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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············· [Tq\K ^!^  
    ]F]!>dKA  
    macro 正文:········· o3oAk10  
    ! centroid.zpl t'F_1P^*/  
    ! -1>$3-ur~  
    ! Written by Kenneth Moore 9/1/92 F|seBBu  
    ! Added TIMER function 4/18/96 5%5z@Ka  
    ! ; {P"~(S%  
    TIMER 2' 8$I}h  
    ! "Y7 ]t:8  
    ! The delta controls how many rays will be traced. A wv~?<DF  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. ^z^ UFW  
    ! ]DaC??%w  
    delta = .025 tluyx  
    ! s=uWBh3J  
    print "This program computes the chief ray coordinates,"  xlH?J;$  
    print "centroid coordinates, and middle coordinates for" I'NE>!=Q  
    print "the primary wave spot at each field position." _%`<V!RT\  
    maxfield = maxf() -5Km 9X8  
    if maxfield == 0 then maxfield = 1 +-|D$@8S  
    n = nsur() oiS>:de%tc  
    f = 1 !/},k"p6  
    label 1  EK:s#  
    hx = fldx(f)/maxfield qU1^ K  
    hy = fldy(f)/maxfield k$hNibpkt  
    raytrace hx,hy,0,0 $2M dxw5  
    format 10.4 y.LJ 5K$&a  
    print ,3zF_y(*Y  
    print "  X Field    = ", fldx(f), }#rdMh  
    print "  Y Field    = ", fldy(f) l9 |x7GB  
    print "  X Chief    = ",rayx(n), $|2@of.  
    print "  Y Chief    = ",rayy(n) V`n;W6Q17  
    xraymax = -9e9 y8{PAH8S  
    yraymax = -9e9 dX58nJ4u  
    xraymin =  9e9 ?QnVWu2K  
    yraymin =  9e9 X2MQa:yksP  
    xraytot = 0 gyI(O>e  
    yraytot = 0 _uR-Z_z  
    numray = 0 'Gw;@[  
    numrayattempt = 0 BE;J/  
    px = -1 - delta 4+V+SD  
    label 2 S!<1C Fh  
    px = px + delta >}43xIRRCq  
    py = -1 - delta 4[S0~O{r  
    label 3 &tULSp@J  
    py = py + delta f4s^$Q{Q  
    rad = px*px + py*py ;Ly(O'9  
    if rad <= 0.9999999 "\'g2|A  
            raytrace hx, hy, px, py CZ/bO#~  
            numrayattempt = numrayattempt+1 e%v<nGN.-  
            if !rayv(n)                                              **************************** btfjmR<Tp  
                    numray = numray + 1 JYbE(&l%de  
                    x = rayx(n) k+"+s bsW'  
                    y = rayy(n) Qe!Q $  
                    if (x < xraymin) then xraymin = x "rjqDpH  
                    if (x > xraymax) then xraymax = x &?@gUk74"  
                    if (y < yraymin) then yraymin = y q>~\w1%}a\  
                    if (y > yraymax) then yraymax = y *|f&a  
                    xraytot = xraytot + x $>3/6(bW  
                    yraytot = yraytot + y idC4yH42  
            endif fwojFS.K  
    endif 1GnT^u y/  
    if py < 1.0 then goto 3 N F[v/S  
    if px < 1.0 then goto 2 w>IYrSaa>  
    if numray brkR,(#L3  
            format 14.8 LiyEF&_u  
            print "  X Centroid = ",xraytot/numray, uhuwQS=X  
            print "  Y Centroid = ",yraytot/numray 3&D;V;ON}_  
            print "  X Middle   = ",(xraymax+xraymin)/2, F Ty`#*7Ul  
            print "  Y Middle   = ",(yraymax+yraymin)/2 Y2 &N#~l*  
            format .0 959i2z  
            print "  ",numray, " out of ", numrayattempt," rays made it through." NX$S^Z\QI  
    else N#;k;Z'iL  
            print "  No rays made it through!" y&0&K 4aa  
    endif o |7]8K=  
    f=f+1 |5wuYG  
    if f<= nfld() then goto 1 cJ G><'  
    print D!. r$i)  
    print "All field positions done!" 41<.e` {  
    FORMAT 0.1 e!wS"[,  
    print "Elapsed time ", ETIM(), " seconds." .wrNRU7s  
     
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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 zh$[UdY6  
    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 >`8r52  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  \$s<G|<P  
    z6bTcs"7h  
    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 gm9e-QIHK