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············· W>(w&k]%B
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macro 正文：········· y\_k8RqE^
! centroid.zpl HcM/
! ) uTFId
! Written by Kenneth Moore 9/1/92 ,olP}
! Added TIMER function 4/18/96 '7
t:.88
! YySo%\d
TIMER _&N}.y)+t
! fZb}-
! The delta controls how many rays will be traced. A uyvjo)T
! delta of .025 will trace a 80 x 80 grid in the pupil. W<:x4gBa
! Y|S>{$W
delta = .025 Nx"|10gC
! o ~M=o:^nH
print "This program computes the chief ray coordinates," [l}H% S
print "centroid coordinates, and middle coordinates for" KNjU!Z/4
print "the primary wave spot at each field position." W5>emx'>
maxfield = maxf() > D%
if maxfield == 0 then maxfield = 1 <c$rfjM+JU
n = nsur() Xi;<O &+
f = 1 Vwb_$Yi+]
label 1 C{~O!^ 2G
hx = fldx(f)/maxfield z9E*1B+
hy = fldy(f)/maxfield tLcw?aB
raytrace hx,hy,0,0 MzH'<`;BP
format 10.4 u82 (`+B
print :LCyxLI
print " X Field = ", fldx(f), P !I Lji!
print " Y Field = ", fldy(f) w?P e x]i{
print " X Chief = ",rayx(n), f)mOeD*u|
print " Y Chief = ",rayy(n) R6TT1Ka3c
xraymax = -9e9 &+3RsIl W
yraymax = -9e9 pj$kSS|m6-
xraymin = 9e9 aYM~Ub:x{
yraymin = 9e9 FKUo^F?z
xraytot = 0 +J#8w h
yraytot = 0 ^6J*:(eM
numray = 0 `g <0FQA
numrayattempt = 0 *c
9 S.
px = -1 - delta WF:4p]0~)
label 2 \/b[V3<"
px = px + delta ]Ljb&*IEj
py = -1 - delta bu -6}T+
label 3 n 6G&c4g<"
py = py + delta DTa!vg
rad = px*px + py*py Qq'e#nI@
if rad <= 0.9999999 1OV] W
f
raytrace hx, hy, px, py 6s'n
r7'0
numrayattempt = numrayattempt+1 q[ 9N4nj$<
if !rayv(n) **************************** bGkLa/?S
numray = numray + 1 AD+OQLG]`
x = rayx(n)
n (|rs
y = rayy(n) HD& Cp
if (x < xraymin) then xraymin = x kP'm$+1or
if (x > xraymax) then xraymax = x z$L e ,+
if (y < yraymin) then yraymin = y Uf
M Q?(,
if (y > yraymax) then yraymax = y *Ms &WYN-
xraytot = xraytot + x !c dY`f6x
yraytot = yraytot + y QN|=/c<U
endif Mdh]qKw
endif : dNJ2&kJ
if py < 1.0 then goto 3 :@a0h
if px < 1.0 then goto 2 +TX4,"
if numray KuW>^mF(I
format 14.8 |3 Iug
print " X Centroid = ",xraytot/numray, @4MQ021(
print " Y Centroid = ",yraytot/numray |KVVPXtq%C
print " X Middle = ",(xraymax+xraymin)/2, b - bvkPN
print " Y Middle = ",(yraymax+yraymin)/2 8_ o~0lb
format .0 Q*M(d\V s
print " ",numray, " out of ", numrayattempt," rays made it through." /Kq'3[d8
else c&,q`_t
print " No rays made it through!" J Vxja<43
endif Gs,e8ri!
f=f+1 f/s" 2r
if f<= nfld() then goto 1 k"C'8<T)'
print \Rb:t }
print "All field positions done!" 9_?e, Q
FORMAT 0.1 !|j|rYi-
print "Elapsed time ", ETIM(), " seconds." qj `C6_?
