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············· kbb!2`F!%
b>p_w%d[[J
macro 正文：········· kl:/ PM ^
! centroid.zpl G 0pq'7B
! ]dGH
i \
! Written by Kenneth Moore 9/1/92 [ ?7QmZK
! Added TIMER function 4/18/96 |MGT8C&^!
! uQdH () :
TIMER QEqYqAGzu|
! ?P[:,0_
! The delta controls how many rays will be traced. A Yf9E0po
! delta of .025 will trace a 80 x 80 grid in the pupil. Wo&22,EB
! h?dSn:Y\?
delta = .025 MV$E_@pg
! ]>)shH=Yx
print "This program computes the chief ray coordinates," ^V; r
print "centroid coordinates, and middle coordinates for" o`Z3}
print "the primary wave spot at each field position." `uPO+2
maxfield = maxf() I-!7 EC2{!
if maxfield == 0 then maxfield = 1 >4wigc
n = nsur() 9J7yR}2-F
f = 1 IIY_Q9in
label 1 TW& s c9
hx = fldx(f)/maxfield i 5l e0lM
hy = fldy(f)/maxfield \m)s"Sh.
raytrace hx,hy,0,0 `? =3[
format 10.4 ;/+< N
print =:g\I6'a
print " X Field = ", fldx(f), hJ8&OCR }
print " Y Field = ", fldy(f) LI}e_= E
print " X Chief = ",rayx(n), no-";{c
print " Y Chief = ",rayy(n) c$[2tZ
xraymax = -9e9 >b\|%=(x!*
yraymax = -9e9 E7h@Y~bNhW
xraymin = 9e9 c}OveR$'&
yraymin = 9e9 ,?m@ Ko7Y
xraytot = 0 \,NT5 >
yraytot = 0 e:-pqZT`
numray = 0 Y~*p27 @fR
numrayattempt = 0 yx?oxD Jg
px = -1 - delta M/W9"N[ta
label 2 ?84f\<"
px = px + delta +?6]Vu&|f
py = -1 - delta -ABj>y[
label 3 HkRvcX
5
py = py + delta qdk!.A{
rad = px*px + py*py 2d|^$$#`
if rad <= 0.9999999 FDuA5At
raytrace hx, hy, px, py 4IZAJqw(*
numrayattempt = numrayattempt+1 h/C {
if !rayv(n) **************************** Yf[C mn
numray = numray + 1 A
,0}bFK
x = rayx(n) th*!EFA^o
y = rayy(n) >,zU=I?9Y
if (x < xraymin) then xraymin = x ZJbaioc\
if (x > xraymax) then xraymax = x 5D/Td#T04
if (y < yraymin) then yraymin = y 4V[(RXc/
if (y > yraymax) then yraymax = y dAG@'A\f
xraytot = xraytot + x a++gwl
yraytot = yraytot + y n>JJ Xw,,
endif %Jl6e}!
endif 4Kj 8 i
if py < 1.0 then goto 3 B7C<;`5TiD
if px < 1.0 then goto 2 @+~URIG)
if numray H{E(=S
format 14.8 ^0_ >
print " X Centroid = ",xraytot/numray, !4^Lv{1QZ
print " Y Centroid = ",yraytot/numray =1>G *
,
print " X Middle = ",(xraymax+xraymin)/2, R+0fs$s u
print " Y Middle = ",(yraymax+yraymin)/2 8}[<3K%*g
format .0 Da! fwth
print " ",numray, " out of ", numrayattempt," rays made it through." ^K[xVB(&
else FDi DHOR
print " No rays made it through!" se3EI1e
endif ,e OZv=:
f=f+1 4avkyFj!h
if f<= nfld() then goto 1 lgt&kdc%o
print .I{u[
"
print "All field positions done!" L1` ^M
FORMAT 0.1 DZESvIES
print "Elapsed time ", ETIM(), " seconds." JUGq\b&m
