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············· :6M0`V ;L
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macro 正文：········· ?<LG(WY
! centroid.zpl 'FUPv61()
! #i ]@"R
! Written by Kenneth Moore 9/1/92 q3P3euK3
! Added TIMER function 4/18/96 7R2)Klt
! g*tLqV
TIMER <zDe ;&
! ~!nd'{{9
! The delta controls how many rays will be traced. A B 6pz1P?e}
! delta of .025 will trace a 80 x 80 grid in the pupil. bA^a@ lv a
! m5x>._7le
delta = .025 *nC,= 2
! X%F9 .<4
print "This program computes the chief ray coordinates," ;_SS3q
print "centroid coordinates, and middle coordinates for" &S-& 'ZAY
print "the primary wave spot at each field position." q}1$ OsM
maxfield = maxf() UQdQtj1'
if maxfield == 0 then maxfield = 1 s,29_z7
n = nsur() QJE- $ :
f = 1 <V8i>LBlz
label 1 GB+d0 S4
hx = fldx(f)/maxfield y-X'eCUz
hy = fldy(f)/maxfield 'q^Gg;c >+
raytrace hx,hy,0,0 Z n} )&Xt
format 10.4 :hr@>Y~r
print m{5$4v,[
print " X Field = ", fldx(f), <&Uk!1Jd
print " Y Field = ", fldy(f) % b&BLXW
print " X Chief = ",rayx(n), s*X\%!l9
print " Y Chief = ",rayy(n) [ O )Z of
xraymax = -9e9 *Fc&DQT(
yraymax = -9e9 ppD ~xg]
xraymin = 9e9 mT>p:G
yraymin = 9e9 y,>m#6hx#
xraytot = 0 =iQm_g
yraytot = 0 %Uk/P
numray = 0 6K y;1$
numrayattempt = 0 yy74>K
px = -1 - delta -U $pW( ~
label 2 @~XlI1g$i
px = px + delta '9dtIW6E
py = -1 - delta W9Lg}[>:)
label 3 oQXkMKZ
py = py + delta S3w?Zk3hO
rad = px*px + py*py htRZ}e
if rad <= 0.9999999 ;$E[u)l
raytrace hx, hy, px, py Ju[`Qw`I
numrayattempt = numrayattempt+1 #G=QL(f>/
if !rayv(n) **************************** r Qm
numray = numray + 1 @(?4g -* E
x = rayx(n) I}v#r8'!
y = rayy(n) !dH&IEP~
if (x < xraymin) then xraymin = x X&~Eo
if (x > xraymax) then xraymax = x PPO<{
if (y < yraymin) then yraymin = y >[ : 2
if (y > yraymax) then yraymax = y uPXqTkod
xraytot = xraytot + x ?KXQ)Y/su
yraytot = yraytot + y $?-o
endif Lx{N%;t*E
endif wIj2 IAD
if py < 1.0 then goto 3 EM/+1
_u
if px < 1.0 then goto 2 E |;5Z*
if numray ^ks^9*'|j
format 14.8 z=_{jjs
print " X Centroid = ",xraytot/numray, Hc%\9{zH
print " Y Centroid = ",yraytot/numray vxT "BvN
print " X Middle = ",(xraymax+xraymin)/2, -\$cGIL
print " Y Middle = ",(yraymax+yraymin)/2 Nt-SCLDM
format .0 vaOL6=[#:g
print " ",numray, " out of ", numrayattempt," rays made it through." ;Hb[gvl
else hb8XBBKR
print " No rays made it through!" 15 11<,
endif 7 aD&\?
f=f+1 mZVOf~9E
if f<= nfld() then goto 1 *9ub.:EUwV
print |I5?5 J\
print "All field positions done!" m
Ap|?n/K
FORMAT 0.1 .l5 " X>
print "Elapsed time ", ETIM(), " seconds." ~+ wa mX3
