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············· T%]:
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NKI&n]EO
macro 正文：········· 0`qq"j[6a
! centroid.zpl & <> A
! oNEU?+
! Written by Kenneth Moore 9/1/92 q&W#nWBV
! Added TIMER function 4/18/96 C]):+F<7
! H[G EAQO
TIMER em W#ZX
! h|-r t15
! The delta controls how many rays will be traced. A m3|,c[M1
! delta of .025 will trace a 80 x 80 grid in the pupil. rB7(&(n>^
! W&yw5rt**
delta = .025 tr'95'5W.
! RI%l& Hm
print "This program computes the chief ray coordinates," nC*/?y*9
print "centroid coordinates, and middle coordinates for" ,Y5+UzE@
print "the primary wave spot at each field position." Lh,<q
>t
maxfield = maxf()
P.fgt>v]
if maxfield == 0 then maxfield = 1 BF@VgozW
n = nsur() H R
V / A
f = 1 X F40;urm
label 1 +22[ h@
hx = fldx(f)/maxfield '"KK|] vJ
hy = fldy(f)/maxfield AV&eg e
raytrace hx,hy,0,0 jBB<{VV|
format 10.4 x* )Wl!
print ]v#T'<Nl
print " X Field = ", fldx(f), ; 6zu!
print " Y Field = ", fldy(f) 5&xvY.!27V
print " X Chief = ",rayx(n), 3)e eUO+
print " Y Chief = ",rayy(n) Wx-{F
xraymax = -9e9 \e?T 9c6,
yraymax = -9e9 zzx4;C",u
xraymin = 9e9 @ Ab<I
yraymin = 9e9 cN :;ir
xraytot = 0 REsT hB
yraytot = 0 3& zmy'b*:
numray = 0 IQ~()/;3d
numrayattempt = 0 b"Ulc}$/&
px = -1 - delta LTCj w_<7
label 2 m7@`POI
px = px + delta tDwXb>
py = -1 - delta %Wu8RG}
label 3 q)vD "{ 0.
py = py + delta m|y]j 4
rad = px*px + py*py QJTC @o
if rad <= 0.9999999 :V"}"{ (6
raytrace hx, hy, px, py +Rvj]vd}&
numrayattempt = numrayattempt+1 !Zwl9DX3
if !rayv(n) **************************** (sl~n_<ds8
numray = numray + 1 un\^Wmbw
x = rayx(n) jc?H ip'
y = rayy(n) VT9$&\)>O
if (x < xraymin) then xraymin = x bH.">IV
if (x > xraymax) then xraymax = x `=>Bo p)
if (y < yraymin) then yraymin = y p$=3&qR 6
if (y > yraymax) then yraymax = y 5N6%N1
xraytot = xraytot + x V:+}]"yJ,
yraytot = yraytot + y -O HG1"/
endif J'7Oxjlg
endif +`4|,K7'
if py < 1.0 then goto 3 R'3i { 1
if px < 1.0 then goto 2 _]4cY% s
if numray :[rx|9M6
format 14.8 &sKYO<6K }
print " X Centroid = ",xraytot/numray, Ry(!< w,
print " Y Centroid = ",yraytot/numray ~<eiWDf
print " X Middle = ",(xraymax+xraymin)/2, 1TVTP2&Rd
print " Y Middle = ",(yraymax+yraymin)/2 QO,y/@ Ph
format .0 B%t^QbU #\
print " ",numray, " out of ", numrayattempt," rays made it through." v
;9s
else RWoiV10
print " No rays made it through!" g5"g,SFGr
endif B;@yOm=
f=f+1 V*AG0@& !
if f<= nfld() then goto 1 '"TBhisky
print {L+?n*;CA
print "All field positions done!" s)N1@RBR
FORMAT 0.1 OO$<Wgh
print "Elapsed time ", ETIM(), " seconds." ^NCH)zK]v
