public List <WeightVector> GetW(WeightVectorEntities entities)
{
var query = from p in entities.WeightVectors orderby p.rating, p.star ascending
select p;
return(query.ToList());
}
public void getTree()
{
System.IO.Directory.CreateDirectory(System.IO.Path.Combine(Environment.CurrentDirectory, @"Data\"));
if (tree == null)
{
RTree.RTree <WeightVector> tree = SaveDataController.ReadFromBinaryFile <RTree.RTree <WeightVector> >(System.IO.Path.Combine(Environment.CurrentDirectory, @"Data\", fileName));
//not created before
tree.locker = new System.Threading.ReaderWriterLock();
if (tree.Count == 0)
{
//query database
WeightVectorEntities entities = new WeightVectorEntities();
var query = from p in entities.WeightVectors
select p;
List <WeightVector> listItem = query.ToList();
tree = new RTree.RTree <WeightVector>(listItem.Count > 9? 9:listItem.Count / 2, 2);
int count = 0;
foreach (WeightVector p in listItem)
{
count++;
Debug.WriteLine(count);
RTree.Rectangle rect = new RTree.Rectangle((float)p.rating, (float)p.star, (float)p.rating, (float)p.star, 0, 0);
tree.Add(rect, p);
}
SaveDataController.WriteToBinaryFile(System.IO.Path.Combine(Environment.CurrentDirectory, @"Data\", fileName), tree);
}
this.tree = tree;
}
}
private void button2_Click(object sender, EventArgs e)
{
var watch = System.Diagnostics.Stopwatch.StartNew();
DataPoint point = new DataPoint(Double.Parse(this.rating.Text), Double.Parse(this.star.Text));
WeightVectorEntities entities = new WeightVectorEntities();
DATNEntities entities2 = new DATNEntities();
List <DataPoint> listS = GetS(entities2);
List <WeightVector> listW = GetW(entities);
entities.Dispose();
entities2.Dispose();
KeyValuePair <int, HashSet <WeightVector> > result = rtaController.RTA(listS, listW, point, Int32.Parse(this.rank.Text));
watch.Stop();
fillTable(result.Value);
var elapsedMs = watch.ElapsedMilliseconds;
chart1.Series[1].Points.AddY(elapsedMs);
chart2.Series[1].Points.AddY(result.Key);
MessageBox.Show("Done");
}
