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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············· R8HFyP  
    "h "vp&A  
    macro 正文:········· hGsY u)  
    ! centroid.zpl %NvY~,  
    ! kp[Jl0K5  
    ! Written by Kenneth Moore 9/1/92 J( 0c#}d  
    ! Added TIMER function 4/18/96 i]P]o)  
    ! y&UsSS  
    TIMER [ACa<U/  
    ! ]c08`  
    ! The delta controls how many rays will be traced. A bFcI\Q{4  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. ;X8eZQ  
    ! *cf#:5Nl  
    delta = .025 vV%w#ULxE~  
    ! [L:,A{rve  
    print "This program computes the chief ray coordinates," -{HA+YL H  
    print "centroid coordinates, and middle coordinates for" _T1|_9b  
    print "the primary wave spot at each field position." :p89J\  
    maxfield = maxf() D ,nF0p  
    if maxfield == 0 then maxfield = 1 [j) :2  
    n = nsur() _di[PU=Vh  
    f = 1 \]zH M.E1  
    label 1 $. Ih-  
    hx = fldx(f)/maxfield V V<Zl  
    hy = fldy(f)/maxfield iNcB6,++  
    raytrace hx,hy,0,0 %5'6^bT  
    format 10.4 Wh,p$|vL  
    print H?PaN)_6-+  
    print "  X Field    = ", fldx(f), @,$>H 7o  
    print "  Y Field    = ", fldy(f) opd^|xx0  
    print "  X Chief    = ",rayx(n), ->d 3FR  
    print "  Y Chief    = ",rayy(n) Mp}U>+8  
    xraymax = -9e9 s$A|>TOY  
    yraymax = -9e9 [:Sl^ Z&6M  
    xraymin =  9e9 :M3Fq@w=  
    yraymin =  9e9 g/eE^o ~;  
    xraytot = 0 A2..gs/  
    yraytot = 0 Q/I/>6M7UZ  
    numray = 0 r3'0{Nn+  
    numrayattempt = 0 K1Mn_)%  
    px = -1 - delta "d% o%  
    label 2 ?g}G#j  
    px = px + delta 05Ak[OOU>  
    py = -1 - delta w=,bF$:fIW  
    label 3 C h>r.OfP  
    py = py + delta EjrK.|I0  
    rad = px*px + py*py :wtK'ld  
    if rad <= 0.9999999 Dc2H<=];  
            raytrace hx, hy, px, py nH_M#  
            numrayattempt = numrayattempt+1 F P3{Rp  
            if !rayv(n)                                              **************************** XU_gvz  
                    numray = numray + 1 h:xvnyaI  
                    x = rayx(n) +87|gC7B  
                    y = rayy(n) 3%P<F>6 J  
                    if (x < xraymin) then xraymin = x Fsz;T;  
                    if (x > xraymax) then xraymax = x Qu|H_<8g  
                    if (y < yraymin) then yraymin = y K|]/BjB/  
                    if (y > yraymax) then yraymax = y \8g'v@$wG  
                    xraytot = xraytot + x u^, eHO  
                    yraytot = yraytot + y :<hM@>eFn  
            endif shKTj5s?  
    endif ^VOFkUp)  
    if py < 1.0 then goto 3 =bgWUu\F  
    if px < 1.0 then goto 2 ]lqLC  
    if numray Qco8m4n  
            format 14.8 tnE),  
            print "  X Centroid = ",xraytot/numray, Kl_(4kQE_  
            print "  Y Centroid = ",yraytot/numray HAwdu1$8  
            print "  X Middle   = ",(xraymax+xraymin)/2, H%pD9'q~  
            print "  Y Middle   = ",(yraymax+yraymin)/2 iSbPOC7  
            format .0 8 kvF~d ;  
            print "  ",numray, " out of ", numrayattempt," rays made it through." 42M_  %l_  
    else >jz9o9?8  
            print "  No rays made it through!" >e^bq/'  
    endif @CMEmgk~  
    f=f+1 xIA]5@;a  
    if f<= nfld() then goto 1 SP.k]@P  
    print S#kYPe  
    print "All field positions done!" [4w*<({*  
    FORMAT 0.1 ,R. rxoO  
    print "Elapsed time ", ETIM(), " seconds." 6%it`A8}  
     
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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 ]~2iducB,  
    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 TKM^  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  P&sWn?q Ol  
    VxBBZsZO~  
    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 sqrLys_S