDiffAvg;
// the new exposure time is the sum of the electronic offset exposure time and
// the old exposure time derived from the ratio calculated
double fRes = std::max((fCurExpTime * fSignalRatio) + fEOffsetExpTime, 0.0);
if(fIntTime > 0)
return(std::min(fRes, fIntTime));
else
return(fRes);
}
/*double CBasicMath::CalcExposureTime(ISpectrum& dispMea, ISpectrum& dispBack, double fSaturation, double fIntTime)
{
return(CalcExposureTime(fSaturation, 0, dispMea.GetExposureTime(), dispMea.GetAverage() / dispMea.GetNumScans(), dispBack.GetExposureTime(), dispBack.GetAverage() / dispBack.GetNumScans(), fIntTime));
}*/
/*
* CheckLimits
*
* Checks for valid math limit settings and returns the array boundaries as zero based
* indices as well as the number of elements contained in the selected array.
*/
/*int CBasicMath::CheckLimits(ISpectrum &dispSpec, int &iLowLimit, int &iHighLimit)
{
int iSize = dispSpec.GetNChannel();
// no limits wanted, so no limts set
if(mDoNotUseMathLimits)
{
iLowLimit = 0;
iHighLimit = iSize - 1;
return(iSize);
}
// check math limits
iLowLimit = (int)min(dispSpec.GetMathLow(), iSize - 1);
if(iLowLimit < 0)
iLowLimit = 0;
iHighLimit = (int)min(dispSpec.GetMathHigh(), iSize - 1);
if(iHighLimit < 0)
iHighLimit = 0;
if(iLowLimit >= iHighLimit)
iHighLimit = iLowLimit + 1;
// calculate the real size
return(min(iHighLimit - iLowLimit + 1, iSize));
}*/
void CBasicMath::BiasAdjust(double *fData, int iSize)
{
double fAverage;
int i;
// get average value
for(fAverage = i = 0; i < iSize; i++)
fAverage += fData[i];
fAverage /= (double)iSize;
// remove average
for(i = 0; i < iSize; i++)
fData[i] -= fAverage;
}
/*void CBasicMath::BiasAdjust(ISpectrum &dispSpec)
{
CDoubleMonitoredArrayData dmadData(dispSpec.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispSpec, iMeaStart, iMeaEnd);
BiasAdjust(&fData[iMeaStart], iSize);
dispSpec.Data = dmadData.GetMonitoredArray();
AddHistory(dispSpec, BIASADJUST);
}
*/
void CBasicMath::Zero(double *fData, int iSize, double fZeroLimit)
{
int i;
fZeroLimit = fabs(fZeroLimit);
for(i = 0; i < iSize; i++)
if(fabs(fData[i]) < fZeroLimit)
fData[i] = 0;
}
/*void CBasicMath::Zero(ISpectrum &dispSpec, double fZeroLimit)
{
CDoubleMonitoredArrayData dmadData(dispSpec.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispSpec, iMeaStart, iMeaEnd);
Zero(&fData[iMeaStart], iSize, fZeroLimit);
dispSpec.Data = dmadData.GetMonitoredArray();
AddHistory(dispSpec, ZEROSPEC);
}*/
void CBasicMath::NormalizeAmplitude(double *fData, int iSize, double fMaxAmplitude)
{
int i;
double fMax;
// search pivot
fMax = fData[0];
for(i = 1; i < iSize; i++)
fMax = std::max(fMax, fabs(fData[i]));
// nothing to do here
if(fMax == 0)
return;
double fFactor = fMaxAmplitude / fMax;
for(i = 0; i < iSize; i++)
fData[i] *= fFactor;
}
/*void CBasicMath::NormalizeAmplitude(ISpectrum &dispSpec, double fMaxAmplitude)
{
CDoubleMonitoredArrayData dmadData(dispSpec.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispSpec, iMeaStart, iMeaEnd);
NormalizeAmplitude(&fData[iMeaStart], iSize, fMaxAmplitude);
dispSpec.Data = dmadData.GetMonitoredArray();
AddHistory(dispSpec, NORMAMP);
}*/
void CBasicMath::NormalizeEnergy(double *fData, int iSize, double fEnergy)
{
int i;
double fCurEnergy;
// get current energy
for(fCurEnergy = i = 0; i < iSize; i++)
fCurEnergy += fabs(fData[i]);
// nothing to divide
if(fCurEnergy == 0)
return;
// normalize energy level
double fFactor = fEnergy / fCurEnergy;
for(i = 0; i < iSize; i++)
fData[i] *= fFactor;
}
/*void CBasicMath::NormalizeEnergy(ISpectrum &dispSpec, double fEnergy)
{
CDoubleMonitoredArrayData dmadData(dispSpec.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispSpec, iMeaStart, iMeaEnd);
NormalizeEnergy(&fData[iMeaStart], iSize, fEnergy);
dispSpec.Data = dmadData.GetMonitoredArray();
AddHistory(dispSpec, NORMENERGY);
}
*/
void CBasicMath::Invert(double *fData, int iSize)
{
int i;
for(i = 0; i < iSize; i++)
fData[i] *= -1;
}
/*void CBasicMath::Invert(ISpectrum &dispSpec)
{
CDoubleMonitoredArrayData dmadData(dispSpec.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispSpec, iMeaStart, iMeaEnd);
Invert(&fData[iMeaStart], iSize);
dispSpec.Data = dmadData.GetMonitoredArray();
AddHistory(dispSpec, INVERT);
}*/
void CBasicMath::Reciprocal(double *fData, int iSize)
{
int i;
for(i = 0; i < iSize; i++)
fData[i] = 1 / fData[i];
}
/*void CBasicMath::Reciprocal(ISpectrum &dispSpec)
{
CDoubleMonitoredArrayData dmadData(dispSpec.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispSpec, iMeaStart, iMeaEnd);
Reciprocal(&fData[iMeaStart], iSize);
dispSpec.Data = dmadData.GetMonitoredArray();
AddHistory(dispSpec, RECIPROC);
}*/
void CBasicMath::Convolute(double *fFirst, int iSize, double *fCore, int iCoreSize)
{
int iCoreMid = iCoreSize / 2;
int i, j;
// backup the original data
double* fBuffer = new double[iSize];
memcpy(fBuffer, fFirst, iSize * sizeof(double));
// process every pixel
for(i = 0; i < iSize; i++)
{
fFirst[i] = 0;
int iIndex = -iCoreMid;
// convolute with core, boundaries will be constanstly extended
for(j = 0; j < iCoreSize; j++, iIndex++)
{
// the index to the base data is the core index plus the base index
int iRealIndex = iIndex + i;
if(iRealIndex < 0)
iRealIndex = 0;
else if(iRealIndex >= iSize)
iRealIndex = iSize - 1;
fFirst[i] += fBuffer[iRealIndex] * fCore[j];
}
}
delete(fBuffer);
}
/*void CBasicMath::Convolute(ISpectrum &dispFirst, ISpectrum &dispCore)
{
CDoubleMonitoredArrayData dmadData(dispFirst.Data);
double* fData = dmadData.GetBuffer();
CDoubleMonitoredArrayData dmadCore(dispCore.Data);
double* fCore = dmadCore.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispFirst, iMeaStart, iMeaEnd);
// get core limits
int iCoreStart, iCoreEnd, iCoreSize;
iCoreSize = CheckLimits(dispCore, iCoreStart, iCoreEnd);
Convolute(&fData[iMeaStart], iSize, &fCore[iCoreStart], iCoreSize);
dispFirst.Data = dmadData.GetMonitoredArray();
AddHistory(dispFirst, CONVOLUTION);
}
*/
void CBasicMath::Reverse(double *fData, int iSize)
{
double* fBuffer = new double[iSize];
memcpy(fBuffer, fData, iSize * sizeof(double));
int i;
for(i = 0; i < iSize; i++)
fData[i] = fBuffer[iSize - i - 1];
delete(fBuffer);
}
/*void CBasicMath::Reverse(ISpectrum &dispData)
{
CDoubleMonitoredArrayData dmadData(dispData.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispData, iMeaStart, iMeaEnd);
Reverse(&fData[iMeaStart], iSize);
dispData.Data = dmadData.GetMonitoredArray();
AddHistory(dispData, REVERSE);
}*/
void CBasicMath::Add(double *fFirst, double *fSec, int iSize, double fFactor)
{
if(fFactor != 0)
{
int i;
for(i = 0; i < iSize; i++)
fFirst[i] += fFactor * fSec[i];
}
else
{
int i;
for(i = 0; i < iSize; i++)
fFirst[i] += fSec[i];
}
}
/*void CBasicMath::Add(ISpectrum &dispFirst, ISpectrum &dispSec, int iMode)
{
CDoubleMonitoredArrayData dmadData(dispFirst.Data);
double* fData = dmadData.GetBuffer();
CDoubleMonitoredArrayData dmadSec(dispSec.Data);
double* fSec = dmadSec.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispFirst, iMeaStart, iMeaEnd);
if(dispSec.GetNChannel() < iMeaEnd)
return;
double fCorrectFactor = GetCorrectFactor(dispFirst, dispSec, iMode);
Add(&fData[iMeaStart], &fSec[iMeaStart], iSize, fCorrectFactor);
dispFirst.Data = dmadData.GetMonitoredArray();
AddHistory(dispFirst, ADDSPEC);
}*/
void CBasicMath::Add(double *fFirst, int iSize, double fConst)
{
int i;
for(i = 0; i < iSize; i++)
fFirst[i] += fConst;
}
/*void CBasicMath::Add(ISpectrum &dispFirst, double fConst)
{
CDoubleMonitoredArrayData dmadData(dispFirst.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispFirst, iMeaStart, iMeaEnd);
Add(&fData[iMeaStart], iSize, fConst);
dispFirst.Data = dmadData.GetMonitoredArray();
AddHistory(dispFirst, ADDSCALAR);
}*/
void CBasicMath::Sub(double *fFirst, double *fSec, int iSize, double fFactor)
{
if(fFactor != 0)
{
int i;
for(i = 0; i < iSize; i++)
fFirst[i] -= fFactor * fSec[i];
}
else
{
int i;
for(i = 0; i < iSize; i++)
fFirst[i] -= fSec[i];
}
}
/*void CBasicMath::Sub(ISpectrum &dispFirst, ISpectrum &dispSec, int iMode)
{
CDoubleMonitoredArrayData dmadData(dispFirst.Data);
double* fData = dmadData.GetBuffer();
CDoubleMonitoredArrayData dmadSec(dispSec.Data);
double* fSec = dmadSec.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispFirst, iMeaStart, iMeaEnd);
if(dispSec.GetNChannel() < iMeaEnd)
return;
double fCorrectFactor = GetCorrectFactor(dispFirst, dispSec, iMode);
Sub(&fData[iMeaStart], &fSec[iMeaStart], iSize, fCorrectFactor);
dispFirst.Data = dmadData.GetMonitoredArray();
AddHistory(dispFirst, SUBSPEC);
}
*/
void CBasicMath::Sub(double *fFirst, int iSize, double fConst)
{
int i;
for(i = 0; i < iSize; i++)
fFirst[i] -= fConst;
}
/*void CBasicMath::Sub(ISpectrum &dispFirst, double fConst)
{
CDoubleMonitoredArrayData dmadData(dispFirst.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispFirst, iMeaStart, iMeaEnd);
Sub(&fData[iMeaStart], iSize, fConst);
dispFirst.Data = dmadData.GetMonitoredArray();
AddHistory(dispFirst, SUBSCALAR);
}
*/
void CBasicMath::Mul(double *fFirst, double *fSec, int iSize, double fFactor)
{
if(fFactor != 0)
{
int i;
for(i = 0; i < iSize; i++)
fFirst[i] *= fFactor * fSec[i];
}
else
{
int i;
for(i = 0; i < iSize; i++)
fFirst[i] *= fSec[i];
}
}
/*void CBasicMath::Mul(ISpectrum &dispFirst, ISpectrum &dispSec, int iMode)
{
CDoubleMonitoredArrayData dmadData(dispFirst.Data);
double* fData = dmadData.GetBuffer();
CDoubleMonitoredArrayData dmadSec(dispSec.Data);
double* fSec = dmadSec.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispFirst, iMeaStart, iMeaEnd);
if(dispSec.GetNChannel() < iMeaEnd)
return;
double fCorrectFactor = GetCorrectFactor(dispFirst, dispSec, iMode);
Mul(&fData[iMeaStart], &fSec[iMeaStart], iSize, fCorrectFactor);
dispFirst.Data = dmadData.GetMonitoredArray();
AddHistory(dispFirst, MULSPEC);
}*/
void CBasicMath::Mul(double *fFirst, int iSize, double fConst)
{
int i;
for(i = 0; i < iSize; i++)
fFirst[i] *= fConst;
}
/*void CBasicMath::Mul(ISpectrum &dispFirst, double fConst)
{
CDoubleMonitoredArrayData dmadData(dispFirst.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispFirst, iMeaStart, iMeaEnd);
Mul(&fData[iMeaStart], iSize, fConst);
dispFirst.Data = dmadData.GetMonitoredArray();
AddHistory(dispFirst, MULSCALAR);
}*/
void CBasicMath::Div(double *fFirst, double *fSec, int iSize, double fFactor)
{
if(fFactor != 0)
{
int i;
for(i = 0; i < iSize; i++)
if(fSec[i] != 0)
fFirst[i] /= fFactor * fSec[i];
else
fFirst[i] = 0;
}
else
{
int i;
for(i = 0; i < iSize; i++)
if(fSec[i] != 0)
fFirst[i] /= fSec[i];
else
fFirst[i] = 0;
}
}
/*void CBasicMath::Div(ISpectrum &dispFirst, ISpectrum &dispSec, int iMode)
{
CDoubleMonitoredArrayData dmadData(dispFirst.Data);
double* fData = dmadData.GetBuffer();
CDoubleMonitoredArrayData dmadSec(dispSec.Data);
double* fSec = dmadSec.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispFirst, iMeaStart, iMeaEnd);
if(dispSec.GetNChannel() < iMeaEnd)
return;
double fCorrectFactor = GetCorrectFactor(dispFirst, dispSec, iMode);
Div(&fData[iMeaStart], &fSec[iMeaStart], iSize, fCorrectFactor);
dispFirst.Data = dmadData.GetMonitoredArray();
AddHistory(dispFirst, DIVSPEC);
}*/
void CBasicMath::Div(double *fFirst, int iSize, double fConst)
{
if(fConst == 0)
return;
int i;
for(i = 0; i < iSize; i++)
fFirst[i] /= fConst;
}
/*void CBasicMath::Div(ISpectrum &dispFirst, double fConst)
{
CDoubleMonitoredArrayData dmadData(dispFirst.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispFirst, iMeaStart, iMeaEnd);
Div(&fData[iMeaStart], iSize, fConst);
dispFirst.Data = dmadData.GetMonitoredArray();
AddHistory(dispFirst, DIVSCALAR);
}*/
bool CBasicMath::ShiftAndSqueeze(CVector& vXData, CVector& vYData, double fOrigin, double fShift, double fSqueeze)
{
MATHFIT_ASSERT(vXData.GetSize() == vYData.GetSize());
bool bResult = false;
try
{
CCubicSplineFunction cbfSpec(vXData, vYData);
int i;
for(i = 0; i < vXData.GetSize(); i++)
{
const double fXValue = (vXData.GetAt(i) - fOrigin) * fSqueeze + fShift + fOrigin;
vYData.SetAt(i, cbfSpec.GetValue(fXValue));
}
bResult = true;
}
catch(CAssertFailedException e)
{
e.ReportError();
}
catch(CFitException e)
{
}
return bResult;
}
/*bool CBasicMath::ShiftAndSqueeze(ISpectrum &dispSpec, double fShift, double fSqueeze)
{
CDoubleMonitoredArrayData dmadData(dispSpec.Data);
double* fData = dmadData.GetBuffer();
int iMeaStart, iMeaEnd, iSize;
// calculate the real size
iSize = CheckLimits(dispSpec, iMeaStart, iMeaEnd);
CVector vXData(dispSpec.GetNChannel());
vXData.Wedge(0, 1);
CVector vYData(fData, dispSpec.GetNChannel(), 1, false);
bool bRet = ShiftAndSqueeze(vXData, vYData, vXData.GetAt(iMeaStart), fShift, fSqueeze);
dispSpec.Data = dmadData.GetMonitoredArray();
AddHistory(dispSpec, SHIFTSQUEEZE);
return(bRet);
}*/
/**
* FitRes2ppb
*
* Converts the result of the non linear dfit given in molecules/cm^2 into
* ppb using the following formular:
*
* The gas formular gives us the number or molecules in the volume:
* n = p * V / (Rm * T)
* where Rm is the universal gas constant which is given by:
* Rm = pn * Vmn / Tn
* pn = 101.325 kPa
* Vmn = 22.413e3 cm^3/mol
* Tn = 273.15 K
*
* The number of molecules of the fit result is given by:
* nfit = fit result * 1 cm^2 = fit result
*
* The number of molecules in the gas cylinder is given by:
* ngas = n * avogadro
* where avogadro is 6.022137e23
*
* So to get ppb (particles per billion) we now just build the releation between the
* two amounts of molecules:
*
* ppb = nfit * 1e9 / ngas
*
* @param fFitResult The concentration in molecules/cm^2
* @param fLightPathLength The length of the light path in cm
* @param fTemperature The temperature in Celcius degrees
* @param fPreasure The preasure in hPa
*
* @return the concentration in ppb
*/
double CBasicMath::FitRes2ppb(double fFitResult, double fLightPathLength, double fTemperature, double fPreasure)
{
const double fRm = 101.325 * 22.413e3 / 273.15; // universal gas constant
const double fT = fTemperature * 273.15; // convert from Celcuis to Kelvin
const double fP = fPreasure / 10; // convert from hPa to kPa!
const double fV = 1 * 1 * fLightPathLength; // normalized volume of cm^2 * light path length
// get the mol number of the current gas cyclinder
double fMol = fP * fV / (fRm * fT);
// determine the number of molcules from the fit divided by the
// whole number of molecules in the volume
double fPPB = fFitResult / (fMol * 6.022137e14);
return(fPPB);
}
/**
* FitRes2MicroGrammPerCubicMeter
*
* Converts the result of the non linear dfit given in molecules/cm^2 into
* µg/m^3 using the following formular:
*
* c = fit * mol.-weight * 1e6 / (light path length * avogadro * 1e-6)
* where avogadro is 6.022137e23
*
* @param fFitResult The concentration in molecules/cm^2
* @param fLightPathLength The length of the light path in cm
* @param fMolecularWeight The molecular weight in g/mol
*
* @return the concentration in µg/cm^3
*/
double CBasicMath::FitRes2MicroGrammPerCubicMeter(double fFitResult, double fLightPathLength, double fMolecularWeight)
{
return(fFitResult * fMolecularWeight / (fLightPathLength * 6.022137e11));
}
/*void CBasicMath::PolyFill(ISpectrum &dispSpec, int iStartChannel, int iNumChannels, double *fPolyCoeff, int iPolyDegree)
{
int iMaxChannel = dispSpec.GetNChannel();
CDoubleMonitoredArrayData dmadData(iMaxChannel);
double* fData = dmadData.GetBuffer();
int i;
for(i = 0; i < iNumChannels; i++)
{
int iChannel = iStartChannel + i - 1;
if(iChannel < iMaxChannel)
fData[iChannel] = CalcPoly(fPolyCoeff, iPolyDegree, iChannel);
else
break;
}
// write the new data set back to the spectrum
dispSpec.Data = dmadData.GetMonitoredArray();
AddHistory(dispSpec, POLYFILL);
}*/
/*double CBasicMath::GetCorrectFactor(ISpectrum &dispFirst, ISpectrum &dispSec, int iMode)
{
switch(iMode)