/// <summary>
/// Convert the path to sensor data.
/// </summary>
/// <returns></returns>
private Task ConvertPathToSensorData()
{
return Task.Run(() =>
{
// Initialize poi sensors
if (PoI.Sensors == null) PoI.Sensors = new SensorSet();
csEvents.Sensors.DataSet dataSet;
PoI.Sensors.TryRemove(KeyLongitude, out dataSet);
PoI.Sensors.TryRemove(KeyLatitude, out dataSet);
PoI.Sensors.TryRemove(KeyAnimateMove, out dataSet);
PoI.Sensors.TryRemove(KeyOrientationSensor, out dataSet);
foreach (var link in Links)
{
DateTime startTime, endTime;
if (!DateTime.TryParse(link.Labels[KeyLabelStartTime], CultureInfo.InvariantCulture, DateTimeStyles.AssumeLocal, out startTime)) return;
if (!DateTime.TryParse(link.Labels[KeyLabelEndTime ], CultureInfo.InvariantCulture, DateTimeStyles.AssumeLocal, out endTime)) return;
var totalLength = 0d;
var numberOfPoints = link.Points.Count - 1;
if (numberOfPoints < 1) continue;
var segmentLengths = new double[numberOfPoints];
for (var i = 0; i < numberOfPoints; i++)
{
var p1 = link.Points[i];
var p2 = link.Points[i + 1];
segmentLengths[i] = ComputeLengthOfSegment(p1, p2);
totalLength += segmentLengths[i];
}
link.Labels[KeyLabelDistance] = totalLength.ToString(CultureInfo.InvariantCulture);
var curTime = startTime;
// Interpolate linearly along the path between p1 and p2
if (totalLength>0)
for (var i = 0; i < numberOfPoints; i++)
{
var p1 = link.Points[i];
var p2 = link.Points[i + 1];
var lengthOfCurrentSegment = segmentLengths[i];
var durationOfCurrentSegment = TimeSpan.FromTicks((long)((endTime - startTime).Ticks * lengthOfCurrentSegment / totalLength));
var endTimeOfCurrentSegment = curTime + durationOfCurrentSegment;
var heading = new Vector(p2.X - p1.X, p2.Y - p1.Y) / durationOfCurrentSegment.TotalSeconds;
var currentPoint = p1;
PoI.SetSensorValue(curTime, KeyOrientationSensor, heading.ToAngleInDegrees());
PoI.SetSensorValue(curTime, KeyAnimateMove, link.Labels.ContainsKey(KeyAnimateMove)
? animations.IndexOf(link.Labels[KeyAnimateMove])
: 0);
for (var t = curTime; t < endTimeOfCurrentSegment; t += TimeSpan.FromSeconds(1))
{
PoI.SetSensorValue(t, KeyLongitude, currentPoint.X);
PoI.SetSensorValue(t, KeyLatitude, currentPoint.Y);
currentPoint += heading; // NOTE: Assumes a stepsize of 1 second
}
// Reset counters
curTime = endTimeOfCurrentSegment;
}
}
//Model.Service.HasSensorData = PoI.Sensors.ContainsKey(KeyLongitude);
});
}