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| <a href="_geohash_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> Spatial4n.Core.Context;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">using</span> Spatial4n.Core.Shapes;</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">using</span> Spatial4n.Core.Util;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div> |
| <div class="line"><a name="l00024"></a><span class="lineno"><a class="code" href="namespace_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree.html"> 24</a></span> <span class="keyword">namespace </span>Lucene.Net.Spatial.Prefix.Tree</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> {</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html"> 29</a></span>  <span class="keyword">public</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_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a> : <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="l00030"></a><span class="lineno"> 30</span>  {</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_factory.html"> 34</a></span>  <span class="keyword">public</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_geohash_prefix_tree_1_1_factory.html" title="Factory for creating GeohashPrefixTree instances with useful defaults ">Factory</a> : <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_spatial_prefix_tree_factory.html" title="Abstract Factory for creating SpatialPrefixTree instances with useful defaults and passed on configur...">SpatialPrefixTreeFactory</a></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  {</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_factory.html#a280ec40063b1c84ed04fd377d01ce3e4"> 36</a></span>  <span class="keyword">protected</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetLevelForDistance(<span class="keywordtype">double</span> degrees)</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  {</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  var grid = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a>(ctx, <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a>.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#a1d14d5f6fb1d925c3388ac8f1392ad68" title="Any more than this and there's no point (double lat and lon are the same). ">GetMaxLevelsPossible</a>());</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">return</span> grid.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#a055886886c184cf256f8462c78912f5b" title="Returns the level of the largest grid in which its longest side is less than or equal to the provided...">GetLevelForDistance</a>(degrees);</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  }</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div> |
| <div class="line"><a name="l00042"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_factory.html#abc40b9d1ec5adde5085310fddf0fd7aa"> 42</a></span>  <span class="keyword">protected</span> <span class="keyword">override</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> NewSPT()</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  {</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a>(ctx, maxLevels != null ? maxLevels.Value : <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a>.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#a1d14d5f6fb1d925c3388ac8f1392ad68" title="Any more than this and there's no point (double lat and lon are the same). ">GetMaxLevelsPossible</a>());</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"> 47</span> </div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div> |
| <div class="line"><a name="l00049"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#a389dc398d6ca77b021336d327011175a"> 49</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_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a>(SpatialContext ctx, <span class="keywordtype">int</span> maxLevels)</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  : base(ctx, maxLevels)</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  {</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  Rectangle bounds = ctx.GetWorldBounds();</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">if</span> (bounds.GetMinX() != -180)</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentException(<span class="stringliteral">"Geohash only supports lat-lon world bounds. Got "</span> + bounds);</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">int</span> MAXP = GetMaxLevelsPossible();</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (maxLevels <= 0 || maxLevels > MAXP)</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentException(<span class="stringliteral">"maxLen must be [1-"</span> + MAXP + <span class="stringliteral">"] but got "</span> + maxLevels);</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>  }</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div> |
| <div class="line"><a name="l00065"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#a1d14d5f6fb1d925c3388ac8f1392ad68"> 65</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">int</span> GetMaxLevelsPossible()</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  {</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> GeohashUtils.MAX_PRECISION;</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div> |
| <div class="line"><a name="l00070"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#a055886886c184cf256f8462c78912f5b"> 70</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetLevelForDistance(<span class="keywordtype">double</span> dist)</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  {</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">if</span> (dist == 0)</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> maxLevels;<span class="comment">//short circuit</span></div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">int</span> level = GeohashUtils.LookupHashLenForWidthHeight(dist, dist);</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> Math.Max(Math.Min(level, maxLevels), 1);</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</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"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#a5259cb362c98ecfedd6d1e371f9e5d46"> 78</a></span>  <span class="keyword">protected</span> <span class="keyword">override</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="l00079"></a><span class="lineno"> 79</span>  {</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html">GhCell</a>(GeohashUtils.EncodeLatLon(p.GetY(), p.GetX(), level), <span class="keyword">this</span>);<span class="comment">//args are lat,lon (y,x)</span></div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div> |
| <div class="line"><a name="l00083"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#a4c6d442c863cb8b2d356b37f517f2fcb"> 83</a></span>  <span class="keyword">public</span> <span class="keyword">override</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)</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  {</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html">GhCell</a>(token, <span class="keyword">this</span>);</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  }</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div> |
| <div class="line"><a name="l00088"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#a75ac732f76745c16cabb073b4a6bc203"> 88</a></span>  <span class="keyword">public</span> <span class="keyword">override</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="l00089"></a><span class="lineno"> 89</span>  {</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.NotImplementedException();</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"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html#ab85d784d73ceb3ada3083b6c6d2704df"> 93</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> IList<Node> GetNodes(Shape shape, <span class="keywordtype">int</span> detailLevel, <span class="keywordtype">bool</span> inclParents)</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  {</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  var s = shape as Point;</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> (s != null) ? base.GetNodesAltPoint(s, detailLevel, inclParents) : base.GetNodes(shape, detailLevel, inclParents);</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div> |
| <div class="line"><a name="l00099"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html"> 99</a></span>  <span class="keyword">public</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_geohash_prefix_tree_1_1_gh_cell.html">GhCell</a> : <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_node.html">Node</a></div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  {</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html#a9f324c9c020514b799740ab000310bf1"> 101</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_geohash_prefix_tree_1_1_gh_cell.html">GhCell</a>(String token, <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a> enclosingInstance)</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  : base(enclosingInstance, token)</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  {</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  }</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div> |
| <div class="line"><a name="l00106"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html#a2ad7630095384006c78801689deba669"> 106</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Reset(<span class="keywordtype">string</span> newToken)</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>  base.Reset(newToken);</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  shape = null;</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</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_geohash_prefix_tree_1_1_gh_cell.html#a2e659fa62f3aecc4bcefcd6444adad53"> 112</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> IList<Node> GetSubCells()</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>  String[] hashes = GeohashUtils.GetSubGeohashes(GetGeohash());<span class="comment">//sorted</span></div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  var cells = <span class="keyword">new</span> List<Node>(hashes.Length);</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  var enclosingInstance = (<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a>)spatialPrefixTree;</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">foreach</span> (String hash <span class="keywordflow">in</span> hashes)</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  {</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  cells.Add(<span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html">GhCell</a>(hash, enclosingInstance));</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>  <span class="keywordflow">return</span> cells;</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  }</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div> |
| <div class="line"><a name="l00125"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html#ae6b821d4d7fb7eae5d428d49d1c5b4de"> 125</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetSubCellsSize()</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>  <span class="keywordflow">return</span> 32;<span class="comment">//8x4</span></div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  }</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div> |
| <div class="line"><a name="l00130"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html#ad3193131da929abeba3029d480703325"> 130</a></span>  <span class="keyword">public</span> <span class="keyword">override</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> GetSubCell(Point p)</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  {</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">return</span> ((<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a>)spatialPrefixTree).GetNode(p, GetLevel() + 1); <span class="comment">//not performant!</span></div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  }</div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">private</span> Shape shape;<span class="comment">//cache</span></div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div> |
| <div class="line"><a name="l00137"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html#a042d013de0f9814ad62d71cf65ffa355"> 137</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> Shape GetShape()</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  {</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">if</span> (shape == null)</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  {</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  shape = GeohashUtils.DecodeBoundary(GetGeohash(), ((<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a>)spatialPrefixTree).ctx);</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">return</span> shape;</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> </div> |
| <div class="line"><a name="l00146"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree_1_1_gh_cell.html#ad35836cd2d23b04df20994ab582ad860"> 146</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> Point GetCenter()</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="keywordflow">return</span> GeohashUtils.Decode(GetGeohash(), ((<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_prefix_1_1_tree_1_1_geohash_prefix_tree.html" title="A SpatialPrefixGrid based on Geohashes. Uses GeohashUtils to do all the geohash work. ">GeohashPrefixTree</a>)spatialPrefixTree).ctx);</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  }</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">private</span> String GetGeohash()</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  {</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> GetTokenString();</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  }<span class="comment">//class GhCell</span></div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span> }</div> |
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