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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············· pieU|?fQ  
    - XE79 fQ  
    macro 正文:········· "wT ~$I"  
    ! centroid.zpl Ov $N"  
    ! (t]lP/  
    ! Written by Kenneth Moore 9/1/92 uvu**s  
    ! Added TIMER function 4/18/96 ](B& l{V  
    ! ^>,< *p  
    TIMER Nb^zkg  
    ! c[wQJc  
    ! The delta controls how many rays will be traced. A #,f}lV,&  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. zCKy`u .  
    ! )'BJ4[aq\  
    delta = .025 JLy)}8I  
    ! "C$!mdr7  
    print "This program computes the chief ray coordinates," 1R5\GKF6o  
    print "centroid coordinates, and middle coordinates for" hRuo,FS#:  
    print "the primary wave spot at each field position." s=^r/Sz902  
    maxfield = maxf() ,Az`6PW  
    if maxfield == 0 then maxfield = 1 :GwSs'$O  
    n = nsur() *_4n2<W$  
    f = 1 dO 1-c`  
    label 1 <|KKv5[  
    hx = fldx(f)/maxfield b'Fx),  
    hy = fldy(f)/maxfield 7]M,yIwc  
    raytrace hx,hy,0,0 <F#*:Re_y  
    format 10.4 Sy+]SeF&  
    print <B ]i80.  
    print "  X Field    = ", fldx(f), /%ODJ1M  
    print "  Y Field    = ", fldy(f) } #\;np  
    print "  X Chief    = ",rayx(n), \U)2 Tg  
    print "  Y Chief    = ",rayy(n) ~uhyROO,G"  
    xraymax = -9e9 D&z'tf5  
    yraymax = -9e9 RvyBg:Aj5  
    xraymin =  9e9 J'G`=m"-'  
    yraymin =  9e9 7"a`-]Ap  
    xraytot = 0 [p( #WM:  
    yraytot = 0 _e:5XQ  
    numray = 0 <FcPxZ  
    numrayattempt = 0 o@<6TlZM  
    px = -1 - delta v GR \GFm  
    label 2 "W_jdE6v  
    px = px + delta .WL\:{G8;  
    py = -1 - delta eB<V%,%N#  
    label 3 o-Q]Dk1W  
    py = py + delta  \pewbu5^  
    rad = px*px + py*py rB.=f[aX[  
    if rad <= 0.9999999 !\&7oAs=I  
            raytrace hx, hy, px, py h 0QYoDvbC  
            numrayattempt = numrayattempt+1 G)tq/`zNw  
            if !rayv(n)                                              **************************** &{%S0\K Y  
                    numray = numray + 1 u'$yYzBE  
                    x = rayx(n) %|D\j-~  
                    y = rayy(n) c5B_WqjJ  
                    if (x < xraymin) then xraymin = x T}w*K[z $  
                    if (x > xraymax) then xraymax = x @Q$ /eL  
                    if (y < yraymin) then yraymin = y 8aZey_Hw;+  
                    if (y > yraymax) then yraymax = y BuEQ^[Ex  
                    xraytot = xraytot + x |L.~Am d  
                    yraytot = yraytot + y (Qx-KRH  
            endif 5|6z1{g8  
    endif 86^ZYh  
    if py < 1.0 then goto 3 L6rs9su=7  
    if px < 1.0 then goto 2 ZHiICh|et%  
    if numray oxCs*   
            format 14.8 80s~ae;  
            print "  X Centroid = ",xraytot/numray, ArmL,  
            print "  Y Centroid = ",yraytot/numray 9p[W :)P4d  
            print "  X Middle   = ",(xraymax+xraymin)/2, _Y ><ih  
            print "  Y Middle   = ",(yraymax+yraymin)/2 SVg@xu+  
            format .0 Top#u  
            print "  ",numray, " out of ", numrayattempt," rays made it through." < o'7{  
    else pzt Zb  
            print "  No rays made it through!" e&H<lT  
    endif PFDWC3<  
    f=f+1 w}bEufU+2  
    if f<= nfld() then goto 1 3'sWlhf;  
    print QN}3S0  
    print "All field positions done!" S\v&{  
    FORMAT 0.1 +4:+qGAJ{  
    print "Elapsed time ", ETIM(), " seconds." M[ ~2,M&H  
     
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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 $p6Xa;j$9  
    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 (zYSSf!I  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  gS<{ekN  
    .' 2gJ"?,  
    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 k+GK1Yl