[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············· [vuikJP>1k  
gkTwGI+w  
macro 正文：········· CUc,  
! centroid.zpl FeZWS>N  
! "ivVIq2  
! Written by Kenneth Moore 9/1/92 s!D?%  
! Added TIMER function 4/18/96 z*b|N45O  
! (7,Q4T  
TIMER p]~PyzG!  
! .#sX|c=W  
! The delta controls how many rays will be traced. A VR_/Vh
]@  
! delta of .025 will trace a 80 x 80 grid in the pupil. `tT7&*Os  
! !jEV75  
delta = .025 ">8oF.A^  
! dR>$vbjh1Z  
print "This program computes the chief ray coordinates," <o|k'Y(-  
print "centroid coordinates, and middle coordinates for" s)3Co
sU  
print "the primary wave spot at each field position." MUtM^uY  
maxfield = maxf() ? YIe<  
if maxfield == 0 then maxfield = 1 ZF#lh]  
n = nsur() >}0H5Q8@  
f = 1 #ax% n  
label 1 )B-[Q#*A-  
hx = fldx(f)/maxfield D>U(&n  
hy = fldy(f)/maxfield S+eu3nMq  
raytrace hx,hy,0,0 6v}q @z  
format 10.4 /IX555/dR1  
print pFu!$.Fr  
print "  X Field    = ", fldx(f), is%ef  
print "  Y Field    = ", fldy(f) 2.@IfBF6  
print "  X Chief    = ",rayx(n), eLHhfu;k  
print "  Y Chief    = ",rayy(n) e<A>??h^  
xraymax = -9e9 (B@\Dw8^  
yraymax = -9e9 ^xgPL'  
xraymin =  9e9 EN}4-P/
5  
yraymin =  9e9 ]<%NX $9\  
xraytot = 0 7FaF]G  
yraytot = 0 /{[tU-}qJ  
numray = 0 F$|d#ny  
numrayattempt = 0 )"tM[~e`  
px = -1 - delta 3T 0'zJ2f  
label 2 w!d(NA<|0]  
px = px + delta p? VDBAx  
py = -1 - delta S;#7B?j  
label 3 UT 7'-  
py = py + delta e!w{ap8u  
rad = px*px + py*py vkYiO]y  
if rad <= 0.9999999 l8%BRG  
        raytrace hx, hy, px, py 5YI6$ZdQ  
        numrayattempt = numrayattempt+1 7''iT{-[p  
        if !rayv(n)                                              **************************** \7o7~pll  
                numray = numray + 1 |hDN$By  
                x = rayx(n) YiL^KK  
                y = rayy(n) L&|^y8
 
                if (x < xraymin) then xraymin = x ZRr.kN+F  
                if (x > xraymax) then xraymax = x Hy'E
bQ  
                if (y < yraymin) then yraymin = y hVZS6gU,x  
                if (y > yraymax) then yraymax = y Crla~h?=
 
                xraytot = xraytot + x "N,@J-]/k  
                yraytot = yraytot + y Nd;pkssd  
        endif jQfnc:
'  
endif )T slI  
if py < 1.0 then goto 3 KNF{NFk  
if px < 1.0 then goto 2 = ~*Vfx  
if numray  ,HNk<W  
        format 14.8 {8;}y[R  
        print "  X Centroid = ",xraytot/numray, .%0a  
        print "  Y Centroid = ",yraytot/numray Qo(<>d  
        print "  X Middle   = ",(xraymax+xraymin)/2, z 7cA5'c  
        print "  Y Middle   = ",(yraymax+yraymin)/2 cxPOO#  
        format .0 kcNPdc  
        print "  ",numray, " out of ", numrayattempt," rays made it through." xj]^<oi<  
else QPFv]^s(  
        print "  No rays made it through!" y<BG-  
endif \mt Y_O  
f=f+1 !Ap*PL  
if f<= nfld() then goto 1 `lbRy($L  
print OzTR#`oey  
print "All field positions done!" F+D e"^As  
FORMAT 0.1 L?
Ih;  
print "Elapsed time ", ETIM(), " seconds." >V%.=})K  

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 <c,iu{:
 
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 Ai`0Ud,M@  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  [q|8.>sB  

1E$^ul-v  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 EV R>R