看下這個 V``|<`!gd
EDGES !! or CURVE PpRS4*nR
R=5 !! Vertex radius of curvature GEPWb[Oa
K=-1 !! Conic constant [_N1
.}e
H=5 !! Outer aperture height s$y_(oU,D
O=0 !! Inner obscuration height sBlq)h;G?6
CONIC X 0, 0 0 -2*R 1 0 K+1, Y (O) (H) !!構建拋物線 ?MDo. z3
SHIFT Y 1 !!偏移 d /jx8(0
SWEEP AXIS 360 Z !!旋轉