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············· y\6C9%.
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macro 正文：········· qCk`398W
! centroid.zpl Ey& A\
! >0N$R|B&
! Written by Kenneth Moore 9/1/92 K#v @bu:'
! Added TIMER function 4/18/96 LD|T1 .
! [A uA<
TIMER ayf;'1
! $f"Ce,f
! The delta controls how many rays will be traced. A !M6Km(>
! delta of .025 will trace a 80 x 80 grid in the pupil. @MH/e fW.
! w(%$~]h
delta = .025 gU@.IOg
! n?^X/R.22
print "This program computes the chief ray coordinates," "8[Vb#=*e
print "centroid coordinates, and middle coordinates for" SsL> K*t5
print "the primary wave spot at each field position." \$8p8MP<&D
maxfield = maxf() /h!iLun7I
if maxfield == 0 then maxfield = 1 L# T`h}1Z
n = nsur() rYyEs
I#qo
f = 1 !E/%H v1
label 1 ]\=M$:,RZ
hx = fldx(f)/maxfield wqn }t ]
hy = fldy(f)/maxfield w`Z@|A
raytrace hx,hy,0,0 =H^^A G\}
format 10.4 aj]%c_])(
print =Rf!i78c5
print " X Field = ", fldx(f), ;fY)7
'
print " Y Field = ", fldy(f) ~o/ e0
print " X Chief = ",rayx(n), A$'rT |>se
print " Y Chief = ",rayy(n) JA?P jo
xraymax = -9e9 / ='/R7~
yraymax = -9e9 ~ gb q^
xraymin = 9e9 @ GzN0yXhR
yraymin = 9e9 ' "Dgov$q
xraytot = 0 ,OO 0*%
yraytot = 0 6n.C!,Zmn
numray = 0 I^y, @EHR
numrayattempt = 0 Z}6H529[
px = -1 - delta \C E8S+Z%
label 2 0 Pa\:^/6
px = px + delta g~= #8nJ
py = -1 - delta !Zf)N_k
label 3 -Z%B9ql'
py = py + delta bQ2 '*T
rad = px*px + py*py >sE{c>R%
if rad <= 0.9999999 jJCd2O]
raytrace hx, hy, px, py DJhCe==$v
numrayattempt = numrayattempt+1 ;GxKPy
if !rayv(n) **************************** \XlT
numray = numray + 1 [L@ vC>G
x = rayx(n) ~I)\d/7o
y = rayy(n) }M9L,O*^
if (x < xraymin) then xraymin = x }<kpvd+ps=
if (x > xraymax) then xraymax = x Z:}d\~`x$%
if (y < yraymin) then yraymin = y 7w{>bYP
if (y > yraymax) then yraymax = y ~nG?>
xraytot = xraytot + x x5}R u0Z
yraytot = yraytot + y VDq?,4Kb
endif hpJi,4r.d
endif ;M"JN:J8
if py < 1.0 then goto 3 gaw/3@
if px < 1.0 then goto 2 ?-0>Wbg
if numray M RdZ '
format 14.8 L?e N( L
print " X Centroid = ",xraytot/numray, vrD]o1F
print " Y Centroid = ",yraytot/numray \{[Gdj`
print " X Middle = ",(xraymax+xraymin)/2, ?F9:rUyN
print " Y Middle = ",(yraymax+yraymin)/2 f?1?$Sp/W
format .0 RE(R5n28,
print " ",numray, " out of ", numrayattempt," rays made it through." 3Vl?;~ :5
else SXA_P{j&a
print " No rays made it through!" e " f/
endif D?3^> h
f=f+1 _"B5 S?
if f<= nfld() then goto 1 'J&$L c
print T Prqb
print "All field positions done!" ZVj/lOP X
FORMAT 0.1 4c*?9r@
print "Elapsed time ", ETIM(), " seconds." q}#4bB9
