def getUp(self, iFrame, iStep=0):
mtx = self.getTransform(iFrame, iStep)
up = self.getInitCameraUp()
o = numpy.array([0, 0, 0], dtype = numpy.double)
newUp = Transform.transform(mtx, up) - Transform.transform(mtx, o)
return newUp
def getPosition(self, iFrame, iStep=0):
mtx = self.getTransform(iFrame, iStep)
pt = self.getInitPosition()
return Transform.transform(mtx, pt)
