[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············· h
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macro 正文：········· +;Gvp=hk  
! centroid.zpl /Xv@g$  
! Q5u3~Q'e  
! Written by Kenneth Moore 9/1/92 lTFo#p_(  
! Added TIMER function 4/18/96  =vDpm,  
! $$*0bRfd4=  
TIMER wRq f'  
! >SS^qjh/  
! The delta controls how many rays will be traced. A Yp8XZ3  
! delta of .025 will trace a 80 x 80 grid in the pupil. yVJ)JhV  
! u'gsIuRJ  
delta = .025 *OHjw;xm+  
! f9hH{(A  
print "This program computes the chief ray coordinates," |/Y!R>El  
print "centroid coordinates, and middle coordinates for" iR8;^C.aT  
print "the primary wave spot at each field position." Q
8h=2YL  
maxfield = maxf() ie7TO{W  
if maxfield == 0 then maxfield = 1 ej&o,gX  
n = nsur() H>"P]Y)oX  
f = 1 q!q=axfMD  
label 1 AboRuHQ  
hx = fldx(f)/maxfield V;P*/ke  
hy = fldy(f)/maxfield KqNsCT+j  
raytrace hx,hy,0,0 ^,[gO#hgz  
format 10.4 z^y -A?  
print q~X}&}UT  
print "  X Field    = ", fldx(f), zOJz
QZ~  
print "  Y Field    = ", fldy(f) db3.X~Cn#s  
print "  X Chief    = ",rayx(n), 2%MS$Fto  
print "  Y Chief    = ",rayy(n) 3ZvQUH/{W  
xraymax = -9e9 zP/SDW  
yraymax = -9e9 U;g
y4rj  
xraymin =  9e9 9Z3Vf[n5\  
yraymin =  9e9 JqEo~]E]  
xraytot = 0 "tj]mij2)G  
yraytot = 0 fv
G4K(  
numray = 0 ;@n/gU  
numrayattempt = 0 Kn2W{*wD  
px = -1 - delta 6*I=% H|  
label 2 tcI Z 2H%  
px = px + delta aDE}'d1qo  
py = -1 - delta <u  
label 3 VY0-18 o  
py = py + delta nrM-\'  
rad = px*px + py*py j3>&Su>H4  
if rad <= 0.9999999 g=Nde2d?  
        raytrace hx, hy, px, py lnV!Xuf  
        numrayattempt = numrayattempt+1 "2T* w~V&y  
        if !rayv(n)                                              **************************** @^HZTuP2;  
                numray = numray + 1 lW]&a"1$  
                x = rayx(n) T3-/+4$0v  
                y = rayy(n) K
{FBrh  
                if (x < xraymin) then xraymin = x |;YDRI  
                if (x > xraymax) then xraymax = x 0X%#9s~  
                if (y < yraymin) then yraymin = y p,\(j  
                if (y > yraymax) then yraymax = y gNh4c{Al9  
                xraytot = xraytot + x F_V/&OV  
                yraytot = yraytot + y 
xB}B1H%  
        endif cn'rBY  
endif *C^TCyBK;  
if py < 1.0 then goto 3 hr g'Z5n  
if px < 1.0 then goto 2 jYW-}2L  
if numray Gk|T1%  
        format 14.8 Qr~yHFc1y  
        print "  X Centroid = ",xraytot/numray, dAjm4F-  
        print "  Y Centroid = ",yraytot/numray lK#uyag  
        print "  X Middle   = ",(xraymax+xraymin)/2, "}uV=y  
        print "  Y Middle   = ",(yraymax+yraymin)/2 o7yvXrpG(U  
        format .0 ; VQ:\fG  
        print "  ",numray, " out of ", numrayattempt," rays made it through." ~vfPsaRh  
else N$cAX^~  
        print "  No rays made it through!" kO,vHg$  
endif DF"*[]^[  
f=f+1 .y#>mXm>  
if f<= nfld() then goto 1 IZxr;\dq6  
print 7#9fcfL  
print "All field positions done!" No]#RvEd3  
FORMAT 0.1 *(nu0  
print "Elapsed time ", ETIM(), " seconds." CbT ;#0  

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 Qy) -gax:,  
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 o$,e#q)8  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  l%MIna/Tp  

Blv@u?  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 :<>=,`vQD