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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············· {r"HR%*u  
    P)3e^~+A  
    macro 正文:········· T SOt$7-  
    ! centroid.zpl *N't ;  
    ! )vw3Y88  
    ! Written by Kenneth Moore 9/1/92 3Cpix,Dc  
    ! Added TIMER function 4/18/96 #8'%CUF*<8  
    ! fQ<V_loP.@  
    TIMER  H='`#l1  
    ! ~ 60J  
    ! The delta controls how many rays will be traced. A "ey~w=B$M  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. PffRV7qU0  
    ! *w!H -*`  
    delta = .025 8g<3J-7Mm  
    ! GDk/85cv0$  
    print "This program computes the chief ray coordinates," >LjvMj ]  
    print "centroid coordinates, and middle coordinates for" ~q<U E\H  
    print "the primary wave spot at each field position." >8ePx,+!  
    maxfield = maxf() Od!j+.OY<  
    if maxfield == 0 then maxfield = 1 K]RkKMT,  
    n = nsur() *-2u0%  
    f = 1 $Cte$ jg{;  
    label 1 :z.< ||T  
    hx = fldx(f)/maxfield &D/_@\ 0  
    hy = fldy(f)/maxfield 2Ddrxc>48  
    raytrace hx,hy,0,0 X _XqT  
    format 10.4 /QTGZ b  
    print 3dXyKi  
    print "  X Field    = ", fldx(f), {<bByHT!  
    print "  Y Field    = ", fldy(f) fuQ? @F  
    print "  X Chief    = ",rayx(n), d"$ \fL  
    print "  Y Chief    = ",rayy(n) ^G15]Pyw  
    xraymax = -9e9 k)'c$  
    yraymax = -9e9 /+%1Kq.hP  
    xraymin =  9e9 w+P bT6;  
    yraymin =  9e9 R(3V ! ph  
    xraytot = 0 JIDE]f  
    yraytot = 0 C%l~qf1n  
    numray = 0 BB9Z?}  
    numrayattempt = 0 EY':m_7W  
    px = -1 - delta a(!:a+9WOP  
    label 2 P$\( Bd\76  
    px = px + delta R|Y)ow51  
    py = -1 - delta !\^c9Pg|v  
    label 3 VMsAT3^w  
    py = py + delta dX` _Y  
    rad = px*px + py*py W.{#Pg1Da  
    if rad <= 0.9999999 (q*Za  
            raytrace hx, hy, px, py Gb\}e}TB[  
            numrayattempt = numrayattempt+1 {6*h';~  
            if !rayv(n)                                              **************************** TAIcp*)ZM  
                    numray = numray + 1 gtJUQu p2  
                    x = rayx(n) 4, 8gf2  
                    y = rayy(n) >cQ*qXI0  
                    if (x < xraymin) then xraymin = x f?[IwA`  
                    if (x > xraymax) then xraymax = x e%o6s+"  
                    if (y < yraymin) then yraymin = y -(@dMY  
                    if (y > yraymax) then yraymax = y &K|<7Efx  
                    xraytot = xraytot + x o0_RU<bWN  
                    yraytot = yraytot + y rU%\ 8T0f  
            endif rV54-K;`0  
    endif 32:q'   
    if py < 1.0 then goto 3 bw ' yX  
    if px < 1.0 then goto 2 :TxfkicN\  
    if numray Atzp\oO  
            format 14.8 ;XRLp:y  
            print "  X Centroid = ",xraytot/numray, ~W_m<#K(  
            print "  Y Centroid = ",yraytot/numray !Yz~HO,u+  
            print "  X Middle   = ",(xraymax+xraymin)/2, P BpjE}[Q  
            print "  Y Middle   = ",(yraymax+yraymin)/2 0,{Dw9W:  
            format .0 120<(#  
            print "  ",numray, " out of ", numrayattempt," rays made it through." ~ucOQVmz@  
    else =(3Qbb1i  
            print "  No rays made it through!" GTyS8`5E*  
    endif 2X&~!%-  
    f=f+1 "W?k~.uw  
    if f<= nfld() then goto 1 g>CF|Wj  
    print 5rr7lw WZ  
    print "All field positions done!" &gw. &/t  
    FORMAT 0.1 `_N8A A  
    print "Elapsed time ", ETIM(), " seconds." BOQ2;@:3  
     
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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 @NWjYHM[`  
    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 34_:.QK-  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  <\eHK[_*  
    b<};"H0a  
    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 H"lq!C`