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············· ,,j=RG_
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macro 正文：········· <TROs! x$a
! centroid.zpl
O ,,n
! *UxB`iA
! Written by Kenneth Moore 9/1/92 GB0b|9(6D"
! Added TIMER function 4/18/96 ImY*cW=M
! )BTs *7 j
TIMER <T% hfW
! \ 6
0WP-s
! The delta controls how many rays will be traced. A = FJ9wiL
! delta of .025 will trace a 80 x 80 grid in the pupil. 8ch~UBq/
! 9}Ave:X^
delta = .025 M&T/vByTn_
! ZV^J5wYE
print "This program computes the chief ray coordinates," 3a[(GW _
print "centroid coordinates, and middle coordinates for" qJzK8eW
print "the primary wave spot at each field position." c] 0
maxfield = maxf() Mz. &d:
if maxfield == 0 then maxfield = 1 Gqc6).tn
n = nsur() OQ*. ho
f = 1 F"TI 9ib
label 1 ~u& O
hx = fldx(f)/maxfield {O oNhN9
hy = fldy(f)/maxfield Sqt" G6<
raytrace hx,hy,0,0 f?^xh
format 10.4 [bVP2j
print &Gwh<%=U
print " X Field = ", fldx(f), <RsKV$Je
I
print " Y Field = ", fldy(f) 9)hC,)5
print " X Chief = ",rayx(n), IL"#T KKv
print " Y Chief = ",rayy(n) o% 4+I>
xraymax = -9e9 +! Ag n)
yraymax = -9e9 R~(.uV`#j
xraymin = 9e9 HON[{Oq
yraymin = 9e9 SLB iQd.
xraytot = 0 Vta;ibdeqW
yraytot = 0 o=2`N2AL
numray = 0 kYa'
] m
numrayattempt = 0 U VU*5U~
px = -1 - delta g*AqFY7 |
label 2 L tIZgOd<
px = px + delta Mxp4 YQl
py = -1 - delta _)"
5
gv
label 3 iW$i%`>
py = py + delta ^Wz{su 2
rad = px*px + py*py ZSb+92g{L$
if rad <= 0.9999999 41D[[Gh
raytrace hx, hy, px, py )U`kU`+'
numrayattempt = numrayattempt+1 NU*6iLIq|F
if !rayv(n) **************************** (_<n 0
numray = numray + 1 $&C%C\(>D
x = rayx(n) V-u\TiL
y = rayy(n) 4Lb<#e13R?
if (x < xraymin) then xraymin = x lV="IP^7
if (x > xraymax) then xraymax = x hlEvL
if (y < yraymin) then yraymin = y NtL?cWct
if (y > yraymax) then yraymax = y rvO+=Tk
xraytot = xraytot + x Bqgw %_
yraytot = yraytot + y cIkLdh
endif UG$i5PV%i
endif ]F#kM21 1
if py < 1.0 then goto 3 T^>cT"ux_
if px < 1.0 then goto 2 >s~`K^zS
if numray gE(03SX
format 14.8 h UDEjW@S
print " X Centroid = ",xraytot/numray, ArM e[t0$
print " Y Centroid = ",yraytot/numray 5?" ZM'4
print " X Middle = ",(xraymax+xraymin)/2, z05pVe/5
print " Y Middle = ",(yraymax+yraymin)/2 i:To8kdO
format .0 M-t9zT
print " ",numray, " out of ", numrayattempt," rays made it through." Jt][b
else 9r}} m0
print " No rays made it through!" K~G^jAk+
endif ~C+T|
f=f+1 ,)8Hl[ y
if f<= nfld() then goto 1 ;kA2"c] m
print v\u+=}r l
print "All field positions done!" 4Qs#ws])
FORMAT 0.1 }=5(*Vg
print "Elapsed time ", ETIM(), " seconds." WOoVVjM M
