[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············· Y$0Y_fm%  
xtef18i>  
macro 正文：········· p`// *gl  
! centroid.zpl *B7+rd  
! /5^"n4/M  
! Written by Kenneth Moore 9/1/92 /"A)}>a  
! Added TIMER function 4/18/96 f\sxx!kt  
! GE`:bC
3  
TIMER nJJ9>#<g$  
! ]I9Hbw  
! The delta controls how many rays will be traced. A +.N3kH  
! delta of .025 will trace a 80 x 80 grid in the pupil. (?SK< 4!  
! x0^O?UR  
delta = .025
h+e Oe}  
! gxEa?QH  
print "This program computes the chief ray coordinates," tGGv 2TCEy  
print "centroid coordinates, and middle coordinates for" aRBTuLa)fo  
print "the primary wave spot at each field position." 2|vArRKt  
maxfield = maxf() [
h "*>J{  
if maxfield == 0 then maxfield = 1 ViV"+b#gu  
n = nsur() % AqUVt9}  
f = 1 D9H(kk  
label 1 lv_|ws  
hx = fldx(f)/maxfield Vv=/{31  
hy = fldy(f)/maxfield #J.v[bOWQ  
raytrace hx,hy,0,0 Z%3]  
format 10.4 Sa!r ,l  
print ^,L vQW4  
print "  X Field    = ", fldx(f), csg:#-gE  
print "  Y Field    = ", fldy(f) G}aw{Vbg_  
print "  X Chief    = ",rayx(n), *vn^ W  
print "  Y Chief    = ",rayy(n) LG6VeYe|\X  
xraymax = -9e9 NET?Ep  
yraymax = -9e9 ~b+TkPU   
xraymin =  9e9 8X=cGYC#  
yraymin =  9e9 ,}15Cse  
xraytot = 0 5y7rY!]Bf  
yraytot = 0 9-;ujl?{  
numray = 0 k9j_#\E[  
numrayattempt = 0 8H4"mx
O  
px = -1 - delta jEj#
|w  
label 2 gakmg#ki  
px = px + delta u.( WW(/N  
py = -1 - delta  :[:5^R  
label 3 ^|^ek  
py = py + delta t0_o.S  
rad = px*px + py*py t3ua5xw  
if rad <= 0.9999999 fj X~"U  
        raytrace hx, hy, px, py c|<*w[%C  
        numrayattempt = numrayattempt+1 (4_7ICFI  
        if !rayv(n)                                              **************************** -x~h.s,  
                numray = numray + 1 >r%L=22+  
                x = rayx(n) &V7@ TZ  
                y = rayy(n) QjH;'OVt  
                if (x < xraymin) then xraymin = x 70NQ9*AAy  
                if (x > xraymax) then xraymax = x "p>$^   
                if (y < yraymin) then yraymin = y ,L#Qy>MOb  
                if (y > yraymax) then yraymax = y sBP.P7u  
                xraytot = xraytot + x 12 HBq8o  
                yraytot = yraytot + y K;jV"R<9  
        endif ;cQhs7m(9  
endif d (Ufj|;  
if py < 1.0 then goto 3 ,i>u>YNZ  
if px < 1.0 then goto 2 x2
p}0N  
if numray Jlw<%}r  
        format 14.8 O+I\Q?  
        print "  X Centroid = ",xraytot/numray, :.kc1_veYS  
        print "  Y Centroid = ",yraytot/numray a1Q|su{H  
        print "  X Middle   = ",(xraymax+xraymin)/2, N9LBji;nH  
        print "  Y Middle   = ",(yraymax+yraymin)/2 TWF6YAQm  
        format .0 ~l$u~:4Ob  
        print "  ",numray, " out of ", numrayattempt," rays made it through." bJc<FL<E  
else K_/8MLJQ  
        print "  No rays made it through!" >|%dN jf@Q  
endif g_lj/u]P  
f=f+1 }7iWmXlI  
if f<= nfld() then goto 1 n%;wQ^  
print 3nb&Z_/e  
print "All field positions done!" n_;qB7,,  
FORMAT 0.1 f%n],tE6  
print "Elapsed time ", ETIM(), " seconds." ]
v=*WK  

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 r0ml|PX  
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 BE,XiH;  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  m\9R;$\  

GYvD*?uBc  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 j-~x==c-;