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············· nUqL\(UuY
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macro 正文：········· qzHU)Ns(_
! centroid.zpl }v&K~ !*
! My],6va^
! Written by Kenneth Moore 9/1/92 {yU0D*#6
! Added TIMER function 4/18/96 |C4o zl=O?
! g<a<{|
TIMER D=JlA~tS>
! `xGT_0&ck
! The delta controls how many rays will be traced. A UtPwWB_YV
! delta of .025 will trace a 80 x 80 grid in the pupil. cPSti
! "G @E6{/
delta = .025 EFD?di)s
! St_S l:m$
print "This program computes the chief ray coordinates," hu&n=6
print "centroid coordinates, and middle coordinates for" s4N,^_j
print "the primary wave spot at each field position." }9
?y'6l
maxfield = maxf() e]Puv)S>{8
if maxfield == 0 then maxfield = 1 ]y}Zi/zh
n = nsur() k3#wLJ
f = 1 y%FYXwR{
label 1 eq{
[?/
hx = fldx(f)/maxfield lj
Y
hy = fldy(f)/maxfield !9PX\Xbn
raytrace hx,hy,0,0 JC/d:.
format 10.4 5Vm Ey b
print T"IW Jpc
print " X Field = ", fldx(f), sc9]sIb
print " Y Field = ", fldy(f) 8a?IC|~Pz
print " X Chief = ",rayx(n), SbCJ|z#?
print " Y Chief = ",rayy(n) eA1'qww"'
xraymax = -9e9 =^ #0.
yraymax = -9e9 E~}[+X@
xraymin = 9e9 y1nP F&_
yraymin = 9e9 i"vD RrDe
xraytot = 0 'Z y{mq\
yraytot = 0 u !M& ;QL
numray = 0 8z?$t-D O
numrayattempt = 0 x~% \y
px = -1 - delta 8cB=}XgYS
label 2 @f\
X4!e*y
px = px + delta /8:gVXZi
py = -1 - delta s
*K:IgJ/
label 3 \Ec
X!aC
py = py + delta } mgVC
rad = px*px + py*py Nz}|%.GP"
if rad <= 0.9999999 DhHtz.6
raytrace hx, hy, px, py 2UQN*_
numrayattempt = numrayattempt+1 `..E Q BM
if !rayv(n) **************************** a$A2IkD
numray = numray + 1 *u58l(&`8
x = rayx(n) S io1Q0
y = rayy(n) aD0Q 0C+
if (x < xraymin) then xraymin = x ~ 0av3G
if (x > xraymax) then xraymax = x wE)]
ah:
if (y < yraymin) then yraymin = y 87R %ke
if (y > yraymax) then yraymax = y r}Ltv?4
xraytot = xraytot + x =P 1RdyP
yraytot = yraytot + y hjw4Xz ju
endif gfV ]^v
endif \A` gK\/h
if py < 1.0 then goto 3 $ V3n~.=
if px < 1.0 then goto 2 y|$ vtD%c
if numray u<x[5xH+
format 14.8 {`($Q$Q1
print " X Centroid = ",xraytot/numray, *Rz!i m|
print " Y Centroid = ",yraytot/numray O}e|P~W
print " X Middle = ",(xraymax+xraymin)/2, llHN2R%(
print " Y Middle = ",(yraymax+yraymin)/2 \dC.%#
format .0 "0!~g/X`rK
print " ",numray, " out of ", numrayattempt," rays made it through." l#
}As.o}
else 2*N&q|ED
print " No rays made it through!" /j`i/Ha1
endif )r-T=
f=f+1 pM1=U F
if f<= nfld() then goto 1 %g!yccD9
print 0TpBSyx.
print "All field positions done!" lO%MyP
FORMAT 0.1 vd2uD2%con
print "Elapsed time ", ETIM(), " seconds." LZgwIMd
