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············· *{@Nq=fE
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macro 正文：········· 69? wc!
! centroid.zpl wj<6kG
!
0hNA1Fh{U
! Written by Kenneth Moore 9/1/92 bv9]\qC]T<
! Added TIMER function 4/18/96 0r] t `{H
! Ae^~Cz1qz
TIMER s w oQ'
! @= Uh', F
! The delta controls how many rays will be traced. A -.@r#d /
! delta of .025 will trace a 80 x 80 grid in the pupil. eRst D>r
! Z{Qu<vy_
delta = .025 }wjw:M
! cLJ$M`e
print "This program computes the chief ray coordinates," C12Fl
print "centroid coordinates, and middle coordinates for" 6V :U (g
print "the primary wave spot at each field position." 9y8&9<#
maxfield = maxf() ,G Iy q)
if maxfield == 0 then maxfield = 1 18 d4fR
n = nsur() mh{d8<Q2
f = 1 :&rt)/I
label 1 W$;,CU.v
hx = fldx(f)/maxfield ufZDF=$7
hy = fldy(f)/maxfield nH'e?>x~e
raytrace hx,hy,0,0 _L UhZlw
format 10.4 @R"JW\bd
print sPQQ"|wU
print " X Field = ", fldx(f), I-)+bV
G
print " Y Field = ", fldy(f) GPv1fearl
print " X Chief = ",rayx(n), T|op$ s|
print " Y Chief = ",rayy(n) x8\?}UnB
xraymax = -9e9 S9D<8j^
yraymax = -9e9 SC!RbW@3
xraymin = 9e9 c(E{6g?
yraymin = 9e9 $q{!5-e
xraytot = 0 J T7nG.9
yraytot = 0 =tn)}Y.<e
numray = 0 syj0.JD
numrayattempt = 0 o5O#vW2Il&
px = -1 - delta \ gGW8Q ;
label 2 a=1@*ID
px = px + delta )5JFfp)#
py = -1 - delta 2'\H \|
label 3 a Qc leTb
py = py + delta Xp% v.M
rad = px*px + py*py o#gWbAG;]b
if rad <= 0.9999999 %y[h5 *y*
raytrace hx, hy, px, py hJ? O],4J
numrayattempt = numrayattempt+1 PO^ij2eS
if !rayv(n) **************************** ~2N"#b&J
numray = numray + 1 a :`E0}C
x = rayx(n) 6=/F$|
y = rayy(n) e4_rC'=
if (x < xraymin) then xraymin = x |O+H[;TB6
if (x > xraymax) then xraymax = x 'n]w"]|
if (y < yraymin) then yraymin = y rJT a
if (y > yraymax) then yraymax = y `r':by0M
xraytot = xraytot + x [Ek7b *
yraytot = yraytot + y QXFo1m
endif $G+@_'
endif ^|>PA:%
if py < 1.0 then goto 3 ]Sz:|%JP1
if px < 1.0 then goto 2 )[IC?U:5I
if numray RJ&RTo
format 14.8 MUc$ j&
print " X Centroid = ",xraytot/numray, 7"x;~X
print " Y Centroid = ",yraytot/numray MK~ 8}x 2K
print " X Middle = ",(xraymax+xraymin)/2, g2ixx+`?|:
print " Y Middle = ",(yraymax+yraymin)/2 -20bPiM$A
format .0 KC6.Fr{
print " ",numray, " out of ", numrayattempt," rays made it through." b3[!V{|
else 9T9!kb
print " No rays made it through!" w3_>VIZJl
endif 3M7/?TMw{6
f=f+1 fOGFq1D
if f<= nfld() then goto 1 itP,\k7>d
print qgHWUwr+n
print "All field positions done!" KY I /
FORMAT 0.1 $GcqBg-Hi
print "Elapsed time ", ETIM(), " seconds." C2I_%nU Z1
