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············· |h\e (_G \
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macro 正文：········· V}. uF,>V
! centroid.zpl iKnH6} `?U
! me_DONW
! Written by Kenneth Moore 9/1/92 9TIyY`2!
! Added TIMER function 4/18/96 -icOg6%
! .{1G"(z
TIMER :2pd2 S
! &=Gz[1
L
! The delta controls how many rays will be traced. A WS/^WxRY
! delta of .025 will trace a 80 x 80 grid in the pupil. 2?u>A3^R
! AON";&dLq-
delta = .025 J*o :RnB
! cv=nGFx6
print "This program computes the chief ray coordinates," %0fF _OU
print "centroid coordinates, and middle coordinates for" 1P.
W 34
print "the primary wave spot at each field position." MUhC6s\F
maxfield = maxf() d rnqX-E;
if maxfield == 0 then maxfield = 1 X^r5su?
n = nsur() }fpK{db
f = 1 jV]'/X<
label 1 ([R}s/)$
hx = fldx(f)/maxfield (o~f6pNB,
hy = fldy(f)/maxfield 1L]7*NJe
raytrace hx,hy,0,0 Z.a m^Q^Y!
format 10.4 1t_$pDF}
print 7-6Z\.-
print " X Field = ", fldx(f), }`8g0DPuD9
print " Y Field = ", fldy(f) 9I0/KuZd
O
print " X Chief = ",rayx(n), gh=s#DQsFw
print " Y Chief = ",rayy(n) l+Dl~o }
xraymax = -9e9 a*REx_gLG
yraymax = -9e9 kMWu%,s4
xraymin = 9e9 8
!Pk1P
yraymin = 9e9 q >/#
P5V
xraytot = 0 f #_ XR
yraytot = 0 (Z"Q HfO'
numray = 0 (f#QETiV
numrayattempt = 0 9_h 3<3e
px = -1 - delta n F~</>
label 2 @=,2 {JF*6
px = px + delta 0#lw?sv
py = -1 - delta hLPg=8nJ_
label 3 \kqa4{7 U(
py = py + delta
@[u!
rad = px*px + py*py et(/`
if rad <= 0.9999999 8>S"aHt 7
raytrace hx, hy, px, py vDZhoD=VR
numrayattempt = numrayattempt+1 TU&6\]yF_
if !rayv(n) **************************** j}u Fp|df<
numray = numray + 1 E/|]xKG
x = rayx(n) Qj5~ lX`W
y = rayy(n) E{kh)-
if (x < xraymin) then xraymin = x iwWy]V m7
if (x > xraymax) then xraymax = x jY
EB`&
if (y < yraymin) then yraymin = y EF=.L{
if (y > yraymax) then yraymax = y zvf:*N a")
xraytot = xraytot + x 3t22KY[`
yraytot = yraytot + y Q}FD u,
endif Zq=t&$*
endif OLJb 8kO
if py < 1.0 then goto 3 u3vBMe0v[
if px < 1.0 then goto 2 Z)EmX=
if numray bq[j4xH0X
format 14.8 ;<`F[V
Zau
print " X Centroid = ",xraytot/numray, pW7vY)hj
print " Y Centroid = ",yraytot/numray z"* X/T
print " X Middle = ",(xraymax+xraymin)/2, XIh2Y\33ys
print " Y Middle = ",(yraymax+yraymin)/2 LWHP31{ R
format .0 nkTH#WTfR
print " ",numray, " out of ", numrayattempt," rays made it through." tRRPNY
else _5%SYxF*y
print " No rays made it through!" 0h-holUf}~
endif a]'sby
f=f+1 \bYuAE1q
if f<= nfld() then goto 1 rGuhYYvK
print 8*kZ.-T
B
print "All field positions done!" hm3,?FMbq
FORMAT 0.1 yaD<jc(O
print "Elapsed time ", ETIM(), " seconds." >Z?fX
