看下這個 chs] ,7R
EDGES !! or CURVE lFT`
WO
R=5 !! Vertex radius of curvature qC:QY6g$N
K=-1 !! Conic constant ve&"x Nz<
H=5 !! Outer aperture height )0UXTyw^
O=0 !! Inner obscuration height efUa[XO
CONIC X 0, 0 0 -2*R 1 0 K+1, Y (O) (H) !!構建拋物線 [#mRlL0yk
SHIFT Y 1 !!偏移 LAjreC<W
SWEEP AXIS 360 Z !!旋轉