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············· z+K -aj w
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macro 正文：········· TBN0u k
! centroid.zpl ,GB~Cmc1<Q
! ]d$:R`;
! Written by Kenneth Moore 9/1/92 IJxBPwh
! Added TIMER function 4/18/96 ~C1lbn b
! )[d?&GK
TIMER -a``
! (!72Ea w:]
! The delta controls how many rays will be traced. A 'D ,efTq
! delta of .025 will trace a 80 x 80 grid in the pupil. x;&01@m.
! eI8rnp( Ia
delta = .025 vUEG0{8 l
! (yjx+K_[
print "This program computes the chief ray coordinates," "P) f ,n
print "centroid coordinates, and middle coordinates for" 4K_rL{s0U
print "the primary wave spot at each field position." _i_^s0J
maxfield = maxf() `0 .<
if maxfield == 0 then maxfield = 1 J<g $hk
n = nsur() #wXq' yi
f = 1 \qx$ h!<
label 1 D=hy[sDBw
hx = fldx(f)/maxfield !c}?u_Z/
hy = fldy(f)/maxfield {}r# s>
raytrace hx,hy,0,0 :fo.9J
format 10.4 zX{O "w
print PtH>I, /
print " X Field = ", fldx(f), ,$"*X-1
print " Y Field = ", fldy(f) R ra3)i`*
print " X Chief = ",rayx(n), !i >&z ?
print " Y Chief = ",rayy(n) asDk@G cu
xraymax = -9e9 L5(7;
yraymax = -9e9 uY{zZ4iw
xraymin = 9e9 Un [ olp
yraymin = 9e9 I4[sf
xraytot = 0 M]FA
y "E
yraytot = 0 !V<c:6"
numray = 0 g+g0i S
numrayattempt = 0 1~J:hjKQ
px = -1 - delta fN)A`> iP
label 2 v BP
5n
px = px + delta ]]sy+$@~
py = -1 - delta EESGU(
label 3 bl 8zcpdL
py = py + delta 29a~B<e7s
rad = px*px + py*py UweXz.x7
if rad <= 0.9999999 \fX0&l;T9\
raytrace hx, hy, px, py ;rp("<g:>
numrayattempt = numrayattempt+1 ;k W+
if !rayv(n) **************************** %A qt0e
numray = numray + 1 c@eQSy
x = rayx(n) 8C,}nh
y = rayy(n) mP!=&u fcU
if (x < xraymin) then xraymin = x 8i
epG
if (x > xraymax) then xraymax = x ^{<!pvT
if (y < yraymin) then yraymin = y prIPPeMdz
if (y > yraymax) then yraymax = y XZh1/b^DMN
xraytot = xraytot + x h>w(Th\H
yraytot = yraytot + y H0!LiazA>
endif /$z(BX/
endif =nVEdRU
if py < 1.0 then goto 3 D)O2=aQ;]
if px < 1.0 then goto 2 sJI"
m'r=Z
if numray Z.^DJ9E<1
format 14.8 $Ph
T :
print " X Centroid = ",xraytot/numray, _Wb3,E a=
print " Y Centroid = ",yraytot/numray x=S8UKUx
print " X Middle = ",(xraymax+xraymin)/2, +'-i (]@!'
print " Y Middle = ",(yraymax+yraymin)/2 TnuaP'xZ
format .0 1{fu
print " ",numray, " out of ", numrayattempt," rays made it through." g- C)y
06
else Oax6_kmOj
print " No rays made it through!" QIK;kjr*A3
endif #F|q->2`o
f=f+1 iBqxz:PHN(
if f<= nfld() then goto 1 l:@`.'-=
print q0m> NA
print "All field positions done!" S9
p*rk ~
FORMAT 0.1 K/flg|uZ/V
print "Elapsed time ", ETIM(), " seconds." =qJlSb
