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············· [Tq\K ^!^
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macro 正文：········· o3oAk10
! centroid.zpl t'F_1P^*/
! -1>$3-ur~
! Written by Kenneth Moore 9/1/92 F|seBBu
! Added TIMER function 4/18/96 5%5z@Ka
! ; {P"~(S%
TIMER 2' 8$I}h
! "Y7
]t:8
! The delta controls how many rays will be traced. A wv ~?<DF
! delta of .025 will trace a 80 x 80 grid in the pupil. ^z^ UFW
! ]DaC??%w
delta = .025 tl uyx
! s=uWBh3J
print "This program computes the chief ray coordinates," xlH?J;$
print "centroid coordinates, and middle coordinates for" I'NE>!=Q
print "the primary wave spot at each field position."
_%`<V!RT\
maxfield = maxf() -5Km 9X8
if maxfield == 0 then maxfield = 1 +-|D$@8S
n = nsur() oiS>:de%tc
f = 1 !/},k "p 6
label 1 EK:s#
hx = fldx(f)/maxfield qU1^ K
hy = fldy(f)/maxfield k$hNibpkt
raytrace hx,hy,0,0 $ 2M dxw5
format 10.4 y.LJ 5K$&a
print ,3zF_y(*Y
print " X Field = ", fldx(f), }#rdMh
print " Y Field = ", fldy(f) l9 |x7GB
print " X Chief = ",rayx(n), $|2@of.
print " Y Chief = ",rayy(n) V`n;W6Q17
xraymax = -9e9 y8{PAH8S
yraymax = -9e9 dX58nJ4u
xraymin = 9e9 ?QnVWu2K
yraymin = 9e9 X2MQa:yksP
xraytot = 0 gyI(O>e
yraytot = 0 _uR-Z_z
numray = 0 'Gw;@[
numrayattempt = 0 BE;J/
px = -1 - delta 4+V+SD
label 2 S!< 1C Fh
px = px + delta >}43xIRRCq
py = -1 - delta 4[ S0~O{r
label 3 &tULSp@J
py = py + delta f4s^$Q{Q
rad = px*px + py*py ;Ly(O'9
if rad <= 0.9999999 "\'g2|A
raytrace hx, hy, px, py CZ/bO#~
numrayattempt = numrayattempt+1 e%v<nGN.-
if !rayv(n) **************************** btfjmR<Tp
numray = numray + 1 JYbE(&l%de
x = rayx(n) k+"+s
bsW'
y = rayy(n) Q e!Q
$
if (x < xraymin) then xraymin = x "rj qDpH
if (x > xraymax) then xraymax = x &?@gUk74"
if (y < yraymin) then yraymin = y q>~\w1%}a\
if (y > yraymax) then yraymax = y *|f&a
xraytot = xraytot + x $> 3/6(bW
yraytot = yraytot + y idC4yH42
endif fw ojFS .K
endif 1GnT^u y/
if py < 1.0 then goto 3 N
F[v/S
if px < 1.0 then goto 2 w>IYrSaa>
if numray brkR,(#L3
format 14.8 LiyEF&_u
print " X Centroid = ",xraytot/numray, uhuwQS= X
print " Y Centroid = ",yraytot/numray 3&D;V;ON}_
print " X Middle = ",(xraymax+xraymin)/2, F Ty`#*7Ul
print " Y Middle = ",(yraymax+yraymin)/2 Y2
&N#~l*
format .0 9 59i2z
print " ",numray, " out of ", numrayattempt," rays made it through." NX$S^Z\QI
else N#;k;Z'iL
print " No rays made it through!" y&0&K 4aa
endif o |7]8K=
f=f+1 | 5wuYG
if f<= nfld() then goto 1 cJ
G><'
print D!.
r$i)
print "All field positions done!" 41<.e` {
FORMAT 0.1 e!wS"[,
print "Elapsed time ", ETIM(), " seconds." .wrNRU7s
