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············· r [ K5w
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macro 正文：········· t]X w{)T
! centroid.zpl K(q-?n`<
! )aX,% yK
! Written by Kenneth Moore 9/1/92 FN[{s
! Added TIMER function 4/18/96 1IVuSp`{FU
! |<O9Sb_
TIMER 2YDM9`5xs\
! a5w:u5
! The delta controls how many rays will be traced. A )Y)pmjZaG
! delta of .025 will trace a 80 x 80 grid in the pupil. tr7<] Hm:
! $HJwb-I
delta = .025 : "1XPr
! IUwm}9Q!
print "This program computes the chief ray coordinates," 85GKymz$P
print "centroid coordinates, and middle coordinates for" 4Fm90O
print "the primary wave spot at each field position." H9CS*|q6r
maxfield = maxf() Z>
r^SWL
if maxfield == 0 then maxfield = 1 %RDI!e<e}
n = nsur() Q~T $N
f = 1 H#ncM~y*
label 1 :kGU,>BN
hx = fldx(f)/maxfield Q f@
hy = fldy(f)/maxfield __.+s32SS$
raytrace hx,hy,0,0 ) Yd?m0m*
format 10.4 F8apH{&t
print &-;5*
lg)0
print " X Field = ", fldx(f), 9:M`
j
print " Y Field = ", fldy(f) 4R\ H pt
print " X Chief = ",rayx(n), ^`G}gWBx}w
print " Y Chief = ",rayy(n) rdJR 2
xraymax = -9e9 YIjTL!bA"
yraymax = -9e9 #f+$Ddg*
xraymin = 9e9 6 :~v4W!k
yraymin = 9e9 6R^^ .tCs
xraytot = 0 C 9t4#"
yraytot = 0 4]E3c AJ
numray = 0 cb}[S:&|
numrayattempt = 0 _F`lq_C
px = -1 - delta /3{b%0Aa
label 2 D
gaMO,
px = px + delta S m5H_m!
py = -1 - delta q|),`.eh\
label 3 )+6MK(<"
py = py + delta {E8~ Z8tT
rad = px*px + py*py E@b(1@
if rad <= 0.9999999 L+q/){Dd(
raytrace hx, hy, px, py :eCU/BC4
numrayattempt = numrayattempt+1 cMOyo<F#^=
if !rayv(n) **************************** sQ\8>[]
numray = numray + 1 9B9(8PVG
x = rayx(n) j}C}:\-fY
y = rayy(n) p } ~qf
if (x < xraymin) then xraymin = x -j iG7OL
if (x > xraymax) then xraymax = x \*<d{gZ~
if (y < yraymin) then yraymin = y U-3 i
if (y > yraymax) then yraymax = y f=9|b
xraytot = xraytot + x SBS3?hw
yraytot = yraytot + y \7'+h5a
endif aYSCw 3C<
endif Dbz3;t
if py < 1.0 then goto 3 S@/I QR
if px < 1.0 then goto 2 tw9f%p
if numray @
rc{SB
format 14.8 HK Un`ng
print " X Centroid = ",xraytot/numray, k1D@fiz
print " Y Centroid = ",yraytot/numray &*aIEa^
print " X Middle = ",(xraymax+xraymin)/2, EU+S^SyZi
print " Y Middle = ",(yraymax+yraymin)/2 LBZ+GB
format .0 av|g}xnj
print " ",numray, " out of ", numrayattempt," rays made it through." &e X!#nQ_.
else s|y "WDyx5
print " No rays made it through!" |0f>aZ
endif 7](KV" %V
f=f+1 u@cYw:-C
if f<= nfld() then goto 1 Z '7
print <d$x .in
print "All field positions done!" XMu9 Uk{|
FORMAT 0.1 SR |`!
print "Elapsed time ", ETIM(), " seconds." Vo'T !e- B
