看下這個 OwiWnS<
EDGES !! or CURVE G<u.+V
R=5 !! Vertex radius of curvature v`+n`DT
K=-1 !! Conic constant o eJC
H=5 !! Outer aperture height z^!A/a[[!
O=0 !! Inner obscuration height +ersP@G
CONIC X 0, 0 0 -2*R 1 0 K+1, Y (O) (H) !!構建拋物線 ? W2I1HEy
SHIFT Y 1 !!偏移 IJ_'w[k
SWEEP AXIS 360 Z !!旋轉