public static int Distance(LocalPatternMatch p0, LocalPatternMatch p1, int length, int w)
{
double k = (Math.Abs(p0.AmplitudeDelta - p1.AmplitudeDelta));
var d = (int) (k*k*AMP_WEIGHT);
var t = (int) (g(GapX(p0, p1, length, w)) + g(GapY(p0, p1, length, w)));
return t + d;
}
public static LocalPatternMatch CreateFrom(LocalPattern p0, LocalPattern p1)
{
var match = new LocalPatternMatch();
match.Dist = p0.DistanceTo(p1);
match.X = p0.Position;
match.Y = p1.Position;
match.PositionDelta = p1.Position - p0.Position;
match.AmplitudeDelta = p1.Amplitude - p0.Amplitude;
match.TempScaleDelta = p1.TemporalScale - p0.TemporalScale;
match.AmpScaleDelta = p1.AmplitudeScale - p0.AmplitudeScale;
return match;
}
public static double GapY(LocalPatternMatch p0, LocalPatternMatch p1, int length, int w)
{
if (p1.Y > p0.Y)
return Math.Max((p1.Y - p0.Y)*length - w, 1);
return Spade.INF_COST;
}
public static double GapX(LocalPatternMatch p0, LocalPatternMatch p1, int length, float w)
{
if (p1.X > p0.X)
return Math.Max((p1.X - p0.X)*length - w, 1);
return Spade.INF_COST;
}
public static int DistanceToPs(LocalPatternMatch p, int length, int w)
{
return (int) (g(p.X*length - w/2) + g(p.Y*length - w/2));
}