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············· l7G&[\~
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macro 正文：········· _YVp$aKDR
! centroid.zpl Gc= #
! c"X` OB
! Written by Kenneth Moore 9/1/92 m jdZ ^
! Added TIMER function 4/18/96 [a~|{~?8
! cx?XJ )
TIMER 8 VMe#41
! K07b#`NF6
! The delta controls how many rays will be traced. A rzC\8Dd
! delta of .025 will trace a 80 x 80 grid in the pupil. l 4c9.'6
! 96fz SZS,
delta = .025 #DMt<1#:
! 2BA'Zu`
print "This program computes the chief ray coordinates," m'h`%0Tc
print "centroid coordinates, and middle coordinates for" T;(k
print "the primary wave spot at each field position." S]^`Qy)
maxfield = maxf() _~ m@ SI
if maxfield == 0 then maxfield = 1 `9;:mR $
n = nsur() 1#H=<iJ
f = 1 p|Po##E}g^
label 1 JTuU}nm+
hx = fldx(f)/maxfield VUF^ r7e
hy = fldy(f)/maxfield %u"3&kOV
raytrace hx,hy,0,0 w}= "}Cb
format 10.4 D$|@:
mW
print -3
.Sr|t
print " X Field = ", fldx(f), ~(4;P%L:
print " Y Field = ", fldy(f) }EB/1 8
print " X Chief = ",rayx(n), 5[Sa7Mk
print " Y Chief = ",rayy(n) !Yx 9=>R
xraymax = -9e9 Hk'D@(h S
yraymax = -9e9 4(5NHsvp
xraymin = 9e9 OQt_nb#z`{
yraymin = 9e9 $RxS<_tj
xraytot = 0 qKX 3Npw
yraytot = 0 _U%a`%tU.
numray = 0 .W _'6Q+
numrayattempt = 0 HyKvDJ
3_
px = -1 - delta C*A!`Q?1Y
label 2 >B U"C+a8g
px = px + delta Q kJAjm B
py = -1 - delta L F\4>(C2g
label 3 - inZX`afA
py = py + delta :q_(=EA
rad = px*px + py*py 9VyY [&
if rad <= 0.9999999 _tJp@\rOz=
raytrace hx, hy, px, py *c<=IcA
numrayattempt = numrayattempt+1 9ohaU
if !rayv(n) **************************** cE3g7(a
numray = numray + 1 CAX) AN
x = rayx(n) IKT3T_\-I
y = rayy(n) /"w%?Ea
if (x < xraymin) then xraymin = x 15NeC7GAh
if (x > xraymax) then xraymax = x !g=2U` j^
if (y < yraymin) then yraymin = y {C6,h#|pg
if (y > yraymax) then yraymax = y kXw& *B-/
xraytot = xraytot + x b 4o`eR
yraytot = yraytot + y M`6rI
endif V\U,PNkZQ
endif .wj?}Fr?97
if py < 1.0 then goto 3 ^Ec);Z
if px < 1.0 then goto 2 +6dq+8msF
if numray 0s >ozAJ
format 14.8 D?yiK=:08`
print " X Centroid = ",xraytot/numray, UVND1XV^f
print " Y Centroid = ",yraytot/numray =ELl86=CG
print " X Middle = ",(xraymax+xraymin)/2, 0E[&:6#Y
print " Y Middle = ",(yraymax+yraymin)/2 Tw^b!74gq
format .0 4 hRc,Vq
print " ",numray, " out of ", numrayattempt," rays made it through." rVo0H.+N)`
else ?)x"+[2
print " No rays made it through!" ~.-o *
endif "UUzLa_
f=f+1 $\:;N]Cs~0
if f<= nfld() then goto 1 Fp3NWvu
print lOk'stLNa&
print "All field positions done!" %kB84dE
FORMAT 0.1 l_ Ee us
print "Elapsed time ", ETIM(), " seconds." {<f |h)r
