def recognize(self, traces):
#security verification
for trace in traces:
if len(trace) < 2:
return (None, 0) #return none gesture
#information about the gesture
numTracesGesture = len(traces)
pointsGesture = Helper.normalizeGesture(traces)
#comparison process
bestDistance = float('infinity')
bestTemplate = None
for template in self.templates:
distance = Helper.distanceAtBestAngle(pointsGesture, numTracesGesture, template, -angleRange, +angleRange, anglePrecision)
if distance < bestDistance:
bestDistance = distance
bestTemplate = template
score = 1.0 - (bestDistance / halfDiagonal)
#get the best template
if bestTemplate == None:
return(None, 0)
else:
return (bestTemplate.name, score)
def __init__(self, name, gesture): self.name = name self.numTracesGesture = len(gesture) self.points = Helper.normalizeGesture(gesture)