internal static IEnumerable <(IFeature feature, int zoom, string layerName)> ToFeaturesZoomAndLayer(
this IEnumerable <IFeature> features, ToFeatureZoomAndLayerFunc toFeatureZoomAndLayer)
{
foreach (var feature in features)
{
var featuresZoomAndLayers = toFeatureZoomAndLayer(feature);
foreach (var(layerFeature, zoom, layerName) in featuresZoomAndLayers)
{
yield return(layerFeature, zoom, layerName);
}
}
}
/// <summary>
/// Adds the given features to the vector tile tree, expanding it if needed.
/// </summary>
/// <param name="tree">The tree.</param>
/// <param name="features">The features to add.</param>
/// <param name="toFeatureZoomAndLayer">The feature, zoom and layer function.</param>
public static void Add(this VectorTileTree tree, IEnumerable <IFeature> features, ToFeatureZoomAndLayerFunc toFeatureZoomAndLayer)
{
tree.Add(features.ToFeaturesZoomAndLayer(toFeatureZoomAndLayer));
}
/// <summary>
/// Adds the given features to the vector tile tree, expanding it if needed.
/// </summary>
/// <param name="tree">The tree.</param>
/// <param name="features">The features to add.</param>
/// <param name="toFeatureZoomAndLayer">The feature, zoom and layer function.</param>
public static void Add(this VectorTileTree tree, FeatureCollection features, ToFeatureZoomAndLayerFunc toFeatureZoomAndLayer)
{
tree.Add(features.Features.ToFeaturesZoomAndLayer(toFeatureZoomAndLayer));
}
