N@Radar Manual
I@Xc Yc Zc Xi Yi Zi
O@Xo Yo Zo Fade Next Center
interval(20)
Ratio = 0.02
Fade = 1000, Next = !Next
Xo = (Xi - Xc) * Ratio + Xc
Yo = (Yi - Yc) * Ratio + Yc
Zo = (Zi - Zc) * Ratio + Zc
Center = send(Xc, Yc, Zc)