//public override bool strokeFitsMap(Stroke s)
//{
// var areaPoints = LinearInterpolation.getPointsByDistance(new LinearInterpolation(s.Points), AreaPointDistance);
// return !areaPoints.Zip(areas,
// (p, a) => a.PointInToleranceArea(p.X, p.Y)
// ).Any(b => !b);
//}
public override Observation[] getSymbolTrace(BaseTrajectory s)
{
var strokeInterpolation = (translationInvariant) ?
new LinearInterpolation(s.getInvariantPoints()) :
new LinearInterpolation(s.TrajectoryPoints);
var areaPoints = LinearInterpolation.getPointsByDistance(strokeInterpolation, AreaPointDistance);
//ToDo: tolerate longer inputs than trained?
//if (areaPoints.Length > Areas.Length) return null;
//ToDo: tolerate shorter inputs?
if (areaPoints.Length < Areas.Length)
{
return(null);
}
var observations = new Observation[Areas.Length + 2]; //+ GS and GE
int iObs = 1;
string baseSym = "S" + ID + "_A";
string symbol;
long time;
for (int iArea = 0; iArea < Areas.Length; iArea++)
{
var area = Areas[iArea];
if (iArea >= areaPoints.Length)
{
break;
}
var point = areaPoints[iArea];
if (area.PointInArea(point.X, point.Y))
{
symbol = baseSym + (iArea + 1) + "_Hit";
time = point.Time;
}
else if (area.PointInToleranceArea(point.X, point.Y))
{
symbol = baseSym + (iArea + 1) + "_Tolerance";
time = point.Time;
}
else
{
return(null);
}
observations[iObs++] = new Observation(symbol, time);
}
//GestureStart symbol
observations[0] = new Observation("GestureStart", s.TrajectoryPoints[0].Time);
//GestureEnd symbol
observations[observations.Length - 1] = new Observation("GestureEnd", s.TrajectoryPoints[s.TrajectoryPoints.Length - 1].Time);
return(observations);
}
private void generateSmallestEnclosingCircles()
{
var areaPointsPerStroke = interpolatedStrokes.Select(s => LinearInterpolation.getPointsByDistance(s, AreaPointDistance)).ToArray();
//var maxNArea = areaPointsPerStroke.Max(areaPoints => areaPoints.Length);
//Areas = Enumerable.Range(0, maxNArea).Select(
// a => new SmallestEnclosingCircle(areaPointsPerStroke.Where(points => points.Length > a).Select(points => points[a])) //Where was added here due to different area counts
// ).ToArray();
var minNArea = areaPointsPerStroke.Min(areaPoints => areaPoints.Length);
Areas = Enumerable.Range(0, minNArea).Select(
a => new SmallestEnclosingCircle(areaPointsPerStroke.Select(points => points[a]))
).ToArray();
}
