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············· BM+>.
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macro 正文：········· \5q0nB@i5y
! centroid.zpl ebTwU]Nb
! +)0 6*"I
! Written by Kenneth Moore 9/1/92 _]"uq/UWp
! Added TIMER function 4/18/96 EjjW%"C,
! }n;. E&<[
TIMER }
>z l
! J*zm*~8\
! The delta controls how many rays will be traced. A ZBxV& .9/
! delta of .025 will trace a 80 x 80 grid in the pupil. : 3 p&h[M
! #P/}'rdt
delta = .025 FS^ie|8{D-
! y E=tuHv(0
print "This program computes the chief ray coordinates," *T:gx:Sg/
print "centroid coordinates, and middle coordinates for" FXO{i:Zo
print "the primary wave spot at each field position." - D^.I
maxfield = maxf() .J fV4!=o
if maxfield == 0 then maxfield = 1 NxzRVsNF
n = nsur() G W~ ZmK
f = 1 y h{Wuz=T
label 1 %5-
hx = fldx(f)/maxfield &br_opNi
hy = fldy(f)/maxfield $?Z-BD 1
raytrace hx,hy,0,0 F 2W Mts
format 10.4 ,mm9X\ '
print =! P
print " X Field = ", fldx(f), oaMh5 FPy
print " Y Field = ", fldy(f) P%_PG%O2p
print " X Chief = ",rayx(n), Zze a
print " Y Chief = ",rayy(n) {q^?Rw
xraymax = -9e9 8Ssk>M*
yraymax = -9e9 e(~Y! :Q#O
xraymin = 9e9 6fcn (&Qk
yraymin = 9e9 QoTjKck.
xraytot = 0 [X=J]e^D
yraytot = 0 BzyzOtBp3L
numray = 0 n=tg{_9f%
numrayattempt = 0 t] PO4GA
px = -1 - delta 9<Kc 9Z
label 2 {xS\CC(g
px = px + delta 69K*]s
py = -1 - delta s\# eD0|
label 3 dX>l"))yR
py = py + delta F G 5e{
rad = px*px + py*py Bvy(vc=UDW
if rad <= 0.9999999 ^d[ s*,i?
raytrace hx, hy, px, py ^7O,Vk"Z
numrayattempt = numrayattempt+1 km+}./@
if !rayv(n) **************************** JJe?Zu\
numray = numray + 1 2 -
?
x = rayx(n)
DU.nXwl]
y = rayy(n) {2,OK=XM|
if (x < xraymin) then xraymin = x 9azk(OL6
if (x > xraymax) then xraymax = x %`Q<_LTU
if (y < yraymin) then yraymin = y MX.=k>
if (y > yraymax) then yraymax = y USrg,A
xraytot = xraytot + x qp@:Zqz8
yraytot = yraytot + y pdQ6/vh
endif &%/kPF~<
endif D{!N Tr
if py < 1.0 then goto 3 ou[_ y
if px < 1.0 then goto 2 8>sToNRNe
if numray l'2a?1/q
format 14.8 =Qcz :ng
print " X Centroid = ",xraytot/numray, . CL\``
print " Y Centroid = ",yraytot/numray oKJj?%dHK9
print " X Middle = ",(xraymax+xraymin)/2, ~ X/1%
print " Y Middle = ",(yraymax+yraymin)/2 \HzI*|*A
format .0 b ]NSCu*)s
print " ",numray, " out of ", numrayattempt," rays made it through." wM;9plYlw0
else L##lXUl
print " No rays made it through!" &.Jp ,Xt)
endif x"Hi!h )v
f=f+1 yB7=8 Pcx
if f<= nfld() then goto 1 5Z 7 <X2
print -
T,;Fr'
print "All field positions done!" 8gv \`
FORMAT 0.1 L>Y>b4oy3
print "Elapsed time ", ETIM(), " seconds." `o 6Hm
