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············· `+J Fvn!
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macro 正文：········· #Ondhy%h[
! centroid.zpl z`y9<+
! CUA @CZ6{
! Written by Kenneth Moore 9/1/92 kmuksT\)a
! Added TIMER function 4/18/96 dj|5' <l2
! fn#8=TIDf
TIMER B{-7
! 'm%{Rz>j
! The delta controls how many rays will be traced. A 73WSW/^F
! delta of .025 will trace a 80 x 80 grid in the pupil. I-7LT?r
! xS18t="
delta = .025 /Y Kd [RQ
! 8OfQ :
print "This program computes the chief ray coordinates," e5h *GKF
print "centroid coordinates, and middle coordinates for" #c!:&9oU
print "the primary wave spot at each field position." *p l6 V|
maxfield = maxf() #%"q0"
if maxfield == 0 then maxfield = 1 aM^iDJ$>
n = nsur() 3JoY-
f = 1 & {iC:zp
label 1 \?:L>-&h8
hx = fldx(f)/maxfield w7 nt $L5
hy = fldy(f)/maxfield sE9FT#iE
raytrace hx,hy,0,0 d{
(,Gy>I
format 10.4 :d mE/Tq
print C3AWXO ^
print " X Field = ", fldx(f), QWmE:F[M~
print " Y Field = ", fldy(f) T}~TW26v
print " X Chief = ",rayx(n), H/8^ Fvd
print " Y Chief = ",rayy(n) ^ -;S&=
xraymax = -9e9 \}-4(Xdaq
yraymax = -9e9 I8*VM3
xraymin = 9e9 wI#8|,]"z
yraymin = 9e9
D+8d^-:
xraytot = 0 ]{-.?W*$
yraytot = 0 4Nm >5*]
numray = 0 ?0b-fL^^+l
numrayattempt = 0 P{L=u74b{x
px = -1 - delta fV:15!S[
label 2 -luQbGcT3
px = px + delta "SF0b jG9C
py = -1 - delta 5'lVh/
label 3 S"Al [{
py = py + delta iT@` dEZ .
rad = px*px + py*py CjdM*#9lW
if rad <= 0.9999999 tMr7 d
raytrace hx, hy, px, py npP C;KD
numrayattempt = numrayattempt+1 ];r!
M0
if !rayv(n) **************************** K2 m>D=w
numray = numray + 1 &\zYbGU
x = rayx(n) {%jAp11y+O
y = rayy(n) Z[vx0[av&
if (x < xraymin) then xraymin = x M,Gy.ivz
if (x > xraymax) then xraymax = x gv!8' DKn
if (y < yraymin) then yraymin = y !}*N';
if (y > yraymax) then yraymax = y 6fwNlC/9
xraytot = xraytot + x 5zuwqOD*
yraytot = yraytot + y 2Gyq40
endif NW|B|kc
endif u ExLj6
if py < 1.0 then goto 3 v|?@k^Ms
if px < 1.0 then goto 2 1- RY5R}VR
if numray j*=!M# D
format 14.8 dQX-s=XJ
print " X Centroid = ",xraytot/numray, ^[ae
)}
print " Y Centroid = ",yraytot/numray ktu?-?#0,
print " X Middle = ",(xraymax+xraymin)/2, u#05`i:Z
print " Y Middle = ",(yraymax+yraymin)/2 z%&FLdXgW+
format .0 ~$!,-r
print " ",numray, " out of ", numrayattempt," rays made it through." [V}vd@*k
else T/$ gnn
print " No rays made it through!" 0 9H rn
endif =g% L$b<i
f=f+1 / "m s
if f<= nfld() then goto 1 ]l7W5$26 @
print +]l?JKV
print "All field positions done!" YOxgpQ:i
FORMAT 0.1 q|5WHB
print "Elapsed time ", ETIM(), " seconds." VO#rJ1J
