Get the point on the path at t Path can be described parametrically in the form of (x(t), y(t)) Path starts at t=0 and ends at t=1
parameter
if true, the path is closed
Optional
segment_index: numberIf segment_index
(n) is defined, get the point at the nth segment.
If segment_index
(n) is defined, t can be outside of [0, 1] and will return the extrapolated point.
the position of the point
add points to the path