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············· I*&8^ r:A
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macro 正文：········· C+]I@Go'Tk
! centroid.zpl /{[o ~:'p
! 5\ v3;;A[
! Written by Kenneth Moore 9/1/92 .6> w'F{>
! Added TIMER function 4/18/96 j+!v}*I![
! Zc yc*{DS
TIMER L-Lvp%%
! pw#-_
! The delta controls how many rays will be traced. A 43w }qY1
! delta of .025 will trace a 80 x 80 grid in the pupil. ,I9bNO,%JK
! 9$Y=orpWxr
delta = .025 9!GM{
! b LL2
print "This program computes the chief ray coordinates," us.~ G
print "centroid coordinates, and middle coordinates for" Qn Dg 6m)+
print "the primary wave spot at each field position." u ? " Vm
maxfield = maxf() YQ} o?Q$z
if maxfield == 0 then maxfield = 1 _M1 %Z~
n = nsur() -/4P3SG/
f = 1
jo7\`#(Q
label 1 o4;(Zi#Z
hx = fldx(f)/maxfield ~~.}ah/_d
hy = fldy(f)/maxfield b$7 + ;I;
raytrace hx,hy,0,0 {vj)76%y
format 10.4 YR70BOxK
print [ )F<V!
print " X Field = ", fldx(f), @CoIaUVP
print " Y Field = ", fldy(f) y }
'@R$
print " X Chief = ",rayx(n), TvM~y \s
print " Y Chief = ",rayy(n) WA qINLdX
xraymax = -9e9 K:M8h{Ua
yraymax = -9e9 +t.b` U`-
xraymin = 9e9 yauvXosX
yraymin = 9e9 ]|@^1we
xraytot = 0 /QQ*8o8
yraytot = 0 ^
9sjj
numray = 0 jdN` mosJ
numrayattempt = 0 TpaInXR
px = -1 - delta K"6vXv4QO
label 2 ,6/V" kqIP
px = px + delta #4:?gfIj
py = -1 - delta `^vE9 nW 7
label 3 hP h-+Hb
py = py + delta im8 CmQ
rad = px*px + py*py VTM/h JmwJ
if rad <= 0.9999999 gUlo]!$
raytrace hx, hy, px, py '"^'M Xa
numrayattempt = numrayattempt+1 bcyzhK=
if !rayv(n) **************************** y-k.U%
numray = numray + 1 VVZ'i.*_3?
x = rayx(n) GyIV
Hby
y = rayy(n) @~e5<:|5#
if (x < xraymin) then xraymin = x ~[ jQ!tz
if (x > xraymax) then xraymax = x 6863xOv{T
if (y < yraymin) then yraymin = y mw!F{pw
if (y > yraymax) then yraymax = y 7pd$\$
xraytot = xraytot + x _$'ashF
yraytot = yraytot + y Z;i:](
endif ]]mJ']l
endif H|*m$| $,
if py < 1.0 then goto 3 4 5e~6",
if px < 1.0 then goto 2 b
6p|q_e
if numray bOB \--:]
format 14.8 Y*^[P,+J*}
print " X Centroid = ",xraytot/numray, yevPHN"M
print " Y Centroid = ",yraytot/numray Wz h`or
print " X Middle = ",(xraymax+xraymin)/2, j.Hf/vi`z
print " Y Middle = ",(yraymax+yraymin)/2 hM{bavd
format .0 w(/S? d
print " ",numray, " out of ", numrayattempt," rays made it through." p ?!/ +
else =(Mch ~
print " No rays made it through!" 3Ul*QN{6
endif = &]L00u.
f=f+1 BLttb
if f<= nfld() then goto 1 ]'}L 1r
print 8Wx=p#_
print "All field positions done!" .]u /O`c]
FORMAT 0.1 pb}*\/ s
print "Elapsed time ", ETIM(), " seconds." DF= *_,2/
