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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············· GukS =rC9  
    !VJ5(b  
    macro 正文:········· H[a1n' "<:  
    ! centroid.zpl lB0: 4cIj  
    ! -`o22G3w  
    ! Written by Kenneth Moore 9/1/92 rz @;Zn  
    ! Added TIMER function 4/18/96 C/w!Y)nB=  
    ! [aK7v{Wu  
    TIMER 8 )w75+&  
    ! _26~<gU8  
    ! The delta controls how many rays will be traced. A (KF=v31_m  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. oq<n5  
    ! Y^Olcz  
    delta = .025 b:,S  
    ! M@n9i@UsO  
    print "This program computes the chief ray coordinates," QlHxdRK`.  
    print "centroid coordinates, and middle coordinates for" Yb<t~jm  
    print "the primary wave spot at each field position." (\Qk XrK  
    maxfield = maxf() wlM"Zt  
    if maxfield == 0 then maxfield = 1 zMUifMiAj  
    n = nsur() ,KMt9 <  
    f = 1 Q[+o\{ O  
    label 1 lUR7zrwJ]o  
    hx = fldx(f)/maxfield L(yR"A{FsE  
    hy = fldy(f)/maxfield BihXYux*  
    raytrace hx,hy,0,0 nbpGxUF`]  
    format 10.4 k8}*b&+{vz  
    print y3 R+060\3  
    print "  X Field    = ", fldx(f), F|3 =Cl  
    print "  Y Field    = ", fldy(f) u H}cvshv  
    print "  X Chief    = ",rayx(n), 1HF=,K+  
    print "  Y Chief    = ",rayy(n) ?~;8Y=O  
    xraymax = -9e9 .7ZV: m  
    yraymax = -9e9 8}& O7zO?  
    xraymin =  9e9 *)V1Sd#m  
    yraymin =  9e9  vj+x(  
    xraytot = 0 5s >UM@})  
    yraytot = 0 nH#|]gVI  
    numray = 0 R(?g+:eCpM  
    numrayattempt = 0 [,Io!O  
    px = -1 - delta ~"E@do("  
    label 2 oCBZ9PGkK  
    px = px + delta 6dRxfbL  
    py = -1 - delta O43emL3  
    label 3 '\ $2+*  
    py = py + delta qjsS2,wM  
    rad = px*px + py*py *20$u% z2  
    if rad <= 0.9999999 &ggS!y'n  
            raytrace hx, hy, px, py 6iiH+Nc  
            numrayattempt = numrayattempt+1 ,~@Nhd~k  
            if !rayv(n)                                              **************************** .kl _F7  
                    numray = numray + 1 DA5kox&cU  
                    x = rayx(n) jXBAo  
                    y = rayy(n) #|\NG  
                    if (x < xraymin) then xraymin = x H5f>Q0jq  
                    if (x > xraymax) then xraymax = x kvzGI>H:  
                    if (y < yraymin) then yraymin = y %"2 ;i@  
                    if (y > yraymax) then yraymax = y i)Hjmf3  
                    xraytot = xraytot + x m"{D}(TA  
                    yraytot = yraytot + y 73kF=*m  
            endif -.8 nEO3  
    endif n5Ad@Bg  
    if py < 1.0 then goto 3 8y-Sd\0g  
    if px < 1.0 then goto 2 hJavi>374  
    if numray ##gq{hgjb$  
            format 14.8 hrpql_9.  
            print "  X Centroid = ",xraytot/numray, e12.suv  
            print "  Y Centroid = ",yraytot/numray Oy :;v7  
            print "  X Middle   = ",(xraymax+xraymin)/2, x \.q zi  
            print "  Y Middle   = ",(yraymax+yraymin)/2 vZHm'  
            format .0 CS;bm `8a  
            print "  ",numray, " out of ", numrayattempt," rays made it through." }u=-Y'!#]  
    else cxBu2( Y  
            print "  No rays made it through!" '!)|;qe  
    endif Voi`OCut  
    f=f+1 RR u1/nam  
    if f<= nfld() then goto 1 5]/i[T_  
    print VP|ga }(  
    print "All field positions done!" %!5[3b'h  
    FORMAT 0.1 B|Y6;4?  
    print "Elapsed time ", ETIM(), " seconds." "XWrd [Df  
     
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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  ~yQby&s  
    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 35}{dr  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  O>Y Xvu  
    fmuAX w>  
    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 "xS?#^a