public void ApplyThreshold()
{
lock (this.SnapshotLock)
{
if (this.Snapshot == null)
{
return;
}
}
dynamic lowerValue = this.Histogram.Keys[this.LowerIndex];
dynamic upperValue = this.Histogram.Keys[this.UpperIndex];
lock (this.SnapshotLock)
{
if (!this.Inverted)
{
//// this.Snapshot.SetAllValidBits(false);
foreach (SnapshotRegion region in this.Snapshot.SnapshotRegions)
{
for (IEnumerator <SnapshotElementComparer> enumerator = region.IterateComparer(SnapshotElementComparer.PointerIncrementMode.ValuesOnly, null); enumerator.MoveNext();)
{
SnapshotElementComparer element = enumerator.Current;
dynamic label = element.GetElementLabel();
if (label >= lowerValue && label <= upperValue)
{
//// element.SetValid(true);
}
}
}
}
else
{
//// this.Snapshot.SetAllValidBits(true);
foreach (SnapshotRegion region in this.Snapshot.SnapshotRegions)
{
for (IEnumerator <SnapshotElementComparer> enumerator = region.IterateComparer(SnapshotElementComparer.PointerIncrementMode.LabelsOnly, null); enumerator.MoveNext();)
{
SnapshotElementComparer element = enumerator.Current;
dynamic label = element.GetElementLabel();
if (label >= lowerValue && label <= upperValue)
{
//// element.SetValid(false);
}
}
}
}
//// this.Snapshot.DiscardInvalidRegions();
}
SnapshotManagerViewModel.GetInstance().SaveSnapshot(this.Snapshot);
this.UpdateHistogram(forceUpdate: true);
}
/// <summary>
/// Called when the repeated task completes.
/// </summary>
protected override void OnEnd()
{
// Prefilter items with negative penalties (ie constantly changing variables)
//// this.Snapshot.SetAllValidBits(false);
foreach (SnapshotRegion region in this.Snapshot.SnapshotRegions)
{
for (IEnumerator <SnapshotElementComparer> enumerator = region.IterateComparer(SnapshotElementComparer.PointerIncrementMode.ValuesOnly, null); enumerator.MoveNext();)
{
SnapshotElementComparer element = enumerator.Current;
if ((Int16)element.ElementLabel > 0)
{
//// element.SetValid(true);
}
}
}
//// this.Snapshot.DiscardInvalidRegions();
SnapshotManagerViewModel.GetInstance().SaveSnapshot(this.Snapshot);
this.CleanUp();
LabelThresholderViewModel.GetInstance().OpenLabelThresholder();
}
/// <summary>
/// Called when the scan updates.
/// </summary>
/// <param name="cancellationToken">The cancellation token for handling canceled tasks.</param>
protected override void OnUpdate(CancellationToken cancellationToken)
{
ConcurrentDictionary <Object, Int64> histogram = new ConcurrentDictionary <Object, Int64>();
Int32 processedPages = 0;
lock (this.SnapshotLock)
{
if (this.Snapshot == null)
{
this.Cancel();
return;
}
Parallel.ForEach(
this.Snapshot.SnapshotRegions,
SettingsViewModel.GetInstance().ParallelSettingsFast,
(region) =>
{
if (region.ReadGroup.ElementLabels == null || region.ElementCount <= 0)
{
return;
}
for (IEnumerator <SnapshotElementComparer> enumerator = region.IterateComparer(SnapshotElementComparer.PointerIncrementMode.LabelsOnly, null); enumerator.MoveNext();)
{
SnapshotElementComparer element = enumerator.Current;
lock (this.ItemLock)
{
Object label = element.GetElementLabel();
if (histogram.ContainsKey(label))
{
histogram[label]++;
}
else
{
histogram.TryAdd(label, 1);
}
}
}
lock (this.ProgressLock)
{
processedPages++;
this.UpdateProgress(processedPages, this.Snapshot.RegionCount, canFinalize: false);
}
//// End foreach element
});
//// End foreach region
}
this.Histogram = new SortedList <Object, Int64>(histogram);
this.UpdateHistogram();
}
/// <summary>
/// Called when the scan updates.
/// </summary>
/// <param name="cancellationToken">The cancellation token for handling canceled tasks.</param>
protected override void OnUpdate(CancellationToken cancellationToken)
{
Int32 processedPages = 0;
ValueCollectorModel valueCollectorModel = new ValueCollectorModel(defaultSnapshot: this.Snapshot, callback: (snapshot) =>
{
Parallel.ForEach(
this.Snapshot.OptimizedSnapshotRegions,
SettingsViewModel.GetInstance().ParallelSettingsFastest,
(region) =>
{
if (!region.ReadGroup.CanCompare(hasRelativeConstraint: true))
{
return;
}
for (IEnumerator <SnapshotElementComparer> enumerator = region.IterateComparer(SnapshotElementComparer.PointerIncrementMode.ValuesOnly, null); enumerator.MoveNext();)
{
SnapshotElementComparer element = enumerator.Current;
// Perform the comparison based on the current scan constraint
if (element.Compare())
{
element.ElementLabel = (UInt16)((UInt16)element.ElementLabel + 1);
}
}
// Update progress
lock (this.ProgressLock)
{
processedPages++;
this.UpdateProgress(processedPages, this.Snapshot.RegionCount, canFinalize: false);
}
});
this.ScanCount++;
this.UpdateScanCount?.Invoke();
});
// TODO: Figure out a better way
while (!valueCollectorModel.IsTaskComplete)
{
Thread.Sleep(100);
}
}
/// <summary>
/// Called when the scan updates.
/// </summary>
/// <param name="cancellationToken">The cancellation token for handling canceled tasks.</param>
protected void OnUpdate(CancellationToken cancellationToken)
{
Int32 processedPages = 0;
Snapshot snapshot = ValueCollector.CollectValues(this.Snapshot).Result;
Parallel.ForEach(
snapshot.OptimizedSnapshotRegions,
ParallelSettings.ParallelSettingsFastest,
(region) =>
{
if (!region.ReadGroup.CanCompare(hasRelativeConstraint: true))
{
return;
}
for (IEnumerator <SnapshotElementComparer> enumerator = region.IterateComparer(SnapshotElementComparer.PointerIncrementMode.ValuesOnly, null); enumerator.MoveNext();)
{
SnapshotElementComparer element = enumerator.Current;
// Perform the comparison based on the current scan constraint
if (element.ElementCompare())
{
element.ElementLabel = (UInt16)((UInt16)element.ElementLabel + 1);
}
}
// Update progress
lock (this.ProgressLock)
{
processedPages++;
//// this.UpdateProgress(processedPages, snapshot.RegionCount, canFinalize: false);
}
});
this.ScanCount++;
this.UpdateScanCount?.Invoke();
}
