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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············· "j&'R#$&d  
     +#\7 #Y  
    macro 正文:········· mx#%oJnsi  
    ! centroid.zpl C`R<55x6  
    ! YmpaLZJ  
    ! Written by Kenneth Moore 9/1/92 !9.FI{W  
    ! Added TIMER function 4/18/96 ':3[?d1Es  
    ! % m"Qg<  
    TIMER OE}FZCX F  
    ! >bd@2au9!  
    ! The delta controls how many rays will be traced. A s/.P/g%tA>  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. c/igw+L()  
    ! =Z{jc  
    delta = .025 :%Oz:YxC/  
    ! J.'%=q(Sb  
    print "This program computes the chief ray coordinates," ?T.=y m  
    print "centroid coordinates, and middle coordinates for" vw4b@v-XQ3  
    print "the primary wave spot at each field position." Eh)VT{vp  
    maxfield = maxf() &=MVX>[  
    if maxfield == 0 then maxfield = 1 `lQ;M?D  
    n = nsur() zvVo-{6  
    f = 1 XK\3"`kd  
    label 1 |j81?4<)v  
    hx = fldx(f)/maxfield Ctn 4q'Q  
    hy = fldy(f)/maxfield UhrRB  
    raytrace hx,hy,0,0 5\= y9Z- x  
    format 10.4 /&<V5?1|  
    print lZuH:AH  
    print "  X Field    = ", fldx(f), }i,r{Y]s]  
    print "  Y Field    = ", fldy(f) c#>(8#'.U  
    print "  X Chief    = ",rayx(n), zj(V\y&H  
    print "  Y Chief    = ",rayy(n) R :(-"GW'  
    xraymax = -9e9 T=)qD2?  
    yraymax = -9e9 &x[7?Y L  
    xraymin =  9e9 " :vEWp+g  
    yraymin =  9e9 .izq}q*P   
    xraytot = 0 co3\1[q"b  
    yraytot = 0 s5rD+g]E`  
    numray = 0 wMj #.Jh  
    numrayattempt = 0 s'oNW  
    px = -1 - delta pu+Q3NfR  
    label 2 jz! [#-G  
    px = px + delta yi*EobP  
    py = -1 - delta -fl6M-CYX  
    label 3 ZZ!">AN`^  
    py = py + delta Eh ";irE  
    rad = px*px + py*py ! xG*W6IT  
    if rad <= 0.9999999 (wM` LE(Ks  
            raytrace hx, hy, px, py KyfH8Na?  
            numrayattempt = numrayattempt+1 W>i"p~!  
            if !rayv(n)                                              **************************** o.Rv<a5.L  
                    numray = numray + 1 ]/H6%"CTa  
                    x = rayx(n) 9$Z0mzk  
                    y = rayy(n) 9aY8`B  
                    if (x < xraymin) then xraymin = x (/N&_r4x  
                    if (x > xraymax) then xraymax = x aY#?QjL  
                    if (y < yraymin) then yraymin = y 1kKfFpN  
                    if (y > yraymax) then yraymax = y _1&Ar4:  
                    xraytot = xraytot + x xE w\'tH  
                    yraytot = yraytot + y 4|E^ #C  
            endif -PAEJn5$O  
    endif C[G+SA1&W  
    if py < 1.0 then goto 3 CDRbYO  
    if px < 1.0 then goto 2 flo$[]`.7  
    if numray m;]wKd"  
            format 14.8 } P ,"  
            print "  X Centroid = ",xraytot/numray, _OTVQo Ap  
            print "  Y Centroid = ",yraytot/numray n)98NSVDbT  
            print "  X Middle   = ",(xraymax+xraymin)/2, - ~|Gwr"  
            print "  Y Middle   = ",(yraymax+yraymin)/2 Leb|YX  
            format .0 ;//9,x9;t  
            print "  ",numray, " out of ", numrayattempt," rays made it through." ]FZPgO'G  
    else e5>'H!)  
            print "  No rays made it through!" ;6Yg}L  
    endif xF8n=Lc  
    f=f+1 H{vKk  
    if f<= nfld() then goto 1 $VvgzjrH  
    print Vv}R S@4U  
    print "All field positions done!" ^ls@Gr7`P  
    FORMAT 0.1 `.@sux!lu  
    print "Elapsed time ", ETIM(), " seconds." X!ruQem /  
     
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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 w W@e#:  
    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 b w P=f.  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  90Ki.K0  
    e'3V4iU]  
    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 2RkW/) A9