最近闲的无聊，看zemax的macro 下面有个宏里自带的macro，原样附下，讨论下标记为 ****************************的作用，为什么要以渐晕为判断标准，这个渐晕的真正作用是干什么的？附下RAYV（）->如果无渐晕则为0，否则为渐晕面的编号。(0 if ray was not vignetted,else vignetted surface number.valid only after a RAYTRACE or RAYTRACEEX call)。若大神赐教，小弟感激流涕············· Q0oDl8~
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macro 正文：········· ;:K?7w fXn
! centroid.zpl \?Oa}&k$F8
! Zp P6Q
! Written by Kenneth Moore 9/1/92 c9 TkIe
! Added TIMER function 4/18/96 U1@ P/
! ^SES')x
TIMER =?Q Qb>
! ~o \ ]K
! The delta controls how many rays will be traced. A r' }k`A 5>
! delta of .025 will trace a 80 x 80 grid in the pupil. #p^pv dvh3
! jq]\oY8y
delta = .025 u=?P*Y/|W
! JZ*?1S>
print "This program computes the chief ray coordinates," )I1V 2k$n
print "centroid coordinates, and middle coordinates for" :Y&W)V-
print "the primary wave spot at each field position." /-} p7AM
maxfield = maxf() 3 jQ$72_
if maxfield == 0 then maxfield = 1 4iB)o R
n = nsur() Ay. q )
f = 1 OjL"0imN6
label 1 ;@$, "
P
hx = fldx(f)/maxfield ;?[ +vf")
hy = fldy(f)/maxfield Sv[_BP\^h
raytrace hx,hy,0,0 kO O~%|1CP
format 10.4 REe%>|
print P)
0=@{(
print " X Field = ", fldx(f), ;{# M
print " Y Field = ", fldy(f) D"> <S<C\C
print " X Chief = ",rayx(n), (i nwKRH
print " Y Chief = ",rayy(n) SOY#, Zu
xraymax = -9e9 {d5ur@G1
yraymax = -9e9 `rFGSq$ 9
xraymin = 9e9 oA^
]x>
yraymin = 9e9 x[<#mt
xraytot = 0 >WG91b<Xq
yraytot = 0 ]0nC;|]@Lx
numray = 0 i_9/!D
numrayattempt = 0 3xR#,22:}
px = -1 - delta UEb 'E;
label 2 eh#
(}v
px = px + delta T%xL=STJNy
py = -1 - delta Y@xeyMzE
label 3 %y~]3XWik
py = py + delta krT !AfeV
rad = px*px + py*py GoGgw]h>x
if rad <= 0.9999999 yru}f;1
raytrace hx, hy, px, py D+nj[ 8y
numrayattempt = numrayattempt+1 $zH 0$aOx
if !rayv(n) **************************** &_T jRj"
numray = numray + 1 15yV4wHr
x = rayx(n) T_
#oMXZ/
y = rayy(n) z+`)|c4-
if (x < xraymin) then xraymin = x JN|#
if (x > xraymax) then xraymax = x Tp.iRFFkP
if (y < yraymin) then yraymin = y n/|`Dz.
if (y > yraymax) then yraymax = y hndRg Co
xraytot = xraytot + x ]t 0S_ UH$
yraytot = yraytot + y ~ZIRCTQ"
endif 6R,b 8
endif = nN*9HRD
if py < 1.0 then goto 3 Fi}rv[`XY[
if px < 1.0 then goto 2 Rs `Y'_B
if numray ho=]'MS|
format 14.8 qt;Tfuo
print " X Centroid = ",xraytot/numray, ooxzM `
print " Y Centroid = ",yraytot/numray QxL
FN(d
print " X Middle = ",(xraymax+xraymin)/2, lBC-G *#
print " Y Middle = ",(yraymax+yraymin)/2 _
q1|\E%`h
format .0 _ o3}Ly}
print " ",numray, " out of ", numrayattempt," rays made it through." gx.]4 v
else *g}&&$b0
print " No rays made it through!" CzbNG^+
endif :cz]8~i\
f=f+1 j ZafwBi
if f<= nfld() then goto 1 'Z9F0l"Nr
print f.CI.aozW
print "All field positions done!" $S (" - 3
FORMAT 0.1 H( m+rk
print "Elapsed time ", ETIM(), " seconds." ${2fr&Tp
