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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············· v;2CU  
    Y "jE'  
    macro 正文:········· 5>_5]t {  
    ! centroid.zpl J7$_VP  
    ! 4[2_,9}  
    ! Written by Kenneth Moore 9/1/92 X@wm1{!  
    ! Added TIMER function 4/18/96 a \5FAkI  
    ! vZAv_8S)  
    TIMER &X>7n~@0  
    ! (/{aJV  
    ! The delta controls how many rays will be traced. A 6^F '|Wh  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. \=2m7v#E  
    ! 9<1F[SS<s9  
    delta = .025 wa09$4>_w  
    ! %&blJ6b  
    print "This program computes the chief ray coordinates," v ! hY  
    print "centroid coordinates, and middle coordinates for" kI\tqNJi  
    print "the primary wave spot at each field position." x~DLW1I  
    maxfield = maxf() !u|Tu4G^  
    if maxfield == 0 then maxfield = 1 }F=^O[  
    n = nsur() 6z,Dyy]tl  
    f = 1 y-aRXF=W  
    label 1 ?A*Kg;IU  
    hx = fldx(f)/maxfield oOU1{[  
    hy = fldy(f)/maxfield J ++v@4Z  
    raytrace hx,hy,0,0 ^rAa"p9  
    format 10.4 Ty4S~ClO#'  
    print _F(P*[[&  
    print "  X Field    = ", fldx(f), c-1q2y  
    print "  Y Field    = ", fldy(f) #?O &  
    print "  X Chief    = ",rayx(n), NTs7KSgZ  
    print "  Y Chief    = ",rayy(n) ]7GlO9  
    xraymax = -9e9 eny/ fm  
    yraymax = -9e9 @_ygnNn4R  
    xraymin =  9e9 n{5NNV6  
    yraymin =  9e9 )r6EW`$  
    xraytot = 0 ~f>2U]F>5  
    yraytot = 0 s|yVAt|=  
    numray = 0 wTq{sW&  
    numrayattempt = 0 8F5|EpB9M  
    px = -1 - delta 47By`Jh71  
    label 2 s'HD{W`  
    px = px + delta m]Y;c_DO:  
    py = -1 - delta ?;ukvD  
    label 3 k#>hg#G  
    py = py + delta zd %rs~*c  
    rad = px*px + py*py #(;<-7M2  
    if rad <= 0.9999999 dbdM"z 4  
            raytrace hx, hy, px, py } (FPV*mS  
            numrayattempt = numrayattempt+1 k-LEI}h  
            if !rayv(n)                                              **************************** ~W0(1# i  
                    numray = numray + 1 aE VsU|  
                    x = rayx(n) ,T{<vRj7_  
                    y = rayy(n) wVl+]zB  
                    if (x < xraymin) then xraymin = x b0<o  
                    if (x > xraymax) then xraymax = x W#w.h33)#6  
                    if (y < yraymin) then yraymin = y F3U`ueP  
                    if (y > yraymax) then yraymax = y c@(&[/q!  
                    xraytot = xraytot + x K!z`  
                    yraytot = yraytot + y ^-)txC5{T  
            endif %8.J=B  
    endif ]2SF9p_  
    if py < 1.0 then goto 3 AG6K daJ  
    if px < 1.0 then goto 2 {d3<W N  
    if numray )Di \_/G  
            format 14.8 I s57F4[}  
            print "  X Centroid = ",xraytot/numray, PgM(l3x  
            print "  Y Centroid = ",yraytot/numray k\r(=cex6  
            print "  X Middle   = ",(xraymax+xraymin)/2, !vD{Df>  
            print "  Y Middle   = ",(yraymax+yraymin)/2 :\ QUs}  
            format .0 H U+ I  
            print "  ",numray, " out of ", numrayattempt," rays made it through." _RkuBOv@e  
    else Z=S>0|`R  
            print "  No rays made it through!" s0u{d qP  
    endif Y'VBz{brf  
    f=f+1 ^]C&tG0 !  
    if f<= nfld() then goto 1 ->{d`-}m'  
    print xG2F!WeF  
    print "All field positions done!" kJ:F *34e=  
    FORMAT 0.1 ksR1k vTm  
    print "Elapsed time ", ETIM(), " seconds." bO5k6i  
     
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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 YGvUwj'2a  
    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 %%ae^*[!n  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  q-ES6R  
    J~B 7PW  
    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 m@`8A