[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············· Yb i%od&  
mME4 l  
macro 正文：········· Xv <G-N4  
! centroid.zpl YIt& >  
! (6CN/A{qe  
! Written by Kenneth Moore 9/1/92 RgorkZlVM  
! Added TIMER function 4/18/96 ,mS/h~-5n  
! <e]Oa$  
TIMER P7ph}
mB  
! b*;"q9u5  
! The delta controls how many rays will be traced. A \l"&A  
! delta of .025 will trace a 80 x 80 grid in the pupil. n%R;-?*v  
! b `2|I {  
delta = .025 fJ\sguZ  
! !UOCJj.cA  
print "This program computes the chief ray coordinates," "'8KV\/D  
print "centroid coordinates, and middle coordinates for" x83 !C}4:  
print "the primary wave spot at each field position." n?\ nn3  
maxfield = maxf() !Fw?H3X!"q  
if maxfield == 0 then maxfield = 1 n,eJ$2!J  
n = nsur() &1l=X]%  
f = 1 9YsR~SM  
label 1 RjF'x  
hx = fldx(f)/maxfield ONNpiK-  
hy = fldy(f)/maxfield di)*-+  
raytrace hx,hy,0,0 B/5=]R  
format 10.4 IX: 25CEI2  
print 4k/VBZB  
print "  X Field    = ", fldx(f), k4qp u=@U  
print "  Y Field    = ", fldy(f) O%1v)AT&\  
print "  X Chief    = ",rayx(n), RsU3Gi_Zdz  
print "  Y Chief    = ",rayy(n) L-pVltX  
xraymax = -9e9 4!asT;`'  
yraymax = -9e9 lnovykR  
xraymin =  9e9 {GvTfZfp  
yraymin =  9e9 `r5$LaD  
xraytot = 0 !3mA0-!+  
yraytot = 0 5qg2Zc~  
numray = 0 B63pgPX  
numrayattempt = 0 8ul&x~2;X  
px = -1 - delta BR'I+lQ  
label 2 j-CnT)W<  
px = px + delta Tu{h<Zy  
py = -1 - delta h2ZkCML  
label 3 nf1#tlIJd  
py = py + delta ZYf2XI(_"  
rad = px*px + py*py 2^t#6XBk/  
if rad <= 0.9999999 7NC=*A~  
        raytrace hx, hy, px, py )$w*V9d  
        numrayattempt = numrayattempt+1 +\li*G]:J  
        if !rayv(n)                                              ****************************
1)}=bhT  
                numray = numray + 1 j1SMeDDM ~  
                x = rayx(n) bX.ja;;   
                y = rayy(n) *A}cL  
                if (x < xraymin) then xraymin = x QKN<+,h!z>  
                if (x > xraymax) then xraymax = x o7B[R) 4  
                if (y < yraymin) then yraymin = y @ S
<-d  
                if (y > yraymax) then yraymax = y :16P.z1L  
                xraytot = xraytot + x #jAqra._b  
                yraytot = yraytot + y pLMRwgzr  
        endif Lad
sw  
endif tb:L\A^:  
if py < 1.0 then goto 3 ,uzN4_7u  
if px < 1.0 then goto 2 liR?  
if numray _k^0m
 
        format 14.8 [4fU+D2\d  
        print "  X Centroid = ",xraytot/numray, yq+!czlZ  
        print "  Y Centroid = ",yraytot/numray _U;e
N|Ww  
        print "  X Middle   = ",(xraymax+xraymin)/2, &V|>dLT>A  
        print "  Y Middle   = ",(yraymax+yraymin)/2 r>jC_7  
        format .0 >3awn*N  
        print "  ",numray, " out of ", numrayattempt," rays made it through." LqdY Qd51  
else .(J
?a"  
        print "  No rays made it through!" 8/z3=O&  
endif }F+zs*S  
f=f+1 ~&\ f|%  
if f<= nfld() then goto 1 T#pk]c6Q  
print B?$ "\;&  
print "All field positions done!" 3] 1-M  
FORMAT 0.1 AmwWH7,g  
print "Elapsed time ", ETIM(), " seconds." X(jVRr_m9  

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 N_L,]QT?  
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 LtT\z<bAI  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  c62=*] ,  

1GEK:g2B  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 V+?]S