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354 lines
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 <span id="projectnumber">8.1</span>
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<div class="title">timetable.h</div> </div>
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<a href="timetable_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2010-2018 Google LLC</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// You may obtain a copy of the License at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// See the License for the specific language governing permissions and</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// limitations under the License.</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#ifndef OR_TOOLS_SAT_TIMETABLE_H_</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#define OR_TOOLS_SAT_TIMETABLE_H_</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "<a class="code" href="macros_8h.html">ortools/base/macros.h</a>"</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "<a class="code" href="integer_8h.html">ortools/sat/integer.h</a>"</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "<a class="code" href="intervals_8h.html">ortools/sat/intervals.h</a>"</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "<a class="code" href="rev_8h.html">ortools/util/rev.h</a>"</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span>sat {</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  </div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// Adds a reservoir constraint to the model. Note that to account for level not</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// containing zero at time zero, we might needs to create an artificial fixed</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// event.</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// This instantiate one or more ReservoirTimeTabling class to perform the</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// propagation.</span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keywordtype">void</span> <a class="code" href="namespaceoperations__research_1_1sat.html#a8ae82c52c3f9018d3502184c7853865d">AddReservoirConstraint</a>(std::vector<AffineExpression> times,</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  std::vector<IntegerValue> deltas,</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  std::vector<Literal> presences, <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> min_level,</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <a class="code" href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a> max_level, Model* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">// The piecewise constant function must be below the given capacity. The initial</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// function value is zero. Note that a negative capacity will thus be trivially</span></div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">// infeasible.</span></div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// Note that we take for the definition of the function at time t to be the sum</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// of all delta with time <= t. But because we check for the capacity over the</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">// full horizon, we could have taken < t with no behavior change.</span></div>
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<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_reservoir_time_tabling.html"> 45</a></span> <span class="keyword">class </span><a class="code" href="classoperations__research_1_1sat_1_1_reservoir_time_tabling.html">ReservoirTimeTabling</a> : <span class="keyword">public</span> <a class="code" href="classoperations__research_1_1sat_1_1_propagator_interface.html">PropagatorInterface</a> {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="classoperations__research_1_1sat_1_1_reservoir_time_tabling.html#a354b002d12c90dab7cb40e1efef41e07">ReservoirTimeTabling</a>(<span class="keyword">const</span> std::vector<AffineExpression>& times,</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">const</span> std::vector<IntegerValue>& deltas,</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">const</span> std::vector<Literal>& presences,</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  IntegerValue <a class="code" href="routing__flow_8cc.html#adf3be22c64f10c0783c0cf277e857adf">capacity</a>, <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">bool</span> <a class="code" href="classoperations__research_1_1sat_1_1_reservoir_time_tabling.html#ac1fe9b1f2b978c4283e42f12e586eb1e">Propagate</a>() <span class="keyword">final</span>;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  </div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// The rectangle will be ordered by start, and the end of each rectangle</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// will be equal to the start of the next one. The height correspond to the</span></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// one from start (inclusive) until the next one (exclusive).</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">struct </span>ProfileRectangle {</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  ProfileRectangle() {}</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  ProfileRectangle(IntegerValue start, IntegerValue height)</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  : start(start), height(height) {}</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">bool</span> operator<(<span class="keyword">const</span> ProfileRectangle& other)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> start < other.start;</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  }</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">/* const */</span> IntegerValue start = IntegerValue(0);</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">/* const */</span> IntegerValue height = IntegerValue(0);</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  };</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  </div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// Builds the profile and increases the lower bound of the capacity</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">// variable accordingly.</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">bool</span> BuildProfile();</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// Explanation of the profile minimum value at time t, eventually ignoring the</span></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">// given event.</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordtype">void</span> FillReasonForProfileAtGivenTime(IntegerValue t,</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordtype">int</span> event_to_ignore = -1);</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// Tries to tighten the min/max time of the given event depending on the sign</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// of the delta associated with this event.</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">bool</span> TryToIncreaseMin(<span class="keywordtype">int</span> event);</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">bool</span> TryToDecreaseMax(<span class="keywordtype">int</span> event);</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  </div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="comment">// Input.</span></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  std::vector<AffineExpression> times_;</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  std::vector<IntegerValue> deltas_;</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  std::vector<Literal> presences_;</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  IntegerValue capacity_;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// Model class.</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">const</span> <a class="code" href="classoperations__research_1_1sat_1_1_variables_assignment.html">VariablesAssignment</a>& assignment_;</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>* integer_trail_;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  </div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// Temporary data.</span></div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  std::vector<Literal> literal_reason_;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  std::vector<IntegerLiteral> integer_reason_;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  std::vector<ProfileRectangle> profile_;</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> };</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  </div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment">// A strongly quadratic version of Time Tabling filtering. This propagator</span></div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment">// is similar to the CumulativeTimeTable propagator of the constraint solver.</span></div>
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<div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html"> 103</a></span> <span class="keyword">class </span><a class="code" href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html">TimeTablingPerTask</a> : <span class="keyword">public</span> <a class="code" href="classoperations__research_1_1sat_1_1_propagator_interface.html">PropagatorInterface</a> {</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html#aaa4ecf5818fadc0edcf62443f5d7664f">TimeTablingPerTask</a>(<span class="keyword">const</span> std::vector<AffineExpression>& demands,</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="structoperations__research_1_1sat_1_1_affine_expression.html">AffineExpression</a> <a class="code" href="routing__flow_8cc.html#adf3be22c64f10c0783c0cf277e857adf">capacity</a>, <a class="code" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>* integer_trail,</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a class="code" href="classoperations__research_1_1sat_1_1_scheduling_constraint_helper.html">SchedulingConstraintHelper</a>* helper);</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordtype">bool</span> <a class="code" href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html#ac1fe9b1f2b978c4283e42f12e586eb1e">Propagate</a>() <span class="keyword">final</span>;</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html#a6ee8ed57254aec3ae99d399bae5b3736">RegisterWith</a>(<a class="code" href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html">GenericLiteralWatcher</a>* watcher);</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  </div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">// The rectangle will be ordered by start, and the end of each rectangle</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="comment">// will be equal to the start of the next one. The height correspond to the</span></div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="comment">// one from start (inclusive) until the next one (exclusive).</span></div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">struct </span>ProfileRectangle {</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="comment">/* const */</span> IntegerValue start;</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">/* const */</span> IntegerValue height;</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  </div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  ProfileRectangle(IntegerValue start, IntegerValue height)</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  : start(start), height(height) {}</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  </div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">bool</span> operator<(<span class="keyword">const</span> ProfileRectangle& other)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> start < other.start;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  };</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  </div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// Builds the profile and increases the lower bound of the capacity</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">// variable accordingly.</span></div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">bool</span> BuildProfile();</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  </div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">// Reverses the profile. This is needed to reuse a given profile to update</span></div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// both the start and end times.</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">void</span> ReverseProfile();</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  </div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="comment">// Tries to increase the minimum start time of each task according to the</span></div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// current profile. This function can be called after ReverseProfile() and</span></div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// ReverseVariables to update the maximum end time of each task.</span></div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">bool</span> SweepAllTasks(<span class="keywordtype">bool</span> is_forward);</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  </div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">// Tries to increase the minimum start time of task_id.</span></div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">bool</span> SweepTask(<span class="keywordtype">int</span> task_id);</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  </div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// Updates the starting time of task_id to right and explain it. The reason is</span></div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// all the mandatory parts contained in [left, right).</span></div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">bool</span> UpdateStartingTime(<span class="keywordtype">int</span> task_id, IntegerValue left, IntegerValue right);</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  </div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// Increases the minimum capacity to new_min and explain it. The reason is all</span></div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// the mandatory parts that overlap time.</span></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">bool</span> IncreaseCapacity(IntegerValue <a class="code" href="resource_8cc.html#a13421db7d7e84fff732599bcf954c5cc">time</a>, IntegerValue new_min);</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  </div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">// Explains the state of the profile in the time interval [left, right). The</span></div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">// reason is all the mandatory parts that overlap the interval. The current</span></div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// reason is not cleared when this method is called.</span></div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordtype">void</span> AddProfileReason(IntegerValue left, IntegerValue right);</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  </div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  IntegerValue CapacityMin()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> integer_trail_-><a class="code" href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">LowerBound</a>(capacity_);</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  </div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  IntegerValue CapacityMax()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> integer_trail_-><a class="code" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">UpperBound</a>(capacity_);</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  </div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  IntegerValue DemandMin(<span class="keywordtype">int</span> task_id)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">return</span> integer_trail_-><a class="code" href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">LowerBound</a>(demands_[task_id]);</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  </div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  IntegerValue DemandMax(<span class="keywordtype">int</span> task_id)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span> integer_trail_-><a class="code" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">UpperBound</a>(demands_[task_id]);</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  </div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// Returns true if the tasks is present and has a mantatory part.</span></div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordtype">bool</span> IsInProfile(<span class="keywordtype">int</span> t)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> positions_in_profile_tasks_[t] < num_profile_tasks_;</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  </div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">// Number of tasks.</span></div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> num_tasks_;</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  </div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// The demand variables of the tasks.</span></div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  std::vector<AffineExpression> demands_;</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  </div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// Capacity of the resource.</span></div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">const</span> <a class="code" href="structoperations__research_1_1sat_1_1_affine_expression.html">AffineExpression</a> capacity_;</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  </div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <a class="code" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>* integer_trail_;</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <a class="code" href="classoperations__research_1_1sat_1_1_scheduling_constraint_helper.html">SchedulingConstraintHelper</a>* helper_;</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  </div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">// Optimistic profile of the resource consumption over time.</span></div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  std::vector<ProfileRectangle> profile_;</div>
|
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  IntegerValue profile_max_height_;</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  </div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// Reversible starting height of the reduced profile. This corresponds to the</span></div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// height of the leftmost profile rectangle that can be used for propagation.</span></div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  IntegerValue starting_profile_height_;</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  </div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// Reversible sets of tasks to consider for the forward (resp. backward)</span></div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="comment">// propagation. A task with a fixed start do not need to be considered for the</span></div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// forward pass, same for task with fixed end for the backward pass. It is why</span></div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// we use two sets.</span></div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  std::vector<int> forward_tasks_to_sweep_;</div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  std::vector<int> backward_tasks_to_sweep_;</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">int</span> forward_num_tasks_to_sweep_;</div>
|
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">int</span> backward_num_tasks_to_sweep_;</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  </div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">// Reversible set (with random access) of tasks to consider for building the</span></div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// profile. The set contains the tasks in the [0, num_profile_tasks_) prefix</span></div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// of profile_tasks_. The positions of a task in profile_tasks_ is contained</span></div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">// in positions_in_profile_tasks_.</span></div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  std::vector<int> profile_tasks_;</div>
|
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  std::vector<int> positions_in_profile_tasks_;</div>
|
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">int</span> num_profile_tasks_;</div>
|
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  </div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  DISALLOW_COPY_AND_ASSIGN(<a class="code" href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html">TimeTablingPerTask</a>);</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> };</div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  </div>
|
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> } <span class="comment">// namespace sat</span></div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> } <span class="comment">// namespace operations_research</span></div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  </div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="preprocessor">#endif // OR_TOOLS_SAT_TIMETABLE_H_</span></div>
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</div><!-- fragment --></div><!-- contents -->
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</div><!-- doc-content -->
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_time_tabling_per_task_html_aaa4ecf5818fadc0edcf62443f5d7664f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html#aaa4ecf5818fadc0edcf62443f5d7664f">operations_research::sat::TimeTablingPerTask::TimeTablingPerTask</a></div><div class="ttdeci">TimeTablingPerTask(const std::vector< AffineExpression > &demands, AffineExpression capacity, IntegerTrail *integer_trail, SchedulingConstraintHelper *helper)</div><div class="ttdef"><b>Definition:</b> <a href="timetable_8cc_source.html#l00279">timetable.cc:279</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_affine_expression_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_affine_expression.html">operations_research::sat::AffineExpression</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00205">integer.h:205</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html">operations_research::sat::IntegerTrail</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00533">integer.h:533</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_propagator_interface_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_propagator_interface.html">operations_research::sat::PropagatorInterface</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01053">integer.h:1053</a></div></div>
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<div class="ttc" id="amacros_8h_html"><div class="ttname"><a href="macros_8h.html">macros.h</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdoc">The vehicle routing library lets one model and solve generic vehicle routing problems ranging from th...</div><div class="ttdef"><b>Definition:</b> <a href="dense__doubly__linked__list_8h_source.html#l00021">dense_doubly_linked_list.h:21</a></div></div>
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<div class="ttc" id="aintegral__types_8h_html_a7cde0074dfd288f2d70c0e035dacb28a"><div class="ttname"><a href="integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a">int64</a></div><div class="ttdeci">int64_t int64</div><div class="ttdef"><b>Definition:</b> <a href="integral__types_8h_source.html#l00034">integral_types.h:34</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_reservoir_time_tabling_html_ac1fe9b1f2b978c4283e42f12e586eb1e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_reservoir_time_tabling.html#ac1fe9b1f2b978c4283e42f12e586eb1e">operations_research::sat::ReservoirTimeTabling::Propagate</a></div><div class="ttdeci">bool Propagate() final</div><div class="ttdef"><b>Definition:</b> <a href="timetable_8cc_source.html#l00078">timetable.cc:78</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_generic_literal_watcher_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_generic_literal_watcher.html">operations_research::sat::GenericLiteralWatcher</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01101">integer.h:1101</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_scheduling_constraint_helper_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_scheduling_constraint_helper.html">operations_research::sat::SchedulingConstraintHelper</a></div><div class="ttdef"><b>Definition:</b> <a href="intervals_8h_source.html#l00171">intervals.h:172</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a8b6d5a25e6ad3d28a85b1924471e2cac"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">operations_research::sat::IntegerTrail::UpperBound</a></div><div class="ttdeci">IntegerValue UpperBound(IntegerVariable i) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01297">integer.h:1297</a></div></div>
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<div class="ttc" id="aintervals_8h_html"><div class="ttname"><a href="intervals_8h.html">intervals.h</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model.html">operations_research::sat::Model</a></div><div class="ttdoc">Class that owns everything related to a particular optimization model.</div><div class="ttdef"><b>Definition:</b> <a href="sat_2model_8h_source.html#l00038">sat/model.h:38</a></div></div>
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<div class="ttc" id="arev_8h_html"><div class="ttname"><a href="rev_8h.html">rev.h</a></div></div>
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<div class="ttc" id="agurobi__interface_8cc_html_a0728f23c9a47655d38e0bf1a2f200bcf"><div class="ttname"><a href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a></div><div class="ttdeci">GRBmodel * model</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00269">gurobi_interface.cc:269</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_time_tabling_per_task_html_ac1fe9b1f2b978c4283e42f12e586eb1e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html#ac1fe9b1f2b978c4283e42f12e586eb1e">operations_research::sat::TimeTablingPerTask::Propagate</a></div><div class="ttdeci">bool Propagate() final</div><div class="ttdef"><b>Definition:</b> <a href="timetable_8cc_source.html#l00330">timetable.cc:330</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_reservoir_time_tabling_html_a354b002d12c90dab7cb40e1efef41e07"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_reservoir_time_tabling.html#a354b002d12c90dab7cb40e1efef41e07">operations_research::sat::ReservoirTimeTabling::ReservoirTimeTabling</a></div><div class="ttdeci">ReservoirTimeTabling(const std::vector< AffineExpression > &times, const std::vector< IntegerValue > &deltas, const std::vector< Literal > &presences, IntegerValue capacity, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="timetable_8cc_source.html#l00052">timetable.cc:52</a></div></div>
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<div class="ttc" id="arouting__flow_8cc_html_adf3be22c64f10c0783c0cf277e857adf"><div class="ttname"><a href="routing__flow_8cc.html#adf3be22c64f10c0783c0cf277e857adf">capacity</a></div><div class="ttdeci">int64 capacity</div><div class="ttdef"><b>Definition:</b> <a href="routing__flow_8cc_source.html#l00129">routing_flow.cc:129</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_reservoir_time_tabling_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_reservoir_time_tabling.html">operations_research::sat::ReservoirTimeTabling</a></div><div class="ttdef"><b>Definition:</b> <a href="timetable_8h_source.html#l00045">timetable.h:45</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_ab857cd2aead68952d9fe92a8ad8d3ac9"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">operations_research::sat::IntegerTrail::LowerBound</a></div><div class="ttdeci">IntegerValue LowerBound(IntegerVariable i) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01293">integer.h:1293</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_variables_assignment_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_variables_assignment.html">operations_research::sat::VariablesAssignment</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00122">sat_base.h:122</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a8ae82c52c3f9018d3502184c7853865d"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a8ae82c52c3f9018d3502184c7853865d">operations_research::sat::AddReservoirConstraint</a></div><div class="ttdeci">void AddReservoirConstraint(std::vector< AffineExpression > times, std::vector< IntegerValue > deltas, std::vector< Literal > presences, int64 min_level, int64 max_level, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="timetable_8cc_source.html#l00027">timetable.cc:27</a></div></div>
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<div class="ttc" id="ainteger_8h_html"><div class="ttname"><a href="integer_8h.html">integer.h</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_time_tabling_per_task_html_a6ee8ed57254aec3ae99d399bae5b3736"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html#a6ee8ed57254aec3ae99d399bae5b3736">operations_research::sat::TimeTablingPerTask::RegisterWith</a></div><div class="ttdeci">void RegisterWith(GenericLiteralWatcher *watcher)</div><div class="ttdef"><b>Definition:</b> <a href="timetable_8cc_source.html#l00313">timetable.cc:313</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_time_tabling_per_task_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_time_tabling_per_task.html">operations_research::sat::TimeTablingPerTask</a></div><div class="ttdef"><b>Definition:</b> <a href="timetable_8h_source.html#l00103">timetable.h:103</a></div></div>
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<div class="ttc" id="aresource_8cc_html_a13421db7d7e84fff732599bcf954c5cc"><div class="ttname"><a href="resource_8cc.html#a13421db7d7e84fff732599bcf954c5cc">time</a></div><div class="ttdeci">int64 time</div><div class="ttdef"><b>Definition:</b> <a href="resource_8cc_source.html#l01683">resource.cc:1683</a></div></div>
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