manipulating viewpoint

[jaylocco]

ahah...just encounter this...by using the spinto, how do I determine the degree of angle for it to animate back to the original position? because the amount of degree depends on how long I press the Right or Left button. Which mean, it is not fix to an amount of degree.Or, is there anyway that I can calculate the angle based on how long I press the button? so that I could assign the value to a variable which later to be applied in spinto

Degree = 'amount of degree'

<viewpoint>.spinto([x,y,z,Degree],value)