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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············· Mnz!nWhk  
    1xbK'i:-S  
    macro 正文:········· B7]C]=${m  
    ! centroid.zpl ;Wl+ zw  
    ! V\{tmDE  
    ! Written by Kenneth Moore 9/1/92 w^#L9i'v'  
    ! Added TIMER function 4/18/96 B?)@u|0  
    ! Fb4`|  
    TIMER }t ;(VynV)  
    ! `8I&7c  
    ! The delta controls how many rays will be traced. A g=2Rqi5  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. L}FO jrN  
    ! K\$J4~EtG  
    delta = .025 OzQ -7|m'J  
    ! 13+<Q \  
    print "This program computes the chief ray coordinates," Vg>(  Y,  
    print "centroid coordinates, and middle coordinates for" y /BJIQ  
    print "the primary wave spot at each field position." 5i-Rglo  
    maxfield = maxf() 2 OwV^-OG  
    if maxfield == 0 then maxfield = 1 q-`RI*1]  
    n = nsur() 9!Ar`Io2@  
    f = 1 ]Z oD'-,  
    label 1 GQl$yZaK{  
    hx = fldx(f)/maxfield UH"#2< |b  
    hy = fldy(f)/maxfield .-IkL |M  
    raytrace hx,hy,0,0 XO9M_*Va  
    format 10.4 9&2Vm;F_  
    print 7 As|Ns`  
    print "  X Field    = ", fldx(f), OZIW_'Wm/  
    print "  Y Field    = ", fldy(f) X5khCL Hi  
    print "  X Chief    = ",rayx(n), 2{Chu85   
    print "  Y Chief    = ",rayy(n) (C\hVy2X?N  
    xraymax = -9e9 ,i0b)=!o  
    yraymax = -9e9 !p[9{U->o;  
    xraymin =  9e9 RKa}$ 7  
    yraymin =  9e9 }->.k/vc  
    xraytot = 0 H{AMZyV0/d  
    yraytot = 0 1=nUW":  
    numray = 0 p?2Y }9  
    numrayattempt = 0 ?0 m\(#  
    px = -1 - delta Hzhceeh_+  
    label 2 Mze;k3  
    px = px + delta [tH-D$V  
    py = -1 - delta 5hbJOo0BZ  
    label 3 " beQZG  
    py = py + delta PT^c^{V  
    rad = px*px + py*py +MB!B9M@  
    if rad <= 0.9999999 5|I[>Su  
            raytrace hx, hy, px, py \(PohwWWo  
            numrayattempt = numrayattempt+1 1O!/g  
            if !rayv(n)                                              **************************** {\z({Wlb]  
                    numray = numray + 1 )OLq_':^ @  
                    x = rayx(n) xESjM1A)  
                    y = rayy(n) )$&dg2[  
                    if (x < xraymin) then xraymin = x xEltwuDd?  
                    if (x > xraymax) then xraymax = x e|rg;`AW  
                    if (y < yraymin) then yraymin = y X/; p-KX  
                    if (y > yraymax) then yraymax = y HeK h>  
                    xraytot = xraytot + x bO;(bE m@  
                    yraytot = yraytot + y 1Fe^Qb5G  
            endif W>=o*{(YO  
    endif Dgql?+2$  
    if py < 1.0 then goto 3 QnI.zq V  
    if px < 1.0 then goto 2 `$YP<CJeq  
    if numray |w*R8ro_  
            format 14.8 9~0^PzTA  
            print "  X Centroid = ",xraytot/numray, `Rd m-[&  
            print "  Y Centroid = ",yraytot/numray a6h>=uT [  
            print "  X Middle   = ",(xraymax+xraymin)/2, kip`Myw+  
            print "  Y Middle   = ",(yraymax+yraymin)/2 ZO7&vF}  
            format .0 NJ MJ  
            print "  ",numray, " out of ", numrayattempt," rays made it through." @O}7XRJ_8  
    else ;oNhEB:F  
            print "  No rays made it through!" v6GsoQmA   
    endif <N(oDaU  
    f=f+1 EQe5JFR  
    if f<= nfld() then goto 1 +"ueq  
    print vNW jH!'  
    print "All field positions done!" &6j<ca  
    FORMAT 0.1 fRvAKz|rL  
    print "Elapsed time ", ETIM(), " seconds." #n  
     
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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 FZH\Q~IUV  
    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 kd;'}x=5yP  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  W>L@j(  
    0k?Sq#7q  
    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 w &vhWq