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············· %a- *K u
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macro 正文：········· o RT<h
! centroid.zpl =\;yxl
! w E^6DNh
! Written by Kenneth Moore 9/1/92 $^|I? 5xD
! Added TIMER function 4/18/96 Id`? yt
! H'N$Vv2q
TIMER NjT#p8d X
! ?;1^8 c0
! The delta controls how many rays will be traced. A o4I&?d7;"
! delta of .025 will trace a 80 x 80 grid in the pupil. r[>4b}4s
! )NG{iD{_]
delta = .025 (#6E{@eq
! m/W0vPM 1
print "This program computes the chief ray coordinates," Rv R ,V
print "centroid coordinates, and middle coordinates for" MRzrZZ%LQ
print "the primary wave spot at each field position." 9GdQ$^m
maxfield = maxf() cR.[4rG'
if maxfield == 0 then maxfield = 1 d4@\5<
n = nsur() d5?"G Fy
f = 1 ="fq.Tt
label 1 ? U~}uG^
hx = fldx(f)/maxfield b"x[+&%i
hy = fldy(f)/maxfield TE+d?
raytrace hx,hy,0,0 4 Y>v+N^
format 10.4 O&=40"Dr
print \Kh@P* 7
print " X Field = ", fldx(f), 7bBOV(/s
print " Y Field = ", fldy(f) _y~H#r9:
print " X Chief = ",rayx(n), joaf0
print " Y Chief = ",rayy(n) 4}nsW}jCc
xraymax = -9e9 &mebpEHUG7
yraymax = -9e9 Op] L#<&T
xraymin = 9e9 8ut:cCrmg
yraymin = 9e9 u@!iByVAg
xraytot = 0 @)0-oa,u+
yraytot = 0 ,/ V'(\>
numray = 0 q3 .L6M
numrayattempt = 0 oS'M
px = -1 - delta w3j51v` 0'
label 2 |E+tQQr%'
px = px + delta n ,<`.^
py = -1 - delta ]V9z)uz
label 3 ~r`~I"ZK7^
py = py + delta }hT1@ I
rad = px*px + py*py r Ntc{{3_
if rad <= 0.9999999
0>D :
raytrace hx, hy, px, py # L\t)W
numrayattempt = numrayattempt+1 ;bJ2miO"e
if !rayv(n) **************************** $#V ^CmW.
numray = numray + 1 |JVeW[C
x = rayx(n) @uc N|r}=R
y = rayy(n) |.D _[QI
if (x < xraymin) then xraymin = x ?H9F"B$a
if (x > xraymax) then xraymax = x yK"OZ2Mv
if (y < yraymin) then yraymin = y M,Y lhL
if (y > yraymax) then yraymax = y 2i);2>HLG
xraytot = xraytot + x g*9jPw dG
yraytot = yraytot + y Q C:/xP
endif \Fh k>
endif "P:kZ= M
Q
if py < 1.0 then goto 3 /f!_dJ^
if px < 1.0 then goto 2 H!dUQ
if numray y%T5"p$,
format 14.8 :j/PtNT@
print " X Centroid = ",xraytot/numray, c"+N{$ vp
print " Y Centroid = ",yraytot/numray V'h
O
print " X Middle = ",(xraymax+xraymin)/2, bTzVm qGY
print " Y Middle = ",(yraymax+yraymin)/2 ^
K 8JE,
format .0 #80*3vi~F
print " ",numray, " out of ", numrayattempt," rays made it through." UV>^[ /^O
else C~M~2@Iori
print " No rays made it through!" A%u@xL,_
endif ]y 6`9p
f=f+1 M%7H-^{
if f<= nfld() then goto 1 \~xOdqF/
print ?v2OoNQ
print "All field positions done!" J.x>*3< l
FORMAT 0.1 ]rM{\En
print "Elapsed time ", ETIM(), " seconds." ~Z5?\a2Ld
