Upgrading the fire importer to use JSON instead of XML
This visualization displays active fire incidents across New South Wales, Australia, as points on a map, with each incident’s position derived from its latitude and longitude coordinates stored in the JSON data. The map uses D3’s `d3.geoPath` to render geographic boundaries, while the incident data itself is loaded as a GeoJSON FeatureCollection, upgraded from an older XML format. Incidents are colored or styled based on their `alertLevel` and `status` properties, such as “under control” or “out of control,” and the visualization highlights whether a fire is active (`fire: true`) or an assist from another agency. The code processes each feature’s geometry—whether a simple Point or a GeometryCollection—to plot markers, with sizes potentially reflecting the reported fire size in hectares.
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