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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············· -R'p^cMA  
    nu0bJ:0aLd  
    macro 正文:········· /&j4IlT  
    ! centroid.zpl (&MSP  
    ! GIVs)~/Eq  
    ! Written by Kenneth Moore 9/1/92 ,P"R.A  
    ! Added TIMER function 4/18/96 0h shHv-  
    ! TjI NxP-O  
    TIMER 0HD1Ob^@  
    ! MF\n@lX  
    ! The delta controls how many rays will be traced. A z3*G(,  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. P'9aZd  
    ! J#V `W&\,6  
    delta = .025 IVNNiNN*5  
    ! ?XOeMI  
    print "This program computes the chief ray coordinates," h/TPd]  
    print "centroid coordinates, and middle coordinates for" ^}1RDdQ"U  
    print "the primary wave spot at each field position." g41Lh3dj  
    maxfield = maxf() 1yB;"q&Xd  
    if maxfield == 0 then maxfield = 1 "(efd~.]  
    n = nsur() NuO>zAu  
    f = 1 MZjiJZaO:L  
    label 1 ,IJNuu\  
    hx = fldx(f)/maxfield 6vaxp|D  
    hy = fldy(f)/maxfield c?R.SBr,'  
    raytrace hx,hy,0,0 _&%!4n#>  
    format 10.4 J$I1 *~I4v  
    print o mjLQp[%  
    print "  X Field    = ", fldx(f), E7eVg*Cvi  
    print "  Y Field    = ", fldy(f) [d&Faa[`  
    print "  X Chief    = ",rayx(n), {hg$?4IyQ  
    print "  Y Chief    = ",rayy(n) j=AJs<  
    xraymax = -9e9 lwg.'<  
    yraymax = -9e9 C(0Iv[~y/  
    xraymin =  9e9 Zj7XmkL  
    yraymin =  9e9 b/K&8C,c  
    xraytot = 0 %xZ.+Ff%  
    yraytot = 0 {H+?DMh  
    numray = 0 fcZOsTj  
    numrayattempt = 0 Nz}Q"6L  
    px = -1 - delta AX,Db%`l,  
    label 2 Ys_YjlMIbl  
    px = px + delta ;Z`)*TRp4  
    py = -1 - delta |TUpv*pq  
    label 3 {PVu3 W  
    py = py + delta :> q?s  
    rad = px*px + py*py G2^DukK.  
    if rad <= 0.9999999 #] GM#.  
            raytrace hx, hy, px, py j>b OnCp~  
            numrayattempt = numrayattempt+1 >@L HJ61C  
            if !rayv(n)                                              **************************** `P5"5N\h  
                    numray = numray + 1 u9gr@06  
                    x = rayx(n)  XGoy#h  
                    y = rayy(n) {;}8Z$  
                    if (x < xraymin) then xraymin = x f!J^vDl  
                    if (x > xraymax) then xraymax = x $F-XXBp  
                    if (y < yraymin) then yraymin = y \S<5b&G  
                    if (y > yraymax) then yraymax = y aOD"z7}U  
                    xraytot = xraytot + x y%,BDyK  
                    yraytot = yraytot + y \Cs<'(=  
            endif Qm.kXlsDI  
    endif 1}uDgz^  
    if py < 1.0 then goto 3 * Z:PB%d5  
    if px < 1.0 then goto 2 E nvs[YZe  
    if numray !:t9{z{Ixg  
            format 14.8 'oHR4O*  
            print "  X Centroid = ",xraytot/numray, gCJ'wv)6|%  
            print "  Y Centroid = ",yraytot/numray }gW}Vr <  
            print "  X Middle   = ",(xraymax+xraymin)/2, ;9PM?Iy[  
            print "  Y Middle   = ",(yraymax+yraymin)/2 UH.cn|R  
            format .0 %yMzgk[u  
            print "  ",numray, " out of ", numrayattempt," rays made it through." dvD<>{U,8  
    else SHk[X ]Uo  
            print "  No rays made it through!" f$>orVm%.  
    endif /( V=Um^0  
    f=f+1 4PWr;&  
    if f<= nfld() then goto 1 yx2.7h3  
    print v/czW\z  
    print "All field positions done!" jVINc=o  
    FORMAT 0.1 &FrB6 y  
    print "Elapsed time ", ETIM(), " seconds." QRlzGRueR&  
     
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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 5Mr;6 ]I<  
    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 kqigFcz!Y  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  Xb@z7X#O!  
    &tz%WW%D8  
    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 E0)mI)RW.