这是一个简单方形的管子,但是运行之后怎么会出现光线呢?(见最后一图,管子边框为光线)
我明明没有定义光线的.请大家帮我指出错误. 附件为图形
SYSTEM NEW
RESET
UNITS MM
MEDIA
1.52 'PLASTIC'
FRESNEL AVE !! Calculate Fresnel reflections,
!! averaging the flux of the two
!! polarization states.
HLONG=30/2
HWIDE=0.5/2
HTHICK=0.5/2
GAP=0.001
SURFACE
PLANE X (HTHICK) RECTANGLE (HWIDE) (HLONG)
OBJECT '1'
INTERFACE COATING BARE AIR PLASTIC
SURFACE
PLANE X (-HTHICK) RECTANGLE (HWIDE) (HLONG)
OBJECT '2'
INTERFACE COATING BARE AIR PLASTIC
SURFACE
PLANE Z (-HLONG) RECTANGLE (HTHICK) (HWIDE)
OBJECT '3'
INTERFACE COATING BARE AIR PLASTIC
SURFACE
PLANE Z (HLONG) RECTANGLE (HTHICK) (HWIDE)
OBJECT '4'
INTERFACE COATING BARE AIR PLASTIC
SURFACE
PLANE Y (-HWIDE) RECTANGLE (HLONG) (HTHICK)
OBJECT '5'
INTERFACE COATING BARE AIR PLASTIC
SURFACE
PLANE Y (HWIDE) RECTANGLE (HLONG) (HTHICK)
OBJECT '6'
INTERFACE COATING BARE AIR PLASTIC
RETURN
PLOT FACET 5 5
WINDOW X Y
OBLIQUE
PLOT LOCALS OVERLAY ' the light pipe'