please help

[Jerry]

So forget the animation path. Why not drive the
view along the desired path using the joystick navigation method
while recording the head position and orientation every frame.
Then during the experiment translate and rotate the observer
along those coordinates manually as if you were playing back a
recording of the desired motion.

[masaki]

from viz import *
import viztask

ground = add('tut_ground.wrl')
mainView = viz.get( viz.MAIN_VIEWPOINT )

positions = [[0,0,0],[0,0,0.15],[0,0,0.3],[0,0,0.45],[0,0,0.6],[0,0,0.75],[0,0,0.9],[0,0,1.05],[0,0,1.2],[0,0,1.35],[0,0,1.5],[0,0,1.65],[0,0,1.8],[0,0,1.95],[0,0,2.1],[0,0,2.25],[0,0,2.4],[0,0,2.55],[0,0,2.7],[0,0,2.85],[0,0,3],[0,0,3.15],[-0.00189704643856282,0,3.29998800356965],[-0.00569083587854888,0,3.44994001976712],[-0.0113807614942146,0,3.59983206340683],[-0.0189659131682755,0,3.74964015889596],[-0.0284450776374817,0,3.89934034406941],[-0.0398167386866824,0,4.04890867402259],[-0.0530790773913481,0,4.19832122494145],[-0.0682299724085118,0,4.34755409792921],[-0.085267000316083,0,4.49658342282896],[-0.10418743600048,0,4.64538536204184],[-0.124988253092518,0,4.79393611433984],[-0.147666124451485,0,4.94221191867294],[-0.172217422697326,0,5.09018905796967],[-0.198638220790847,0,5.23784386293077],[-0.226924292661862,0,5.38515271581514],[-0.257071113885158,0,5.53209205421752],[-0.289073862404187,0,5.67863837483741],[-0.322927419302368,0,5.82476823723843],[-0.358626369621871,0,5.9704582675977],[-0.396165003229748,0,6.11568516244454],[-0.435537315731287,0,6.26042569238789],[-0.476737009430427,0,6.40465670583194],[-0.519757494337091,0,6.54835513267926],[-0.564591889221268,0,6.69149798802094],[-0.611233022713687,0,6.83406237581306],[-0.65967343445289,0,6.97602549253898],[-0.709905376278538,0,7.1173646308568],[-0.761920813470746,0,7.25805718323149],[-0.815711426035257,0,7.39808064555097],[-0.871268610034244,0,7.53741262072574],[-0.92858347896253,0,7.67603082227133],[-0.987646865169011,0,7.81391307787307],[-1.04844932132304,0,7.95103733293262],[-1.11098112192553,0,8.08738165409566],[-1.17523226486463,0,8.22292423276015],[-1.24119247301552,0,8.3576433885647],[-1.30885119588429,0,8.4915175728564],[-1.37819761129552,0,8.62452537213754],[-1.44922062712332,0,8.7566455114908],[-1.52190888306552,0,8.88785685798218],[-1.59625075246079,0,9.0181384240413],[-1.67223434414837,0,9.14746937081838],[-1.74984750437003,0,9.2758290115175],[-1.82907781871418,0,9.40319681470545],[-1.90991261410152,0,9.52955240759587],[-1.99233896081214,0,9.6548755793078],[-2.07634367455368,0,9.7791462840986],[-2.16191331857019,0,9.9023446445702],[-2.24903420579132,0,10.0244509548486],[-2.33769240102169,0,10.1454456837358],[-2.42787372316976,0,10.2653094778341],[-2.51956374751621,0,10.3840231646412],[-2.61274780802117,0,10.5015677556176],[-2.70741099967008,0,10.6179244492233],[-2.8035381808578,0,10.7330746339253],[-2.90111397581056,0,10.8469998911746],[-3.00012277704531,0,10.9596819983526],[-3.10054874786623,0,11.0711029316850],[-3.20237582489778,0,11.1812448691258],[-3.30558772065414,0,11.2900901932072],[-3.41016792614439,0,11.3976214938578],[-3.51609971351320,0,11.5038215711876],[-3.62336613871643,0,11.6086734382388],[-3.73195004423145,0,11.7121603237031],[-3.84183406180146,0,11.8142656746044],[-3.95300061521362,0,11.9149731589462],[-4.06543192311039,0,12.0142666683243],[-4.17911000183372,0,12.1121303205031],[-4.29401666830157,0,12.2085484619561],[-4.40892333476941,0,12.3049666034091],[-4.52383000123726,0,12.4013847448621],[-4.63873666770511,0,12.4978028863150],[-4.75364333417295,0,12.5942210277680],[-4.8685500006408,0,12.690639169221],[-4.98345666710865,0,12.7870573106740],[-5.09836333357649,0,12.8834754521270],[-5.21327000004434,0,12.9798935935799],[-5.32817666651219,0,13.0763117350329],[-5.44308333298003,0,13.1727298764859]]
rotations = [0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,-0.0197823401541,-0.0395646803081,-0.083929374814,-0.151951089501,-0.276953041553,-0.433410406113,-0.632110178471,-0.965097725391,-1.28618347645,-1.77674126625,-2.21355104446,-2.83690094948,-3.36144304276,-4.07549285889,-4.6547999382,-5.42104721069,-6.11628723145,-6.82009744644,-7.52973175049,-8.242811203,-8.95811080933,-9.6739397049,-10.390291214,-11.0798664093,-11.8237514496,-12.5435218811,-13.259013176,-13.9761791229,-14.6936197281,-15.4109125137,-16.1280708313,-16.8457832336,-17.5646896362,-18.2805137634,-18.9967517853,-19.6809310913,-20.4329471588,-21.1172580719,-21.8678417206,-22.5517272949,-23.3028945923,-24.0169754028,-24.7385463715,-25.4126987457,-26.1709594727,-26.8571910858,-27.6046047211,-28.2732105255,-29.0410957336,-29.7245941162,-30.4749107361,-31.2565174103,-31.9090518951,-32.6843223572,-33.3464851379,-34.093547821,-34.7822227478,-35.4534912109,-36.2104263306,-36.8674621582,-37.651763916,-38.3268432617,-39.0805778503,-39.75831604,-40.5209617615,-41.3033027649,-41.9467315674,-42.7125434875,-43.3866958618,-44.1332626343,-44.810836792,-45.5930938721,-46.2115783691,-46.7850189209,-47.5163841248,-48.0392189026,-48.6333274841,-49.0393028259,-49.4651641846,-49.6783599854,-49.8670730591,-49.9598884583,-49.9899749756,-50.0002822876,-50.0074234009,-49.9894752502,-49.998878479,-50.0030937195,-50]



def playpath():
	path = addAnimationPath()

	for x in range (0,len(positions)):
			
		cp = add(CONTROL_POINT)
		cp.setPosition(positions[x])
		cp.translatemode(BEZIER)
		cp.rotatemode(BEZIER)
		#cp.rotate(rotations[x],0,0)

		path.add(cp,x)
			
	path.autorotate(ON)	#if i comment this out and use cp.rotate(rotations[x],0,0) above the first glitch goes away
	path.speed(8)
	path.translatemode(BEZIER)
	path.rotatemode(BEZIER)

	mainView.link(path)
	path.play()


def delaystart():
	yield viztask.waitTime(2)
	playpath()
viztask.schedule(delaystart())

go()