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············· PLs(+>H
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macro 正文：········· &d i=alvv1
! centroid.zpl `!7QegJa"
! ^|lG9z%Foy
! Written by Kenneth Moore 9/1/92 B+2Jea,N
! Added TIMER function 4/18/96 a 8.Xy])!
! \!!1 o+#1j
TIMER 2hF j+Ay
! P(Z\y^S
! The delta controls how many rays will be traced. A @W\ H%VR
! delta of .025 will trace a 80 x 80 grid in the pupil. 06fs,! Q@
! >&l{ _b\k
delta = .025 B6" pw0
! p^i]{"sjbU
print "This program computes the chief ray coordinates," LAPC L&Z
print "centroid coordinates, and middle coordinates for" <G #z;]N
print "the primary wave spot at each field position." 6u ubkt
maxfield = maxf() - K U@0G
if maxfield == 0 then maxfield = 1 %LBT:Aw
n = nsur() hSfLNv K
f = 1 hv 8j$2m
label 1 8`;3`lZ
hx = fldx(f)/maxfield &$hT27A>k
hy = fldy(f)/maxfield hP26 Bb1
raytrace hx,hy,0,0 Z=CY6Zu 7
format 10.4 s&~ .";b
print SM8m\c
print " X Field = ", fldx(f), +)QA!g$
print " Y Field = ", fldy(f) v}-j ls
print " X Chief = ",rayx(n), lp%i%*EQ*
print " Y Chief = ",rayy(n) }doJ= lc
xraymax = -9e9 wO3K2I]>0
yraymax = -9e9 ?jRyw(Q
xraymin = 9e9 LTt | "D
yraymin = 9e9 +)7Yqh#$
xraytot = 0 5N4[hQrVJ
yraytot = 0 9\[A%jp#K@
numray = 0 <u 85>x
numrayattempt = 0 7]6HXR @
px = -1 - delta HOY9{>E}z
label 2 6
w:@i_2^
px = px + delta C/ je5
py = -1 - delta GDj
ViAFm
label 3 mQ]wLPP{1
py = py + delta U?:<clh
rad = px*px + py*py jboQ)NxT!,
if rad <= 0.9999999 H<6/i@ly
raytrace hx, hy, px, py W!G2$e6
numrayattempt = numrayattempt+1 $6]7>:8 mz
if !rayv(n) **************************** <r{ )*]#l
numray = numray + 1 ET7(n0*P}]
x = rayx(n) 2 !^[x~t
y = rayy(n) (iZE}qf7 g
if (x < xraymin) then xraymin = x );.q:"
if (x > xraymax) then xraymax = x 'ehJr/0&g
if (y < yraymin) then yraymin = y n/3gx4.g
if (y > yraymax) then yraymax = y bUp
,vc*
xraytot = xraytot + x H.ZmLB
yraytot = yraytot + y cn4C K. ?
endif 6T_Mk0Sf+
endif U-#t&yjh#
if py < 1.0 then goto 3 y'<juaw
if px < 1.0 then goto 2 |ei?s1)
if numray <k^P>Irb3t
format 14.8 \
l +RX*
print " X Centroid = ",xraytot/numray, i7[CqObzc
print " Y Centroid = ",yraytot/numray M_2[Wypw
print " X Middle = ",(xraymax+xraymin)/2, PIuk]&L^
print " Y Middle = ",(yraymax+yraymin)/2 qK4E:dD
format .0 #(53YoV_8
print " ",numray, " out of ", numrayattempt," rays made it through." 6SMGXy*]^
else n NI V(
print " No rays made it through!" @awaN
endif :ji_dQ8k
f=f+1 OjCT*qyU<
if f<= nfld() then goto 1 HB4Hz0Fa
print WG;1[o&
print "All field positions done!" W&]grG2/
FORMAT 0.1 PiZt?r?5w|
print "Elapsed time ", ETIM(), " seconds." NBR6$n
