[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············· kJ~^ }o  
}g3)z%Xe'[  
macro 正文：········· 2LgRgY{Bl  
! centroid.zpl a/?gp>M9  
! kcQ |Z
g  
! Written by Kenneth Moore 9/1/92 E;h#3 B9  
! Added TIMER function 4/18/96 %N!Y}$y  
! =Y89X6  
TIMER )9Jt55
0(  
! 50CU|  
! The delta controls how many rays will be traced. A r|&qXb x  
! delta of .025 will trace a 80 x 80 grid in the pupil. 0BD3~Lv  
! -tDmzuD6  
delta = .025 & K7+V  
! *s_)E2  
print "This program computes the chief ray coordinates," nkvzv  
print "centroid coordinates, and middle coordinates for" gvz&ppcG  
print "the primary wave spot at each field position." B&tl6?7h  
maxfield = maxf() lT*Hj.  
if maxfield == 0 then maxfield = 1 +lE 9*Gs_$  
n = nsur() b-ZvEDCR  
f = 1 }4+S_b  
label 1 R,tR{| 8  
hx = fldx(f)/maxfield x3)qK6,\  
hy = fldy(f)/maxfield u+S
*D\p<`  
raytrace hx,hy,0,0 f4uK_{  
format 10.4 ]` 3;8,  
print O"Ar3>  
print "  X Field    = ", fldx(f), Q~uj:A]n<  
print "  Y Field    = ", fldy(f) 514;!Q4K  
print "  X Chief    = ",rayx(n), W<kJ%42^j  
print "  Y Chief    = ",rayy(n) KO:o GUR  
xraymax = -9e9 qdzc"-gH`  
yraymax = -9e9 6N6d[t"  
xraymin =  9e9 yay{lP}b"  
yraymin =  9e9 j5tA!o  
xraytot = 0 2E;*kKw[  
yraytot = 0 ~`T3 i  
numray = 0 7j{SCE;  
numrayattempt = 0 Z5\u9E"]  
px = -1 - delta '%kk&&3'  
label 2 v2dCna\  
px = px + delta d&t|Y:,8  
py = -1 - delta A"p7N?|%  
label 3 %KRAcCa7  
py = py + delta Pr/K5aJeg  
rad = px*px + py*py ><5tnBP|+L  
if rad <= 0.9999999 jFnq{Lt  
        raytrace hx, hy, px, py K6_{AuL}4  
        numrayattempt = numrayattempt+1 ]
0g<][m  
        if !rayv(n)                                              **************************** >OmY  
                numray = numray + 1 #O qfyY!  
                x = rayx(n) mM1\s>o  
                y = rayy(n) umK~K!i  
                if (x < xraymin) then xraymin = x <SOC  
                if (x > xraymax) then xraymax = x b4i=eI8  
                if (y < yraymin) then yraymin = y DTPYCG&%  
                if (y > yraymax) then yraymax = y #%Uk}5;-  
                xraytot = xraytot + x wF[^?K '  
                yraytot = yraytot + y 79=w]y  
        endif V#=o<  
endif Il>!C\hU  
if py < 1.0 then goto 3 &p`RKD  
if px < 1.0 then goto 2 }n oI2.-#  
if numray cYq<.A(hVj  
        format 14.8 8E ^yHd4Y  
        print "  X Centroid = ",xraytot/numray, %jim] ]<S[  
        print "  Y Centroid = ",yraytot/numray RT4ns+J1  
        print "  X Middle   = ",(xraymax+xraymin)/2, f_7a) 'V4  
        print "  Y Middle   = ",(yraymax+yraymin)/2 v|"Nx42  
        format .0 ZWxq<&Cg  
        print "  ",numray, " out of ", numrayattempt," rays made it through." +m]$P,yMt  
else +t})tDPXw  
        print "  No rays made it through!" :
6./yj(  
endif O3PE w4yA  
f=f+1 la[xbv   
if f<= nfld() then goto 1 $-
EbJ  
print &AG,]#  
print "All field positions done!" sTU`@}}  
FORMAT 0.1 *O+
G}_}  
print "Elapsed time ", ETIM(), " seconds." M9[Fx=
qY  

受教了 TLU^ad#9E  

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 Ta^l1]9.*  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  N% /if  

s\A"B#9r  
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 0T-y]&uo  
的影響，因此須知道漸暈才能算出chief ray位置。