看下這個 dT0W8oL
EDGES !! or CURVE ZhY{,sy?QO
R=5 !! Vertex radius of curvature zdwQpB,+^
K=-1 !! Conic constant :Vxt2@p{
H=5 !! Outer aperture height g!~SHW)l
O=0 !! Inner obscuration height B[ZQn]y
CONIC X 0, 0 0 -2*R 1 0 K+1, Y (O) (H) !!構(gòu)建拋物線 )(]rUJ~+~A
SHIFT Y 1 !!偏移 \)dp
SWEEP AXIS 360 Z !!旋轉(zhuǎn)