private void UpdateDevice(BlobData blob, Marker marker = null)
{
var device = Devices.Single(d => d.BlobId == blob.Id);
var center = new Point(blob.Center.X, blob.Center.Y);
device.Key = blob.Key;
//device.BlobId = blob.Id;
device.Center = center;
device.State = blob.State;
device.Shape = blob.Polygon;
device.Area = blob.Area;
if (marker != null)
{
device.DeviceId = marker.Id;
device.IsIdentified = true;
device.Angle = marker.Angle;
device.RgbImageToDisplayRatio = marker.RgbImageToDisplayRatio;
}
else
{
var deltaAngle = blob.Angle - device.LastBlobAngle;
// this is a hack but it works pretty good
//if (deltaAngle > 45)
//{
// deltaAngle -= 90;
// //return;
//}
//else if (deltaAngle < -45)
//{
// deltaAngle += 90;
//}
//Console.WriteLine("Delta Angle {0}", deltaAngle);
device.LastBlobAngle = blob.Angle;
device.Angle += deltaAngle;
}
}
private bool DeviceExists(BlobData blob, Func<Device, bool> whereFunc = null)
{
if (whereFunc != null)
return Devices.Where(whereFunc).Any(d => d.BlobId == blob.Id);
return Devices.Any(d => d.BlobId == blob.Id);
}
private void CreateDevice(BlobData blob)
{
var center = new Point(blob.Center.X, blob.Center.Y);
var device = new Device(this, blob.OriginalId, "unknown")
{
BlobId = blob.Id,
IsIdentified = false,
Center = center,
State = blob.State,
LastBlobAngle = blob.Angle,
Shape = blob.Polygon,
Area = blob.Area,
};
AddDevice(device);
}
private static Marker GetClosestMarker(IEnumerable<Marker> markers, BlobData blob, out double retDistance)
{
Marker candidate = null;
var leastDistance = double.MaxValue;
foreach (var marker in markers)
{
var distance = (marker.Center - blob.Center).Length;
if (leastDistance < distance) continue;
candidate = marker;
leastDistance = distance;
}
retDistance = leastDistance;
return candidate;
}
private bool IsInTolerance(BlobData blob1, BlobData blob2, double tolerance)
{
var delta = blob1.Center - blob2.Center;
//var dAngle = Math.Abs(blob1.Angle - blob2.Angle);
return delta.X < tolerance && delta.Y < tolerance;
}
public override IData Copy()
{
var blob = new BlobData(Source, OriginalId, Key)
{
Id = Id,
Center = Center,
State = State,
Angle = Angle,
Area = Area,
Shape = Shape,
Polygon = Polygon
};
return blob;
}