[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············· {o~TbnC  
\c2x udU  
macro 正文：········· A4zI1QF  
! centroid.zpl pS$9mzY  
! }u8(7  
! Written by Kenneth Moore 9/1/92 ,5W7a  
! Added TIMER function 4/18/96 J4+K
)gWB  
! ;"M6}5dQ4  
TIMER _d 6'f8[&  
! CcQc!`YC  
! The delta controls how many rays will be traced. A y i$+rPF1  
! delta of .025 will trace a 80 x 80 grid in the pupil. ?^U?ua6  
! m!ZY]:)$  
delta = .025 2E1`r@L  
! J%?5d:iN+  
print "This program computes the chief ray coordinates," 8KJUC&`  
print "centroid coordinates, and middle coordinates for" I8XP`Ccq  
print "the primary wave spot at each field position."  E0!d c  
maxfield = maxf() )K[\j?
 
if maxfield == 0 then maxfield = 1 ,sitOy}ks  
n = nsur() A:m+v{*`4  
f = 1 nP%U<$,+  
label 1 xt}.0dC!/%  
hx = fldx(f)/maxfield LG8h@HY&L  
hy = fldy(f)/maxfield Jg$<2CR&  
raytrace hx,hy,0,0 #LR4%}mg  
format 10.4 ),yar9C  
print {&+M.Xn  
print "  X Field    = ", fldx(f),
.2&L.  
print "  Y Field    = ", fldy(f) 'I>USl3hI  
print "  X Chief    = ",rayx(n), T +vo)9w  
print "  Y Chief    = ",rayy(n)  x+cL(R  
xraymax = -9e9 d.?}>jl  
yraymax = -9e9 %*Ex2we&  
xraymin =  9e9 t*hy"e{*a  
yraymin =  9e9 !=eNr<:V.  
xraytot = 0 ]In7%Qb  
yraytot = 0 'Q=;I  
numray = 0 _M%>Qm  
numrayattempt = 0 b- - tl@H  
px = -1 - delta eA7 Iv{M  
label 2 9s<4`oa  
px = px + delta 1 !_p  
py = -1 - delta Z3JUYEAS  
label 3 hEHd$tH06  
py = py + delta Srx:rUCv  
rad = px*px + py*py eN<L)a:J_  
if rad <= 0.9999999 X$5  
        raytrace hx, hy, px, py 2PAu>}W*  
        numrayattempt = numrayattempt+1 *k7BE_&*0Z  
        if !rayv(n)                                              **************************** j{lurb)y  
                numray = numray + 1 ,<IomA:q4  
                x = rayx(n) ?#w} S%  
                y = rayy(n) {.2\}7.c  
                if (x < xraymin) then xraymin = x X.>=&~[  
                if (x > xraymax) then xraymax = x TR3U<:  
                if (y < yraymin) then yraymin = y QdgJNT<=H,  
                if (y > yraymax) then yraymax = y %>$<s<y  
                xraytot = xraytot + x 2{?]W/&fS  
                yraytot = yraytot + y f|,Kh1{e  
        endif @ZU$W9g  
endif 7_\F$bp`  
if py < 1.0 then goto 3 wj6u,+  
if px < 1.0 then goto 2 KAnV%j  
if numray d1/WUKmbZ  
        format 14.8 MS\vrq'_  
        print "  X Centroid = ",xraytot/numray, y.lWyH9  
        print "  Y Centroid = ",yraytot/numray {A/^;
X{N^  
        print "  X Middle   = ",(xraymax+xraymin)/2, n725hY6}<l  
        print "  Y Middle   = ",(yraymax+yraymin)/2 qm$(_]R~`  
        format .0 zx%WV@O9  
        print "  ",numray, " out of ", numrayattempt," rays made it through." Rq}lW.<r  
else N[@H107`  
        print "  No rays made it through!" 0Ncpi=6  
endif -8^qtB  
f=f+1 @[lMh9`  
if f<= nfld() then goto 1 ES4Wtc)&  
print '?Dxe B  
print "All field positions done!" 'TS_Am?o  
FORMAT 0.1 ^7yt>  
print "Elapsed time ", ETIM(), " seconds." =|-=4.b+|  

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 tQ{/9bN?P  
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 Ixn|BCi60A  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  'mZv5?  

L"'=[O~  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 #+o$Tg