protected void GenerateNewDisplayZoom(Item query, int layerId, int nResults)
{
Display.Clear();
Item[] zoomItems = Mles.SearchKNN(query, query.ClusterItems, nResults, HasItemDroppedOut);
List <Item> displayItems = new List <Item>(zoomItems);
LoopAddLayerItems(query, layerId, nResults, displayItems);
IncrementDisplayedCount(displayItems);
Display = displayItems;
}
protected Item SelectRandomItem()
{
Item[] nearestItems = Mles.SearchKNN(SearchedItem, Display.ToArray(), BrowsingCoherence, item => false);
if (nearestItems.Length == 1)
{
return(nearestItems[0]);
}
else
{
return(nearestItems[random.Next(nearestItems.Length - 1)]);
}
}
protected void LoopAddLayerItems(Item query, int layerId, int nResults, List <Item> displayItems)
{
int loopWatchdog = 0;
while (displayItems.Count < nResults)
{
// not enough items in zoomed cluster, add additional files from outside the cluster but from the same layer
int nAdditionalResults = nResults - displayItems.Count;
Item[] additionalItems = Mles.SearchKNN(query, layerId, nAdditionalResults, HasItemDroppedOut, displayItems);
displayItems.AddRange(additionalItems);
if (loopWatchdog++ > 10)
{
throw new NotImplementedException("Trouble filling whole display...");
}
}
}
