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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············· Xoq -  
    bXM&VW?OP  
    macro 正文:········· T$DFTr\\  
    ! centroid.zpl ( p CU:'"  
    ! e!k4Ij-]  
    ! Written by Kenneth Moore 9/1/92 [*H h6  
    ! Added TIMER function 4/18/96 ^%U`|GBZp  
    ! Cs vwc%  
    TIMER =|c7#GaiF  
    ! (K ]wk9a  
    ! The delta controls how many rays will be traced. A gla'urb[i|  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. ij}{H#0S-  
    ! VEL!-e^X&  
    delta = .025 Hr}\-$  
    ! 4~vn%O6n  
    print "This program computes the chief ray coordinates," LF:~& m  
    print "centroid coordinates, and middle coordinates for" P|;v>  
    print "the primary wave spot at each field position." TTo?BVBK  
    maxfield = maxf() M@pF[J/  
    if maxfield == 0 then maxfield = 1 '+GYw$  
    n = nsur() 16~5;u  
    f = 1 jS#YqVuN  
    label 1 *oh,Va  
    hx = fldx(f)/maxfield &TN.6Hm3  
    hy = fldy(f)/maxfield ?'tFTh  
    raytrace hx,hy,0,0 !<h-2YF<M  
    format 10.4 4~d:@Gmk&  
    print iqWkhJphv  
    print "  X Field    = ", fldx(f), uy|]@|J  
    print "  Y Field    = ", fldy(f) T7?z0DKi  
    print "  X Chief    = ",rayx(n), ,L\KS^>  
    print "  Y Chief    = ",rayy(n) 6>b#nFVJ  
    xraymax = -9e9 7G Jhc  
    yraymax = -9e9 )[E7\pc  
    xraymin =  9e9 W$gjcsv  
    yraymin =  9e9 ,K.Wni#m  
    xraytot = 0 *M$$%G(4  
    yraytot = 0 1CUI6@Cz)  
    numray = 0 Xw162/:h  
    numrayattempt = 0 }C JK9*Z  
    px = -1 - delta 0p*Oxsy  
    label 2 SU.$bsu  
    px = px + delta wZj`V_3  
    py = -1 - delta e "Tr0k  
    label 3 Q_k'7Z\g$  
    py = py + delta Bv 7os3xb  
    rad = px*px + py*py &sJ6k/l  
    if rad <= 0.9999999 b>& 3 XDz  
            raytrace hx, hy, px, py [E qZj/  
            numrayattempt = numrayattempt+1 @8cn<+"b  
            if !rayv(n)                                              **************************** }e>OmfxDBt  
                    numray = numray + 1 *M6j)jqV  
                    x = rayx(n) ]1q`N7  
                    y = rayy(n) Ed#Hilk'  
                    if (x < xraymin) then xraymin = x cfc=a  
                    if (x > xraymax) then xraymax = x X09i+/ICK  
                    if (y < yraymin) then yraymin = y %(r.`I$  
                    if (y > yraymax) then yraymax = y }l5Q0'  
                    xraytot = xraytot + x aOmQ<N]a  
                    yraytot = yraytot + y w!Ii   
            endif 85:mh\@-G  
    endif ,,h>_IA  
    if py < 1.0 then goto 3 22EI`}"J  
    if px < 1.0 then goto 2 8HWEObRY  
    if numray NLev(B:OQH  
            format 14.8 j Oxnf%jl  
            print "  X Centroid = ",xraytot/numray, j__l'?s  
            print "  Y Centroid = ",yraytot/numray ?|GwuG8g  
            print "  X Middle   = ",(xraymax+xraymin)/2, I%mGb$ Q  
            print "  Y Middle   = ",(yraymax+yraymin)/2 X $SXDb~G  
            format .0 "l(<<Ha/  
            print "  ",numray, " out of ", numrayattempt," rays made it through." wf~n>e^e  
    else ca:Vdrw`  
            print "  No rays made it through!" n?v$C:jLN  
    endif k.%FGn'fR  
    f=f+1 8@KGc )k  
    if f<= nfld() then goto 1 b Kr73S9  
    print &M #}?@!C  
    print "All field positions done!" 4B Jw+EV8  
    FORMAT 0.1 or[!C %  
    print "Elapsed time ", ETIM(), " seconds." %)y-BdSp.  
     
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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 .s3y^1C  
    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 S.*LsrSV  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  N$<R6DU]K  
    4ms"mIt  
    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 rYrvd[/*&(