flutter_map_heatmap

Description:

flutter map heatmap

Flutter Map Heatmap plugin #
A Simple heatmap plugin written for for flutter_map package.
example #

A full example can be found under the example project.
Usage #
Add flutter_map and flutter_map_heatmap to your pubspec:
dependencies:
flutter_map: 4.0.0
flutter_map_heatmap: any # or the latest version on Pub
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Flutter heatmaps is implemented as a tile provider.
Add it in your FlutterMap and configure it using HeatMapOptions.
Widget build(BuildContext context) {
return FlutterMap(
options: new MapOptions(center: new LatLng(57.8827, -6.0400), zoom: 8.0),
children: [
TileLayer(
urlTemplate: "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
subdomains: ['a', 'b', 'c']),
if (data.isNotEmpty) HeatMapLayer(
heatMapDataSource: InMemoryHeatMapDataSource(data: data),
heatMapOptions: HeatMapOptions(gradient: this.gradients[this.index],
minOpacity: 0.1),
reset: _rebuildStream.stream,
)
],
);
}
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See the full example
InMemoryHeatMapDataSource is provided out of the box but its easy to implement your own datasource
provider by implementing HeatMapDataSource
TODO #

❌ complete GriddedHeatMapDataSource for gridding the data
❌ improve heatmaps at lower zoom levels by scaling the radius used during painting.