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<div class="title">protocones.cpp</div> </div>
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<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// File: protocones.cpp //</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Description: source file for stable cones determination (Cstable_cones) //</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// This file is part of the SISCone project. //</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// For more details, see http://projects.hepforge.org/siscone //</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Copyright (c) 2006 Gavin Salam and Gregory Soyez //</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// This program is free software; you can redistribute it and/or modify //</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// it under the terms of the GNU General Public License as published by //</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// the Free Software Foundation; either version 2 of the License, or //</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// (at your option) any later version. //</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// This program is distributed in the hope that it will be useful, //</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of //</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// GNU General Public License for more details. //</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// You should have received a copy of the GNU General Public License //</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// along with this program; if not, write to the Free Software //</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA //</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// $Revision:: 322 $//</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// $Date:: 2011-11-15 10:12:36 +0100 (Tue, 15 Nov 2011) $//</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">/*******************************************************</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * Introductory note: *</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * Since this file has many member functions, we have *</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * structured them in categories: *</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * INITIALISATION FUNCTIONS *</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * - ctor() *</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * - ctor(particle_list) *</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * - dtor() *</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * - init(particle_list) *</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * ALGORITHM MAIN ENTRY *</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * - get_stable_cone(radius) *</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * ALGORITHM MAIN STEPS *</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * - init_cone() *</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * - test_cone() *</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * - update_cone() *</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * - proceed_with_stability() *</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * ALGORITHM MAIN STEPS FOR COCIRCULAR SITUATIONS *</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * - cocircular_pt_less(v1, v2) *</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * - prepare_cocircular_list() *</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * - test_cone_cocircular() *</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * - test_stability(candidate, border_list) *</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * - updat_cone_cocircular() *</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> * RECOMPUTATION OF CONE CONTENTS *</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> * - compute_cone_contents() *</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> * - recompute_cone_contents() *</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * - recompute_cone_contents_if_needed() *</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * VARIOUS TOOLS *</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * - circle_intersect() *</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * - is_inside() *</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * - abs_dangle() *</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> *******************************************************/</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#include "protocones.h"</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#include "siscone_error.h"</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#include "<a class="code" href="defines_8h.html">defines.h</a>"</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#include <math.h></span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#include <iostream></span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#include "circulator.h"</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#include <algorithm></span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">namespace </span>siscone{</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">using namespace </span>std;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment">/**********************************************************************</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> * Cstable_cones implementation *</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> * Computes the list of stable comes from a particle list. *</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> * This class does the first fundamental task of te cone algorithm: *</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> * it is used to compute the list of stable cones given a list *</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> * of particles. *</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> **********************************************************************/</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">// INITIALISATION FUNCTIONS //</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">// - ctor() //</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// - ctor(particle_list) //</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment">// - dtor() //</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment">// - init(particle_list) //</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"></span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment">// default ctor</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">//--------------</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="code" href="classsiscone_1_1Cstable__cones.html#a115f739609572b0e21621209c305e3da"> 89</a></span> <a class="code" href="classsiscone_1_1Cstable__cones.html#a115f739609572b0e21621209c305e3da" title="default ctor">Cstable_cones::Cstable_cones</a>(){</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  nb_tot = 0;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  hc = NULL;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// ctor with initialisation</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment">//--------------------------</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <a class="code" href="classsiscone_1_1Cstable__cones.html#a115f739609572b0e21621209c305e3da" title="default ctor">Cstable_cones::Cstable_cones</a>(vector<Cmomentum> &_particle_list)</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  : <a class="code" href="classsiscone_1_1Cvicinity.html" title="list of element in the vicinity of a parent.">Cvicinity</a>(_particle_list){</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#a0fba255c0d0410eea111d7a2ee37a0f6" title="total number of tested cones">nb_tot</a> = 0;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a> = NULL;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> }</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// default dtor</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment">//--------------</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="code" href="classsiscone_1_1Cstable__cones.html#ad5d016c69e80a71e479b7aa7953016a3"> 105</a></span> <a class="code" href="classsiscone_1_1Cstable__cones.html#ad5d016c69e80a71e479b7aa7953016a3" title="default dtor">Cstable_cones::~Cstable_cones</a>(){</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">if</span> (<a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>!=NULL) <span class="keyword">delete</span> <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> }</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> * initialisation</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> * - _particle_list list of particles</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment"> * - _n number of particles</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"> *********************************************************************/</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"><a class="code" href="classsiscone_1_1Cstable__cones.html#a0f706473e304e43d21cbb23e86a299e1"> 114</a></span> <span class="keywordtype">void</span> <a class="code" href="classsiscone_1_1Cstable__cones.html#a0f706473e304e43d21cbb23e86a299e1" title="initialisation">Cstable_cones::init</a>(vector<Cmomentum> &_particle_list){</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="comment">// check already allocated mem</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (<a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>!=NULL){</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">delete</span> <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">if</span> (<a class="code" href="classsiscone_1_1Cstable__cones.html#a14098a86205362ec23a9687a9ea0a484" title="list of stable cones">protocones</a>.size()!=0)</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#a14098a86205362ec23a9687a9ea0a484" title="list of stable cones">protocones</a>.clear();</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  multiple_centre_done.clear();</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// initialisation</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="classsiscone_1_1Cvicinity.html#ac7bf21da3e958f1b6a328524f413e5fb" title="set the particle_list">set_particle_list</a>(_particle_list);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> }</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment">// ALGORITHM MAIN ENTRY //</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment">// - get_stable_cone(radius) //</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"></span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment"> * compute stable cones.</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment"> * This function really does the job i.e. computes</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"> * the list of stable cones (in a seedless way)</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> * - _radius: radius of the cones</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"> * The number of stable cones found is returned</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> *********************************************************************/</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"><a class="code" href="classsiscone_1_1Cstable__cones.html#a93863c2efff4a836f2229ffcb34d5729"> 141</a></span> <span class="keywordtype">int</span> <a class="code" href="classsiscone_1_1Cstable__cones.html#a93863c2efff4a836f2229ffcb34d5729" title="compute stable cones.">Cstable_cones::get_stable_cones</a>(<span class="keywordtype">double</span> _radius){</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordtype">int</span> p_idx;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// check if everything is correctly initialised</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (<a class="code" href="classsiscone_1_1Cvicinity.html#a0be1e7c3ad643f15696db076c9c073a4" title="number of particles">n_part</a>==0){</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#a355f508374e2e726c299b2abf6afa771" title="cone radius">R</a> = _radius;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#a15cdf9f5025de7208fe4cf6bb1f912f8" title="cone radius SQUARED">R2</a> = <a class="code" href="classsiscone_1_1Cstable__cones.html#a355f508374e2e726c299b2abf6afa771" title="cone radius">R</a>*<a class="code" href="classsiscone_1_1Cstable__cones.html#a355f508374e2e726c299b2abf6afa771" title="cone radius">R</a>;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// allow hash for cones candidates</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a> = <span class="keyword">new</span> <a class="code" href="classsiscone_1_1hash__cones.html" title="list of cones candidates.">hash_cones</a>(<a class="code" href="classsiscone_1_1Cvicinity.html#a0be1e7c3ad643f15696db076c9c073a4" title="number of particles">n_part</a>, <a class="code" href="classsiscone_1_1Cstable__cones.html#a15cdf9f5025de7208fe4cf6bb1f912f8" title="cone radius SQUARED">R2</a>);</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// browse all particles</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">for</span> (p_idx=0;p_idx<<a class="code" href="classsiscone_1_1Cvicinity.html#a0be1e7c3ad643f15696db076c9c073a4" title="number of particles">n_part</a>;p_idx++){</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// step 0: compute the child list CL.</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// Note that this automatically sets the parent P</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <a class="code" href="classsiscone_1_1Cvicinity.html#a9fd74b26b76f20dd268fd0b14a055d5a" title="build the vicinity list from the list of points.">build</a>(&<a class="code" href="classsiscone_1_1Cvicinity.html#a4022e1f54ec4276715fb2425030b07a4" title="the list of particles">plist</a>[p_idx], 2.0*R);</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// special case: </span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// if the vicinity is empty, the parent particle is a </span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// stable cone by itself. Add it to protocones list.</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (<a class="code" href="classsiscone_1_1Cvicinity.html#a69ad8432e860412e7a7974e06ee45f5f" title="number of elements in vicinity">vicinity_size</a>==0){</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#a14098a86205362ec23a9687a9ea0a484" title="list of stable cones">protocones</a>.push_back(*<a class="code" href="classsiscone_1_1Cvicinity.html#a02b7b429a44af32601d5d951476883a6" title="parent vector">parent</a>);</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// step 1: initialise with the first cone candidate</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  init_cone();</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">do</span>{</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// step 2: test cone stability for that pair (P,C)</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  test_cone();</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// step 3: go to the next cone child candidate C</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  } <span class="keywordflow">while</span> (!update_cone());</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">return</span> proceed_with_stability();</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> }</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment">// ALGORITHM MAIN STEPS //</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment">// - init_cone() //</span></div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment">// - test_cone() //</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment">// - update_cone() //</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment">// - proceed_with_stability() //</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment"></span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> * initialise the cone.</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"> * We take the first particle in the angular ordering to compute </span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"> * this one</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"> * return 0 on success, 1 on error</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"> *********************************************************************/</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keywordtype">int</span> Cstable_cones::init_cone(){</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// The previous version of the algorithm was starting the </span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="comment">// loop around vicinity elements with the "most isolated" child.</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// given the nodist method to calculate the cone contents, we no</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// longer need to worry about which cone comes first...</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  first_cone=0;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="comment">// now make sure we have lists of the cocircular particles</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  prepare_cocircular_lists();</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">//TODO? deal with a configuration with only degeneracies ? </span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// The only possibility seems a regular hexagon with a parent point</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// in the centre. And this situation is by itself unclear.</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">// Hence, we do nothing here !</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="comment">// init set child C</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  centre = <a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>[first_cone];</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  child = centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a39b763dc25c8fae43982e0a8c8b0ba22" title="pointer to the second borderline particle">v</a>;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  centre_idx = first_cone;</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="comment">// build the initial cone (nodist: avoids calculating distances --</span></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="comment">// just deduces contents by circulating around all in/out operations)</span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="comment">// this function also sets the list of included particles</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  compute_cone_contents();</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  </div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> }</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> * test cones.</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> * We check if the cone(s) built with the present parent and child </span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> * are stable</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment"> * return 0 on success 1 on error</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment"> *********************************************************************/</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="keywordtype">int</span> Cstable_cones::test_cone(){</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  Creference weighted_cone_ref;</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">// depending on the side we are taking the child particle,</span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="comment">// we test different configuration.</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="comment">// Each time, two configurations are tested in such a way that</span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="comment">// all 4 possible cases (parent or child in or out the cone)</span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="comment">// are tested when taking the pair of particle parent+child</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="comment">// and child+parent.</span></div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="comment">// here are the tests entering the first series:</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="comment">// 1. check if the cone is already inserted</span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="comment">// 2. check cone stability for the parent and child particles</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  </div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">if</span> (centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#aed44dbe9065f593442981d1f53847eaf" title="true if angle on the positive side, false otherwise">side</a>){</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="comment">// test when both particles are not in the cone</span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="comment">// or when both are in.</span></div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// Note: for the totally exclusive case, test emptyness before</span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  cone_candidate = cone;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">if</span> (cone.<a class="code" href="classsiscone_1_1Cmomentum.html#a44980853567f863ca4178926f5f83444" title="reference number for the vector">ref</a>.<a class="code" href="classsiscone_1_1Creference.html#a8f680bf54a83b561bfd97a5654d9ae54" title="test non-emptyness">not_empty</a>()){</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>-><a class="code" href="classsiscone_1_1hash__cones.html#a4d4f5cf710dde0fa86766c4f7809fe35" title="insert a new candidate into the hash.">insert</a>(&cone_candidate, <a class="code" href="classsiscone_1_1Cvicinity.html#a02b7b429a44af32601d5d951476883a6" title="parent vector">parent</a>, child, <span class="keyword">false</span>, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  }</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  cone_candidate = cone;</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  cone_candidate+= *<a class="code" href="classsiscone_1_1Cvicinity.html#a02b7b429a44af32601d5d951476883a6" title="parent vector">parent</a> + *child;</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>-><a class="code" href="classsiscone_1_1hash__cones.html#a4d4f5cf710dde0fa86766c4f7809fe35" title="insert a new candidate into the hash.">insert</a>(&cone_candidate, <a class="code" href="classsiscone_1_1Cvicinity.html#a02b7b429a44af32601d5d951476883a6" title="parent vector">parent</a>, child, <span class="keyword">true</span>, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="comment">// test when 1! of the particles is in the cone</span></div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  cone_candidate = cone + *<a class="code" href="classsiscone_1_1Cvicinity.html#a02b7b429a44af32601d5d951476883a6" title="parent vector">parent</a>;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>-><a class="code" href="classsiscone_1_1hash__cones.html#a4d4f5cf710dde0fa86766c4f7809fe35" title="insert a new candidate into the hash.">insert</a>(&cone_candidate, parent, child, <span class="keyword">true</span>, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  cone_candidate = cone + *child;</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>-><a class="code" href="classsiscone_1_1hash__cones.html#a4d4f5cf710dde0fa86766c4f7809fe35" title="insert a new candidate into the hash.">insert</a>(&cone_candidate, parent, child, <span class="keyword">false</span>, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  }</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#a0fba255c0d0410eea111d7a2ee37a0f6" title="total number of tested cones">nb_tot</a>+=2;</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> }</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment"> * update the cone</span></div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="comment"> * go to the next child for that parent and update 'cone' appropriately</span></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment"> * return 0 if update candidate found, 1 otherwise</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment"> ***********************************************************************/</span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="keywordtype">int</span> Cstable_cones::update_cone(){</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="comment">// get the next child and centre</span></div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  centre_idx++;</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">if</span> (centre_idx==<a class="code" href="classsiscone_1_1Cvicinity.html#a69ad8432e860412e7a7974e06ee45f5f" title="number of elements in vicinity">vicinity_size</a>)</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  centre_idx=0;</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">if</span> (centre_idx==first_cone)</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// update the cone w.r.t. the old child</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="comment">// only required if the old child is entering inside in which</span></div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="comment">// case we need to add it. We also know that the child is </span></div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// inside iff its side is -.</span></div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordflow">if</span> (!centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#aed44dbe9065f593442981d1f53847eaf" title="true if angle on the positive side, false otherwise">side</a>){</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// update cone</span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  cone += (*child);</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="comment">// update info on particles inside</span></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a887edcdd74f318114094ed476731013d" title="variable to tell if the particle is inside or outside the cone">is_inside</a>-><a class="code" href="classsiscone_1_1Cvicinity__inclusion.html#a4cb329d95b1d7d7f8c7ff4e17225a1a4" title="flag for particle inclusion in the cone">cone</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">// update stability check quantities</span></div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  dpt += fabs(child->px)+fabs(child->py);</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  }</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> </div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="comment">// update centre and child to correspond to the new position</span></div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  centre = <a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>[centre_idx];</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  child = centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a39b763dc25c8fae43982e0a8c8b0ba22" title="pointer to the second borderline particle">v</a>;</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">// check cocircularity</span></div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// note that if cocirculaity is detected (i.e. if we receive 1</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="comment">// in the next test), we need to recall 'update_cone' directly</span></div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="comment">// since tests and remaining part of te update has been performed</span></div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="comment">//if (cocircular_check())</span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">if</span> (cocircular_check())</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">return</span> update_cone();</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">// update the cone w.r.t. the new child</span></div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// only required if the new child was already inside in which</span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">// case we need to remove it. We also know that the child is </span></div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="comment">// inside iff its side is +.</span></div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">if</span> ((centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#aed44dbe9065f593442981d1f53847eaf" title="true if angle on the positive side, false otherwise">side</a>) && (cone.<a class="code" href="classsiscone_1_1Cmomentum.html#a44980853567f863ca4178926f5f83444" title="reference number for the vector">ref</a>.<a class="code" href="classsiscone_1_1Creference.html#a8f680bf54a83b561bfd97a5654d9ae54" title="test non-emptyness">not_empty</a>())){</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="comment">// update cone</span></div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  cone -= (*child);</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// update info on particles inside</span></div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a887edcdd74f318114094ed476731013d" title="variable to tell if the particle is inside or outside the cone">is_inside</a>-><a class="code" href="classsiscone_1_1Cvicinity__inclusion.html#a4cb329d95b1d7d7f8c7ff4e17225a1a4" title="flag for particle inclusion in the cone">cone</a> = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">// update stability check quantities</span></div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  dpt += fabs(child->px)+fabs(child->py); <span class="comment">//child->perp2();</span></div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  }</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">// check that the addition and subtraction of vectors does</span></div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// not lead to too much rounding error</span></div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// for that, we compute the sum of pt modifications and of |pt|</span></div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">// since last recomputation and once the ratio overpasses a threshold</span></div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="comment">// we recompute vicinity.</span></div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keywordflow">if</span> ((dpt><a class="code" href="defines_8h.html#a8356d71215126e3ec1e93a841a908311" title="program name">PT_TSHOLD</a>*(fabs(cone.<a class="code" href="classsiscone_1_1Cmomentum.html#aa7fd6b3c50e92675b8b6aebb6abfebcc" title="x-momentum">px</a>)+fabs(cone.<a class="code" href="classsiscone_1_1Cmomentum.html#a9190b796e5713de49dfba956cfdbcf20" title="y-momentum">py</a>))) && (cone.<a class="code" href="classsiscone_1_1Cmomentum.html#a44980853567f863ca4178926f5f83444" title="reference number for the vector">ref</a>.<a class="code" href="classsiscone_1_1Creference.html#a8f680bf54a83b561bfd97a5654d9ae54" title="test non-emptyness">not_empty</a>())){</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  recompute_cone_contents();</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  }</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordflow">if</span> (cone.<a class="code" href="classsiscone_1_1Cmomentum.html#a44980853567f863ca4178926f5f83444" title="reference number for the vector">ref</a>.<a class="code" href="classsiscone_1_1Creference.html#a2899510572ccf38c2c297b2efb5a4a97" title="test emptyness">is_empty</a>()){</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  cone = Cmomentum();</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  dpt=0.0;</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">return</span> 0; </div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> }</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="comment"> * compute stability of all enumerated candidates.</span></div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> <span class="comment"> * For all candidate cones which are stable w.r.t. their border particles,</span></div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="comment"> * pass the last test: stability with quadtree intersection</span></div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="comment"> ************************************************************************/</span></div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="keywordtype">int</span> Cstable_cones::proceed_with_stability(){</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keywordtype">int</span> i; <span class="comment">// ,n;</span></div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  hash_element *elm;</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> </div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">//n=0;</span></div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">for</span> (i=0;i<=<a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>-><a class="code" href="classsiscone_1_1hash__cones.html#a2f10dd1f63f7048f931316e38eea77a0" title="number of occupied cells">mask</a>;i++){</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="comment">// test ith cell of the hash array</span></div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  elm = <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>-><a class="code" href="classsiscone_1_1hash__cones.html#a3116ea61b1cd7a61cd08a3a4bea0bba0" title="the cone data itself">hash_array</a>[i];</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> </div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="comment">// browse elements therein</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">while</span> (elm!=NULL){</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="comment">// test stability</span></div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">if</span> (elm->is_stable){</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="comment">// stability is not ensured by all pairs of "edges" already browsed</span></div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="preprocessor">#ifdef USE_QUADTREE_FOR_STABILITY_TEST</span></div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="preprocessor"></span> <span class="comment">// => testing stability with quadtree intersection</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">if</span> (quadtree->circle_intersect(elm->eta, elm->phi, <a class="code" href="classsiscone_1_1Cstable__cones.html#a15cdf9f5025de7208fe4cf6bb1f912f8" title="cone radius SQUARED">R2</a>)==elm->ref){</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="preprocessor"></span> <span class="comment">// => testing stability with the particle-list intersection</span></div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">if</span> (circle_intersect(elm->eta, elm->phi)==elm-><a class="code" href="classsiscone_1_1Creference.html#a9e21fdb505698e0ffc18e570a724d18b" title="actual data for the reference">ref</a>){</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="preprocessor"></span> <span class="comment">// add it to the list of protocones</span></div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="comment">// note that in its present form, we do not allocate the </span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="comment">// 4-vector components of the momentum. There's no need to</span></div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="comment">// do it here as it will be recomputed in</span></div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="comment">// Csplit_merge::add_protocones</span></div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#a14098a86205362ec23a9687a9ea0a484" title="list of stable cones">protocones</a>.push_back(Cmomentum(elm->eta, elm->phi, elm->ref));</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  }</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  }</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  </div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="comment">// jump to the next one</span></div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  elm = elm->next;</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  }</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  }</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  </div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="comment">// free hash</span></div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="comment">// we do that at this level because hash eats rather a lot of memory</span></div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="comment">// we want to free it before running the split/merge algorithm</span></div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="preprocessor">#ifdef DEBUG_STABLE_CONES</span></div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="preprocessor"></span> nb_hash_cones = <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>-><a class="code" href="classsiscone_1_1hash__cones.html#aedaa1c9a5f7a6e9b926b63ff6097f538" title="number of elements">n_cones</a>;</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  nb_hash_occupied = <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>->n_occupied_cells;</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keyword">delete</span> <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>;</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>=NULL;</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> </div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">return</span> <a class="code" href="classsiscone_1_1Cstable__cones.html#a14098a86205362ec23a9687a9ea0a484" title="list of stable cones">protocones</a>.size();</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> }</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> </div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="comment">// ALGORITHM MAIN STEPS FOR COCIRCULAR SITUATIONS //</span></div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="comment">// - cocircular_pt_less(v1, v2) //</span></div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="comment">// - prepare_cocircular_list() //</span></div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="comment">// - test_cone_cocircular() //</span></div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="comment">// - test_stability(candidate, border_vect) //</span></div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="comment">// - updat_cone_cocircular() //</span></div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="comment"></span></div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> <span class="keywordtype">bool</span> cocircular_pt_less(Cmomentum *v1, Cmomentum *v2){</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordflow">return</span> v1->perp2() < v2->perp2();</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> }</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="comment"> * run through the vicinity of the current parent and for each child</span></div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="comment"> * establish which other members are cocircular... Note that the list</span></div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="comment"> * associated with each child contains references to vicinity</span></div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="comment"> * elements: thus two vicinity elements each associated with one given</span></div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="comment"> * particle may appear in a list -- this needs to be watched out for</span></div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="comment"> * later on... </span></div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="comment"> **********************************************************************/</span></div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="keywordtype">void</span> Cstable_cones::prepare_cocircular_lists() {</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  circulator<vector<Cvicinity_elm*>::iterator > here(<a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>.begin(), </div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>.begin(), </div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>.end());</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> </div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  circulator<vector<Cvicinity_elm*>::iterator > search(here);</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> </div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  Cvicinity_elm* here_pntr = *here();</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  search.set_position(here);</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> </div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="comment">// search forwards for things that should have "here" included in</span></div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="comment">// their cocircularity list</span></div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  ++search;</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">if</span> ( abs_dphi((*search())->angle, here_pntr->angle) < </div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  here_pntr->cocircular_range </div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  && search() != here()) {</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  (*search())->cocircular.push_back(here_pntr);</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  }</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  }</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> </div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="comment">// search backwards</span></div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  search.set_position(here);</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  --search;</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">if</span> ( abs_dphi((*search())->angle, here_pntr->angle) < </div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  here_pntr->cocircular_range </div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  && search() != here()) {</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  (*search())->cocircular.push_back(here_pntr);</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  }</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  }</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> </div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  ++here;</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  } <span class="keywordflow">while</span> (here() != <a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>.begin());</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span> </div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span> }</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> </div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="comment">/* </span></div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="comment"> * Testing cocircular configurations in p^3 time,</span></div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span> <span class="comment"> * rather than 2^p time; we will test all contiguous subsets of points</span></div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="comment"> * on the border --- note that this is till probably overkill, since</span></div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="comment"> * in principle we only have to test situations where up to a</span></div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span> <span class="comment"> * half-circle is filled (but going to a full circle is simpler)</span></div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="comment"> ******************************************************************/</span></div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="keywordtype">void</span> Cstable_cones::test_cone_cocircular(Cmomentum & borderless_cone,</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  list<Cmomentum *> & border_list) {</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  vector<Cborder_store> border_vect;</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> </div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  border_vect.reserve(border_list.size());</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">for</span> (list<Cmomentum *>::iterator it = border_list.begin();</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  it != border_list.end(); it++) {</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  border_vect.push_back(Cborder_store(*it, centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a85c123cfffe6ace0abebc0687afa0e57" title="eta coordinate of the center">eta</a>, centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a880fab870bd8474ff397daf0f72cdac3" title="phi coordinate of the center">phi</a>));</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  }</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> </div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="comment">// get them into order of angle</span></div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  sort(border_vect.begin(), border_vect.end());</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> </div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="comment">// set up some circulators, since these will help us go around the</span></div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="comment">// circle easily</span></div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  circulator<vector<Cborder_store>::iterator > </div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  start(border_vect.begin(), border_vect.begin(),border_vect.end());</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  circulator<vector<Cborder_store>::iterator > mid(start), end(start);</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  </div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="comment">// test the borderless cone</span></div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  Cmomentum candidate = borderless_cone;</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  candidate.build_etaphi();</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keywordflow">if</span> (candidate.ref.not_empty())</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  test_stability(candidate, border_vect);</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> </div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="comment">// reset status wrt inclusion in the cone</span></div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  mid = start;</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  mid()->is_in = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  } <span class="keywordflow">while</span> (++mid != start);</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> </div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="comment">// now run over all inclusion possibilities with this starting point</span></div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  candidate = borderless_cone;</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordflow">while</span> (++mid != start) { </div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="comment">// will begin with start+1 and go up to start-1</span></div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  mid()->is_in = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  candidate += *(mid()->mom);</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  test_stability(candidate, border_vect);</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  }</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> </div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  } <span class="keywordflow">while</span> (++start != end);</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> </div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="comment">// mid corresponds to momentum that we need to include to get the</span></div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="comment">// full cone</span></div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  mid()->is_in = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  candidate += *(mid()->mom);</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  test_stability(candidate, border_vect);</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span> }</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> </div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span> </div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span> <span class="keywordtype">void</span> Cstable_cones::test_stability(Cmomentum & candidate, <span class="keyword">const</span> vector<Cborder_store> & border_vect) {</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  </div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="comment">// this almost certainly has not been done...</span></div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  candidate.build_etaphi();</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span> </div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="keywordtype">bool</span> stable = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < border_vect.size(); i++) {</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keywordflow">if</span> (is_inside(&candidate, border_vect[i].mom) ^ (border_vect[i].is_in)) {</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  stable = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="keywordflow">break</span>; <span class="comment">// it's unstable so there's no point continuing</span></div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  }</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  }</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span> </div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="keywordflow">if</span> (stable) <a class="code" href="classsiscone_1_1Cstable__cones.html#abc660afbd0981feb5a630f606a804443" title="list of candidates">hc</a>-><a class="code" href="classsiscone_1_1hash__cones.html#a4d4f5cf710dde0fa86766c4f7809fe35" title="insert a new candidate into the hash.">insert</a>(&candidate);</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span> }</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span> </div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="comment"> * check if we are in a situation of cocircularity.</span></div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="comment"> * if it is the case, update and test in the corresponding way</span></div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="comment"> * return 'false' if no cocircularity detected, 'true' otherwise</span></div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="comment"> * Note that if cocircularity is detected, we need to </span></div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="comment"> * recall 'update' from 'update' !!!</span></div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="comment"> ***************************************************************/</span></div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="keywordtype">bool</span> Cstable_cones::cocircular_check(){</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="comment">// check if many configurations have the same centre.</span></div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="comment">// if this is the case, branch on the algorithm for this</span></div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="comment">// special case.</span></div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <span class="comment">// Note that those situation, being considered separately in </span></div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="comment">// test_cone_multiple, must only be considered here if all</span></div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="comment">// angles are on the same side (this avoid multiple counting)</span></div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> </div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordflow">if</span> (centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a5fed131c5d1b658fe46a7bb6796efd59" title="list of elements co-circular with this one NB: empty list uses less mem than vector">cocircular</a>.empty()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> </div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="comment">// first get cone into status required at end...</span></div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordflow">if</span> ((centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#aed44dbe9065f593442981d1f53847eaf" title="true if angle on the positive side, false otherwise">side</a>) && (cone.<a class="code" href="classsiscone_1_1Cmomentum.html#a44980853567f863ca4178926f5f83444" title="reference number for the vector">ref</a>.<a class="code" href="classsiscone_1_1Creference.html#a8f680bf54a83b561bfd97a5654d9ae54" title="test non-emptyness">not_empty</a>())){</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="comment">// update cone</span></div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  cone -= (*child);</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span> </div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="comment">// update info on particles inside</span></div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a887edcdd74f318114094ed476731013d" title="variable to tell if the particle is inside or outside the cone">is_inside</a>-><a class="code" href="classsiscone_1_1Cvicinity__inclusion.html#a4cb329d95b1d7d7f8c7ff4e17225a1a4" title="flag for particle inclusion in the cone">cone</a> = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> </div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="comment">// update stability check quantities</span></div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  dpt += fabs(child->px)+fabs(child->py); <span class="comment">//child->perp2();</span></div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  }</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> </div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span> </div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="comment">// now establish the list of unique children in the list</span></div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="comment">// first make sure parent and child are in!</span></div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> </div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  list<Cvicinity_inclusion *> removed_from_cone;</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  list<Cvicinity_inclusion *> put_in_border;</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  list<Cmomentum *> border_list;</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  </div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  Cmomentum cone_removal;</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  Cmomentum border = *<a class="code" href="classsiscone_1_1Cvicinity.html#a02b7b429a44af32601d5d951476883a6" title="parent vector">parent</a>;</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  border_list.push_back(parent);</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span> </div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <span class="comment">// make sure child appears in the border region</span></div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a5fed131c5d1b658fe46a7bb6796efd59" title="list of elements co-circular with this one NB: empty list uses less mem than vector">cocircular</a>.push_back(centre);</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> </div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="comment">// now establish the full contents of the cone minus the cocircular</span></div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="comment">// region and of the cocircular region itself</span></div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="keywordflow">for</span>(list<Cvicinity_elm *>::iterator it = centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a5fed131c5d1b658fe46a7bb6796efd59" title="list of elements co-circular with this one NB: empty list uses less mem than vector">cocircular</a>.begin();</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  it != centre-><a class="code" href="classsiscone_1_1Cvicinity__elm.html#a5fed131c5d1b658fe46a7bb6796efd59" title="list of elements co-circular with this one NB: empty list uses less mem than vector">cocircular</a>.end(); it++) {</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span> </div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <span class="keywordflow">if</span> ((*it)->is_inside->cone) {</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  cone_removal += *((*it)->v);</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  (*it)->is_inside->cone = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  removed_from_cone.push_back((*it)->is_inside);</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  }</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span> </div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="comment">// if a point appears twice (i.e. with + and - sign) in the list of </span></div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="comment">// points on the border, we take care not to include it twice.</span></div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="comment">// Note that this situation may appear when a point is at a distance</span></div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="comment">// close to 2R from the parent</span></div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="keywordflow">if</span> (!(*it)->is_inside->cocirc) {</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  border += *((*it)->v);</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  (*it)->is_inside->cocirc = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  put_in_border.push_back((*it)->is_inside);</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  border_list.push_back((*it)->v);</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  }</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  }</div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> </div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span> </div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  <span class="comment">// figure out whether this pairing has been observed before</span></div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  Cmomentum borderless_cone = cone;</div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  borderless_cone -= cone_removal;</div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  <span class="keywordtype">bool</span> consider = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0;i<multiple_centre_done.size();i++){</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <span class="keywordflow">if</span> ((multiple_centre_done[i].first ==borderless_cone.ref) &&</div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  (multiple_centre_done[i].second==border.ref))</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  consider = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  }</div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span> </div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  <span class="comment">// now prepare the hard work</span></div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keywordflow">if</span> (consider) {</div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="comment">// record the fact that we've now seen this combination</span></div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  multiple_centre_done.push_back(pair<Creference,Creference>(borderless_cone.ref, </div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  border.ref));</div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span> </div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  <span class="comment">// first figure out whether our cone momentum is good</span></div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="keywordtype">double</span> local_dpt = fabs(cone_removal.px) + fabs(cone_removal.py);</div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  <span class="keywordtype">double</span> total_dpt = dpt + local_dpt;</div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span> </div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  recompute_cone_contents_if_needed(borderless_cone, total_dpt);</div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="keywordflow">if</span> (total_dpt == 0) {</div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="comment">// a recomputation has taken place -- so take advantage of this</span></div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="comment">// and update the member cone momentum</span></div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  cone = borderless_cone + cone_removal;</div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  dpt = local_dpt;</div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  }</div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span> </div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  test_cone_cocircular(borderless_cone, border_list);</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  }</div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span> </div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span> </div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="comment">// relabel things that were in the cone but got removed</span></div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="keywordflow">for</span>(list<Cvicinity_inclusion *>::iterator is_in = removed_from_cone.begin();</div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  is_in != removed_from_cone.end(); is_in++) {</div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  (*is_in)->cone = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  }</div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span> </div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  <span class="comment">// relabel things that got put into the border </span></div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keywordflow">for</span>(list<Cvicinity_inclusion *>::iterator is_in = put_in_border.begin();</div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  is_in != put_in_border.end(); is_in++) {</div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  (*is_in)->cocirc = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  }</div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span> </div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="comment">// we're done with everything -- return true to signal to user that we've</span></div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="comment">// been through the co-circularity rigmarole</span></div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span> }</div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span> </div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span> </div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="comment">// RECOMPUTATION OF CONE CONTENTS //</span></div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="comment">// - compute_cone_contents() //</span></div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="comment">// - recompute_cone_contents() //</span></div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment">// - recompute_cone_contents_if_needed() //</span></div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="comment"></span></div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span> <span class="keywordtype">void</span> Cstable_cones::compute_cone_contents() {</div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  circulator<vector<Cvicinity_elm*>::iterator > </div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  start(<a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>.begin()+first_cone, <a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>.begin(), <a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>.end());</div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span> </div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  circulator<vector<Cvicinity_elm*>::iterator > here(start);</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span> </div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="comment">// note that in the following algorithm, the cone contents never includes</span></div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="comment">// the child. Indeed, if it has positive sign, then it will be set as</span></div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <span class="comment">// outside at the last step in the loop. If it has negative sign, then the </span></div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="comment">// loop will at some point go to the corresponding situation with positive</span></div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="comment">// sign and set the inclusion status to 0.</span></div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span> </div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="comment">// as we leave this position a particle enters if its side is</span></div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="comment">// negative (i.e. the centre is the one at -ve angle wrt to the</span></div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="comment">// parent-child line</span></div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keywordflow">if</span> (!(*here())->side) ((*here())->is_inside->cone) = 1;</div>
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  </div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="comment">// move on to the next position</span></div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  ++here;</div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  </div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  <span class="comment">// as we arrive at this position a particle leaves if its side is positive</span></div>
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="keywordflow">if</span> ((*here())->side) ((*here())->is_inside->cone) = 0;</div>
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  } <span class="keywordflow">while</span> (here != start);</div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span> </div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="comment">// once we've reached the start the 'is_inside' information should be</span></div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="comment">// 100% complete, so we can use it to calculate the cone contents</span></div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <span class="comment">// and then exit</span></div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  recompute_cone_contents();</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span> </div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span> }</div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span> </div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span> </div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span> <span class="comment"> * compute the cone momentum from particle list.</span></div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span> <span class="comment"> * in this version, we use the 'pincluded' information</span></div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span> <span class="comment"> * from the Cvicinity class</span></div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span> <span class="keywordtype">void</span> Cstable_cones::recompute_cone_contents(){</div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span> </div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="comment">// set momentum to 0</span></div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  cone = Cmomentum();</div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span> </div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  <span class="comment">// Important note: we can browse only the particles</span></div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <span class="comment">// in vicinity since all particles in the cone are</span></div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <span class="comment">// withing a distance 2R w.r.t. parent hence in vicinity.</span></div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="comment">// Among those, we only add the particles for which 'is_inside' is true !</span></div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  <span class="comment">// This methos rather than a direct comparison avoids rounding errors</span></div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  <span class="keywordflow">for</span> (i=0;i<<a class="code" href="classsiscone_1_1Cvicinity.html#a69ad8432e860412e7a7974e06ee45f5f" title="number of elements in vicinity">vicinity_size</a>;i++){</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="comment">// to avoid double-counting, only use particles with + angle</span></div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  <span class="keywordflow">if</span> ((<a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>[i]->side) && (<a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>[i]->is_inside->cone))</div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  cone += *<a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>[i]->v;</div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  }</div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  </div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <span class="comment">// set check variables back to 0</span></div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  dpt = 0.0;</div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span> }</div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span> </div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span> </div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span> <span class="comment"> * if we have gone beyond the acceptable threshold of change, compute</span></div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span> <span class="comment"> * the cone momentum from particle list. in this version, we use the</span></div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span> <span class="comment"> * 'pincluded' information from the Cvicinity class, but we don't</span></div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span> <span class="comment"> * change the member cone, only the locally supplied one</span></div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span> <span class="keywordtype">void</span> Cstable_cones::recompute_cone_contents_if_needed(Cmomentum & this_cone, </div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keywordtype">double</span> & this_dpt){</div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  </div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  <span class="keywordflow">if</span> (this_dpt > <a class="code" href="defines_8h.html#a8356d71215126e3ec1e93a841a908311" title="program name">PT_TSHOLD</a>*(fabs(this_cone.px)+fabs(this_cone.py))) {</div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keywordflow">if</span> (cone.<a class="code" href="classsiscone_1_1Cmomentum.html#a44980853567f863ca4178926f5f83444" title="reference number for the vector">ref</a>.<a class="code" href="classsiscone_1_1Creference.html#a2899510572ccf38c2c297b2efb5a4a97" title="test emptyness">is_empty</a>()) {</div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  this_cone = Cmomentum();</div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="comment">// set momentum to 0</span></div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  this_cone = Cmomentum();</div>
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  </div>
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <span class="comment">// Important note: we can browse only the particles</span></div>
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <span class="comment">// in vicinity since all particles in the this_cone are</span></div>
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  <span class="comment">// withing a distance 2R w.r.t. parent hence in vicinity.</span></div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="comment">// Among those, we only add the particles for which 'is_inside' is true !</span></div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="comment">// This methos rather than a direct comparison avoids rounding errors</span></div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0;i<<a class="code" href="classsiscone_1_1Cvicinity.html#a69ad8432e860412e7a7974e06ee45f5f" title="number of elements in vicinity">vicinity_size</a>;i++){</div>
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  <span class="comment">// to avoid double-counting, only use particles with + angle</span></div>
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="keywordflow">if</span> ((<a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>[i]->side) && (<a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>[i]->is_inside->cone))</div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  this_cone += *<a class="code" href="classsiscone_1_1Cvicinity.html#a53c5b6eae565052d2a38d67e3542f5a3" title="list of points in parent's vicinity">vicinity</a>[i]->v;</div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  }</div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  </div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  }</div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  <span class="comment">// set check variables back to 0</span></div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  this_dpt = 0.0;</div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  }</div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span> </div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span> }</div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span> </div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span> </div>
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span> <span class="comment">// VARIOUS TOOLS //</span></div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span> <span class="comment">// - circle_intersect() //</span></div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span> <span class="comment">// - is_inside() //</span></div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span> <span class="comment">// - abs_dangle() //</span></div>
<div class="line"><a name="l00781"></a><span class="lineno"> 781</span> <span class="comment"></span></div>
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span> </div>
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span> <span class="comment"> * circle intersection.</span></div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span> <span class="comment"> * computes the intersection with a circle of given centre and radius.</span></div>
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span> <span class="comment"> * The output takes the form of a checkxor of the intersection's particles</span></div>
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="comment"> * - cx circle centre x coordinate</span></div>
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span> <span class="comment"> * - cy circle centre y coordinate</span></div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span> <span class="comment"> * return the checkxor for the intersection</span></div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span> <span class="comment"> ******************************************************************/</span></div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span> Creference Cstable_cones::circle_intersect(<span class="keywordtype">double</span> cx, <span class="keywordtype">double</span> cy){</div>
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  Creference intersection;</div>
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  <span class="keywordtype">double</span> dx, dy;</div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span> </div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <span class="keywordflow">for</span> (i=0;i<<a class="code" href="classsiscone_1_1Cvicinity.html#a0be1e7c3ad643f15696db076c9c073a4" title="number of particles">n_part</a>;i++){</div>
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  <span class="comment">// compute the distance of the i-th particle with the parent</span></div>
<div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  dx = <a class="code" href="classsiscone_1_1Cvicinity.html#a4022e1f54ec4276715fb2425030b07a4" title="the list of particles">plist</a>[i].eta - cx;</div>
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  dy = fabs(<a class="code" href="classsiscone_1_1Cvicinity.html#a4022e1f54ec4276715fb2425030b07a4" title="the list of particles">plist</a>[i].phi - cy);</div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  </div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="comment">// pay attention to the periodicity in phi !</span></div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="keywordflow">if</span> (dy>M_PI) </div>
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  dy -= <a class="code" href="defines_8h.html#ad996edbbc287b4e5f3dd072a10bd6122" title="definition of 2*M_PI which is useful a bit everyhere!">twopi</a>;</div>
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  </div>
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  <span class="comment">// really check if the distance is less than VR</span></div>
<div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="keywordflow">if</span> (dx*dx+dy*dy<<a class="code" href="classsiscone_1_1Cstable__cones.html#a15cdf9f5025de7208fe4cf6bb1f912f8" title="cone radius SQUARED">R2</a>)</div>
<div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  intersection+=<a class="code" href="classsiscone_1_1Cvicinity.html#a4022e1f54ec4276715fb2425030b07a4" title="the list of particles">plist</a>[i].ref;</div>
<div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  }</div>
<div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  </div>
<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="keywordflow">return</span> intersection;</div>
<div class="line"><a name="l00811"></a><span class="lineno"> 811</span> }</div>
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span> </div>
<div class="line"><a name="l00813"></a><span class="lineno"> 813</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span> <span class="comment"> * test if a particle is inside a cone of given centre.</span></div>
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span> <span class="comment"> * check if the particle of coordinates 'v' is inside the circle of radius R </span></div>
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span> <span class="comment"> * centered at 'centre'.</span></div>
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span> <span class="comment"> * - centre centre of the circle</span></div>
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span> <span class="comment"> * - v particle to test</span></div>
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span> <span class="comment"> * return true if inside, false if outside</span></div>
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span> <span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> Cstable_cones::is_inside(Cmomentum *centre_in, Cmomentum *v){</div>
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  <span class="keywordtype">double</span> dx, dy;</div>
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span> </div>
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  dx = centre_in->eta - v->eta;</div>
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  dy = fabs(centre_in->phi - v->phi);</div>
<div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  <span class="keywordflow">if</span> (dy>M_PI) </div>
<div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  dy -= <a class="code" href="defines_8h.html#ad996edbbc287b4e5f3dd072a10bd6122" title="definition of 2*M_PI which is useful a bit everyhere!">twopi</a>;</div>
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  </div>
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  <span class="keywordflow">return</span> dx*dx+dy*dy<<a class="code" href="classsiscone_1_1Cstable__cones.html#a15cdf9f5025de7208fe4cf6bb1f912f8" title="cone radius SQUARED">R2</a>;</div>
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span> }</div>
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span> </div>
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span> <span class="comment"> * compute the absolute value of the difference between 2 angles.</span></div>
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span> <span class="comment"> * We take care of the 2pi periodicity</span></div>
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span> <span class="comment"> * - angle1 first angle</span></div>
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span> <span class="comment"> * - angle2 second angle</span></div>
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span> <span class="comment"> * return the absolute value of the difference between the angles</span></div>
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span> <span class="comment"> *****************************************************************/</span></div>
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span> <span class="keyword">inline</span> <span class="keywordtype">double</span> abs_dangle(<span class="keywordtype">double</span> &angle1, <span class="keywordtype">double</span> &angle2){</div>
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <span class="keywordtype">double</span> dphi;</div>
<div class="line"><a name="l00841"></a><span class="lineno"> 841</span> </div>
<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  dphi = fabs(angle1-angle2);</div>
<div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  <span class="keywordflow">if</span> (dphi>M_PI) </div>
<div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  dphi = dphi-<a class="code" href="defines_8h.html#ad996edbbc287b4e5f3dd072a10bd6122" title="definition of 2*M_PI which is useful a bit everyhere!">twopi</a>;</div>
<div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  </div>
<div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  <span class="keywordflow">return</span> dphi;</div>
<div class="line"><a name="l00847"></a><span class="lineno"> 847</span> }</div>
<div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  </div>
<div class="line"><a name="l00849"></a><span class="lineno"> 849</span> }</div>
</div><!-- fragment --></div><!-- contents -->
<address style="align: right;"><small>
The <a href="http://projects.hepforge.org/siscone" target="_top">
SISCone</a> project has been developed by
<a href="http://www.lpthe.jussieu.fr/~salam" target="_top">
Gavin Salam</a> and
<a href="http://www.theo.phys.ulg.ac.be/~soyez" target="_top">
Gregory Soyez</a><br>
Documentation generated on Mon May 6 2013 11:30:35 for SISCone by
<a href="http://www.doxygen.org/index.html">Doxygen</a> 1.8.3.1
</small>
</address>
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