public List <PhotoMapItem> GetClasteredItems(MapControl map, List <DmFile> files, double distanceRadius)
{
SimpleGraph graph = new SimpleGraph(EarthDistanceCalculator.Default);
files.ForEach((file) => {
if (file.HasGeoLocation)
{
graph.Vertexes.Add(CreateVertex(map, file));
}
});
graph.CalculateEdges();
GraphSegmentator segmentator = new GraphSegmentator(graph);
ArrayList segments = segmentator.DoSegmentation(distanceRadius);
List <PhotoMapItem> items = new List <PhotoMapItem>();
foreach (SimpleSegment segment in segments)
{
PhotoMapItem item = new PhotoMapItem();
double x = 0.0, y = 0.0;
foreach (SimpleVertex v in segment.Vertexes)
{
item.Files.Add((DmFile)v.Tag);
x += v.X;
y += v.Y;
}
x /= segment.Vertexes.Count;
y /= segment.Vertexes.Count;
item.Location = new GeoPoint(x, y);
item.Image = ThumbHelper.GetIconImage(((DmFile)((SimpleVertex)segment.Vertexes[0]).Tag));
items.Add(item);
}
return(items);
}
