/// <summary>
/// Initializes a new instance of the <see cref="Frame"/> class.
/// </summary>
/// <param name="sampleSet">The matrix of touch-sensory data values.</param>
/// <param name="timestamp">The time stamp.</param>
public Frame(double[,] sampleSet, DateTime timestamp)
{
TimeStamp = timestamp;
if (sampleSet != null)
{
var clusterer = new GestureRecognition.Clusterer(sampleSet.Length);
var cluster = clusterer.Cluster(sampleSet, 4);
foreach (var c in cluster.Values)
{
//get blob extension in x and y axis
double cX = 1, cY = 1;
int count = 0;
double val = 0;
foreach (var m in c.ClusterSet.Values)
{
int x = m / sampleSet.GetLength(1);
int y = m % sampleSet.GetLength(1);
try
{
val += sampleSet[x, y];
count++;
}
catch { }
if (Math.Abs(x - c.Mean[0]) >= cX)
{
cX = Math.Abs(x - c.Mean[0]);
}
if (Math.Abs(y - c.Mean[1]) >= cY)
{
cY = Math.Abs(y - c.Mean[1]);
}
}
Touch t = new Touch(c.Id, c.Mean[0], c.Mean[1], cX, cY, val / count);
AddTouch(t);
}
}
}
private Frame GetFrameFromSampleSet(double[,] sampleSet)
{
List<Touch> touchList = new List<Touch>();
if (sampleSet != null)
{
var clusterer = new GestureRecognition.Clusterer(sampleSet.Length);
var cluster = clusterer.Cluster(sampleSet, 0);
foreach (var c in cluster.Values)
{
//get blob extension in x and y axis
double cX = 1, cY = 1;
int count = 0;
double val = 0;
foreach (var m in c.ClusterSet.Values)
{
int x = m / sampleSet.GetLength(1);
int y = m % sampleSet.GetLength(1);
try
{
val += sampleSet[x, y];
count++;
}
catch { }
if (Math.Abs(x - c.Mean[0]) >= cX) cX = Math.Abs(x - c.Mean[0]);
if (Math.Abs(y - c.Mean[1]) >= cY) cY = Math.Abs(y - c.Mean[1]);
}
Touch t = new Touch(c.Id, c.Mean[0], c.Mean[1], cX, cY, val / count);
touchList.Add(t);
}
}
Frame frame = new Frame(DateTime.Now, touchList.ToArray());
return frame;
}
