<html><head></head><body><div class="ydp221d81a2yahoo-style-wrap" style="font-family:verdana, helvetica, sans-serif;font-size:13px;"><div><div>Voici une compilation statistique à partir des changesets de OSM pour la grande région de Toronto (<span>bbox=-80.8951,42.9142,-78.1046,44.3297</span>). Depuis </div><div><br></div><div>Pour respecter la politique de confidentialité de OSM, les contributeurs ne sont identifiés que selon leur uid.</div><div><br></div><div>Depuis décembre, on compte 6 contributeurs, 889 changesets et 6,621,124 objets édités (noeuds, chemins ou relations) </div><div><br></div><div>1 immeuble = 5 objets minimum</div><div>Le fichier de changeset ne fournit que le nombre d'objets édités (var num_changes). On ne peut donc à cette étape-ci que grossièrement estimer le nombre d'immeubles, sans doute plus de 1 million déjà. A partir de Overpass, on ne peut facilement extraire les données. Je vais télécharger dans PostGIS un fichier récent de l'Ontario et sélectionner les données éditées depuis le 24 décembre (premier jour avec édition ) <span><span style="color: rgb(0, 0, 0); font-family: verdana, helvetica, sans-serif;"> de ces 6 contributeurs</span></span>. Mon script Qualité permettra également d'analyser la géométrie des bâtiments.</div><div><br></div><div>lexique<br></div><div>changeset nombre de changesets (sessions d'édition)</div><div>num_changes nombre d'objets édités dans la session</div><div>avg_changes moyenne, objets édités par changeset</div><div><br></div><div><span><div>Tableau 1 - Objets édités par contributeur avec moyenne par changeset</div><div><br></div><div><span><table cellspacing="0" border="0">
<colgroup span="2" width="133"></colgroup>
<colgroup width="81"></colgroup>
<colgroup width="95"></colgroup>
<colgroup width="91"></colgroup>
<tbody><tr>
<td height="17" align="right">uid</td>
<td align="right">changesets</td>
<td align="right">num_changes</td>
<td align="right">avg_changes</td>
<td align="right">% cum</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">457</td>
<td align="right">3,439,242</td>
<td align="right">7,526</td>
<td align="right">52.7%</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">197</td>
<td align="right">1,619,540</td>
<td align="right">8,221</td>
<td align="right">77.6%</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">151</td>
<td align="right">815,541</td>
<td align="right">5,401</td>
<td align="right">90.1%</td>
</tr>
<tr>
<td height="17" align="right">9343732</td>
<td align="right">78</td>
<td align="right">628,032</td>
<td align="right">8,052</td>
<td align="right">99.7%</td>
</tr>
<tr>
<td height="17" align="right">3016192</td>
<td align="right">3</td>
<td align="right">17,710</td>
<td align="right">5,903</td>
<td align="right">100.0%</td>
</tr>
<tr>
<td height="17" align="right">1919010</td>
<td align="right">3</td>
<td align="right">1,059</td>
<td align="right">353</td>
<td align="right">100.0%</td>
</tr>
<tr>
<td height="17" align="left"><br></td>
<td align="right">889</td>
<td align="right">6,521,124</td>
<td align="right">7,335</td>
<td align="left"><br></td>
</tr>
</tbody></table></span><br></div><div><br></div><div>Tableau 2 - Objets édités par contributeur - jour avec moyenne par changeset<br></div></span></div><div><span><table cellspacing="0" border="0">
<colgroup span="2" width="133"></colgroup>
<colgroup width="81"></colgroup>
<colgroup width="95"></colgroup>
<colgroup width="91"></colgroup>
<tbody><tr>
<td height="17" align="left">uid</td>
<td align="left">jour</td>
<td align="left">changesets</td>
<td align="left">num_changes</td>
<td align="left">avg_changes</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2018-12-28</td>
<td align="right">3</td>
<td align="right">10,324</td>
<td align="right">3,441</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-14</td>
<td align="right">11</td>
<td align="right">58,402</td>
<td align="right">5,309</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-17</td>
<td align="right">9</td>
<td align="right">57,738</td>
<td align="right">6,415</td>
</tr>
<tr>
<td height="17" align="right">9343732</td>
<td align="right">2019-01-16</td>
<td align="right">7</td>
<td align="right">63,490</td>
<td align="right">9,070</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2018-12-29</td>
<td align="right">8</td>
<td align="right">70,562</td>
<td align="right">8,820</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-16</td>
<td align="right">25</td>
<td align="right">176,942</td>
<td align="right">7,078</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2018-12-23</td>
<td align="right">5</td>
<td align="right">29,279</td>
<td align="right">5,856</td>
</tr>
<tr>
<td height="17" align="right">9343732</td>
<td align="right">2019-01-14</td>
<td align="right">5</td>
<td align="right">39,000</td>
<td align="right">7,800</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-12</td>
<td align="right">10</td>
<td align="right">48,329</td>
<td align="right">4,833</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2018-12-24</td>
<td align="right">9</td>
<td align="right">54,888</td>
<td align="right">6,099</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-08</td>
<td align="right">13</td>
<td align="right">77,332</td>
<td align="right">5,949</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-08</td>
<td align="right">20</td>
<td align="right">156,232</td>
<td align="right">7,812</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-01</td>
<td align="right">9</td>
<td align="right">67,167</td>
<td align="right">7,463</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-07</td>
<td align="right">19</td>
<td align="right">154,837</td>
<td align="right">8,149</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-02</td>
<td align="right">30</td>
<td align="right">280,756</td>
<td align="right">9,359</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2018-12-24</td>
<td align="right">11</td>
<td align="right">66,162</td>
<td align="right">6,015</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-11</td>
<td align="right">2</td>
<td align="right">6,219</td>
<td align="right">3,110</td>
</tr>
<tr>
<td height="17" align="right">9343732</td>
<td align="right">2019-01-15</td>
<td align="right">10</td>
<td align="right">75,020</td>
<td align="right">7,502</td>
</tr>
<tr>
<td height="17" align="right">9343732</td>
<td align="right">2019-01-11</td>
<td align="right">11</td>
<td align="right">82,844</td>
<td align="right">7,531</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2018-12-30</td>
<td align="right">20</td>
<td align="right">177,602</td>
<td align="right">8,880</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2018-12-31</td>
<td align="right">30</td>
<td align="right">195,300</td>
<td align="right">6,510</td>
</tr>
<tr>
<td height="17" align="right">9343732</td>
<td align="right">2019-01-12</td>
<td align="right">14</td>
<td align="right">111,821</td>
<td align="right">7,987</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-03</td>
<td align="right">25</td>
<td align="right">200,002</td>
<td align="right">8,000</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-10</td>
<td align="right">33</td>
<td align="right">260,886</td>
<td align="right">7,906</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-09</td>
<td align="right">17</td>
<td align="right">138,489</td>
<td align="right">8,146</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2018-12-31</td>
<td align="right">21</td>
<td align="right">169,903</td>
<td align="right">8,091</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-09</td>
<td align="right">9</td>
<td align="right">41,664</td>
<td align="right">4,629</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-13</td>
<td align="right">32</td>
<td align="right">266,247</td>
<td align="right">8,320</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2018-12-29</td>
<td align="right">36</td>
<td align="right">274,357</td>
<td align="right">7,621</td>
</tr>
<tr>
<td height="17" align="right">9343732</td>
<td align="right">2019-01-10</td>
<td align="right">14</td>
<td align="right">112,606</td>
<td align="right">8,043</td>
</tr>
<tr>
<td height="17" align="right">1919010</td>
<td align="right">2019-01-17</td>
<td align="right">2</td>
<td align="right">973</td>
<td align="right">487</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2018-12-26</td>
<td align="right">29</td>
<td align="right">216,701</td>
<td align="right">7,472</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-07</td>
<td align="right">12</td>
<td align="right">93,825</td>
<td align="right">7,819</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-10</td>
<td align="right">2</td>
<td align="right">718</td>
<td align="right">359</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-09</td>
<td align="right">25</td>
<td align="right">216,885</td>
<td align="right">8,675</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-08</td>
<td align="right">27</td>
<td align="right">119,761</td>
<td align="right">4,436</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2018-12-25</td>
<td align="right">2</td>
<td align="right">10,528</td>
<td align="right">5,264</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-06</td>
<td align="right">18</td>
<td align="right">142,007</td>
<td align="right">7,889</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-01</td>
<td align="right">6</td>
<td align="right">58,083</td>
<td align="right">9,681</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-04</td>
<td align="right">7</td>
<td align="right">39,155</td>
<td align="right">5,594</td>
</tr>
<tr>
<td height="17" align="right">1919010</td>
<td align="right">2019-01-16</td>
<td align="right">1</td>
<td align="right">86</td>
<td align="right">86</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-11</td>
<td align="right">22</td>
<td align="right">174,419</td>
<td align="right">7,928</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2018-12-25</td>
<td align="right">29</td>
<td align="right">188,931</td>
<td align="right">6,515</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2018-12-27</td>
<td align="right">10</td>
<td align="right">67,593</td>
<td align="right">6,759</td>
</tr>
<tr>
<td height="17" align="right">3016192</td>
<td align="right">2018-12-20</td>
<td align="right">3</td>
<td align="right">17,710</td>
<td align="right">5,903</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-04</td>
<td align="right">15</td>
<td align="right">128,047</td>
<td align="right">8,536</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2018-12-30</td>
<td align="right">14</td>
<td align="right">108,068</td>
<td align="right">7,719</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-15</td>
<td align="right">21</td>
<td align="right">150,419</td>
<td align="right">7,163</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-15</td>
<td align="right">19</td>
<td align="right">116,812</td>
<td align="right">6,148</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-14</td>
<td align="right">17</td>
<td align="right">135,021</td>
<td align="right">7,942</td>
</tr>
<tr>
<td height="17" align="right">9343732</td>
<td align="right">2019-01-13</td>
<td align="right">17</td>
<td align="right">143,251</td>
<td align="right">8,427</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-12</td>
<td align="right">16</td>
<td align="right">120,488</td>
<td align="right">7,531</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-06</td>
<td align="right">13</td>
<td align="right">103,233</td>
<td align="right">7,941</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-13</td>
<td align="right">11</td>
<td align="right">57,670</td>
<td align="right">5,243</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2019-01-07</td>
<td align="right">4</td>
<td align="right">7,256</td>
<td align="right">1,814</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-05</td>
<td align="right">13</td>
<td align="right">99,108</td>
<td align="right">7,624</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-05</td>
<td align="right">4</td>
<td align="right">25,286</td>
<td align="right">6,322</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-16</td>
<td align="right">24</td>
<td align="right">204,397</td>
<td align="right">8,517</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2019-01-17</td>
<td align="right">2</td>
<td align="right">18,589</td>
<td align="right">9,295</td>
</tr>
<tr>
<td height="17" align="right">215433</td>
<td align="right">2018-12-27</td>
<td align="right">2</td>
<td align="right">4,009</td>
<td align="right">2,005</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-02</td>
<td align="right">13</td>
<td align="right">71,064</td>
<td align="right">5,466</td>
</tr>
<tr>
<td height="17" align="right">9266764</td>
<td align="right">2019-01-03</td>
<td align="right">18</td>
<td align="right">137,620</td>
<td align="right">7,646</td>
</tr>
<tr>
<td height="17" align="right">5214232</td>
<td align="right">2018-12-27</td>
<td align="right">3</td>
<td align="right">19,011</td>
<td align="right">6,337</td>
</tr>
<tr>
<td height="17" align="left"><br></td>
<td align="left"><br></td>
<td align="right">889</td>
<td align="right">6,521,124</td>
<td align="right">7,335</td>
</tr>
</tbody></table></span><br></div><div><br></div><div class="ydp221d81a2signature"><span style="font-style:italic;color:rgb(0, 0, 191);font-weight:bold;"> <br><font face="garamond, new york, times, serif">Pierre </font><br></span></div></div>
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