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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············· tUH?N/qn  
    0e0)1;t\  
    macro 正文:········· &X:;B'   
    ! centroid.zpl L<=Dl  
    ! | U0s1f  
    ! Written by Kenneth Moore 9/1/92 Szt2 "AR  
    ! Added TIMER function 4/18/96 rtAPkXJFM  
    !  ( y!o  
    TIMER Zfk]Z9YO  
    ! z0LspRaz  
    ! The delta controls how many rays will be traced. A G 3U[)("  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. \;MP|:{pU  
    ! dz+!yE\f$  
    delta = .025 PY_8*~Z  
    ! g|uyQhsg  
    print "This program computes the chief ray coordinates,"  mhrF9&s  
    print "centroid coordinates, and middle coordinates for" B /uaRi%  
    print "the primary wave spot at each field position." BhDg\oxZ  
    maxfield = maxf() &G_#=t&  
    if maxfield == 0 then maxfield = 1 A{;"e^a-^l  
    n = nsur() .g}N@  
    f = 1 M7?ktK9`ma  
    label 1 cdkEK  
    hx = fldx(f)/maxfield yq|yGf(4&  
    hy = fldy(f)/maxfield BAXu\a-C_  
    raytrace hx,hy,0,0 C~4SPCU  
    format 10.4 N{bg-%s10i  
    print  t* Ct*  
    print "  X Field    = ", fldx(f), :z P:4 NW  
    print "  Y Field    = ", fldy(f) (" :Dz_  
    print "  X Chief    = ",rayx(n), >ymn&_zlT  
    print "  Y Chief    = ",rayy(n) ) ??N]V_U  
    xraymax = -9e9 v\dQjQu8m  
    yraymax = -9e9 .*YF{!R`h  
    xraymin =  9e9 7~+Fec`Ut*  
    yraymin =  9e9 ?&9=f\/P  
    xraytot = 0 >ye.rRZd`  
    yraytot = 0 h[qZM  
    numray = 0 ?=4oxPe  
    numrayattempt = 0 F% a&|X  
    px = -1 - delta GdUsv  
    label 2 qdZ ^D  
    px = px + delta }v}F8}4  
    py = -1 - delta ZqrS]i@$  
    label 3  Mj1f;$  
    py = py + delta s"#N;  
    rad = px*px + py*py ^_3Ey  
    if rad <= 0.9999999 ?XdvZf $  
            raytrace hx, hy, px, py `},:dDHI  
            numrayattempt = numrayattempt+1 {1Cnrjw  
            if !rayv(n)                                              **************************** *~ IHVU  
                    numray = numray + 1 Dk sn  
                    x = rayx(n) UfPB-EFl$D  
                    y = rayy(n) )t+pwh!8  
                    if (x < xraymin) then xraymin = x 8D`+3  
                    if (x > xraymax) then xraymax = x Wjq9f;  
                    if (y < yraymin) then yraymin = y J \|~k2~  
                    if (y > yraymax) then yraymax = y p5E okh  
                    xraytot = xraytot + x Hy :x.'i  
                    yraytot = yraytot + y _Jg#T~  
            endif lz>00B<Z  
    endif f=V`Nn<=A  
    if py < 1.0 then goto 3 ~l:Cj*6x8  
    if px < 1.0 then goto 2 U/{t "e  
    if numray 1lIs jBo g  
            format 14.8 yNfj-wM  
            print "  X Centroid = ",xraytot/numray, ):hz /vZ  
            print "  Y Centroid = ",yraytot/numray Z?xaXFm_  
            print "  X Middle   = ",(xraymax+xraymin)/2, ]t!v`TH  
            print "  Y Middle   = ",(yraymax+yraymin)/2 >WZ%Pv *  
            format .0 0vLx={i  
            print "  ",numray, " out of ", numrayattempt," rays made it through." ^_v94!a 9  
    else {J1rjrPo  
            print "  No rays made it through!" 9\?&u_ U"  
    endif  ,d/$!Yf  
    f=f+1 ?;](;n#lU  
    if f<= nfld() then goto 1 T_2'=7  
    print <<S4l~"o  
    print "All field positions done!" )G/=3;!  
    FORMAT 0.1 S+KKGi_e  
    print "Elapsed time ", ETIM(), " seconds." OQ2G2>p  
     
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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 *{5}m(5F  
    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 AsZyPybq  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  Vyx&MU.-J  
    I GcR5/3  
    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 n_] OYG>U