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<a class="" href="..">Geospacial Engineering with Docker, PostgreGIS and QGIS</a>
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<a class="" href="../setup/">Docker PostGIS and PGAdmin4</a>
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<a class="" href="../opendata/">Open Data Sources and Types</a>
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<li class="toctree-l2"><a href="#loading-data-with-qgis">Loading data with QGIS</a></li>
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<ul>
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<li><a class="toctree-l3" href="#1-install-qgis">1. Install QGIS:</a></li>
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<li><a class="toctree-l3" href="#2-import-landslide-shapefile-data-into-qgis-then-posgres">2. Import Landslide shapefile data into QGIS, then Posgres</a></li>
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<h1 id="loading-data-with-qgis">Loading data with QGIS</h1>
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<p>In this article, I will show you how to:</p>
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<ol>
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<li>Install QGIS on Ubuntu Linux.</li>
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<li>Connect QGIS to PostgreSQL/PostGIS.</li>
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<li>Import data (shapefiles, GeoJSON) into the GIS database using DBManager.</li>
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</ol>
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<h2 id="1-install-qgis">1. Install QGIS:</h2>
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<p>On Ubuntu Linux, you can use:</p>
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<pre><code class="bash">sudo apt-get update
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sudo apt-get install qgis
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</code></pre>
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<p>For other operating systems, follow the instructions listed at <a href="https://qgis.org/en/site/">https://qgis.org/en/site/</a></p>
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<h3 id="connect-to-postgis">Connect to PostGIS</h3>
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<ul>
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<li>
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<p>Add PostGIS in QGis</p>
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</li>
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<li>
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<p>Under <em>Browser, Right click </em>PostGIS<em> > </em>New Connection* and select Name: postgis, Host: localhost, Port: 5432.</p>
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</li>
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<li>Save the connection details.</li>
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</ul>
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<p><img alt="qgis-connect.png" src="qgis-connect.png" /></p>
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<h2 id="2-import-landslide-shapefile-data-into-qgis-then-posgres">2. Import Landslide shapefile data into QGIS, then Posgres</h2>
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<h3 id="import-the-data-in-qgis">Import the data in QGIS</h3>
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<blockquote>
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<p>First, we import the sample data into QGIS:</p>
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</blockquote>
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<ol>
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<li>'Layer > Data Source Manager > Home' and find the layers</li>
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<li>Select the layers you wish to add and click the Add Selected Layers button.</li>
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</ol>
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<h3 id="export-the-data-to-postgresql-postgis">Export the data to PostgreSQL / PostGIS</h3>
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<ol>
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<li>Click on <em>Database > DB Manager > DB Manager</em></li>
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<li>Select *PostGIS - yourdb > your schema > Table > Import Layer / File and name it (ex: Landslide_Events)</li>
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<li>Repeat step 2 for every layer you wish to import</li>
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<li>Close the DB Manager</li>
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</ol>
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<p><img alt="db-manager.png" src="db-manager.png" /></p>
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<blockquote>
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<p>Note: The import activity can take a long time. You can monitor progress in the PGAdmin4 Dashboard, by looking at the <code>Tuples In: Inserts</code> graph:</p>
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</blockquote>
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<p><img alt="load-performance.png" src="load-performance.png" /></p>
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<h3 id="delete-the-layers-and-load-them-from-the-db">Delete the layers - and load them from the DB</h3>
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<ol>
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<li>In Layers, <em>right click each layer - Remove</em></li>
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<li>In <em>Browser > Postgis > postgis > public</em> - double click each layer (in the right order).</li>
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</ol>
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<p><img alt="postgis-qgis.png" src="postgis-qgis.png" /></p>
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