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············· 8=nm`7(]
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macro 正文：········· ^d=Z/d[
! centroid.zpl S'@"a%EV
! 0N
T3
! Written by Kenneth Moore 9/1/92 r*p%e\ 3
! Added TIMER function 4/18/96 2! 6Kz q
! " c
TIMER fGe{7p6XV*
! +?@qu x!
! The delta controls how many rays will be traced. A wUV%N ZB
! delta of .025 will trace a 80 x 80 grid in the pupil. lmc-ofEv
! 3o^V$N.
delta = .025 qJ!oH&/cD
! {(MG:
B
print "This program computes the chief ray coordinates,"
Y-{spTI
print "centroid coordinates, and middle coordinates for" blPC"3}3Vd
print "the primary wave spot at each field position." {
o;0Fx
maxfield = maxf() a0LX<}
if maxfield == 0 then maxfield = 1 O~Fk0}-
n = nsur() 3}gK`1Nq1
f = 1 k m|wB4
label 1 `fV$'u
hx = fldx(f)/maxfield 6?iP z?5
hy = fldy(f)/maxfield .z4FuG,R
raytrace hx,hy,0,0 *oWz H _
format 10.4 Ce)Wvuh
print ixH7oWH#
print " X Field = ", fldx(f), nag to^5X
print " Y Field = ", fldy(f) p}!pT/KmpH
print " X Chief = ",rayx(n), ?-Z:N`YP
print " Y Chief = ",rayy(n) H WU{521
xraymax = -9e9 DtS{iH=s]
yraymax = -9e9 n c{ < v
xraymin = 9e9 `&6]P :_qp
yraymin = 9e9 _
o(h]G1].
xraytot = 0 ]a%Kn]HI&2
yraytot = 0 ;lEiOF+d
numray = 0 18HHEW{
numrayattempt = 0 & tOD
px = -1 - delta bDNd
m-
label 2 0cbF.Um8
px = px + delta v J'
93 h
py = -1 - delta NEH$&%OV?
label 3 xd. C&Dx5
py = py + delta .KSGma6]
rad = px*px + py*py < KA@A}
if rad <= 0.9999999 s#fmGe"8
raytrace hx, hy, px, py TDGzXJf[
numrayattempt = numrayattempt+1 ?yb{DZ46
if !rayv(n) **************************** :F\f}G3
numray = numray + 1 OR9){qP
x = rayx(n) F"C Yrt
y = rayy(n) w6 Q]?p+
if (x < xraymin) then xraymin = x a+i+#*8wm
if (x > xraymax) then xraymax = x iy"K g]
if (y < yraymin) then yraymin = y e- CW4x
if (y > yraymax) then yraymax = y eH8.O
xraytot = xraytot + x 1hWz%c|
yraytot = yraytot + y IA4(^ -9
endif (jG$M= q-
endif F)w83[5_d
if py < 1.0 then goto 3 hH/ O 2
if px < 1.0 then goto 2 hdL2`5RFF
if numray )]R?v,9*D
format 14.8 YLo$n
print " X Centroid = ",xraytot/numray, }b (e
print " Y Centroid = ",yraytot/numray #w@Pa L iS
print " X Middle = ",(xraymax+xraymin)/2, J;`~
!g
print " Y Middle = ",(yraymax+yraymin)/2 (I.`bR
format .0 xW4+)F5P(
print " ",numray, " out of ", numrayattempt," rays made it through." > xKRU 5
else Y c k bc6F
print " No rays made it through!" ~=ktFuEa
endif U;@jl?jnG
f=f+1 "-?Y UY`
if f<= nfld() then goto 1 *% *^a\2
print /f<(K-o]
print "All field positions done!" WRyLpTr-
FORMAT 0.1 B v c=gW
print "Elapsed time ", ETIM(), " seconds." EYG E#C;
d
