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············· xlHC?d0}
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macro 正文：········· %J b/HWC[
! centroid.zpl sfUKH;xC
! iH;IXv,b3
! Written by Kenneth Moore 9/1/92 M[}aQWT$v
! Added TIMER function 4/18/96 ? 3'O
! EW Z?q$
TIMER C%LXGM t
! wVMR&R <t
! The delta controls how many rays will be traced. A >vny 9^_
! delta of .025 will trace a 80 x 80 grid in the pupil. E4; @P']`
! 0D Q\ akh
delta = .025 loR,f&80=O
! e^ ZxU/e
print "This program computes the chief ray coordinates," c:OFBVZ
print "centroid coordinates, and middle coordinates for" VKtZyhK"h
print "the primary wave spot at each field position." MzP
q(`W
maxfield = maxf() O&vE 5%x
if maxfield == 0 then maxfield = 1 yr"BeTrS.
n = nsur() &40# _>W7
f = 1 r,FPTf
label 1 ='U>P(
R-
hx = fldx(f)/maxfield n 72+X
hy = fldy(f)/maxfield 1{0 L~
raytrace hx,hy,0,0 by0@G"AE+
format 10.4 R 32A2Ml
print $T-Pl57
print " X Field = ", fldx(f), fvH4 <c5x
print " Y Field = ", fldy(f) %7vjYvo>
print " X Chief = ",rayx(n), ^v+ 3qm@,
print " Y Chief = ",rayy(n) 'G>gNq
xraymax = -9e9 o)}M$}4
yraymax = -9e9 J.;{`U=:
xraymin = 9e9 O% }EpIP_
yraymin = 9e9 ;+6TZqklQ
xraytot = 0 u}~j NV
yraytot = 0 MjrI 0@R
numray = 0 POl_chq
numrayattempt = 0 J 6%CF2
px = -1 - delta *F)+- BB
label 2 :u4q.^&!e
px = px + delta L?:fyNA3[
py = -1 - delta )i$:iI
>k
label 3 7JL*y\ '
py = py + delta QH]G>+LI 5
rad = px*px + py*py _O w]kP='
if rad <= 0.9999999 "u=U@1 ^
raytrace hx, hy, px, py Xpp%j
numrayattempt = numrayattempt+1 N{<9N jmm
if !rayv(n) **************************** M>m+VsJV
numray = numray + 1 3Y6W)$ Q
x = rayx(n) 3`%U)gCT5
y = rayy(n) C(jUM !m
if (x < xraymin) then xraymin = x FcI ZG _
if (x > xraymax) then xraymax = x 23|R $s>}i
if (y < yraymin) then yraymin = y fHc/5uYW
if (y > yraymax) then yraymax = y )o\U4t
xraytot = xraytot + x -q6d&D'B+
yraytot = yraytot + y g71|t7Q
endif |on$ )vm
endif FKpyD
if py < 1.0 then goto 3 '|~L9t
if px < 1.0 then goto 2 /tqQA vj
if numray ?$Tp|<tx#
format 14.8 b xFDB^
print " X Centroid = ",xraytot/numray, @9ndr$t
print " Y Centroid = ",yraytot/numray PD$@.pib
print " X Middle = ",(xraymax+xraymin)/2, V
'e _gH
print " Y Middle = ",(yraymax+yraymin)/2 g*a|QBj%
format .0 K sR^ : _e
print " ",numray, " out of ", numrayattempt," rays made it through." SGK=WLGM8
else 2Ysl|xRo
print " No rays made it through!" .Km6
(U
endif Bq
9 Eu1
f=f+1 @Z{!T)#}j
if f<= nfld() then goto 1 9d8bh4[
print +GDT@,/
print "All field positions done!" rV6SN.
FORMAT 0.1 = (%+S<}
print "Elapsed time ", ETIM(), " seconds." aNxq_pRb
