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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············· B {>7-0  
    {;2PL^i  
    macro 正文:········· 7Op>i,HZk\  
    ! centroid.zpl /'/Xvm3  
    ! 5 sX+~Q  
    ! Written by Kenneth Moore 9/1/92 0)gdB'9V_  
    ! Added TIMER function 4/18/96 'dn]rV0(C  
    ! ff^=Ruf$  
    TIMER ~sh`r{0  
    ! #{;k{~;PF  
    ! The delta controls how many rays will be traced. A Abc)i7!.,.  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. ')cMiX\v  
    ! ;0Tx-8l  
    delta = .025 HAa; hb  
    ! yK=cZw%D  
    print "This program computes the chief ray coordinates," c24dSNJg,  
    print "centroid coordinates, and middle coordinates for" $&n=$C&x  
    print "the primary wave spot at each field position." r8RoE`/T  
    maxfield = maxf() qv!2MUw\j  
    if maxfield == 0 then maxfield = 1 cz8T  
    n = nsur() 2GDD!w#!j  
    f = 1 GB=X5<;  
    label 1 M<v%CawS  
    hx = fldx(f)/maxfield @J/K-.r  
    hy = fldy(f)/maxfield n"c[,k+R`U  
    raytrace hx,hy,0,0 H*PSR  
    format 10.4 WvY? +JXJ  
    print 50S&m+4d+  
    print "  X Field    = ", fldx(f),  R[D{|K@"  
    print "  Y Field    = ", fldy(f) GBPo8L"9  
    print "  X Chief    = ",rayx(n), 1G^`-ri6  
    print "  Y Chief    = ",rayy(n) &OH={Au  
    xraymax = -9e9 X4~y7  
    yraymax = -9e9 Fj2BnM3#  
    xraymin =  9e9 cQ R]le %(  
    yraymin =  9e9 _uy44; zq  
    xraytot = 0 f6&iy$@   
    yraytot = 0 W*2BT z  
    numray = 0 u7>],<  
    numrayattempt = 0 ig/xv  
    px = -1 - delta m;GCc8  
    label 2 zHM(!\8K  
    px = px + delta Pd_U7&w,5  
    py = -1 - delta L0TFo_  
    label 3 iv J@=pd)B  
    py = py + delta SE1=>S%p  
    rad = px*px + py*py qm/22:&v5  
    if rad <= 0.9999999 k_rt&}e+Gi  
            raytrace hx, hy, px, py |ATvS2  
            numrayattempt = numrayattempt+1 D2Kp|F;  
            if !rayv(n)                                              **************************** g}1B;zGf  
                    numray = numray + 1 ,l\- xSM  
                    x = rayx(n) G[uK-U  
                    y = rayy(n) h-`?{k&e  
                    if (x < xraymin) then xraymin = x #lL^?|M  
                    if (x > xraymax) then xraymax = x @@Kp67Iv  
                    if (y < yraymin) then yraymin = y 3YOq2pW72G  
                    if (y > yraymax) then yraymax = y TrEu'yxy8*  
                    xraytot = xraytot + x vXrx{5gz  
                    yraytot = yraytot + y y51e%n$  
            endif dO! kk"qn  
    endif ?]_$Dcmx  
    if py < 1.0 then goto 3 -b9\=U[  
    if px < 1.0 then goto 2 BYL)nCc  
    if numray /[ 5gX^A  
            format 14.8 61C7.EZZ;  
            print "  X Centroid = ",xraytot/numray, l[0RgO*S  
            print "  Y Centroid = ",yraytot/numray PR#exm&  
            print "  X Middle   = ",(xraymax+xraymin)/2, #wwH m3  
            print "  Y Middle   = ",(yraymax+yraymin)/2 {HltvO%8  
            format .0 X!TpYUZ '  
            print "  ",numray, " out of ", numrayattempt," rays made it through." Q4#m\KK;i9  
    else LM<qT-/qs  
            print "  No rays made it through!" l*Gvf_UH  
    endif &R'c.  
    f=f+1 O`IQ(,yef  
    if f<= nfld() then goto 1 P^ ~yzI  
    print _^Ubs>d=*  
    print "All field positions done!" itt3.:y  
    FORMAT 0.1 JE "x  
    print "Elapsed time ", ETIM(), " seconds." 5IGX5x  
     
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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 @Md/Q~>  
    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 8OU\V5i[,q  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  ea 'D td  
    oD .Cs'  
    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 lt8|9"9<