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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············· )YEAk@h@  
    8493Sw  
    macro 正文:········· d38o*+JCf  
    ! centroid.zpl !zOj`lx  
    ! fWEQ vQ  
    ! Written by Kenneth Moore 9/1/92 ~Oq _lM  
    ! Added TIMER function 4/18/96 MFa/%O_*  
    ! >&+V[srfD  
    TIMER d]sqj\Q57  
    ! &)Qq%\EP4  
    ! The delta controls how many rays will be traced. A |X>'W"Mn  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. hq {{XQ  
    ! B$2GEg]Ri  
    delta = .025 n5"oXpcIx  
    ! u4 es8"  
    print "This program computes the chief ray coordinates," *)w+xWmM3w  
    print "centroid coordinates, and middle coordinates for" 00i MU  
    print "the primary wave spot at each field position." L%$ -?O|  
    maxfield = maxf() Hm>cKPZ)  
    if maxfield == 0 then maxfield = 1 w]qM  
    n = nsur() [8Y7Q5Had  
    f = 1 3]kM&lK5\  
    label 1 AC <2.i_  
    hx = fldx(f)/maxfield oZ/"^5  
    hy = fldy(f)/maxfield _PPC?k{z!  
    raytrace hx,hy,0,0 [N~7PNdS  
    format 10.4 |(W wh$  
    print 5>%^"f  
    print "  X Field    = ", fldx(f), '"7b;%EN'  
    print "  Y Field    = ", fldy(f) N}VoO0I  
    print "  X Chief    = ",rayx(n), tx[;& ;  
    print "  Y Chief    = ",rayy(n) V2?{ebx`  
    xraymax = -9e9 `_)9eGQ  
    yraymax = -9e9 [Uq`B &F:  
    xraymin =  9e9 ".|8(Y  
    yraymin =  9e9 *jc >?)k  
    xraytot = 0 ZMMx)}hS  
    yraytot = 0 |=:@<0.'  
    numray = 0 X4:84  
    numrayattempt = 0 Wx3DWY;  
    px = -1 - delta DI;LhS*z  
    label 2 <HJLs+C  
    px = px + delta S"Vr+x?  
    py = -1 - delta 3v3cK1K@oE  
    label 3 & ;5f/  
    py = py + delta rC|nE=i  
    rad = px*px + py*py e^\(bp+83  
    if rad <= 0.9999999 |j'@no_rv  
            raytrace hx, hy, px, py %jj-\Gz!  
            numrayattempt = numrayattempt+1 VWdTnu  
            if !rayv(n)                                              **************************** ?$A)lWk(  
                    numray = numray + 1 6w3[PNd  
                    x = rayx(n) c{D<+XM  
                    y = rayy(n) R3_;!/1  
                    if (x < xraymin) then xraymin = x [W[awGf  
                    if (x > xraymax) then xraymax = x 9b-4BON{P  
                    if (y < yraymin) then yraymin = y (]mBAQ#hw  
                    if (y > yraymax) then yraymax = y NA@Z$Gy  
                    xraytot = xraytot + x T^d<vH  
                    yraytot = yraytot + y $M-"az]  
            endif ScInOPb'K  
    endif Gl{2"!mt=  
    if py < 1.0 then goto 3 lv.h?"Ml  
    if px < 1.0 then goto 2 p|0SA=?k"  
    if numray [}Rs  
            format 14.8 :& $v.#  
            print "  X Centroid = ",xraytot/numray, x5rm 2C  
            print "  Y Centroid = ",yraytot/numray 33}p02#  
            print "  X Middle   = ",(xraymax+xraymin)/2, o"N\l{#s  
            print "  Y Middle   = ",(yraymax+yraymin)/2 S>HfyZ&Pc  
            format .0 F DGzh/  
            print "  ",numray, " out of ", numrayattempt," rays made it through." Bz,Xg-k+  
    else I A=\c  
            print "  No rays made it through!" VD,g3B p  
    endif N1:)Z`r  
    f=f+1 ;L],i<F  
    if f<= nfld() then goto 1 c2gZ<[~  
    print vls+E o]  
    print "All field positions done!" b83m'`vRM  
    FORMAT 0.1 |U~\;m@  
    print "Elapsed time ", ETIM(), " seconds." ^#h ;bX#  
     
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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 *M~BN}.  
    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 h%>yErs  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  V%[34G  
    MW|:'D`  
    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 8QQh1q2