Gabriele Cosmo
124 lines
4.4 KiB
C++
124 lines
4.4 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// Author: Ivana Hrivnacova, 22/08/2013 (ivana@ipno.in2p3.fr)
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#include "G4BinScheme.hh"
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#include "G4AnalysisUtilities.hh"
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namespace G4Analysis
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{
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//_____________________________________________________________________________
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G4BinScheme GetBinScheme(const G4String& binSchemeName)
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{
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if (binSchemeName == "linear") return G4BinScheme::kLinear;
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if (binSchemeName == "log") return G4BinScheme::kLog;
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if (binSchemeName == "user") return G4BinScheme::kUser;
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// No other name is supported
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Warn("\"" + binSchemeName + "\" binning scheme is not supported.\n"
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"Linear binning will be applied.", kNamespaceName, "GetBinScheme");
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return G4BinScheme::kLinear;
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}
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//_____________________________________________________________________________
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void ComputeEdges(G4int nbins, G4double xmin, G4double xmax,
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G4double unit, G4Fcn fcn, G4BinScheme binScheme,
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std::vector<G4double>& edges)
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{
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// Compute edges from parameters
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if ( binScheme == G4BinScheme::kUser ) {
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// This call should never happen for user bin scheme
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Warn("There is no need to compute edges for G4BinScheme::kUser\n"
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"Call is ignored.", kNamespaceName, "GetBinScheme");
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return;
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}
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if (unit == 0.) {
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// Should never happen
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Warn("Illegal unit value (0), 1. will be used instead",
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kNamespaceName, "ComputeEdges");
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unit = 1.;
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}
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if (nbins == 0) {
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// Should never happen
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Warn("Illegal number of nbins value (0), call will be ignored",
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kNamespaceName, "ComputeEdges");
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return;
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}
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// Apply units
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auto xumin = xmin/unit;
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auto xumax = xmax/unit;
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if ( binScheme == G4BinScheme::kLinear ) {
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auto dx = (fcn(xumax) - fcn(xumin) ) / nbins;
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auto binValue = fcn(xumin);
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while ( G4int(edges.size()) <= nbins ) { // Loop checking, 23.06.2015, I. Hrivnacova
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edges.push_back(binValue);
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binValue += dx;
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}
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return;
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}
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if ( binScheme == G4BinScheme::kLog ) {
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// do not apply fcn
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auto dlog = (std::log10(xumax) - std::log10(xumin))/ nbins;
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auto dx = std::pow(10, dlog);
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auto binValue = xumin;
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while ( G4int(edges.size()) <= nbins ) { // Loop checking, 23.06.2015, I. Hrivnacova
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edges.push_back(binValue);
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binValue *= dx;
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}
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return;
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}
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}
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//_____________________________________________________________________________
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void ComputeEdges(const std::vector<G4double>& edges,
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G4double unit, G4Fcn fcn,
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std::vector<G4double>& newBins)
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{
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// Apply function & unit to defined edges
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if (unit == 0.) {
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// Should never happen
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Warn("Illegal unit value (0), 1. will be used instead",
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kNamespaceName, "ComputeEdges");
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unit = 1.;
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}
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for (auto element : edges) {
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newBins.push_back(fcn(element/unit));
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}
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}
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}
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