看下這個 Md6]R-l@
EDGES !! or CURVE (iJ1
;x
R=5 !! Vertex radius of curvature U t-B^x)gl
K=-1 !! Conic constant Tu{&v'!j6
H=5 !! Outer aperture height X8dR+xd
O=0 !! Inner obscuration height 07Gv* .
CONIC X 0, 0 0 -2*R 1 0 K+1, Y (O) (H) !!構建拋物線 |6UtW{2I/
SHIFT Y 1 !!偏移 "Td`AuP@,
SWEEP AXIS 360 Z !!旋轉