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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············· 9PCa*,  
    bZK+9IR  
    macro 正文:·········  kMqD iJ  
    ! centroid.zpl qkiJ HT  
    ! *f?S5 .  
    ! Written by Kenneth Moore 9/1/92 [xWEf#', !  
    ! Added TIMER function 4/18/96 S_j1=6 #^  
    ! b.@H1L  
    TIMER |[DV\23{G  
    ! pOX$4$VR<  
    ! The delta controls how many rays will be traced. A {9Db9K^  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. D|[/>x  
    ! m}rh|x/?  
    delta = .025 Vv2{^ !aZ  
    ! L2<+#O#  
    print "This program computes the chief ray coordinates," @OY1`Eu O  
    print "centroid coordinates, and middle coordinates for" [' ?^>jfr  
    print "the primary wave spot at each field position." tz"5+uuu  
    maxfield = maxf() A%P 8c  
    if maxfield == 0 then maxfield = 1 Z~:/#?/  
    n = nsur() T<XfZZ)l<`  
    f = 1 t[/\KG8  
    label 1 Kyu@>9Ok  
    hx = fldx(f)/maxfield ^uM_b  
    hy = fldy(f)/maxfield 0c`sb+?  
    raytrace hx,hy,0,0 Lblet  
    format 10.4 I7A7X*  
    print %-\FVKX  
    print "  X Field    = ", fldx(f), }+*w.X}L  
    print "  Y Field    = ", fldy(f) 2.!1kije  
    print "  X Chief    = ",rayx(n), f_~}X#._  
    print "  Y Chief    = ",rayy(n) FLK"|*A  
    xraymax = -9e9 @J kui  
    yraymax = -9e9 GA(OK-WUd  
    xraymin =  9e9 ,n^TN{#  
    yraymin =  9e9 eSJAPU(D  
    xraytot = 0 #dHr&1(  
    yraytot = 0 =.VepX|?D  
    numray = 0 KBd7|,j  
    numrayattempt = 0 \moZ6J  
    px = -1 - delta sWp{Y.  
    label 2 =_K%$y*  
    px = px + delta i<'{Y  
    py = -1 - delta Tavtr9L0XY  
    label 3 j~X j  
    py = py + delta 'uws  
    rad = px*px + py*py 9)#gtDM%J  
    if rad <= 0.9999999 7ytm .lU  
            raytrace hx, hy, px, py Xs{/}wc.q;  
            numrayattempt = numrayattempt+1 bta0? O #  
            if !rayv(n)                                              **************************** k,a,h^{}j  
                    numray = numray + 1 YN_X0+b3C  
                    x = rayx(n) ]lymY _ >  
                    y = rayy(n) (qNco8QKu3  
                    if (x < xraymin) then xraymin = x xWd9%,mDNR  
                    if (x > xraymax) then xraymax = x (r.$%[,.<  
                    if (y < yraymin) then yraymin = y #Y/97_2 xa  
                    if (y > yraymax) then yraymax = y zfM<x,XdY  
                    xraytot = xraytot + x |3s.;w K  
                    yraytot = yraytot + y LBW.*PHW  
            endif E6,`Ld;c[  
    endif Kh>?!` lL  
    if py < 1.0 then goto 3 Vww@eK%5Q  
    if px < 1.0 then goto 2 bv.EM  
    if numray QBg}2.  
            format 14.8 (k7;  
            print "  X Centroid = ",xraytot/numray, $ iX^p4v  
            print "  Y Centroid = ",yraytot/numray 6lB{Ao?|  
            print "  X Middle   = ",(xraymax+xraymin)/2, ~r(g|?}P  
            print "  Y Middle   = ",(yraymax+yraymin)/2 *=($r%)  
            format .0 113Z@F  
            print "  ",numray, " out of ", numrayattempt," rays made it through." (2\li{$e  
    else *O2^{ C  
            print "  No rays made it through!" trID#DT~  
    endif {Bav$kw;?e  
    f=f+1 'e+-,CGdY\  
    if f<= nfld() then goto 1 !X \Sp}  
    print 4v rm&k  
    print "All field positions done!" [X0k{FR  
    FORMAT 0.1 Z\ "Kd  
    print "Elapsed time ", ETIM(), " seconds." BZ]&uD|f  
     
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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 -ucz+{  
    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 QtO[g  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  }!J/ 9WKgU  
    6=[ PJM  
    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 @rDv (W