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············· EF3Cdu{]P
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macro 正文：········· `W/sP \3
! centroid.zpl otggN:^Qw
! Z R/#V7Pj
! Written by Kenneth Moore 9/1/92 4jD2FFG-
G
! Added TIMER function 4/18/96 ^&y$Wd]6
! jck}" N
TIMER Y"A/^]
! .{y
uo{u
! The delta controls how many rays will be traced. A pPd#N'\ *
! delta of .025 will trace a 80 x 80 grid in the pupil. 5j~ $Mj`
! _6 ay-u
delta = .025 a!O0,y
! @E:,lA
print "This program computes the chief ray coordinates," xhcK~ 5C
print "centroid coordinates, and middle coordinates for" p<M\U"5Ye
print "the primary wave spot at each field position." 0RoU}r@z4
maxfield = maxf() giz7{Ai
if maxfield == 0 then maxfield = 1 EkziAON
n = nsur() U8
nH;}i
f = 1 [jm d
label 1 q$=#A7H>3)
hx = fldx(f)/maxfield W.kM7z>G
hy = fldy(f)/maxfield -[-wkC8a
raytrace hx,hy,0,0 eq U ME
format 10.4 O{ #=d
print g) -bW+]q
print " X Field = ", fldx(f), qvPtyc^fN
print " Y Field = ", fldy(f) ~6 p[El#tS
print " X Chief = ",rayx(n), jy'13G/b\
print " Y Chief = ",rayy(n) R?]02Q
xraymax = -9e9 ynbuN x*
yraymax = -9e9 /~3r; M
xraymin = 9e9 6i}iAP|0
yraymin = 9e9 F i0GknQ+
xraytot = 0 6'Fd GS
yraytot = 0 E~6c -Lw
numray = 0 . 0es 3Rj
numrayattempt = 0 "s{5O>
px = -1 - delta 6fw(T.Pe
label 2 0\e IQp
px = px + delta lv04g} W
py = -1 - delta j:VbrR
label 3 13>0OKg`#
py = py + delta 5 k.oW=
rad = px*px + py*py jbAx;Xt'=M
if rad <= 0.9999999 .X;3,D[w
raytrace hx, hy, px, py 4T ~ }
numrayattempt = numrayattempt+1 4M2j! Sw
if !rayv(n) **************************** -PfX0y9n
numray = numray + 1 a24"yT
x = rayx(n) .4E&/w+
y = rayy(n) t;}:waZD
if (x < xraymin) then xraymin = x }|pwz
if (x > xraymax) then xraymax = x cH&J{WeZa
if (y < yraymin) then yraymin = y U[ 0=L`0e
if (y > yraymax) then yraymax = y z*!%g[3I
xraytot = xraytot + x r8xv #r 1
yraytot = yraytot + y Eq j_m|@
endif j-lfMEa$o
endif ye,> A.
if py < 1.0 then goto 3 N'GeHByIT
if px < 1.0 then goto 2 }n>p4W" OM
if numray >7QvK3S4%
format 14.8 c_4[e5z
print " X Centroid = ",xraytot/numray, uo@n(>}EL
print " Y Centroid = ",yraytot/numray 7Mg=b%IYs
print " X Middle = ",(xraymax+xraymin)/2, N$U$5;r~`
print " Y Middle = ",(yraymax+yraymin)/2 )% ~OH
format .0 : qd`zG3
print " ",numray, " out of ", numrayattempt," rays made it through." bAx-"Lu
else oY933i@l)P
print " No rays made it through!" _I:/ZF5
endif zN^n] N_?
f=f+1 d^{RQ
if f<= nfld() then goto 1 !:q/Ye3.
print X\bOz [\
print "All field positions done!" gaZu;t2u
FORMAT 0.1 ,[P{HrH x
print "Elapsed time ", ETIM(), " seconds."
zem8G2#c
