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<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hello Herbert<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Welcome to the world of QGIS!<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US">You could create convex hulls around your point clusters and then get the centroid of the resulting polygon for each cluster.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hope that helps<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Ross<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#1F497D;mso-fareast-language:EN-US">P.S. This is the QGIS UK mailing list. If you want to reach more QGIS users then you can send your queries to the main QGIS mailing list
<a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a> <o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> qgis-uk-user <qgis-uk-user-bounces@lists.osgeo.org>
<b>On Behalf Of </b>Herbert Chitate<br>
<b>Sent:</b> 01 March 2021 11:09<br>
<b>To:</b> qgis-uk-user@lists.osgeo.org<br>
<b>Subject:</b> [QGIS-uk-user] Polygon Centroids Extraction<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Good afternoon All,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I am new to QGIS and was wondering if someone might be able to assist me on an extraction I am trying to do.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I have lat and lon details for about 1,500 locations, which using python (kmeans), I have clustered the data into 20 clusters of which I have the details of the constituent members (+ gps locations) that make up the 20 clusters. Info now
in a CSV file.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">How can I use QGIS to establish the lat and lon of the centroids for each of the clusters?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thank you for the assistance.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards<o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#888888"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#888888">Herbert<o:p></o:p></span></p>
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