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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············· ~oSA&v4V  
    @]X!#&2>  
    macro 正文:········· TTj] _R{n  
    ! centroid.zpl n~`jUML2d  
    ! AM!P?${a  
    ! Written by Kenneth Moore 9/1/92 iWW!'u$+I`  
    ! Added TIMER function 4/18/96 Uhh[le2 %  
    ! R6;229e  
    TIMER E.:eO??g  
    ! md{1Jn"  
    ! The delta controls how many rays will be traced. A %`G}/"  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. 5C`Vno~v  
    ! X%*BiI  
    delta = .025 X J]+F  
    ! :k.>H.8+~  
    print "This program computes the chief ray coordinates," u8A,f}D 3  
    print "centroid coordinates, and middle coordinates for" Rb b[N#p5  
    print "the primary wave spot at each field position." /8_x]Es/  
    maxfield = maxf() DP*V|)  
    if maxfield == 0 then maxfield = 1 ct*~\C6Ze  
    n = nsur() 8_D:#i  
    f = 1 gEVoY,}/-U  
    label 1 uh)f/)6  
    hx = fldx(f)/maxfield ;erxB6*  
    hy = fldy(f)/maxfield fH ,h\0  
    raytrace hx,hy,0,0 '#lEUlB  
    format 10.4 bsc b  
    print &{M-<M  
    print "  X Field    = ", fldx(f), M#],#o*G  
    print "  Y Field    = ", fldy(f) 2+(SR.oGq  
    print "  X Chief    = ",rayx(n), W}(xE?9&  
    print "  Y Chief    = ",rayy(n) ABtv|0K  
    xraymax = -9e9 :Z;kMrU  
    yraymax = -9e9 "[L+LPET  
    xraymin =  9e9 ]Ah<kq2sk  
    yraymin =  9e9 =snJ+yn!  
    xraytot = 0 `$;%%/tx  
    yraytot = 0 ,`ehR6b  
    numray = 0 r`0oI66B/  
    numrayattempt = 0 0F 4%Xz  
    px = -1 - delta J0@#xw=+  
    label 2 )lx;u.$4  
    px = px + delta 4NFvX4  
    py = -1 - delta pi*?fUg!W  
    label 3 [ dVRVm0N  
    py = py + delta NTM.Vj -_h  
    rad = px*px + py*py _B==S4^/yU  
    if rad <= 0.9999999 ",E$}= ,Z  
            raytrace hx, hy, px, py 5Obv/C  
            numrayattempt = numrayattempt+1 PTA_erU  
            if !rayv(n)                                              **************************** #)%dG3)e  
                    numray = numray + 1 NydoX9  
                    x = rayx(n) #k)J);&ZA  
                    y = rayy(n) /EM=!@ka  
                    if (x < xraymin) then xraymin = x ? O e,  
                    if (x > xraymax) then xraymax = x W2,Uw1\:1  
                    if (y < yraymin) then yraymin = y @F5QgO J&r  
                    if (y > yraymax) then yraymax = y YQfQ[{kp  
                    xraytot = xraytot + x :?gk =JH:  
                    yraytot = yraytot + y 7}e{&\0=l  
            endif TbR Ee;1  
    endif ^w}BXVn  
    if py < 1.0 then goto 3 Ria*+.k@"B  
    if px < 1.0 then goto 2 )d?L*X~y'  
    if numray >R6>*|~S  
            format 14.8 3:P "6mN  
            print "  X Centroid = ",xraytot/numray, {D8[pG%z  
            print "  Y Centroid = ",yraytot/numray !='&#@7u  
            print "  X Middle   = ",(xraymax+xraymin)/2, ->YF</I  
            print "  Y Middle   = ",(yraymax+yraymin)/2 !RdubM  
            format .0 L)Ru]X`  
            print "  ",numray, " out of ", numrayattempt," rays made it through." K06&.>v_  
    else bU"2D.k  
            print "  No rays made it through!" Rwz (20n\^  
    endif uQg&A`4  
    f=f+1 yy3-Xu4  
    if f<= nfld() then goto 1 O>L 5 dP  
    print ulnlRx  
    print "All field positions done!" wd~!j&`a  
    FORMAT 0.1 :E9@9>3S  
    print "Elapsed time ", ETIM(), " seconds." RV+0C&0ff  
     
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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 p8MPn>h<  
    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 =hO0 @w  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  H7KcPN(0  
    Qf|=xV,F  
    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 J2BW>T!tuw