private static async Task <VectorTile> baseTileToVector(object baseTile)
{
var tile = baseTile as Mapbox.VectorTile.VectorTile;
var result = new VectorTile();
foreach (var lyrName in tile.LayerNames())
{
Mapbox.VectorTile.VectorTileLayer lyr = tile.GetLayer(lyrName);
var vectorLayer = new VectorTileLayer();
vectorLayer.Name = lyrName;
for (int i = 0; i < lyr.FeatureCount(); i++)
{
Mapbox.VectorTile.VectorTileFeature feat = lyr.GetFeature(i);
var vectorFeature = new VectorTileFeature();
vectorFeature.Extent = 1;
vectorFeature.GeometryType = convertGeometryType(feat.GeometryType);
vectorFeature.Attributes = feat.GetProperties();
var vectorGeometry = new List <List <Point> >();
foreach (var points in feat.Geometry <int>())
{
var vectorPoints = new List <Point>();
foreach (var coordinate in points)
{
var dX = (double)coordinate.X / (double)lyr.Extent;
var dY = (double)coordinate.Y / (double)lyr.Extent;
vectorPoints.Add(new Point(dX, dY));
//var newX = Utils.ConvertRange(dX, extent.Left, extent.Right, 0, vectorFeature.Extent);
//var newY = Utils.ConvertRange(dY, extent.Top, extent.Bottom, 0, vectorFeature.Extent);
//vectorPoints.Add(new Point(newX, newY));
}
vectorGeometry.Add(vectorPoints);
}
vectorFeature.Geometry = vectorGeometry;
vectorLayer.Features.Add(vectorFeature);
}
result.Layers.Add(vectorLayer);
}
return(result);
}
