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············· ]S2[e S
rPGE-d 3
macro 正文：········· L z>{FOR
! centroid.zpl - 2na::<K
! NF\^'W@ N
! Written by Kenneth Moore 9/1/92 H"RF[bX(
! Added TIMER function 4/18/96 x EZVsz
! b;;Kxi:7$}
TIMER k -DB~-L
! {6y .%ysU
! The delta controls how many rays will be traced. A yJ`1},^
! delta of .025 will trace a 80 x 80 grid in the pupil. k$x
'v#
! "T1#*"{j
delta = .025 ^`r|3c0
! *Qwhi&k
print "This program computes the chief ray coordinates," 8YLZ)k'
print "centroid coordinates, and middle coordinates for" aU8T i8A>
print "the primary wave spot at each field position." ?Nze P?g
maxfield = maxf() $No>-^ )
if maxfield == 0 then maxfield = 1 . N} }cJq
n = nsur() M^Ay,jK!
f = 1 ^]!1 'xg
label 1 K2o0L5Lke
hx = fldx(f)/maxfield @P5@ &G
hy = fldy(f)/maxfield "KE38`NL
raytrace hx,hy,0,0 )I-?zyL
format 10.4 I
3,e)Z
print )qP{X,Uf
print " X Field = ", fldx(f), B';> Hk
print " Y Field = ", fldy(f) \C2P{q/m
print " X Chief = ",rayx(n), x7kg_`\U
print " Y Chief = ",rayy(n) .,K?\WZ
xraymax = -9e9 !#gE'(J;c
yraymax = -9e9 QZa#i L
xraymin = 9e9 wOkJ:k
yraymin = 9e9 w |FV qX
xraytot = 0 o^"3C1j
yraytot = 0 i|{nj\6w^
numray = 0 DMZ aMY|
numrayattempt = 0 Qg$Nj=Cw
px = -1 - delta <RVtLTd/
label 2 c7Qa !w
px = px + delta |laKntv 2
py = -1 - delta =y]b|"s~2
label 3 &vvx "
py = py + delta
: It W|
rad = px*px + py*py k^\ &.63(
if rad <= 0.9999999 /IW=+ri
raytrace hx, hy, px, py >N1]h'q>
numrayattempt = numrayattempt+1 ` +UMZc
if !rayv(n) **************************** E0A|+P
'?
numray = numray + 1 lR2;g:& H
x = rayx(n) TdIFZ[<7
y = rayy(n) 5Zm_^IS
if (x < xraymin) then xraymin = x 4_0/]:~5
if (x > xraymax) then xraymax = x n)! _HNc9
if (y < yraymin) then yraymin = y 6$<o^Ha*R
if (y > yraymax) then yraymax = y )j|y.[
xraytot = xraytot + x yB{o_1tc
yraytot = yraytot + y ko> O ~@r
endif e+ w
endif B(Q.a&w45t
if py < 1.0 then goto 3 mqT0^TNPcl
if px < 1.0 then goto 2 ,( W98}nB
if numray ^&/&I9z
format 14.8 |(v=1 #i
print " X Centroid = ",xraytot/numray, ?q }wl\"8
print " Y Centroid = ",yraytot/numray JwVC?m).
print " X Middle = ",(xraymax+xraymin)/2, aDv/kFfn
print " Y Middle = ",(yraymax+yraymin)/2 i*w-Q=
format .0
QLU; .&
print " ",numray, " out of ", numrayattempt," rays made it through." NG!Q< !Y
else f qs p1m$
print " No rays made it through!" Wc>)/y5$
endif mg /kyua^
f=f+1 .ehvhMuG|
if f<= nfld() then goto 1 = >%%]0
print cP=mJ1
print "All field positions done!" <@!kR$Rd
FORMAT 0.1 CyDf[C)=
print "Elapsed time ", ETIM(), " seconds." /l%q q*Ew
