[1] | 1 | //STARTHEADER |
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| 2 | // $Id: RangeDefinition.cc 859 2012-11-28 01:49:23Z pavel $ |
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| 3 | // |
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| 4 | // Copyright (c) 2005-2011, Matteo Cacciari, Gavin P. Salam and Gregory Soyez |
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| 5 | // |
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| 6 | //---------------------------------------------------------------------- |
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| 7 | // This file is part of FastJet. |
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| 8 | // |
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| 9 | // FastJet is free software; you can redistribute it and/or modify |
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| 10 | // it under the terms of the GNU General Public License as published by |
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| 11 | // the Free Software Foundation; either version 2 of the License, or |
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| 12 | // (at your option) any later version. |
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| 13 | // |
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| 14 | // The algorithms that underlie FastJet have required considerable |
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| 15 | // development and are described in hep-ph/0512210. If you use |
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| 16 | // FastJet as part of work towards a scientific publication, please |
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| 17 | // include a citation to the FastJet paper. |
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| 18 | // |
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| 19 | // FastJet is distributed in the hope that it will be useful, |
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| 20 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 21 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 22 | // GNU General Public License for more details. |
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| 23 | // |
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| 24 | // You should have received a copy of the GNU General Public License |
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| 25 | // along with FastJet. If not, see <http://www.gnu.org/licenses/>. |
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| 26 | //---------------------------------------------------------------------- |
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| 27 | //ENDHEADER |
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| 28 | |
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| 29 | #include "fastjet/RangeDefinition.hh" |
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| 30 | |
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| 31 | FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh |
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| 32 | |
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| 33 | using namespace std; |
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| 34 | |
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| 35 | LimitedWarning RangeDefinition::_warnings_deprecated; |
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| 36 | |
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| 37 | // calculate, and set in _total_area, the area with a numerical test |
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| 38 | // takes a reasonable time with rapmax = 10, npoints = 100 |
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| 39 | void RangeDefinition::_numerical_total_area(double rapmax, int npoints) { |
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| 40 | |
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| 41 | int count = 0; |
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| 42 | double deltaphi = twopi/double(npoints); |
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| 43 | double deltarap = 2.0*rapmax/double(npoints); |
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| 44 | double phi = 0.0; |
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| 45 | for(int i = 0; i < npoints; i++) { |
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| 46 | double rap = -rapmax; |
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| 47 | for (int j = 0; j < npoints; j++) { |
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| 48 | if ( is_in_range(rap,phi) ) { count++; } |
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| 49 | rap += deltarap; |
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| 50 | } |
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| 51 | phi += deltaphi; |
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| 52 | } |
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| 53 | |
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| 54 | _total_area = double(count)/double(npoints*npoints)*2.0*twopi*rapmax; |
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| 55 | } |
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| 56 | |
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| 57 | |
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| 58 | // the use of RangeDefinition is deprecated since FastJet version |
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| 59 | // 3.0 onwards. Please use Selector instead. |
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| 60 | // RangeDefinition is only provided for backward compatibility |
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| 61 | // reasons and is not guaranteed to work in future releases of |
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| 62 | // FastJet. |
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| 63 | void RangeDefinition::_warn_deprecated() const{ |
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| 64 | _warnings_deprecated.warn("The use of RangeDefinition is deprecated since FastJet version 3.0 onwards. Please consider using Selector (defined in fastjet/Selector.hh) instead. There is no guarantee that support for RangeDefinition will be provided in future releases of FastJet."); |
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| 65 | } |
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| 66 | |
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| 67 | FASTJET_END_NAMESPACE |
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