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············· .
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! centroid.zpl 7O:" ~L
! +hpSxdAz4
! Written by Kenneth Moore 9/1/92 EVG"._I@
! Added TIMER function 4/18/96 [1<(VyJ}ye
! oK)[p!D?0{
TIMER 'X54dXS?l
! t{~@ I
! The delta controls how many rays will be traced. A sqT^t!
! delta of .025 will trace a 80 x 80 grid in the pupil. ?<E0zM+
! 2@fa
rx:
delta = .025 A$Wx#r7)
! ~ ,T+JX
print "This program computes the chief ray coordinates," XYts8}y5
print "centroid coordinates, and middle coordinates for" X\kjAMuW/*
print "the primary wave spot at each field position." Y h S{$ Z
maxfield = maxf() +uELTHH=
if maxfield == 0 then maxfield = 1 bhn5Lz$z
n = nsur() w m19T7*L
f = 1 C *a,<`
label 1 /V#7=,,
hx = fldx(f)/maxfield X3AwM%,!
hy = fldy(f)/maxfield Jns/v6
raytrace hx,hy,0,0 n%*tMr9 s
format 10.4 B_cgWJ*4
print [NL -!
print " X Field = ", fldx(f), q4+Yv2e
<r
print " Y Field = ", fldy(f) J)#S-ZB+'k
print " X Chief = ",rayx(n), g** 5z'7
print " Y Chief = ",rayy(n) ?&6Q%IUW1
xraymax = -9e9 T!(sZf
yraymax = -9e9 8]HY. $E
xraymin = 9e9 pD[pTMG@$
yraymin = 9e9 ^( DL+r,
xraytot = 0 G~(& 3
yraytot = 0
k 1 RV'
numray = 0 $,@JYLC2
numrayattempt = 0 Wa<-AZnh
px = -1 - delta HJ", Sle
label 2 e :BDQU
px = px + delta u3ST;
py = -1 - delta L/%Y #
label 3
jC4O`
py = py + delta #hy+ L
rad = px*px + py*py nSHNis
if rad <= 0.9999999 %W&1`^Jl
raytrace hx, hy, px, py qEZ!2R^`G
numrayattempt = numrayattempt+1 me:iQ.g
if !rayv(n) **************************** G%$}WA] |
numray = numray + 1 4dD2{M
x = rayx(n) Ok,HD7
y = rayy(n) s*.3ZS5
if (x < xraymin) then xraymin = x I3PQdAs~&h
if (x > xraymax) then xraymax = x 9>;} /*:H
if (y < yraymin) then yraymin = y 9*DEv0}a^
if (y > yraymax) then yraymax = y G1/Gq.<
xraytot = xraytot + x y]
y9'5_
yraytot = yraytot + y bJPJ.+G7
endif - zQ<Z E
endif HD H
if py < 1.0 then goto 3 ] );NnsG
if px < 1.0 then goto 2 Sk$K qHX(
if numray vzG ABP
format 14.8 KGD'mByt"
print " X Centroid = ",xraytot/numray, ~?d>fR:X
print " Y Centroid = ",yraytot/numray XfDX:b1 p
print " X Middle = ",(xraymax+xraymin)/2, zIm-X,~I$
print " Y Middle = ",(yraymax+yraymin)/2 _ ~[M+IO
format .0 ]VDn'@uM
print " ",numray, " out of ", numrayattempt," rays made it through." 7 OWsHlU
else TaWaHf
print " No rays made it through!" =+\$e1Mb*
endif qX?[mdCHZ
f=f+1 !=y Q)l2
if f<= nfld() then goto 1 :X Lp
print {Xv3:"E"O
print "All field positions done!" e5 3,Rqi)@
FORMAT 0.1 e[8UH =`|
print "Elapsed time ", ETIM(), " seconds." O"iak
