看下這個 QlCs,bT
EDGES !! or CURVE hYS}PE
R=5 !! Vertex radius of curvature r0fxEYze&
K=-1 !! Conic constant !m<v@SmL\
H=5 !! Outer aperture height ~ '/Yp8(
O=0 !! Inner obscuration height Oq3]ZUVa
CONIC X 0, 0 0 -2*R 1 0 K+1, Y (O) (H) !!構建拋物線 51&K
SHIFT Y 1 !!偏移 14
Toi
SWEEP AXIS 360 Z !!旋轉