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············· ^g70AqUc
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macro 正文：········· #>@<n3rq
! centroid.zpl I J qv w
! - J{Dxz
! Written by Kenneth Moore 9/1/92 pn|p(6
! Added TIMER function 4/18/96 4 |FRg
! a5X`jo
TIMER 3Ca
\`m)l
! ^=Q8 ]W_*
! The delta controls how many rays will be traced. A fE'-.nA+
! delta of .025 will trace a 80 x 80 grid in the pupil. Ft )t`E'%j
! mVa?aWpez
delta = .025 ]b s+:
! 5r^1CFO
print "This program computes the chief ray coordinates," <V7SSm
print "centroid coordinates, and middle coordinates for" n?zbUA#
print "the primary wave spot at each field position." 45?*:)l:
maxfield = maxf() A*rZQh
b[
if maxfield == 0 then maxfield = 1 S@9w'upd
n = nsur() g[m3IJzq
f = 1 hyJ
ded&D
label 1 W\&WS"=~
hx = fldx(f)/maxfield dVPq%[J2
hy = fldy(f)/maxfield a3Z :C!|O'
raytrace hx,hy,0,0 mfu*o0
format 10.4 @>M8 Pe
print UCe ,2v%
print " X Field = ", fldx(f), s.VUd R"
print " Y Field = ", fldy(f) D LNa 6
print " X Chief = ",rayx(n), zt-'SY
print " Y Chief = ",rayy(n) rn5"o8|
xraymax = -9e9 .Ln;m8
yraymax = -9e9 O|HIO&M
xraymin = 9e9 \d `dV0X
yraymin = 9e9 jK\V|5k
xraytot = 0 17WNJ
yraytot = 0 E}]I%fi
numray = 0 ls [Ls
numrayattempt = 0 uo]Hi^r.l
px = -1 - delta 1y}, 9ym
label 2 nw~/ ~eM5=
px = px + delta QpdujtH`
py = -1 - delta t)\D
label 3 &=v/VRan[
py = py + delta B*- ToXQQr
rad = px*px + py*py H(X+.R,Thp
if rad <= 0.9999999 gV<0Hj
raytrace hx, hy, px, py f %bc64N(
numrayattempt = numrayattempt+1 H @_eFlT t
if !rayv(n) **************************** (:_%kmu
numray = numray + 1 B@ZqJw9J[
x = rayx(n) )$ ofl%+
y = rayy(n) 2q`)GCES~
if (x < xraymin) then xraymin = x =nJOaXR 0
if (x > xraymax) then xraymax = x B0-4 Z T
if (y < yraymin) then yraymin = y o,*folL
if (y > yraymax) then yraymax = y 0t5Q9#RY
xraytot = xraytot + x RnMB Gxa
yraytot = yraytot + y a/`c ef
endif 6Y;Y}E
endif 4a(g<5wfI
if py < 1.0 then goto 3 Z_iAn TT
if px < 1.0 then goto 2 /Oq1q._9F
if numray *]{9 K
format 14.8 &,W_#l{
print " X Centroid = ",xraytot/numray, "\V W. S
print " Y Centroid = ",yraytot/numray }ZEfT ]
print " X Middle = ",(xraymax+xraymin)/2, 1Pud,!\%q
print " Y Middle = ",(yraymax+yraymin)/2 LVPt*S= /
format .0 ,H.(\p_N
print " ",numray, " out of ", numrayattempt," rays made it through." Ybs=W< -
else 1VhoJGH;C
print " No rays made it through!" .yctE:n
endif E[ )7tr
f=f+1 qT4I Y$h
if f<= nfld() then goto 1 .jU|gf:x
print B(4:_ j\2
print "All field positions done!" Fpj6Atk
FORMAT 0.1 kWZ/ ej
print "Elapsed time ", ETIM(), " seconds." Nw9 -pQ
