internal static VectorTile GetVectorTile(this HeatMap heatMap, ulong tileId, uint resolution)
{
var tile = new Tile(tileId);
var tgt = new TileGeometryTransform(tile, resolution);
var vectorTile = new VectorTile()
{
TileId = tileId,
Layers = { new Layer()
{
Name = "heatmap"
} }
};
foreach (var(x, y, value) in heatMap.GetValues(tileId, resolution))
{
if (value == 0)
{
continue;
}
var coordinate = tgt.TransformTo(x, y);
vectorTile.Layers[0].Features.Add(new Feature(
new Point(new Coordinate(coordinate.longitude, coordinate.latitude)),
new AttributesTable {
{ "cost", value }
}));
}
return(vectorTile);
}