musrfit/src/external/libPhotoMeissner/classes/PStartupHandler_PM.cpp

510 lines
14 KiB
C++

/***************************************************************************
PStartupHandler_PM.cpp
Author: Andreas Suter
e-mail: andreas.suter@psi.ch
***************************************************************************/
/***************************************************************************
* Copyright (C) 2013 by Andreas Suter *
* andreas.suter@psi.ch *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <cmath>
#include <iostream>
#include <fstream>
using namespace std;
#include "PStartupHandler_PM.h"
//--------------------------------------------------------------------------
// Constructor
//--------------------------------------------------------------------------
/**
*
*/
PRgeHandler_PM::PRgeHandler_PM(const PStringVector &rgeDataPathList, const PDoubleVector &rgeDataEnergyList)
{
fIsValid = false;
fIsValid = LoadRgeData(rgeDataPathList, rgeDataEnergyList);
}
//--------------------------------------------------------------------------
// Destructor
//--------------------------------------------------------------------------
/**
*
*/
PRgeHandler_PM::~PRgeHandler_PM()
{
fRgeDataList.clear();
}
//--------------------------------------------------------------------------
// GetRgeEnergyIndex
//--------------------------------------------------------------------------
/**
*
* \param energy in (keV)
*/
Int_t PRgeHandler_PM::GetRgeEnergyIndex(const Double_t energy)
{
Int_t idx = -1;
for (UInt_t i=0; i<fRgeDataList.size(); i++) {
if (energy == fRgeDataList[i].energy) {
idx = i;
break;
}
}
return idx;
}
//--------------------------------------------------------------------------
// GetRgeValue
//--------------------------------------------------------------------------
/**
*
* \param energy in (keV)
* \param dist in (nm)
*/
Double_t PRgeHandler_PM::GetRgeValue(const Int_t index, const Double_t dist)
{
Double_t rgeVal = 0.0;
UInt_t distIdx = (UInt_t)(dist/(fRgeDataList[index].stoppingDistance[1]-fRgeDataList[index].stoppingDistance[0]));
if ((distIdx >= fRgeDataList[index].stoppingDistance.size()) || (distIdx < 0)) {
rgeVal = 0.0;
} else {
rgeVal = fRgeDataList[index].stoppingAmplitude[distIdx] +
(fRgeDataList[index].stoppingAmplitude[distIdx+1] - fRgeDataList[index].stoppingAmplitude[distIdx]) *
(dist-fRgeDataList[index].stoppingDistance[distIdx])/(fRgeDataList[index].stoppingDistance[distIdx+1]-fRgeDataList[index].stoppingDistance[distIdx]);
}
return rgeVal;
}
//--------------------------------------------------------------------------
// GetRgeValue
//--------------------------------------------------------------------------
/**
*
* \param energy in (keV)
* \param dist in (nm)
*/
Double_t PRgeHandler_PM::GetRgeValue(const Double_t energy, const Double_t dist)
{
// check if energy is present in rge data list
Int_t idx = -1;
for (UInt_t i=0; i<fRgeDataList.size(); i++) {
if (energy == fRgeDataList[i].energy) {
idx = i;
break;
}
}
// energy not found
if (idx == -1)
return -1.0;
return GetRgeValue(idx, dist);
}
//--------------------------------------------------------------------------
// LoadRgeData
//--------------------------------------------------------------------------
/**
*
*/
Bool_t PRgeHandler_PM::LoadRgeData(const PStringVector &rgeDataPathList, const PDoubleVector &rgeDataEnergyList)
{
ifstream fin;
PRgeData_PM data;
Int_t idx=0;
TString dataName, tstr;
char line[512];
int result;
double dist, val;
for (UInt_t i=0; i<rgeDataPathList.size(); i++) {
// open rge-file for reading
fin.open(rgeDataPathList[i].Data(), iostream::in);
if (!fin.is_open()) {
cerr << endl << "PRgeHandler_PM::LoadRgeData **ERROR**";
cerr << endl << " Could not open file " << rgeDataPathList[i].Data();
cerr << endl;
return false;
}
// keep energy (in keV)
data.energy = rgeDataEnergyList[i]/1000.0;
// read msr-file
idx = 0;
while (!fin.eof()) {
// read a line
fin.getline(line, sizeof(line));
idx++;
// ignore first line
if (idx <= 1)
continue;
// ignore empty lines
tstr = line;
if (tstr.IsWhitespace())
continue;
// get values
result = sscanf(line, "%lf %lf", &dist, &val);
// check if data are valid
if (result != 2) {
fin.close();
return false;
}
// feed fRgeDataList
data.stoppingDistance.push_back(dist/10.0); // keep distancies in (nm)
data.stoppingAmplitude.push_back(val);
}
// normalize stopping distribution
Double_t norm = 0.0;
for (UInt_t j=0; j<data.stoppingAmplitude.size(); j++)
norm += data.stoppingAmplitude[j];
norm *= (data.stoppingDistance[1] - data.stoppingDistance[0]);
for (UInt_t j=0; j<data.stoppingAmplitude.size(); j++)
data.stoppingAmplitude[j] /= norm;
// keep data
fRgeDataList.push_back(data);
// clean up
data.stoppingAmplitude.clear();
data.stoppingDistance.clear();
fin.close();
}
return true;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ClassImpQ(PStartupHandler_PM)
//--------------------------------------------------------------------------
// Constructor
//--------------------------------------------------------------------------
/**
*
*/
PStartupHandler_PM::PStartupHandler_PM()
{
fIsValid = true;
fStartupFileFound = false;
fStartupFilePath = "";
// get default path (for the moment only linux like)
char startup_path_name[512];
char *home_path=0;
// check if the startup file is found in the current directory
strcpy(startup_path_name, "./photoMeissner_startup.xml");
if (StartupFileExists(startup_path_name)) {
fStartupFileFound = true;
fStartupFilePath = TString(startup_path_name);
} else { // startup file is not found in the current directory
cout << endl << ">> PStartupHandler_PM(): **WARNING** Couldn't find photoMeissner_startup.xml in the current directory, will try default one." << endl;
home_path = getenv("HOME");
snprintf(startup_path_name, sizeof(startup_path_name), "%s/.musrfit/external/photoMeissner_startup.xml", home_path);
if (StartupFileExists(startup_path_name)) {
fStartupFileFound = true;
fStartupFilePath = TString(startup_path_name);
}
}
// init RGE handler
fRgeHandler = 0;
}
//--------------------------------------------------------------------------
// OnStartDocument
//--------------------------------------------------------------------------
/**
* <p>
*/
void PStartupHandler_PM::OnStartDocument()
{
fKey = eEmpty;
}
//--------------------------------------------------------------------------
// OnEndDocument
//--------------------------------------------------------------------------
/**
* <p>
*/
void PStartupHandler_PM::OnEndDocument()
{
if (!fIsValid)
return;
// generate the file path list
TString str;
for (unsigned int i=0; i<fRgeDataEnergyList.size(); i++) {
str = fRgePath;
str += fRgeDataEnergyList[i];
str += ".rge";
fRgeFilePathList.push_back(str);
}
fRgeHandler = new PRgeHandler_PM(fRgeFilePathList, fRgeDataEnergyList);
if (fRgeHandler == 0) { // severe problem
fIsValid = false;
cerr << endl << ">> PStartupHandler_PM::OnEndDocument(): **ERROR** couldn't invoke RGE handler." << endl << endl;
return;
}
if (!fRgeHandler->IsValid()) { // severe problem
fIsValid = false;
cerr << endl << ">> PStartupHandler_PM::OnEndDocument(): **ERROR** RGE handler not valid." << endl << endl;
return;
}
}
//--------------------------------------------------------------------------
// OnStartElement
//--------------------------------------------------------------------------
/**
* <p>
*
* \param str
* \param attributes
*/
void PStartupHandler_PM::OnStartElement(const char *str, const TList *attributes)
{
if (!strcmp(str, "data_path")) {
fKey = eDataPath;
} else if (!strcmp(str, "energy")) {
fKey = eEnergy;
}
}
//--------------------------------------------------------------------------
// OnEndElement
//--------------------------------------------------------------------------
/**
* <p>
*
* \param str
*/
void PStartupHandler_PM::OnEndElement(const char *str)
{
fKey = eEmpty;
}
//--------------------------------------------------------------------------
// OnCharacters
//--------------------------------------------------------------------------
/**
* <p>
*
* \param str
*/
void PStartupHandler_PM::OnCharacters(const char *str)
{
TString tstr;
Double_t dval;
switch (fKey) {
case eDataPath:
fRgePath = str;
break;
case eEnergy:
tstr = str;
if (tstr.IsFloat()) {
dval = tstr.Atof();
fRgeDataEnergyList.push_back(dval);
} else {
cerr << endl << "PStartupHandler_PM::OnCharacters: **ERROR** when finding energy:";
cerr << endl << "\"" << str << "\" is not a floating point number, will ignore it.";
cerr << endl;
}
break;
default:
break;
}
}
//--------------------------------------------------------------------------
// OnComment
//--------------------------------------------------------------------------
/**
* <p>
*
* \param str
*/
void PStartupHandler_PM::OnComment(const char *str)
{
// nothing to be done for now
}
//--------------------------------------------------------------------------
// OnWarning
//--------------------------------------------------------------------------
/**
* <p>
*
* \param str
*/
void PStartupHandler_PM::OnWarning(const char *str)
{
cerr << endl << "PStartupHandler_PM **WARNING** " << str;
cerr << endl;
}
//--------------------------------------------------------------------------
// OnError
//--------------------------------------------------------------------------
/**
* <p>
*
* \param str
*/
void PStartupHandler_PM::OnError(const char *str)
{
cerr << endl << "PStartupHandler_PM **ERROR** " << str;
cerr << endl;
}
//--------------------------------------------------------------------------
// OnFatalError
//--------------------------------------------------------------------------
/**
* <p>
*
* \param str
*/
void PStartupHandler_PM::OnFatalError(const char *str)
{
cerr << endl << "PStartupHandler_PM **FATAL ERROR** " << str;
cerr << endl;
}
//--------------------------------------------------------------------------
// OnCdataBlock
//--------------------------------------------------------------------------
/**
* <p>
*
* \param str
*/
void PStartupHandler_PM::OnCdataBlock(const char *str, Int_t len)
{
// nothing to be done for now
}
//--------------------------------------------------------------------------
// GetRgeEnergyIndex
//--------------------------------------------------------------------------
/**
* <p>
*
* \param energy
*/
Int_t PStartupHandler_PM::GetRgeEnergyIndex(const Double_t energy)
{
Int_t result = -1;
if (fIsValid)
result = fRgeHandler->GetRgeEnergyIndex(energy);
return result;
}
//--------------------------------------------------------------------------
// GetRgeValue
//--------------------------------------------------------------------------
/**
* <p>
*
* \param energy
* \param dist
*/
Double_t PStartupHandler_PM::GetRgeValue(const Double_t energy, const Double_t dist)
{
Double_t result = 0.0;
if (fIsValid)
result = fRgeHandler->GetRgeValue(energy, dist);
return result;
}
//--------------------------------------------------------------------------
// GetRgeValue
//--------------------------------------------------------------------------
/**
* <p>
*
* \param index
* \param dist
*/
Double_t PStartupHandler_PM::GetRgeValue(const Int_t index, const Double_t dist)
{
Double_t result = 0.0;
if (fIsValid)
result = fRgeHandler->GetRgeValue(index, dist);
return result;
}
//--------------------------------------------------------------------------
// StartupFileExists
//--------------------------------------------------------------------------
/**
* <p>
*
*/
bool PStartupHandler_PM::StartupFileExists(char *fln)
{
bool result = false;
ifstream ifile(fln);
if (ifile.fail()) {
result = false;
} else {
result = true;
ifile.close();
}
return result;
}
// -------------------------------------------------------------------------
// end
// -------------------------------------------------------------------------