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············· TCYjj:/
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macro 正文：········· _tTtq/ z<
! centroid.zpl /{vv n
! mnZ/rb
! Written by Kenneth Moore 9/1/92 td% ]l1
! Added TIMER function 4/18/96 6*8"?S'
! O]>9\ !0{
TIMER :0|]cHm
! Tqz{{]%j~$
! The delta controls how many rays will be traced. A S 1sNVW
! delta of .025 will trace a 80 x 80 grid in the pupil. U\a.'K50F
! #_0OYL`(mE
delta = .025 nd*9vxM
! {G&*\5W
print "This program computes the chief ray coordinates," `WQz_}TqB
print "centroid coordinates, and middle coordinates for" fgIzT!fyz
print "the primary wave spot at each field position." 1wP# ?p)c
maxfield = maxf() =cI -<0QSn
if maxfield == 0 then maxfield = 1 S&_Z,mT./
n = nsur() 2 eo]D?}
f = 1 Vp{! Ft8>
label 1 xS?[v &"2
hx = fldx(f)/maxfield \ofWD{*j
hy = fldy(f)/maxfield !2R~/Rg
raytrace hx,hy,0,0 d
4w+5H" u
format 10.4 )'3(=F$+l
print ]Q1? Ox:'
print " X Field = ", fldx(f), 1Q"w)Ta
print " Y Field = ", fldy(f) d.Wq@(ZoA
print " X Chief = ",rayx(n), $*w]]b$Dn
print " Y Chief = ",rayy(n) cK4Q! l6O
xraymax = -9e9 0NrUB
yraymax = -9e9 2z+Vt_%
xraymin = 9e9 >]K:lJ]l
yraymin = 9e9 VM=A#}
xraytot = 0 %EkV-%o*
yraytot = 0 ,{==f7|w
numray = 0 >a/ ]8A
numrayattempt = 0 q-gp;Fm
px = -1 - delta dz@L}b*
label 2 HwfB bWHr'
px = px + delta L c 4\i
py = -1 - delta .<&o, D
label 3 Ey<vvZ
py = py + delta 9RA~#S|(T
rad = px*px + py*py C".nB12
if rad <= 0.9999999 [Q+8Ku
raytrace hx, hy, px, py h0}r #L
numrayattempt = numrayattempt+1 /$
Gp <.z
if !rayv(n) **************************** F/,K8<|r>
numray = numray + 1 &U i*w%
x = rayx(n) wJ#fmQXKJ5
y = rayy(n) Mh
[TZfV
if (x < xraymin) then xraymin = x lh^-L+G:Ok
if (x > xraymax) then xraymax = x ) H=}bqn
if (y < yraymin) then yraymin = y u'Ja9m1
if (y > yraymax) then yraymax = y vEQw`OC
xraytot = xraytot + x ^w]N#%k\H
yraytot = yraytot + y PNy)Tq dRS
endif 3j<:g%5
endif 1eQfc{[g
if py < 1.0 then goto 3 |NuX9!S
if px < 1.0 then goto 2 aY`qb Jy
if numray .U}"ONd9e
format 14.8 ;MRK*sfw{
print " X Centroid = ",xraytot/numray, 8 KDF*%7'
print " Y Centroid = ",yraytot/numray ;Q *=AW
print " X Middle = ",(xraymax+xraymin)/2, Cka&b
print " Y Middle = ",(yraymax+yraymin)/2 MR4e.+#E
format .0 2XoFmV),F
print " ",numray, " out of ", numrayattempt," rays made it through." :
L}Fm2^
else }E[u" @}
print " No rays made it through!" U~9Y9qzy,
endif wxC& KrRF
f=f+1 R(YhVW_l
if f<= nfld() then goto 1 /mS |Byx
print '+?L/|'
print "All field positions done!" M"XILNV-~
FORMAT 0.1 i;:gBNmo=
print "Elapsed time ", ETIM(), " seconds." +=.>9
