python 2.7 - finger position using leap motion -


i want use leap motion index finger tip position in space ( 3d position x,y,z ) , how can in leap motion ?

this detect index finger, there error : 

def on_frame(self, controller):     # recent frame , report basic information     frame = controller.frame()      finger = finger.type_index     print('type :  '+finger.type())     time.sleep(3)

i leap motion beginner, want guide me how that, , if there examples or codes ?

thanks :)

first off, have @ documentation leap motion python api. examine sample.py program in sdk samples folder. sample.py provides example getting every piece of information available api.

for specific problem above, finger.type_index gives enumeration or name index finger; not give instance of object representing index finger -- there's index finger each of hands , there can multiple hands in leap device's field of view -- index finger should return?

you can list of tracked fingers frame.fingers() , list of tracked fingers particular hand hand.fingers(). these lists, can filter particular type of finger using name (i.e. finger.type_index or type_thumb).

def on_frame(self, controller):     # recent frame , report basic information     frame = controller.frame()      fingers = frame.fingers()     index_fingers = fingers.finger_type(finger.type_index)     for(finger in index_fingers):         print('type :  '+finger.type())     time.sleep(3)

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