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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