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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············· YUEyGhkMV{  
    aYaEy(m  
    macro 正文:········· Pj <U|\-?  
    ! centroid.zpl sh_;98^  
    ! ]##aAh-P4&  
    ! Written by Kenneth Moore 9/1/92 F)hj\aHm k  
    ! Added TIMER function 4/18/96 q k^FyZ<  
    ! ]qT&6:;-]  
    TIMER 4-.K<-T%D  
    ! .@,t}:lD  
    ! The delta controls how many rays will be traced. A =4eJ@EVM  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. .g*N +T6O  
    ! m}wn+R  
    delta = .025 *I(6hB  
    ! {1OxJn1hd  
    print "This program computes the chief ray coordinates," C12UZE;  
    print "centroid coordinates, and middle coordinates for" eZPeyYX  
    print "the primary wave spot at each field position." \~hrS/$[$  
    maxfield = maxf() .U0Gm_c0  
    if maxfield == 0 then maxfield = 1 p3U)J&]c6  
    n = nsur() sr6 BC.  
    f = 1 r& a[ ?  
    label 1 .Z [4:TS  
    hx = fldx(f)/maxfield w. k9{f  
    hy = fldy(f)/maxfield ]!/U9"_e"B  
    raytrace hx,hy,0,0 e%JIqKS  
    format 10.4 9Y,JYc#  
    print RJWO h  
    print "  X Field    = ", fldx(f), M4C8K{}  
    print "  Y Field    = ", fldy(f) ?.VKVTX^  
    print "  X Chief    = ",rayx(n), F<I*?${[  
    print "  Y Chief    = ",rayy(n) e3; &  
    xraymax = -9e9 X vaIOt>A  
    yraymax = -9e9 !Ap5Uwd  
    xraymin =  9e9 ^y/Es2A#t  
    yraymin =  9e9 %1Q:{m  
    xraytot = 0 h~k<"  
    yraytot = 0 src9EeiV  
    numray = 0 WVa%<  
    numrayattempt = 0 P5<9;PPbZ  
    px = -1 - delta +^Xf:r` G  
    label 2 z{L'7  
    px = px + delta <!sLf z?  
    py = -1 - delta +06{5-,  
    label 3 srv4kodj  
    py = py + delta 05LkLB  
    rad = px*px + py*py #%;Uh  
    if rad <= 0.9999999 1jg* DQ7L  
            raytrace hx, hy, px, py ,j*9)  
            numrayattempt = numrayattempt+1 oVpZR$  
            if !rayv(n)                                              **************************** ST?{H SCz  
                    numray = numray + 1 xQFY/Z  
                    x = rayx(n) 7\ _MA!:<  
                    y = rayy(n) oK\zyNK  
                    if (x < xraymin) then xraymin = x >.Gmu  
                    if (x > xraymax) then xraymax = x NuQ!huh  
                    if (y < yraymin) then yraymin = y 7 XxZF43  
                    if (y > yraymax) then yraymax = y k77IXT_7u  
                    xraytot = xraytot + x U*C^g}iA  
                    yraytot = yraytot + y MR1I"gqE}I  
            endif sG u.G  
    endif %P0  
    if py < 1.0 then goto 3 0 %~~IT}U  
    if px < 1.0 then goto 2 K ";Et  
    if numray *K|~]r(F?  
            format 14.8 3*h"B$g!  
            print "  X Centroid = ",xraytot/numray, <,)R`90_X6  
            print "  Y Centroid = ",yraytot/numray n*7^lAa2  
            print "  X Middle   = ",(xraymax+xraymin)/2, /2Wg=&H  
            print "  Y Middle   = ",(yraymax+yraymin)/2 =>;&M)+q  
            format .0 /"Vd( K2Z  
            print "  ",numray, " out of ", numrayattempt," rays made it through." <r#FI8P;X  
    else oy8jc];SO  
            print "  No rays made it through!" v?VDASR2`  
    endif ^K<3_D>1>  
    f=f+1 \|0z:R;X  
    if f<= nfld() then goto 1 'OA*aQ=K  
    print Yg8* )u0  
    print "All field positions done!" T aS1%(  
    FORMAT 0.1 ;?/5Mr  
    print "Elapsed time ", ETIM(), " seconds." 5pJe`}O4  
     
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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 i#la'ICwJ  
    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 -yf8  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  $BdwKk !k  
    RHFRN&RU$  
    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}mo=*