PowerGeoJSONMarkers class

A utility class for fetching and rendering markers from various sources.

The PowerGeoJSONMarkers class provides static methods for fetching and rendering markers from network sources, assets, files, memory, and GeoJSON strings.

Example Usage:

// Fetch and render markers from a network source
Widget networkMarkers = PowerGeoJSONMarkers.network(
  'https://example.com/markers.geojson',
  markerProperties: MarkerProperties(height: 48, width: 48),
  builder: (context, markerProperties, properties) {
    // Custom marker builder logic
    return MyCustomMarkerWidget(markerProperties: markerProperties, data: properties);
  },
  mapController: myMapController,
  key: UniqueKey(),
);

// Fetch and render markers from an asset
Widget assetMarkers = PowerGeoJSONMarkers.asset(
  'assets/markers.geojson',
  markerProperties: MarkerProperties(height: 48, width: 48),
  builder: (context, markerProperties, properties) {
    // Custom marker builder logic
    return MyCustomMarkerWidget(markerProperties: markerProperties, data: properties);
  },
  mapController: myMapController,
  key: UniqueKey(),
);

// Fetch and render markers from a file
Widget fileMarkers = PowerGeoJSONMarkers.file(
  '/path/to/markers.geojson',
  markerProperties: MarkerProperties(height: 48, width: 48),
  builder: (context, markerProperties, properties) {
    // Custom marker builder logic
    return MyCustomMarkerWidget(markerProperties: markerProperties, data: properties);
  },
  mapController: myMapController,
  key: UniqueKey(),
);

// Render markers from GeoJSON string
Widget geoJsonMarkers = PowerGeoJSONMarkers.string(
  '{"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "Point", "coordinates": [0, 0]}}]}',
  markerProperties: MarkerProperties(height: 48, width: 48),
  builder: (context, markerProperties, properties) {
    // Custom marker builder logic
    return MyCustomMarkerWidget(markerProperties: markerProperties, data: properties);
  },
  mapController: myMapController,
  key: UniqueKey(),
);