[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············· N<(.%<!  
VQ#3#Hj  
macro 正文：········· XB59Vm0E=  
! centroid.zpl p< "3&HA  
! JW.=T)  
! Written by Kenneth Moore 9/1/92 pmWr]G3,*  
! Added TIMER function 4/18/96 =#gEB#$x:  
! }Gyqq6Aeb  
TIMER fw6UhG  
! \>QF(J [8  
! The delta controls how many rays will be traced. A Xx:F)A8O  
! delta of .025 will trace a 80 x 80 grid in the pupil. Y!J>U  
! ~{,X3-S_H  
delta = .025 L|@y&di  
! *3/T;x.  
print "This program computes the chief ray coordinates," e[_m<e  
print "centroid coordinates, and middle coordinates for" MY#   
print "the primary wave spot at each field position." $-}e; VZb  
maxfield = maxf() \;u@"  
if maxfield == 0 then maxfield = 1 ,Uhb  
n = nsur() _j?e~w&0b  
f = 1 1K,1X(0rL8  
label 1 ,L bBpi=TJ  
hx = fldx(f)/maxfield %wcSM~w
 
hy = fldy(f)/maxfield o6 E!IX+  
raytrace hx,hy,0,0 sm[94,26  
format 10.4 QTX8 L  
print YW u cvw&  
print "  X Field    = ", fldx(f), p~HW5\4  
print "  Y Field    = ", fldy(f) Tm_B^W}  
print "  X Chief    = ",rayx(n), X3'H `/  
print "  Y Chief    = ",rayy(n) ]I3!fEAWR  
xraymax = -9e9 Mi'8 ~J  
yraymax = -9e9 `Qr%+OD  
xraymin =  9e9 W@|6nPm  
yraymin =  9e9 xk&Jl#
v  
xraytot = 0 AKMm&(fh%  
yraytot = 0 [(1c<b2r  
numray = 0 ;q N+^;,2  
numrayattempt = 0 yE[#ze  
px = -1 - delta otggN:^Qw  
label 2 Z R/#V7Pj  
px = px + delta 4jD2FFG- G  
py = -1 - delta 5waKI?4F  
label 3 zg-2C>(6a  
py = py + delta M%jPH  
rad = px*px + py*py K2%w0ohC  
if rad <= 0.9999999 g1t0l%_7^  
        raytrace hx, hy, px, py UG=K|OXWJ  
        numrayattempt = numrayattempt+1 ME'|saP  
        if !rayv(n)                                              **************************** o sKKt?^?  
                numray = numray + 1 |2{wG
4  
                x = rayx(n) "*G.EiLq  
                y = rayy(n) R<OI1,..r  
                if (x < xraymin) then xraymin = x (?nCyHC%g  
                if (x > xraymax) then xraymax = x }.s~T#v  
                if (y < yraymin) then yraymin = y 
E[Cb|E  
                if (y > yraymax) then yraymax = y Z+@2"%W  
                xraytot = xraytot + x +TXX$)3%  
                yraytot = yraytot + y bV,}Pp+/"!  
        endif :9k Ty:  
endif eq UME  
if py < 1.0 then goto 3 uu`G 2[t  
if px < 1.0 then goto 2 g)-bW+]q  
if numray }iuWAFZbGS  
        format 14.8 iX)%Q  
        print "  X Centroid = ",xraytot/numray, cTG|fdgMW  
        print "  Y Centroid = ",yraytot/numray o}ZdTf=  
        print "  X Middle   = ",(xraymax+xraymin)/2, 1dK*y'rx  
        print "  Y Middle   = ",(yraymax+yraymin)/2 >
y,-v
:Vy  
        format .0 eH{[C*  
        print "  ",numray, " out of ", numrayattempt," rays made it through." 7Hs%Cc"  
else S\;V4@<Kn  
        print "  No rays made it through!" %$b:X5$Z  
endif t<#h$}=:Vt  
f=f+1 SJHr_bawd  
if f<= nfld() then goto 1 R rda# h^  
print <)3u6Vky9  
print "All field positions done!" o_~eg8  
FORMAT 0.1 {E@Lft-  
print "Elapsed time ", ETIM(), " seconds." AB4(+S*LA  

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 #~ )IJ  
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 {zQ8)$CQ  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  
/_I]H  

A%KDiIA  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 6Ypc`