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············· d tJ?J<m}
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macro 正文：········· _pL:dKfy7
! centroid.zpl T$! .
:v
! {ZB7,\
! Written by Kenneth Moore 9/1/92 bIR7g(PJ.b
! Added TIMER function 4/18/96 ca5Ir<mL
! dxsPX =\:
TIMER Dz8)u:vRS
! ~~z} yCl
! The delta controls how many rays will be traced. A uvi+# 4 ~G
! delta of .025 will trace a 80 x 80 grid in the pupil. ApR>b%
! .O@T#0&=_
delta = .025 4 1q|R[js!
! it \3-
print "This program computes the chief ray coordinates," 4'[/gMUkw
print "centroid coordinates, and middle coordinates for" 8!sl) R
print "the primary wave spot at each field position." } Dp/K4
maxfield = maxf() /d*d '3{c
if maxfield == 0 then maxfield = 1 E {*d `n
n = nsur() DJR_"8
f = 1 ^z)p@sk#
label 1 ^- Bx zOp
hx = fldx(f)/maxfield q-}q r g
hy = fldy(f)/maxfield B^nE^"b
raytrace hx,hy,0,0 d#NG]V/
format 10.4 /?Vwo SgV^
print BS!VAHO"V
print " X Field = ", fldx(f), NH~\kV
print " Y Field = ", fldy(f) muc6gwBp
print " X Chief = ",rayx(n), l$
^LY)i
print " Y Chief = ",rayy(n) 4SlEc|'7@
xraymax = -9e9 Yv >kToa\^
yraymax = -9e9 NCL!|
xraymin = 9e9 gM>geWB<
yraymin = 9e9 ~Z-o2+xA
xraytot = 0 Qh3BI?GZ'3
yraytot = 0 UU'0WIbY6
numray = 0 juIi-*R!
numrayattempt = 0 qjDt6B^RO
px = -1 - delta stQ Rl_('
label 2 %\$~B?At
px = px + delta =S#9\W& 6Q
py = -1 - delta %^Zu^uu
label 3 iC2``[m"
py = py + delta >\[/e{Q"
rad = px*px + py*py []OmztB
if rad <= 0.9999999 $Y`oqw?g+^
raytrace hx, hy, px, py gv\W I4"n
numrayattempt = numrayattempt+1 #|8Ia:=s
if !rayv(n) **************************** LT[g
+zGB
numray = numray + 1 \w#)uYK{i_
x = rayx(n) XC vL`
y = rayy(n) v9*31Jx
if (x < xraymin) then xraymin = x ?*LVn~y
if (x > xraymax) then xraymax = x lV".-:u_
if (y < yraymin) then yraymin = y =hY 9lxW
if (y > yraymax) then yraymax = y #K&XY6cTj
xraytot = xraytot + x ' 9u(9S
yraytot = yraytot + y 0#Ae<
endif \~X:ffb =
endif hU'h78bt(
if py < 1.0 then goto 3 6U9F vPJ
if px < 1.0 then goto 2 hg7^#f95u
if numray T_)G 5a
format 14.8 ghGpi U$
print " X Centroid = ",xraytot/numray, ?xW,2S
print " Y Centroid = ",yraytot/numray 9x`1VR
:
print " X Middle = ",(xraymax+xraymin)/2, k@Qd:I;;
print " Y Middle = ",(yraymax+yraymin)/2 L9{y 1'')
format .0 q?y-s
print " ",numray, " out of ", numrayattempt," rays made it through." ;"B@QPX
else swKqsN .
print " No rays made it through!" mR O@ZY;5
endif ;vG%[f`K
f=f+1 70 -nAv
if f<= nfld() then goto 1 'D'H)J
print X4eoE
print "All field positions done!" zb3,2D+ P
FORMAT 0.1 F1*xY%Jv^M
print "Elapsed time ", ETIM(), " seconds." U3u j`Oq
