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| <div class="title">SpatialPrefixTree.cs</div> </div> |
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| <a href="_spatial_prefix_tree_8cs.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">/*</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * this work for additional information regarding copyright ownership.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the License. You may obtain a copy of the License at</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"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * limitations under the License.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">using</span> System.Collections.Generic;</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">using</span> System.Collections.ObjectModel;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">using</span> System.Diagnostics;</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">using</span> System.Linq;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">using</span> System.Runtime.CompilerServices;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">using</span> Spatial4n.Core.Context;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">using</span> Spatial4n.Core.Shapes;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">namespace </span>Lucene.Net.Spatial.Prefix.Tree</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> {</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html"> 35</a></span>  <span class="keyword">public</span> <span class="keyword">abstract</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html" title="A spatial Prefix Tree, or Trie, which decomposes shapes into prefixed strings at variable lengths cor...">SpatialPrefixTree</a></div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  {</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#a136f706d4b82382bf595fc89a0466beb"> 37</a></span>  <span class="keyword">protected</span> readonly <span class="keywordtype">int</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#a136f706d4b82382bf595fc89a0466beb">maxLevels</a>;</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">internal</span> readonly SpatialContext ctx;<span class="comment">// it's internal to allow Node to access it</span></div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div> |
| <div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#ae3687d16c2b8962c13859366355e130e"> 40</a></span>  <span class="keyword">protected</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html" title="A spatial Prefix Tree, or Trie, which decomposes shapes into prefixed strings at variable lengths cor...">SpatialPrefixTree</a>(SpatialContext ctx, <span class="keywordtype">int</span> maxLevels)</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  {</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  Debug.Assert(maxLevels > 0);</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  this.ctx = ctx;</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  this.maxLevels = maxLevels;</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  }</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div> |
| <div class="line"><a name="l00047"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#a634d635a8d25bd2707f7d2f773d7ea37"> 47</a></span>  <span class="keyword">public</span> SpatialContext GetSpatialContext()</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  {</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> ctx;</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div> |
| <div class="line"><a name="l00052"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#a4ec99271a2249f0e0ba614ef24247da7"> 52</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> GetMaxLevels()</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  {</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> maxLevels;</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  }</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div> |
| <div class="line"><a name="l00057"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#a35406b162bf3aff26e879307d2922e27"> 57</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> String ToString()</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="keywordflow">return</span> GetType().Name + <span class="stringliteral">"(maxLevels:"</span> + maxLevels + <span class="stringliteral">",ctx:"</span> + ctx + <span class="stringliteral">")"</span>;</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">public</span> <span class="keyword">abstract</span> <span class="keywordtype">int</span> GetLevelForDistance(<span class="keywordtype">double</span> dist);</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">//TODO double getDistanceForLevel(int level)</span></div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">//[NotSerialized]</span></div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">private</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> worldNode;<span class="comment">//cached</span></div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> * Returns the level 0 cell which encompasses all spatial data. Equivalent to {@link #getNode(String)} with "".</span></div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> * This cell is threadsafe, just like a spatial prefix grid is, although cells aren't</span></div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> * generally threadsafe.</span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> * TODO rename to getTopCell or is this fine?</span></div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00084"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#add485c12446f2bcc9c3c4f9766e51014"> 84</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> GetWorldNode()</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  {</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (worldNode == null)</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  worldNode = GetNode(<span class="stringliteral">""</span>);</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> worldNode;</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</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>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"> * The cell for the specified token. The empty string should be equal to {@link #getWorldNode()}.</span></div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> * Precondition: Never called when token length > maxLevel.</span></div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">public</span> <span class="keyword">abstract</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> GetNode(String token);</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>  <span class="keyword">public</span> <span class="keyword">abstract</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> GetNode(byte[] bytes, <span class="keywordtype">int</span> offset, <span class="keywordtype">int</span> len);</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">//public Node GetNode(byte[] bytes, int offset, int len, Node target)</span></div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">//{</span></div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// if (target == null)</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"> 105</span>  <span class="comment">// return GetNode(bytes, offset, len);</span></div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// }</span></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>  <span class="comment">// target.Reset(bytes, offset, len);</span></div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="comment">// return target;</span></div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="comment">//}</span></div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div> |
| <div class="line"><a name="l00112"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#a4b0471239934d7943548aa4cdda5c8eb"> 112</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> GetNode(<span class="keywordtype">string</span> token, <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> target)</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  {</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">if</span> (target == null)</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  {</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> GetNode(token);</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</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>  target.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#a808d46c4ee1f5cd0848179e114e4c5ff">Reset</a>(token);</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> target;</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> </div> |
| <div class="line"><a name="l00123"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#a4f593bbc55e67c5e1dc20fc986fe6c80"> 123</a></span>  <span class="keyword">protected</span> <span class="keyword">virtual</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> GetNode(Point p, <span class="keywordtype">int</span> level)</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  {</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> GetNodes(p, level, <span class="keyword">false</span>).ElementAt(0);</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>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> * Gets the intersecting & including cells for the specified shape, without exceeding detail level.</span></div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> * The result is a set of cells (no dups), sorted. Unmodifiable.</span></div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> * <p/></span></div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> * This implementation checks if shape is a Point and if so uses an implementation that</span></div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"> * recursively calls {@link Node#getSubCell(com.spatial4j.core.shape.Point)}. Cell subclasses</span></div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment"> * ideally implement that method with a quick implementation, otherwise, subclasses should</span></div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment"> * override this method to invoke {@link #getNodesAltPoint(com.spatial4j.core.shape.Point, int, boolean)}.</span></div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment"> * TODO consider another approach returning an iterator -- won't build up all cells in memory.</span></div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00138"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#a6bf374de61a08f7af0e9f5caf247d6af"> 138</a></span>  <span class="keyword">public</span> <span class="keyword">virtual</span> IList<Node> GetNodes(Shape shape, <span class="keywordtype">int</span> detailLevel, <span class="keywordtype">bool</span> inclParents)</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  {</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">if</span> (detailLevel > maxLevels)</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  {</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentException(<span class="stringliteral">"detailLevel > maxLevels"</span>, <span class="stringliteral">"detailLevel"</span>);</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> </div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  List<Node> cells;</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span> (shape is Point)</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>  <span class="comment">//optimized point algorithm</span></div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordtype">int</span> initialCapacity = inclParents ? 1 + detailLevel : 1;</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  cells = <span class="keyword">new</span> List<Node>(initialCapacity);</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  RecursiveGetNodes(GetWorldNode(), (Point)shape, detailLevel, <span class="keyword">true</span>, cells);</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  Debug.Assert(cells.Count == initialCapacity);</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  {</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  cells = <span class="keyword">new</span> List<Node>(inclParents ? 1024 : 512);</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  RecursiveGetNodes(GetWorldNode(), shape, detailLevel, inclParents, cells);</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">if</span> (inclParents)</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>  Debug.Assert(cells[0].GetLevel() == 0);</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  cells.RemoveAt(0);<span class="comment">//remove getWorldNode()</span></div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> cells;</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">private</span> <span class="keywordtype">void</span> RecursiveGetNodes(<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> node, Shape shape, <span class="keywordtype">int</span> detailLevel, <span class="keywordtype">bool</span> inclParents, IList<Node> result)</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="keywordflow">if</span> (node.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#a954b33a23b744cd75a689ef04918d91e">IsLeaf</a>())</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  {<span class="comment">//cell is within shape</span></div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  result.Add(node);</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">return</span>;</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  }</div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  var subCells = node.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#abe9f033016b4974e2dcb7cc156d29e4c">GetSubCells</a>(shape);</div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> (node.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#adc757453b634ca2af407f863d7de4265">GetLevel</a>() == detailLevel - 1)</div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  {</div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span> (subCells.Count < node.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#a7622c520988bfdd641450796d3072527">GetSubCellsSize</a>())</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">if</span> (inclParents)</div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  result.Add(node);</div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">foreach</span> (var subCell <span class="keywordflow">in</span> subCells)</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  {</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  subCell.SetLeaf();</div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  result.Add(subCell);</div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  {<span class="comment">//a bottom level (i.e. detail level) optimization where all boxes intersect, so use parent cell.</span></div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  node.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#ac4e81114f6703614a0d7e5ab29f66213">SetLeaf</a>();</div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  result.Add(node);</div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  }</div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  {</div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">if</span> (inclParents)</div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  {</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  result.Add(node);</div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">foreach</span> (var subCell <span class="keywordflow">in</span> subCells)</div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  {</div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  RecursiveGetNodes(subCell, shape, detailLevel, inclParents, result);<span class="comment">//tail call</span></div> |
| <div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  }</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>  }</div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keyword">private</span> <span class="keywordtype">void</span> RecursiveGetNodes(Node node, Point point, <span class="keywordtype">int</span> detailLevel, <span class="keywordtype">bool</span> inclParents, IList<Node> result)</div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  {</div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">if</span> (inclParents)</div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  {</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  result.Add(node);</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>  Node pCell = node.GetSubCell(point);</div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">if</span> (node.GetLevel() == detailLevel - 1)</div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  {</div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  pCell.SetLeaf();</div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  result.Add(pCell);</div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  }</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  {</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  RecursiveGetNodes(pCell, point, detailLevel, inclParents, result);<span class="comment">//tail call</span></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>  }</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>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> * Subclasses might override {@link #getNodes(com.spatial4j.core.shape.Shape, int, boolean)}</span></div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> * and check if the argument is a shape and if so, delegate</span></div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> * to this implementation, which calls {@link #getNode(com.spatial4j.core.shape.Point, int)} and</span></div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> * then calls {@link #getNode(String)} repeatedly if inclParents is true.</span></div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00231"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#aa8d6a2f61b16d96b47de5fee454c9361"> 231</a></span>  <span class="keyword">protected</span> <span class="keyword">virtual</span> IList<Node> GetNodesAltPoint(Point p, <span class="keywordtype">int</span> detailLevel, <span class="keywordtype">bool</span> inclParents)</div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  {</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> cell = GetNode(p, detailLevel);</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">if</span> (!inclParents)</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="preprocessor">#if !NET35</span></div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> <span class="keyword">new</span> ReadOnlyCollectionBuilder<Node>(<span class="keyword">new</span>[] { cell }).ToReadOnlyCollection();</div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="preprocessor">#else</span></div> |
| <div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> <span class="keyword">new</span> List<Node>(<span class="keyword">new</span>[] { cell }).AsReadOnly();</div> |
| <div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="preprocessor"></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>  String endToken = cell.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#a390f1795a9c39889cbd96752e5a4f1b3">GetTokenString</a>();</div> |
| <div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  Debug.Assert(endToken.Length == detailLevel);</div> |
| <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  var cells = <span class="keyword">new</span> List<Node>(detailLevel);</div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < detailLevel; i++)</div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  {</div> |
| <div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  cells.Add(GetNode(endToken.Substring(0, i)));</div> |
| <div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div> |
| <div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  cells.Add(cell);</div> |
| <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">return</span> cells;</div> |
| <div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  }</div> |
| <div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div> |
| <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment"> * Will add the trailing leaf byte for leaves. This isn't particularly efficient.</span></div> |
| <div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00257"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree.html#aff7a1ed02d43510fccfe2c6fa513f340"> 257</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> List<String> NodesToTokenStrings(Collection<Node> nodes)</div> |
| <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  {</div> |
| <div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  var tokens = <span class="keyword">new</span> List<String>((nodes.Count));</div> |
| <div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">foreach</span> (<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a> node <span class="keywordflow">in</span> nodes)</div> |
| <div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  {</div> |
| <div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  String token = node.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#a390f1795a9c39889cbd96752e5a4f1b3">GetTokenString</a>();</div> |
| <div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">if</span> (node.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#a954b33a23b744cd75a689ef04918d91e">IsLeaf</a>())</div> |
| <div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  {</div> |
| <div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  tokens.Add(token + (<span class="keywordtype">char</span>)<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a>.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html#a3e8fe775a1f05d275d99bf23bfbed459">LEAF_BYTE</a>);</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>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  {</div> |
| <div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  tokens.Add(token);</div> |
| <div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  }</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>  <span class="keywordflow">return</span> tokens;</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> </div> |
| <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  }</div> |
| <div class="line"><a name="l00276"></a><span class="lineno"> 276</span> }</div> |
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