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    只看楼主 倒序阅读 楼主  发表于: 2013-01-19
           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············· Eqz|eS*6  
    ~:7y!=8#  
    macro 正文:········· {24>&<p  
    ! centroid.zpl s=(q#Z  
    ! [?I<$f"  
    ! Written by Kenneth Moore 9/1/92 SkmTW@v  
    ! Added TIMER function 4/18/96 Zw0KV%7hD  
    ! y4h =e~  
    TIMER ptT-{vG  
    ! _|I8+(~)  
    ! The delta controls how many rays will be traced. A 4%~*}  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. we`BqZV  
    ! LJ~#0Zu?  
    delta = .025 lb'tVO  
    ! '[liZCg  
    print "This program computes the chief ray coordinates," a)pc+w#  
    print "centroid coordinates, and middle coordinates for" 07:V[@'  
    print "the primary wave spot at each field position." -V6caVlg  
    maxfield = maxf() w6!97x  
    if maxfield == 0 then maxfield = 1 fub04x)  
    n = nsur() y@~ VE5N  
    f = 1 |8CxMs  
    label 1 OJa(Gds  
    hx = fldx(f)/maxfield <A Hzs  
    hy = fldy(f)/maxfield *4%pXm;  
    raytrace hx,hy,0,0 8b'@_s!_  
    format 10.4 ,M{G X  
    print 6?[P^{GpH  
    print "  X Field    = ", fldx(f), G3^<l0?S  
    print "  Y Field    = ", fldy(f) b-VtQ%Q  
    print "  X Chief    = ",rayx(n), L$_%T  
    print "  Y Chief    = ",rayy(n) ]>(pj9)  
    xraymax = -9e9 .c}+kHv  
    yraymax = -9e9 L#K`F8Wi=  
    xraymin =  9e9 >"!ScYn  
    yraymin =  9e9 ]$L5}pE3  
    xraytot = 0 M;y*`<x  
    yraytot = 0 =9ff9 83  
    numray = 0 a r8iuwfZ  
    numrayattempt = 0 H5Eso*v@  
    px = -1 - delta xAd@.^  
    label 2 ?lD)J?j  
    px = px + delta .o`Io[io  
    py = -1 - delta p*0[:/4  
    label 3 3A`]Rk   
    py = py + delta rc[~S  
    rad = px*px + py*py 7d%x7!E   
    if rad <= 0.9999999 rz_W]/G-P  
            raytrace hx, hy, px, py  :2nsi4  
            numrayattempt = numrayattempt+1 1Mp-)-e  
            if !rayv(n)                                              **************************** KHZ[drb6$  
                    numray = numray + 1 LcvczS T  
                    x = rayx(n) <9X@\uvU.<  
                    y = rayy(n) lj}3TbM  
                    if (x < xraymin) then xraymin = x Lq>lj`>  
                    if (x > xraymax) then xraymax = x \78^ O  
                    if (y < yraymin) then yraymin = y }ZVond$y4  
                    if (y > yraymax) then yraymax = y 4@fv%LOQo  
                    xraytot = xraytot + x RKzty=j4  
                    yraytot = yraytot + y nC,QvV  
            endif W{'hn&vU  
    endif rmA?Xlh\  
    if py < 1.0 then goto 3 F\+AA  
    if px < 1.0 then goto 2 %r1#G.2YW  
    if numray }~zDcj_  
            format 14.8 yC1OeO8{  
            print "  X Centroid = ",xraytot/numray, "dIWHfQB  
            print "  Y Centroid = ",yraytot/numray N,qo/At}R[  
            print "  X Middle   = ",(xraymax+xraymin)/2, /gF)msUF  
            print "  Y Middle   = ",(yraymax+yraymin)/2 5n2!Y\  
            format .0 8WQ#)  
            print "  ",numray, " out of ", numrayattempt," rays made it through." aXj UDu7  
    else wJ2cAX;"  
            print "  No rays made it through!" &v .S_Ym  
    endif X,VI5$  
    f=f+1 hT-^1 :N  
    if f<= nfld() then goto 1 X <8|uP4  
    print 4!{lySW  
    print "All field positions done!" D^O[_/i&  
    FORMAT 0.1 _f@,) n  
    print "Elapsed time ", ETIM(), " seconds." *$%~/Q@]  
     
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    离线kimclps
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    只看该作者 1楼 发表于: 2013-01-24
    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 g^A^@~M  
    的影響,因此須知道漸暈才能算出chief ray位置。
    离线moth
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    只看该作者 2楼 发表于: 2013-01-27
    回 kimclps 的帖子
    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 c(Y~5A{TXO  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  qh>An;:u  
    `_LQs9J0J  
    Kimclps兄果然学识过人,受教了·····
    离线kimclps
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    只看该作者 3楼 发表于: 2013-01-29
    不敢當,互相切磋。
    离线junel
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    只看该作者 4楼 发表于: 2014-06-21
    受教了 Fi+ DG?zu