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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············· s&!a  
    {T Ug. %u  
    macro 正文:········· Nl(3Xqov  
    ! centroid.zpl }XM(:|8J,  
    ! q\527^ZM  
    ! Written by Kenneth Moore 9/1/92 Mzw X>3x  
    ! Added TIMER function 4/18/96 kd$D 3S ^{  
    ! 9v!1V,`j"  
    TIMER Km6YP!i  
    ! ^Zy% fv,  
    ! The delta controls how many rays will be traced. A _W'-+,  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. td3D=Y  
    ! e2W".+B1  
    delta = .025 3J438M.ka  
    ! a,#j =  
    print "This program computes the chief ray coordinates," {LQ#y/H?  
    print "centroid coordinates, and middle coordinates for" A:9?ZI/X  
    print "the primary wave spot at each field position." ~PahoRS  
    maxfield = maxf() {Wu$YWE*sx  
    if maxfield == 0 then maxfield = 1 =+MPFhvg!  
    n = nsur() FzXJ]H  
    f = 1  A4<Uu~  
    label 1 :7?FF'u  
    hx = fldx(f)/maxfield 'xg Lt(  
    hy = fldy(f)/maxfield p >t#@Eu|  
    raytrace hx,hy,0,0 ;Nj7qt  
    format 10.4 WYYa /,{9.  
    print "djw>|,N<  
    print "  X Field    = ", fldx(f), P&e\)Z|  
    print "  Y Field    = ", fldy(f) n%s]30Xs  
    print "  X Chief    = ",rayx(n), &;sP_ h  
    print "  Y Chief    = ",rayy(n) r[Hc>wBv  
    xraymax = -9e9 h"lv7;B$  
    yraymax = -9e9 y (pks$  
    xraymin =  9e9 58J}{Req  
    yraymin =  9e9 e?=^;v%r  
    xraytot = 0 P{+T< bk|  
    yraytot = 0 #@~+HC=  
    numray = 0 O ,h;hQZ  
    numrayattempt = 0 |:<f-j7t~  
    px = -1 - delta SHo$9+  
    label 2 VsE9H]v   
    px = px + delta {_Rr 6  
    py = -1 - delta KOuCHqCfq  
    label 3 xJ)n4)  
    py = py + delta hL;(C) (  
    rad = px*px + py*py b4ONh%  
    if rad <= 0.9999999 ,1CIBFY  
            raytrace hx, hy, px, py 6U,O*WJ%e  
            numrayattempt = numrayattempt+1 "z=SO1  
            if !rayv(n)                                              **************************** |! E)GahM  
                    numray = numray + 1 u=7J /!H7^  
                    x = rayx(n) !~D}/Q;#}\  
                    y = rayy(n) zvH8^1yzG  
                    if (x < xraymin) then xraymin = x $,}E   
                    if (x > xraymax) then xraymax = x DOJN2{IP  
                    if (y < yraymin) then yraymin = y }n2M G  
                    if (y > yraymax) then yraymax = y m~d]a$KQ5-  
                    xraytot = xraytot + x EbE-}>7OO  
                    yraytot = yraytot + y B1C-J/J  
            endif usCt#eZK  
    endif s<eb;Z2D  
    if py < 1.0 then goto 3 j; y#[|  
    if px < 1.0 then goto 2 Vq?p|wy  
    if numray c>RFdc:U  
            format 14.8 Zk"eA'"\  
            print "  X Centroid = ",xraytot/numray, =~H<Z LE+  
            print "  Y Centroid = ",yraytot/numray u5 : q$P  
            print "  X Middle   = ",(xraymax+xraymin)/2, $m1z-i;/  
            print "  Y Middle   = ",(yraymax+yraymin)/2 g8xQ|px  
            format .0 lP@Ki5  
            print "  ",numray, " out of ", numrayattempt," rays made it through." ?!cvf{a  
    else "4+ WZR]  
            print "  No rays made it through!" Slher0.Y  
    endif -pGE]nwDL  
    f=f+1 @u]rWVy;\[  
    if f<= nfld() then goto 1 P5nO78  
    print 72y0/FJ  
    print "All field positions done!" [@b&? b~K  
    FORMAT 0.1 ~r`9+b[9{  
    print "Elapsed time ", ETIM(), " seconds." D\s WZ  
     
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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 >>o dZL  
    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 ;Uu(zhbj  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  mPP`xL?T  
    zs*L~_K  
    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 r~nsN*t