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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············· bf9LR1  
    . fZ*N/  
    macro 正文:········· :cx}I  
    ! centroid.zpl +W{ELdup%q  
    ! 6xFvu7L_c;  
    ! Written by Kenneth Moore 9/1/92 :E$<!q  
    ! Added TIMER function 4/18/96 \NIj&euF  
    ! OPYl#3I  
    TIMER x *p>l !  
    ! Sqt '}  
    ! The delta controls how many rays will be traced. A m^6& !`CD  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. ?b}d"QsmU  
    ! @k"Q e&BQ  
    delta = .025 {6V;$KqH6  
    ! z2EZ0vZ  
    print "This program computes the chief ray coordinates," GI]sE]tZ  
    print "centroid coordinates, and middle coordinates for" x/Nh9hh"  
    print "the primary wave spot at each field position." 9KqN .  
    maxfield = maxf() '+@q  
    if maxfield == 0 then maxfield = 1 n0/H2>I[  
    n = nsur() e@Cv')]B  
    f = 1 Jp'XZ]o\  
    label 1 "ggViIOw&  
    hx = fldx(f)/maxfield I04GQql  
    hy = fldy(f)/maxfield {giKC)!  
    raytrace hx,hy,0,0 -uE2h[X|  
    format 10.4 __F?iRrCM  
    print 1$Jria5n  
    print "  X Field    = ", fldx(f), X^2Txm d  
    print "  Y Field    = ", fldy(f) `oDs]90  
    print "  X Chief    = ",rayx(n), /b$0).fj@,  
    print "  Y Chief    = ",rayy(n) iyj,0T  
    xraymax = -9e9 R<5GG|(B  
    yraymax = -9e9 hI&ugdf  
    xraymin =  9e9 n$jOk |W  
    yraymin =  9e9 zK*zT$<l  
    xraytot = 0 2 /rDi  
    yraytot = 0 5tSR2gG#K,  
    numray = 0 AGH7z  
    numrayattempt = 0 d]kP@flOV  
    px = -1 - delta M[;N6EJH  
    label 2 5W T^;J9V  
    px = px + delta GzC=xXON  
    py = -1 - delta zF%'~S0{  
    label 3 gK`o ;` ^  
    py = py + delta 4 ^=qc99  
    rad = px*px + py*py W7j-siWJ  
    if rad <= 0.9999999 j.'Rm%@u  
            raytrace hx, hy, px, py oj8_e xx  
            numrayattempt = numrayattempt+1 iva?3.t  
            if !rayv(n)                                              **************************** e)(m0m\  
                    numray = numray + 1 gwf *M3(  
                    x = rayx(n) fn!(cE|`E  
                    y = rayy(n) ?gq',F FDq  
                    if (x < xraymin) then xraymin = x <Z$r\Huf  
                    if (x > xraymax) then xraymax = x yNVmTb9mF  
                    if (y < yraymin) then yraymin = y _cWz9 ;  
                    if (y > yraymax) then yraymax = y X5(S+;v"^  
                    xraytot = xraytot + x 4f}:)M$5  
                    yraytot = yraytot + y <`'^rCWI?  
            endif BQs~>}(V  
    endif A3\%t@y  
    if py < 1.0 then goto 3 L>,j*a_[  
    if px < 1.0 then goto 2 ylV.ZoY6  
    if numray D<.zdTo  
            format 14.8 f9Vxtd  
            print "  X Centroid = ",xraytot/numray, z%F68 f73  
            print "  Y Centroid = ",yraytot/numray uSAb  
            print "  X Middle   = ",(xraymax+xraymin)/2, #ny&bJj  
            print "  Y Middle   = ",(yraymax+yraymin)/2 YivWvV  
            format .0 DeMF<)#  
            print "  ",numray, " out of ", numrayattempt," rays made it through." g_2m["6*  
    else C:]&V*d.v4  
            print "  No rays made it through!" ][ ,NNXrc&  
    endif ?89ZnH2/  
    f=f+1 jq4'=L$4  
    if f<= nfld() then goto 1 =<_ei|ME  
    print ";)SA,Z  
    print "All field positions done!" D92#&,KD  
    FORMAT 0.1 w|"cf{$^x  
    print "Elapsed time ", ETIM(), " seconds." OMr&f8  
     
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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 =Yxu {]G  
    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 l \=M'D  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  B!vI^W  
    t^h {D   
    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 |V2+4b,