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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············· .?$gpM?i  
    DB,J3bm  
    macro 正文:········· C?eH]hkZ3  
    ! centroid.zpl N~'c_l  
    ! >4CbwwMA  
    ! Written by Kenneth Moore 9/1/92 Y}wyw8g/  
    ! Added TIMER function 4/18/96 4o[{>gW  
    ! G"A#Q"  
    TIMER F:S}w   
    ! k8zI(5.>  
    ! The delta controls how many rays will be traced. A w``U=sfmV  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. ]D\D~!R  
    ! Zj'9rXhrM1  
    delta = .025 k!Y, 63V=  
    ! yJIscwF  
    print "This program computes the chief ray coordinates," p4Z(^+Aa  
    print "centroid coordinates, and middle coordinates for" cw <l{A  
    print "the primary wave spot at each field position." jmG~UnM  
    maxfield = maxf() sRb9`u =)  
    if maxfield == 0 then maxfield = 1 o ^uA">GH  
    n = nsur() La[V$+Y  
    f = 1 K{+2G&i  
    label 1 "3J}b?u_[  
    hx = fldx(f)/maxfield 7b+6%fV  
    hy = fldy(f)/maxfield S,8e lKH4  
    raytrace hx,hy,0,0 k+*u/neh  
    format 10.4 a d\ot#V  
    print cFXp  
    print "  X Field    = ", fldx(f), xskz) kk  
    print "  Y Field    = ", fldy(f) MF'JeM;H  
    print "  X Chief    = ",rayx(n), N?8!3&TiV  
    print "  Y Chief    = ",rayy(n) #GFr`o0$^  
    xraymax = -9e9 <1TAw.  
    yraymax = -9e9 #KvlYZ+1  
    xraymin =  9e9 r<$y= B  
    yraymin =  9e9 gjlx~.0d  
    xraytot = 0 CTmT@A{  
    yraytot = 0 Dw"\/p:-3  
    numray = 0 %(Icz ?  
    numrayattempt = 0 1xvu<|F  
    px = -1 - delta uXiN~j &Be  
    label 2 |I=T @1_D  
    px = px + delta gRzxLf`K  
    py = -1 - delta !8 b ^,  
    label 3 DHRlWQox  
    py = py + delta &7s.`  
    rad = px*px + py*py l U]nd[x  
    if rad <= 0.9999999 m4Zk\,1m.|  
            raytrace hx, hy, px, py x?<FJ"8"k  
            numrayattempt = numrayattempt+1 FP>2C9:d  
            if !rayv(n)                                              **************************** |uJ%5y#  
                    numray = numray + 1 e'<)V_  
                    x = rayx(n) _yT Ed"$  
                    y = rayy(n) B)UZ`?>c  
                    if (x < xraymin) then xraymin = x vih9 KBT  
                    if (x > xraymax) then xraymax = x W%w~ah|/]  
                    if (y < yraymin) then yraymin = y CvdN"k  
                    if (y > yraymax) then yraymax = y J .%IfN  
                    xraytot = xraytot + x Ho]su?  
                    yraytot = yraytot + y :23P!^Y  
            endif 6S{l' !s'  
    endif +w~oH=  
    if py < 1.0 then goto 3 y B$x>Q'C(  
    if px < 1.0 then goto 2 'N(R_q6MW  
    if numray #0<XNLM  
            format 14.8 xYB{;K  
            print "  X Centroid = ",xraytot/numray, u1.BN>G  
            print "  Y Centroid = ",yraytot/numray +cRn%ioVi  
            print "  X Middle   = ",(xraymax+xraymin)/2, ptaKf4P^r  
            print "  Y Middle   = ",(yraymax+yraymin)/2 R@2X3s:  
            format .0 h@BY]80  
            print "  ",numray, " out of ", numrayattempt," rays made it through." "Y.y:Vv;  
    else \)Cl%Em  
            print "  No rays made it through!" [-x7_=E#  
    endif |l!aB(NW  
    f=f+1 Z30A{6}  
    if f<= nfld() then goto 1 *K; ~!P  
    print {c0`Um3&>  
    print "All field positions done!" ss-D(K"  
    FORMAT 0.1 " Yy n/  
    print "Elapsed time ", ETIM(), " seconds." 6w77YTJ  
     
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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 1YMh1+1  
    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 d5l UGRg  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  W'.m'3#z  
    { BHO/q3  
    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 -PQv ?5