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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············· *{@Nq=fE  
    :P\7iW  
    macro 正文:········· 69?wc!  
    ! centroid.zpl wj<6kG  
    ! 0hNA1Fh{U  
    ! Written by Kenneth Moore 9/1/92 bv9]\qC]T<  
    ! Added TIMER function 4/18/96 0r] t`{H  
    ! Ae^~Cz1qz  
    TIMER swoQ'  
    ! @=Uh',F  
    ! The delta controls how many rays will be traced. A -.@r#d/  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. eRstD>r  
    ! Z{Qu<vy_  
    delta = .025 }wjw:M  
    ! cLJ$M`e  
    print "This program computes the chief ray coordinates," C12Fl  
    print "centroid coordinates, and middle coordinates for" 6V:U (g  
    print "the primary wave spot at each field position." 9y8&9<#  
    maxfield = maxf() ,GIy q)  
    if maxfield == 0 then maxfield = 1 18d4fR   
    n = nsur() mh{d8<Q2  
    f = 1 :&rt)/I  
    label 1 W$;,CU.v  
    hx = fldx(f)/maxfield ufZDF=$7  
    hy = fldy(f)/maxfield nH'e?>x~e  
    raytrace hx,hy,0,0 _LUhZlw  
    format 10.4 @R"JW\bd  
    print sPQQ"|wU  
    print "  X Field    = ", fldx(f), I-)+bV G  
    print "  Y Field    = ", fldy(f) GPv1fearl  
    print "  X Chief    = ",rayx(n), T|op$ s|  
    print "  Y Chief    = ",rayy(n) x8\?}UnB  
    xraymax = -9e9 S9D<8j^  
    yraymax = -9e9 SC!RbW@3  
    xraymin =  9e9  c(E{6g?  
    yraymin =  9e9 $q{!5-e  
    xraytot = 0 J T7nG.9  
    yraytot = 0 =tn)}Y.<e  
    numray = 0 syj0.JD  
    numrayattempt = 0 o5O#vW2Il&  
    px = -1 - delta \ gGW8Q;  
    label 2 a=1@*ID  
    px = px + delta )5JFfp)#  
    py = -1 - delta 2'\H\|  
    label 3 aQcleTb  
    py = py + delta Xp% v.M  
    rad = px*px + py*py o#gWbAG;]b  
    if rad <= 0.9999999 %y[h5*y*  
            raytrace hx, hy, px, py hJ? O],4J  
            numrayattempt = numrayattempt+1 PO^ij2eS  
            if !rayv(n)                                              **************************** ~2N"#b&J  
                    numray = numray + 1 a :`E0}C  
                    x = rayx(n) 6=/F$|  
                    y = rayy(n) e4_rC'=  
                    if (x < xraymin) then xraymin = x |O+H[;TB6  
                    if (x > xraymax) then xraymax = x 'n]w"]|  
                    if (y < yraymin) then yraymin = y rJT a  
                    if (y > yraymax) then yraymax = y `r':by0M  
                    xraytot = xraytot + x [Ek7b *  
                    yraytot = yraytot + y QXFo1m  
            endif $G+@_'  
    endif ^|>PA:%  
    if py < 1.0 then goto 3 ]Sz:|%JP1  
    if px < 1.0 then goto 2 )[IC?U:5I  
    if numray RJ&RTo  
            format 14.8 MUc$ j&  
            print "  X Centroid = ",xraytot/numray, 7"x;~X  
            print "  Y Centroid = ",yraytot/numray MK~8}x2K  
            print "  X Middle   = ",(xraymax+xraymin)/2, g2ixx+`?|:  
            print "  Y Middle   = ",(yraymax+yraymin)/2 -20bPiM$A  
            format .0  KC6.Fr{  
            print "  ",numray, " out of ", numrayattempt," rays made it through." b3[!V{|  
    else 9T9!kb  
            print "  No rays made it through!" w3_>VIZJl  
    endif 3M7/?TMw{6  
    f=f+1 fOGFq1D  
    if f<= nfld() then goto 1 itP,\k7>d  
    print qgHWUwr+n  
    print "All field positions done!" KYI/  
    FORMAT 0.1 $GcqBg-Hi  
    print "Elapsed time ", ETIM(), " seconds." C2I_%nU Z1  
     
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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 +@f26O7$*  
    的影響,因此須知道漸暈才能算出chief ray位置。
    离线moth
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    只看该作者 2楼 发表于: 2013-01-27
    回 kimclps 的帖子
    kimclps:centroid的chief ray定義為通過光束中心(而非stop中心)的光線,其位置會受漸暈 {;1\+ f  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  8GUX{K  
    %tGO?JMkd  
    Kimclps兄果然学识过人,受教了·····
    离线kimclps
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    只看该作者 3楼 发表于: 2013-01-29
    不敢當,互相切磋。
    离线junel
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    只看该作者 4楼 发表于: 2014-06-21
    受教了 I efn$