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············· <lTLz$QE
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macro 正文：········· ?,w9e|
! centroid.zpl T\w{&3ONm
! QC6 :ZxP
! Written by Kenneth Moore 9/1/92 K)W:@,*
! Added TIMER function 4/18/96 P (aN6)D
! *K;s*-|U
TIMER `X%Qt ~
! 2 2@w:
! The delta controls how many rays will be traced. A s'/ZtH6>C
! delta of .025 will trace a 80 x 80 grid in the pupil. +%R{j|8#
! 9QHV%%
delta = .025 s9,Z}]Th
! {
t@7r
print "This program computes the chief ray coordinates," B7( bNr
print "centroid coordinates, and middle coordinates for" -{E S 36
print "the primary wave spot at each field position." 65l9dM2
maxfield = maxf() S,f:nLT
if maxfield == 0 then maxfield = 1 !md1~g$rN
n = nsur() `]F#j ]"
f = 1 EbnV "]1
label 1 ),XDY_9K
hx = fldx(f)/maxfield v)JS4KS
hy = fldy(f)/maxfield ,:8 oVq>?
raytrace hx,hy,0,0 ;]>a7o
format 10.4 oZ> 2Tt%
print B/I1<%Yk
print " X Field = ", fldx(f), _ ( $U\FW
print " Y Field = ", fldy(f) ` 5S Q4
print " X Chief = ",rayx(n), \G 2PK&)F
print " Y Chief = ",rayy(n) lX64IvG8+o
xraymax = -9e9 |!L0X@>
yraymax = -9e9 =-]NAj\
xraymin = 9e9 }p KKNZ `[
yraymin = 9e9 jD ?*sd
xraytot = 0 S3^(L
yraytot = 0 *iJ>@ vew
numray = 0 >[S\NAE>
numrayattempt = 0 :@~mN7O*
px = -1 - delta 7* >,BhF#
label 2 \: R Akf<
px = px + delta #9t3 <H[
py = -1 - delta GYtp%<<9;
label 3 B z?
(?fyd
py = py + delta U% OlYP$g
rad = px*px + py*py {Rq5=/b
if rad <= 0.9999999 cToT_ Mk
raytrace hx, hy, px, py e1 7]{6y
numrayattempt = numrayattempt+1 /L=Y8tDt
if !rayv(n) **************************** L,sFwOWY
numray = numray + 1 ;N!opg))d<
x = rayx(n) \hP.Q;"MtO
y = rayy(n) ,Bl_6ZaL
if (x < xraymin) then xraymin = x yC7lR#N8j0
if (x > xraymax) then xraymax = x I "HEXsSe
if (y < yraymin) then yraymin = y (};/,t1#$
if (y > yraymax) then yraymax = y +|qw >1J(
xraytot = xraytot + x 6t3Zi:=I
yraytot = yraytot + y Jhv T+"~
endif }$#PIyz
endif \"b'Z 2 g
if py < 1.0 then goto 3 %v[KLMo'(
if px < 1.0 then goto 2 ] -%B4lT
if numray 6Oy6r
format 14.8 36}&{A
print " X Centroid = ",xraytot/numray, 's$/-AV
print " Y Centroid = ",yraytot/numray Y?:" nhN
print " X Middle = ",(xraymax+xraymin)/2, T>w;M?`9K
print " Y Middle = ",(yraymax+yraymin)/2 d'[q2y?6N
format .0 lS?#(}a1)
print " ",numray, " out of ", numrayattempt," rays made it through." P?Kg7m W
else E+J +fi
print " No rays made it through!" ]>[ 0DX]j
endif 7#C3E$gn?
f=f+1 >^D5D%"
if f<= nfld() then goto 1 ,3Nna:~f
print y< P Q$D)
print "All field positions done!" G4uA&"OE
FORMAT 0.1 IGo+O*dMw
print "Elapsed time ", ETIM(), " seconds." wI?AZd;`'
