看下這個 IP ,.+:i
EDGES !! or CURVE $7NCb7%/L
R=5 !! Vertex radius of curvature xQU"A2{}>
K=-1 !! Conic constant 8eJE>g1J
H=5 !! Outer aperture height d>|;f
O=0 !! Inner obscuration height Uw)=WImz[
CONIC X 0, 0 0 -2*R 1 0 K+1, Y (O) (H) !!構建拋物線 HCj>,^<h
SHIFT Y 1 !!偏移 w2OsLi Sv
SWEEP AXIS 360 Z !!旋轉