[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············· XL_X0(AKf  
H6 ( ~6Bp5  
macro 正文：········· %4Ylq|d  
! centroid.zpl .Ej `!  
! g-U'{I5F  
! Written by Kenneth Moore 9/1/92 \K9XG/XIx  
! Added TIMER function 4/18/96 oOy@X =cw  
! )p4o4aM  
TIMER ^ ]SS\=7  
! V=Iau_  
! The delta controls how many rays will be traced. A &_HSrU  
! delta of .025 will trace a 80 x 80 grid in the pupil. 1 h|cr_  
! Y=sRVypJ  
delta = .025  HUr;ysw  
! b[$%Wg  
print "This program computes the chief ray coordinates," Vj_(55WQ  
print "centroid coordinates, and middle coordinates for" 8s-RNA>7^  
print "the primary wave spot at each field position." z[b,:G  
maxfield = maxf() B++.tQ=X.  
if maxfield == 0 then maxfield = 1 x~!B.4gT2  
n = nsur() S&}7jRH1  
f = 1 8N4W}YBs  
label 1 C_dsYuQ5R  
hx = fldx(f)/maxfield @=h%;"  
hy = fldy(f)/maxfield Yr-a8aSTE5  
raytrace hx,hy,0,0 Y}7'OM  
format 10.4 {J%Na&D  
print p<?~~7V  
print "  X Field    = ", fldx(f), p<Wb^BE  
print "  Y Field    = ", fldy(f) L7_(K
Ch  
print "  X Chief    = ",rayx(n), q<o*rcwf^  
print "  Y Chief    = ",rayy(n) Nt,)5_K <  
xraymax = -9e9 TDBWYppM  
yraymax = -9e9 [@U8&W  
xraymin =  9e9 MB"uJUk  
yraymin =  9e9 w5gN8ZF3  
xraytot = 0 Gg|'T}0X  
yraytot = 0 J0a]Wz%  
numray = 0 cR}}NF  
numrayattempt = 0 p18-yt; 1  
px = -1 - delta Qh%/{6(u  
label 2 7Gnslp?[U  
px = px + delta 9vWKyzMi  
py = -1 - delta !;{@O`j?b  
label 3 ~QFD ^SoK  
py = py + delta SKuZik_  
rad = px*px + py*py $SSE\+|3  
if rad <= 0.9999999 V.)y7B  
        raytrace hx, hy, px, py qGuz`&i  
        numrayattempt = numrayattempt+1 O_K@\<;~  
        if !rayv(n)                                              **************************** /%po@Pm#I  
                numray = numray + 1 F')T:;,s  
                x = rayx(n) 7{RI`Er`  
                y = rayy(n) tPPnW  
                if (x < xraymin) then xraymin = x +P/"bwv0  
                if (x > xraymax) then xraymax = x <*0MD6$5  
                if (y < yraymin) then yraymin = y `~UCWK  
                if (y > yraymax) then yraymax = y I+D`\OSL  
                xraytot = xraytot + x DBAJkBs  
                yraytot = yraytot + y IJ!]1fXy+  
        endif &JAQ:([:  
endif ehtiu!Vk  
if py < 1.0 then goto 3 ~'dnrhdme  
if px < 1.0 then goto 2 E"!9WF(2t5  
if numray BnvUPDT&  
        format 14.8 Jme}{!3m  
        print "  X Centroid = ",xraytot/numray, \hdR&f5q  
        print "  Y Centroid = ",yraytot/numray r/HKxXT  
        print "  X Middle   = ",(xraymax+xraymin)/2, cE 8vSQ%  
        print "  Y Middle   = ",(yraymax+yraymin)/2 [#V"a:8m}  
        format .0 J9)wt ?%j  
        print "  ",numray, " out of ", numrayattempt," rays made it through." "8ILV`[  
else a[\,K4l  
        print "  No rays made it through!" 8H./@~_ =  
endif 583ej2HPg  
f=f+1 6R%c+ok8i  
if f<= nfld() then goto 1 cx|[P6d  
print U(-9xp+  
print "All field positions done!" jPPaL]  
FORMAT 0.1 "sz LTC]*6  
print "Elapsed time ", ETIM(), " seconds." mz1Xk ]nE  

受教了 n]ar\f  

不敢當，互相切磋。

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 jf/;`br  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  a2dF(H  

(y~da~  
Kimclps兄果然学识过人，受教了·····

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 E8%O+x}  
的影響，因此須知道漸暈才能算出chief ray位置。