[讨论]macros [复制链接]

       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············· R[mH35D/  
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macro 正文：········· W}#QKZ)MB  
! centroid.zpl WZ-4^WM=!  
! S!`4Bl  
! Written by Kenneth Moore 9/1/92 xiOv$.@q  
! Added TIMER function 4/18/96 8:3oH!n  
!
pgLzFY['  
TIMER N7RG5?  
! ae9k[=-  
! The delta controls how many rays will be traced. A 3Hb .ZLE#  
! delta of .025 will trace a 80 x 80 grid in the pupil. +X2 i/}  
! rw}
5nv  
delta = .025 /-G qG)PX  
! oo$WD6eCR  
print "This program computes the chief ray coordinates," /iuUUCk  
print "centroid coordinates, and middle coordinates for" >#"jfjDuR
 
print "the primary wave spot at each field position." =jk-s*g  
maxfield = maxf() ($[r>)TG  
if maxfield == 0 then maxfield = 1 }`+^|1  
n = nsur() &vJ(P!2f<  
f = 1 [9YlLL@  
label 1 Q KcF1?  
hx = fldx(f)/maxfield 3isXgp8  
hy = fldy(f)/maxfield T@d_t  
raytrace hx,hy,0,0 Mc#O+'](f  
format 10.4 tF;& x g  
print @4 Os?_gJ\  
print "  X Field    = ", fldx(f),

"tg\yem  
print "  Y Field    = ", fldy(f) ~u~[E  
print "  X Chief    = ",rayx(n), ei|*s+OZu  
print "  Y Chief    = ",rayy(n) ^2Fs)19R  
xraymax = -9e9 web8QzLLB  
yraymax = -9e9 5tgILxSK  
xraymin =  9e9 KL
:6P-3  
yraymin =  9e9 QYf/tQg$  
xraytot = 0 pjmGzK  
yraytot = 0 rH2tC=%  
numray = 0 r0hta)xa  
numrayattempt = 0 :#Ex3H7  
px = -1 - delta dc\u$'F@S  
label 2 =Nv=Q mO  
px = px + delta >H=Q$gI  
py = -1 - delta "t%1@b*u  
label 3 5b{yA~ty  
py = py + delta d<|lLNS  
rad = px*px + py*py I 1VEm?CQ  
if rad <= 0.9999999 <De3mZb  
        raytrace hx, hy, px, py w ;
s ]n  
        numrayattempt = numrayattempt+1 l6}b{e  
        if !rayv(n)                                              **************************** jV|$? Rcl%  
                numray = numray + 1 NZ%~n:/V#  
                x = rayx(n) upEPv .h  
                y = rayy(n) D"(3VIglq  
                if (x < xraymin) then xraymin = x K#6`LL m  
                if (x > xraymax) then xraymax = x die2<'\4%  
                if (y < yraymin) then yraymin = y 1 ">d|oC  
                if (y > yraymax) then yraymax = y esC\R4he  
                xraytot = xraytot + x Fgc:6<MGM  
                yraytot = yraytot + y \$~oH3m&  
        endif S\{^LVXTMd  
endif VT.{[Kl  
if py < 1.0 then goto 3 $jm>tW&;  
if px < 1.0 then goto 2 tE9_dR^K  
if numray 4-}A'fTU8  
        format 14.8 jFPE>F7-M  
        print "  X Centroid = ",xraytot/numray, J:mu%N`  
        print "  Y Centroid = ",yraytot/numray 8)q]^  
        print "  X Middle   = ",(xraymax+xraymin)/2, L9unhx  
        print "  Y Middle   = ",(yraymax+yraymin)/2 `S/1U87  
        format .0 1A/c/iC  
        print "  ",numray, " out of ", numrayattempt," rays made it through." hO<w]jV,  
else `9Q,=D+  
        print "  No rays made it through!" !MF"e|W
  
endif < jocfTBk  
f=f+1 jO3u]5}.6  
if f<= nfld() then goto 1 VqO<+~M,E  
print <cfH'~  
print "All field positions done!" j2{,1hj  
FORMAT 0.1 Mp=kZs/  
print "Elapsed time ", ETIM(), " seconds." TLL[F;uZ  

centroid的chief ray定義為通過光束中心(而非stop中心)的光線，其位置會受漸暈 s3
E~X  
的影響，因此須知道漸暈才能算出chief ray位置。

kimclps:centroid的chief ray定義為通過光束中心(而非stop中心)的光線，其位置會受漸暈 4Hpu EV8Q  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  GGL4<P7  

MMr7,?,$  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 8PjhvU