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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#XJU  
    O4fl$egQU  
    macro 正文:········· K';x2ffj  
    ! centroid.zpl $fl+l5?9  
    ! C{8(ew  
    ! Written by Kenneth Moore 9/1/92 uiIS4S_  
    ! Added TIMER function 4/18/96 El#"vIg(\  
    ! &i?>mt  
    TIMER x 2Cp{+}  
    ! %T'<vw0  
    ! The delta controls how many rays will be traced. A r:Rk!z*  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. jQrw^6C  
    ! sW]fPa(cn,  
    delta = .025 v)J(@>CZ[  
    ! :J6lJ8w ?  
    print "This program computes the chief ray coordinates," zyi;vu  
    print "centroid coordinates, and middle coordinates for" !U8n=A#,-  
    print "the primary wave spot at each field position." |Y&&g=7  
    maxfield = maxf() .-HwT3  
    if maxfield == 0 then maxfield = 1 UCVdR<<Z  
    n = nsur() p?XVO#  
    f = 1 o6T'U#7P  
    label 1 3r-oZ8/n  
    hx = fldx(f)/maxfield UY$Lqe~  
    hy = fldy(f)/maxfield x|lX1Mh$  
    raytrace hx,hy,0,0 ,37\8y?o\  
    format 10.4 's_[ #a;Vp  
    print 38l 8n.  
    print "  X Field    = ", fldx(f), ;2jH;$HZ  
    print "  Y Field    = ", fldy(f) Gj H$!P=.  
    print "  X Chief    = ",rayx(n), GP{$w_'!J0  
    print "  Y Chief    = ",rayy(n) Usz O--.C  
    xraymax = -9e9 R7ze~[oF  
    yraymax = -9e9 e'0BP,\f_}  
    xraymin =  9e9 * faG0le  
    yraymin =  9e9 @K=C`N_22  
    xraytot = 0  -#<AbT  
    yraytot = 0 KO3X)D<3  
    numray = 0 zqt{oN_  
    numrayattempt = 0 Q.Xs%{B  
    px = -1 - delta w9]HJ3qi  
    label 2 qbD>)}:1  
    px = px + delta BH\!yxK  
    py = -1 - delta [H5BIM@{  
    label 3 PEDV9u[A  
    py = py + delta L| K8  
    rad = px*px + py*py Z b}U 4  
    if rad <= 0.9999999 VtnVl`/]  
            raytrace hx, hy, px, py RBOg;EJ  
            numrayattempt = numrayattempt+1 !M@jW[s  
            if !rayv(n)                                              **************************** $@^*lUw  
                    numray = numray + 1 g?E8zf `  
                    x = rayx(n) 2D)B%nM[  
                    y = rayy(n) @P @{%I  
                    if (x < xraymin) then xraymin = x <@H`5[R  
                    if (x > xraymax) then xraymax = x 4U>g0  
                    if (y < yraymin) then yraymin = y h h7unHt-  
                    if (y > yraymax) then yraymax = y ( we)0AxF'  
                    xraytot = xraytot + x +*L<"@  
                    yraytot = yraytot + y []b= xRJM  
            endif =M`Xu#eRk  
    endif #sM`>KG6T1  
    if py < 1.0 then goto 3 $q*hE&x Qd  
    if px < 1.0 then goto 2 jT=fq'RK  
    if numray Xb2.t^ ]f  
            format 14.8 TY;%nT  
            print "  X Centroid = ",xraytot/numray, _|VF^\i  
            print "  Y Centroid = ",yraytot/numray %Hu?syo  
            print "  X Middle   = ",(xraymax+xraymin)/2, ex6 QHUQ  
            print "  Y Middle   = ",(yraymax+yraymin)/2 F4DJML-(  
            format .0 ,{2= nb[  
            print "  ",numray, " out of ", numrayattempt," rays made it through." QERj`/g  
    else ;u;_\k<qK  
            print "  No rays made it through!" sT'j36Nc<,  
    endif pS+hE4D  
    f=f+1 +$$5Cv5#<&  
    if f<= nfld() then goto 1 +vt?3i\^.  
    print D6,Ol4d  
    print "All field positions done!" Qv6-,6<  
    FORMAT 0.1 i5cK5MaD  
    print "Elapsed time ", ETIM(), " seconds." of8 >xvE|  
     
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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 08+\fT [  
    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 N<b~,[yCd>  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  SLRF\mh!L  
    eV~"T2!Sb  
    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 xkU8(=