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············· >=Pn\" j
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macro 正文：········· nD51,1>
! centroid.zpl =~f\m:Y
! BQfq]ti
! Written by Kenneth Moore 9/1/92 96 F S-`
! Added TIMER function 4/18/96 <4|/ AF*>
! [| ! A3o
TIMER o6[aP[~F
!
n W*D
! The delta controls how many rays will be traced. A J@vL,C)E6
! delta of .025 will trace a 80 x 80 grid in the pupil. -]K9sy)I
! n$oHr
delta = .025 J*} warf&
! gL:Vj %c
print "This program computes the chief ray coordinates," "$Mz>]3&q
print "centroid coordinates, and middle coordinates for" Ob#d;F
print "the primary wave spot at each field position." M)JKe!0ad1
maxfield = maxf() =
olmBXn/
if maxfield == 0 then maxfield = 1 exHg<18WSe
n = nsur() \6)]!$F6:
f = 1 Z/f%$~Ch
label 1 hmQ ;!9
hx = fldx(f)/maxfield Oe/\@f0bLT
hy = fldy(f)/maxfield @z-%:J/$
raytrace hx,hy,0,0 NM{/rvM
format 10.4 f6r~Ycf,f
print XDdF7i}
print " X Field = ", fldx(f), /eO :1c
print " Y Field = ", fldy(f) zG. \xmp
print " X Chief = ",rayx(n), bk}'wcX<+]
print " Y Chief = ",rayy(n) UTLuzm
xraymax = -9e9 -0>gq$/N=^
yraymax = -9e9 Sd |=*X
xraymin = 9e9 "h'+!2mf
yraymin = 9e9 Sbp].3^j
xraytot = 0 ~ ]_U!r[FA
yraytot = 0 H-|%\9&{S
numray = 0 W Y]
numrayattempt = 0 j
LS<S_`
px = -1 - delta 7H l>UX,|
label 2 j*' +f~ A
px = px + delta T{:~v+I=
py = -1 - delta MoX~ZewWR
label 3 e>] gC a
py = py + delta kR,ry:J-
rad = px*px + py*py ^t TASK
if rad <= 0.9999999 w$##GM=Tq
raytrace hx, hy, px, py ^P}jn`4
numrayattempt = numrayattempt+1 V*< `!w
if !rayv(n) **************************** /L yoTBG
numray = numray + 1 PptVneujI
x = rayx(n) h%%ryQQ&<
y = rayy(n) s W^e D;
if (x < xraymin) then xraymin = x <c77GimD?
if (x > xraymax) then xraymax = x [Xyu_I-c
if (y < yraymin) then yraymin = y 0 ;O e&Y
if (y > yraymax) then yraymax = y srCpgs]h
xraytot = xraytot + x YEPQ/Pc
yraytot = yraytot + y [2$mo;E?
endif #=g1V?D
endif .<Rw16 O
if py < 1.0 then goto 3 m fqnRPZ
if px < 1.0 then goto 2 T@%\?=P
if numray o"!C8s_6
format 14.8 .sCj3 sX*
print " X Centroid = ",xraytot/numray, 9] Fi2M
print " Y Centroid = ",yraytot/numray *671MJ 9
print " X Middle = ",(xraymax+xraymin)/2, 9?XQB%44
print " Y Middle = ",(yraymax+yraymin)/2 SNJSRqWL/
format .0 &.l^> #
print " ",numray, " out of ", numrayattempt," rays made it through." mPL0s
else yiw4<]{IX
print " No rays made it through!" ,r8#-~A6,A
endif D){my_
/
f=f+1 xwF mY'o
if f<= nfld() then goto 1 %b[>eIJU#
print g&*,j+$ }
print "All field positions done!" lQM&q
FORMAT 0.1 m{;j
r<
print "Elapsed time ", ETIM(), " seconds." )Yu
