//Keep track of nearest object by setting others to null.
private void TrackNearestObject ( float distance, ref float nearestDistance, Cell returnedCell, ref Cell nearestCell, DistalSynapse returnedDistalSynapse, ref DistalSynapse nearestDistalSynapse, ProximalSynapse returnedProximalSynapse, ref ProximalSynapse nearestProximalSynapse )
{
if (distance < nearestDistance)
{
nearestDistance = distance;
if (returnedCell != null)
{
nearestCell = returnedCell;
nearestDistalSynapse = null;
nearestProximalSynapse = null;
}
if (returnedDistalSynapse != null)
{
nearestCell = null;
nearestDistalSynapse = returnedDistalSynapse;
nearestProximalSynapse = null;
}
if (returnedProximalSynapse != null)
{
nearestCell = null;
nearestDistalSynapse = null;
nearestProximalSynapse = returnedProximalSynapse;
}
}
}
/// <summary>
/// Create a new synapse for this segment attached to the specified lateral cell.
/// </summary>
/// <param name="lateralCell">the lateral cell of the synapse to create.</param>
/// <param name="initialPermanence">the initial permanence of the synapse.</param>
internal void CreateSynapse(Cell lateralCell, float initialPermanence)
{
var newSynapse = new DistalSynapse(this, lateralCell, initialPermanence);
this.Synapses.Add(newSynapse);
}
/// <summary>
/// Helper Method to get color from proximal synapse state
/// </summary>
/// <param name="distalSynapse"></param>
/// <param name="color"></param>
/// <param name="alphaValue"></param>
private void GetColorFromDistalSynapse ( DistalSynapse distalSynapse, out Color color, out float alphaValue )
{
color = this._dictionaryDistalSynapseColors[HtmDistalSynapseColors.Default].HtmColor;
alphaValue = .1f; // All conditions can be false.
Simulation3DForm visualizerForm = Simulation3D.Form;
//Color color = distalSynapse.IsActive ( Global.T ) ? Color.Black : Color.White;
try
{
if (distalSynapse.IsActive ( Global.T ))
{
alphaValue = 1f;
color = this._dictionaryDistalSynapseColors[HtmDistalSynapseColors.Active].HtmColor;
}
else // Not Active.
{
alphaValue = 1f;
color = this._dictionaryDistalSynapseColors[HtmDistalSynapseColors.Default].HtmColor;
}
//selected
if (distalSynapse.mouseSelected)
{
color = selectedColor;
alphaValue = 1f;
//color = this._dictionaryProximalSynapseColors[HtmProximalSynapseColors.MouseSelected].HtmColor;
}
//mouseOver
if (distalSynapse.mouseOver)
{
color = mouseOverColor;
alphaValue = 1f;
//color = this._dictionaryProximalSynapseColors[HtmProximalSynapseColors.MouseOver].HtmColor;
}
}
catch (Exception)
{
}
}
private float PickDistalSynapseConnections ( Ray ray, Column column, Cell cell, ref DistalSynapse returnedDistalSynapse )
{
float intersectDistance;
float minDistance = float.MaxValue;
returnedDistalSynapse = null;
// Draw Connections if existing
if (cell.IsDataGridSelected ||
(Simulation3D.Form.ShowTemporalLearning && cell.PredictiveState[Global.T]))
{
Vector3 rayP1 = ray.Position;
Vector3 rayP2 = rayP1 + ray.Direction;
foreach (DistalSegment segment in cell.DistalSegments)
{
foreach (DistalSynapse synapse in segment.Synapses)
{
synapse.mouseOver = false;
var distalSynapse = synapse as DistalSynapse;
// Get the two vectors to draw line between
var startPosition = new Vector3 ( column.PositionInRegion.X, cell.Index, column.PositionInRegion.Y + _zHtmRegion );
// Get input source position
int x = distalSynapse.InputSource.Column.PositionInRegion.X;
int y = distalSynapse.InputSource.Index;
int z = distalSynapse.InputSource.Column.PositionInRegion.Y;
var endPosition = new Vector3 ( x, y, z + _zHtmPlane );
bool intersect;
Vector3 Line1ClosestPt = new Vector3 ();
Vector3 Line2ClosestPt = new Vector3 ();
intersect = Math3D.ClosestPointsLineSegmentToLine ( out Line1ClosestPt, out Line2ClosestPt, startPosition, endPosition, rayP1, rayP2, 0.1f, out intersectDistance );
if (intersect && intersectDistance < minDistance)
{
minDistance = intersectDistance;
returnedDistalSynapse = synapse;
}
}
}
}
return minDistance;
}
/// <summary>
/// Create a new synapse for this segment attached to the specified lateral cell.
/// </summary>
/// <param name="lateralCell">the lateral cell of the synapse to create.</param>
/// <param name="initialPermanence">the initial permanence of the synapse.</param>
internal void CreateSynapse(Cell lateralCell, float initialPermanence)
{
var newSynapse = new DistalSynapse(this, lateralCell, initialPermanence);
this.Synapses.Add(newSynapse);
}
public DistalSynapseChange(DistalSynapse synapse, Cell outputCell,
EDistalSynapseChange change, string changeText)
{
this.Synapse = synapse;
this.OutputCell = outputCell;
this.ChangeType = change;
this.ChangeText = changeText;
}
public DistalSynapseComparisonCopy(Cell outputCell,
DistalSynapse originalSynapse, DistalSynapse savedSynapse)
{
this.OutputCell = outputCell;
this.OriginalSynapse = originalSynapse;
this.SavedSynapse = savedSynapse;
}
private void DrawConnectionBetweenColumns(Graphics grpOnBitmap, Column outputColumn,
DistalSynapse synapse, Color color)
{
// Note that the start and end points are from the center of the
// Column rectangle, that's why we add COLUMN_SIZE_VIRTUAL / 2
// To the start points of the column rectangles.
SizeF columnSizeVirtual;
PointF columnStartPointVirtual, columnEndPointVirtual;
this.GetColumnVirtualPointAndSize(synapse.InputSource.Column,
out columnStartPointVirtual, out columnSizeVirtual);
this.GetColumnVirtualPointAndSize(outputColumn,
out columnEndPointVirtual, out columnSizeVirtual);
Point pntConnectionStart = this.ConvertViewPointToDisplayPoint(new PointF(
columnStartPointVirtual.X + columnSizeVirtual.Width / 2,
columnStartPointVirtual.Y + columnSizeVirtual.Height / 2));
Point pntConnectionEnd = this.ConvertViewPointToDisplayPoint(new PointF(
columnEndPointVirtual.X + columnSizeVirtual.Width / 2,
columnEndPointVirtual.Y + columnSizeVirtual.Height / 2));
grpOnBitmap.DrawLine(new Pen(color, 5.0f),
pntConnectionStart, pntConnectionEnd);
}
public void TestSynapse()
{
this.DefaultSynapseValues();
var cell = new Cell(null, 0);
cell.ActiveState[Global.T] = true;
cell.LearnState[Global.T] = true;
Synapse syn = new DistalSynapse(cell, Synapse.ConnectedPermanence);
Assert.Equal(true, syn.IsConnected());
Assert.Equal(true, syn.IsActive(Global.T));
Assert.Equal(false, syn.IsActive(Global.T - 1));
Assert.Equal(false, syn.IsActiveFromLearning(Global.T - 1));
syn.DecreasePermanence();
Assert.Equal(false, syn.IsConnected());
Assert.Equal(true, syn.IsActive(Global.T));
cell.ActiveState[Global.T] = false;
Assert.Equal(false, syn.IsActive(Global.T));
}
