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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············· "a6 wd  
    2anx]QV4  
    macro 正文:········· 7^Jszd:c08  
    ! centroid.zpl I [0od+K  
    ! n\.K:t[:  
    ! Written by Kenneth Moore 9/1/92 C&3#'/&  
    ! Added TIMER function 4/18/96 ev#d1s|<S  
    ! @ MNL  
    TIMER VE6T&fz`  
    ! \y: 0+s/  
    ! The delta controls how many rays will be traced. A @iy ^a  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. ^Q4w<sX'  
    ! lVXgp'!#j  
    delta = .025 netKt_  
    ! I1&Z@[  
    print "This program computes the chief ray coordinates," n@5pS3qZ  
    print "centroid coordinates, and middle coordinates for" M,t8<y4 W/  
    print "the primary wave spot at each field position." .?_wcp=  
    maxfield = maxf() JXGIVH?Rpu  
    if maxfield == 0 then maxfield = 1 rc*&K#? B  
    n = nsur() (Y'rEc#H&z  
    f = 1 Q{H88g^=J  
    label 1 ~5`rv1$  
    hx = fldx(f)/maxfield Yiu)0\ o  
    hy = fldy(f)/maxfield R?>a UFM  
    raytrace hx,hy,0,0 u|WX?@\  
    format 10.4 +fAAkO*GP  
    print x7l)i!/$  
    print "  X Field    = ", fldx(f), vf~q%+UqK  
    print "  Y Field    = ", fldy(f) C\.?3  
    print "  X Chief    = ",rayx(n), S]9:3~  
    print "  Y Chief    = ",rayy(n) ]BP/KCjAI<  
    xraymax = -9e9 Nb#E +\q  
    yraymax = -9e9 @+ Berb  
    xraymin =  9e9 5 & -fX:/  
    yraymin =  9e9 E[nWB"pxE  
    xraytot = 0 rd0BvQ9TK  
    yraytot = 0 23pHB |X  
    numray = 0 vp4!p~C{  
    numrayattempt = 0 A]BG*  
    px = -1 - delta 5xLuuKG  
    label 2 7SXi#{  
    px = px + delta ?O\n!c  
    py = -1 - delta t{!}^{ "5  
    label 3 %9-).k  
    py = py + delta -G;4['p  
    rad = px*px + py*py {^"c>'R  
    if rad <= 0.9999999 i<bFF03*S  
            raytrace hx, hy, px, py C n\'sb{  
            numrayattempt = numrayattempt+1 r&1N8o  
            if !rayv(n)                                              **************************** A:p7\Kp;5}  
                    numray = numray + 1 sTeL4g|%{  
                    x = rayx(n) ^%#v AS  
                    y = rayy(n) 6rt.ec(  
                    if (x < xraymin) then xraymin = x ;r^8In@6  
                    if (x > xraymax) then xraymax = x ~Rk6@&ZS}  
                    if (y < yraymin) then yraymin = y =o{zw+|% %  
                    if (y > yraymax) then yraymax = y h k(2,z  
                    xraytot = xraytot + x @w,-T@nAW  
                    yraytot = yraytot + y /Kwo^Q{  
            endif SG8|xoL  
    endif BA A)IQF  
    if py < 1.0 then goto 3 @5acTY Q  
    if px < 1.0 then goto 2 7,j}]  
    if numray Nypa,_9}  
            format 14.8 ~6kEpa  
            print "  X Centroid = ",xraytot/numray, zg)Z2?K|;u  
            print "  Y Centroid = ",yraytot/numray C% }FVO\c  
            print "  X Middle   = ",(xraymax+xraymin)/2, -7'>Rw  
            print "  Y Middle   = ",(yraymax+yraymin)/2 rbO9NRg>  
            format .0  Cj_cu  
            print "  ",numray, " out of ", numrayattempt," rays made it through." PM7*@~.  
    else 1f~unb\Gg  
            print "  No rays made it through!" T1M4@j  
    endif .FqbX5\p,  
    f=f+1 wcsUb 9(  
    if f<= nfld() then goto 1 ="d}:Jl  
    print 1W$@ V!  
    print "All field positions done!" %:N5k+}  
    FORMAT 0.1 r<UZ\d -  
    print "Elapsed time ", ETIM(), " seconds." >e=tem~/  
     
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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 ?\(E+6tpP  
    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 Oz'x5/%G  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  <1YINkRz  
    /x c<&  
    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 /j/,@,lw7z