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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············· TCYjj:/  
    6+u}'mSj8  
    macro 正文:········· _tTtq/z<  
    ! centroid.zpl /{vv n  
    ! mnZ/rb  
    ! Written by Kenneth Moore 9/1/92 td%]l1  
    ! Added TIMER function 4/18/96 6*8"?S'  
    ! O]>9\!0{  
    TIMER :0|]cHm  
    ! Tqz{{]%j~$  
    ! The delta controls how many rays will be traced. A S 1sNVW  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. U\a.'K50F  
    ! #_0OYL`(mE  
    delta = .025 nd*9vxM  
    ! {G&*\5W  
    print "This program computes the chief ray coordinates," `WQz_}TqB  
    print "centroid coordinates, and middle coordinates for" fgIzT!fyz  
    print "the primary wave spot at each field position." 1wP#?p)c  
    maxfield = maxf() =cI -<0QSn  
    if maxfield == 0 then maxfield = 1 S&_Z,mT./  
    n = nsur() 2 eo]D?}  
    f = 1 Vp{! Ft8>  
    label 1 xS?[v&"2  
    hx = fldx(f)/maxfield \ofWD{*j  
    hy = fldy(f)/maxfield !2R~/Rg  
    raytrace hx,hy,0,0 d 4w+5H" u  
    format 10.4 )'3(=F$+l  
    print ]Q1?Ox:'  
    print "  X Field    = ", fldx(f), 1Q"w)Ta  
    print "  Y Field    = ", fldy(f) d.Wq@(ZoA  
    print "  X Chief    = ",rayx(n), $*w]]b$Dn  
    print "  Y Chief    = ",rayy(n) cK4Q! l6O  
    xraymax = -9e9 0NrUB  
    yraymax = -9e9 2z+Vt_%  
    xraymin =  9e9 >]K:lJ]l  
    yraymin =  9e9 VM=A#}  
    xraytot = 0 %EkV-%o*  
    yraytot = 0 ,{==f7|w  
    numray = 0 >a/]8A  
    numrayattempt = 0 q-gp;Fm  
    px = -1 - delta dz@L}b*  
    label 2 HwfBbWHr'  
    px = px + delta L c4\i  
    py = -1 - delta .<&o,D  
    label 3 Ey<vvZ  
    py = py + delta 9RA~#S|(T  
    rad = px*px + py*py C".nB12  
    if rad <= 0.9999999 [Q+8Ku  
            raytrace hx, hy, px, py  h0}r#L  
            numrayattempt = numrayattempt+1 /$ Gp<.z  
            if !rayv(n)                                              **************************** F/,K8<|r>  
                    numray = numray + 1 &Ui*w%  
                    x = rayx(n) wJ#fmQXKJ5  
                    y = rayy(n) Mh [TZfV  
                    if (x < xraymin) then xraymin = x lh^-L+G:Ok  
                    if (x > xraymax) then xraymax = x ) H=}bqn  
                    if (y < yraymin) then yraymin = y u'Ja9m1  
                    if (y > yraymax) then yraymax = y vEQw`OC  
                    xraytot = xraytot + x ^w]N#%k\H  
                    yraytot = yraytot + y PNy)TqdRS  
            endif 3j<:g%5  
    endif 1eQfc{[g  
    if py < 1.0 then goto 3 |NuX9!S  
    if px < 1.0 then goto 2 aY`qbJy  
    if numray .U}"ONd9e  
            format 14.8 ;MRK*sfw{  
            print "  X Centroid = ",xraytot/numray, 8 KDF*%7'  
            print "  Y Centroid = ",yraytot/numray ;Q*=AW  
            print "  X Middle   = ",(xraymax+xraymin)/2, Cka&b  
            print "  Y Middle   = ",(yraymax+yraymin)/2 MR4e.+#E  
            format .0 2XoFmV),F  
            print "  ",numray, " out of ", numrayattempt," rays made it through." : L}Fm2^  
    else }E[u" @}  
            print "  No rays made it through!" U~9Y9qzy,  
    endif wxC&KrRF  
    f=f+1 R(YhVW_l  
    if f<= nfld() then goto 1 /mS|Byx  
    print '+?L/|'  
    print "All field positions done!" M"XILNV-~  
    FORMAT 0.1 i;:gBNmo=  
    print "Elapsed time ", ETIM(), " seconds." +=.>9  
     
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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 #eRrVjbo  
    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 '3i,^g0?t0  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  _ww>u""B~  
    *dAQ{E(rO  
    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 /ucS*m:<x