Describe how to use the GeoJSON shape file in QGIS

bertrik · Mar 15, 2024 · 9753999 · 9753999
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 # verkeersdrukte
 Java application to serve traffic data from NDW in a friendly format
+
+## Usage in QGIS
+The software presents a shape file in GeoJSON format that can be imported into QGIS.
+Each point in the GeoJSON represents a measurement site,
+and contains all properties of the original shape file,
+plus URLs to the static data (fixed properties), dynamic data (traffic speed and flow) and a link to Google streetview.
+
+First, add an openstreet background layer,
+by clicking XYZ Tiles / OpenStreetMap
+![QGIS Add openstreetmap](images/qgis_osm.png)
+
+Then, add a vector layer,  by opening menu
+Layer / Add Layer / Add Vector Layer ...
+![QGIS Add vector layer](images/qgis_vectorlayer.png)
+The URL is https://stofradar.nl/traffic/static
+Click 'Add', then 'Close'.
+
+You should now see all measurement sites on the map.
+Select a particular site using the 'Identify features' button.
+
+![QGIS Add vector layer](images/qgis_identify.png)
+
+This shows the static information about the measurement site,
+including an URL to the dynamic information. For example:
+http://stofradar.nl:9002/traffic/dynamic/RWS01_MONIBAS_0121hrr0292ra
+
+The URL to the SSE event stream has '/events' appended:
+http://stofradar.nl:9002/traffic/dynamic/RWS01_MONIBAS_0121hrr0292ra/events
diff --git a/images/qgis_identify.png b/images/qgis_identify.png
diff --git a/images/qgis_osm.png b/images/qgis_osm.png
diff --git a/images/qgis_vectorlayer.png b/images/qgis_vectorlayer.png