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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············· |h\e(_G \  
    TUw^KSa  
    macro 正文:········· V}. uF,>V  
    ! centroid.zpl iKnH6} `?U  
    ! me_DONW  
    ! Written by Kenneth Moore 9/1/92 9TIyY`2!  
    ! Added TIMER function 4/18/96 -icOg6%  
    ! .{1G"(z  
    TIMER :2pd2S  
    ! &=Gz[1 L  
    ! The delta controls how many rays will be traced. A WS/^WxRY  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. 2?u>A3^R  
    ! AON";&dLq-  
    delta = .025 J*o :RnB  
    ! cv=nGFx6  
    print "This program computes the chief ray coordinates," %0fF_OU  
    print "centroid coordinates, and middle coordinates for" 1P. W 34  
    print "the primary wave spot at each field position." MUhC6s\F  
    maxfield = maxf() d rnqX-E;  
    if maxfield == 0 then maxfield = 1 X^r5su?  
    n = nsur()  }fpK{db  
    f = 1 jV]'/X<  
    label 1 ([R}s/)$  
    hx = fldx(f)/maxfield (o~f6pNB,  
    hy = fldy(f)/maxfield 1L]7*NJe  
    raytrace hx,hy,0,0 Z.am^Q^Y!  
    format 10.4 1t_$pDF}  
    print 7-6Z\.-  
    print "  X Field    = ", fldx(f), }`8g0DPuD9  
    print "  Y Field    = ", fldy(f) 9I0/KuZd O  
    print "  X Chief    = ",rayx(n), gh=s#DQsFw  
    print "  Y Chief    = ",rayy(n) l+Dl~o}  
    xraymax = -9e9 a*REx_gLG  
    yraymax = -9e9 kMWu%,s4  
    xraymin =  9e9 8 !Pk1P  
    yraymin =  9e9 q>/# P5V  
    xraytot = 0 f#_XR  
    yraytot = 0 (Z"QHfO'  
    numray = 0 (f#QETiV  
    numrayattempt = 0 9_h 3<3e  
    px = -1 - delta nF~</>  
    label 2 @=,2{JF*6  
    px = px + delta 0#lw?sv  
    py = -1 - delta hLPg=8nJ_  
    label 3 \kqa4{7U(  
    py = py + delta @[u!  
    rad = px*px + py*py et(/`  
    if rad <= 0.9999999 8>S"aHt 7  
            raytrace hx, hy, px, py vDZhoD=VR  
            numrayattempt = numrayattempt+1 TU&6\]yF_  
            if !rayv(n)                                              **************************** j}uFp|df<  
                    numray = numray + 1 E/|]xKG  
                    x = rayx(n) Qj5~ lX`W  
                    y = rayy(n) E{kh)-  
                    if (x < xraymin) then xraymin = x iwWy]V m7  
                    if (x > xraymax) then xraymax = x jY EB`&  
                    if (y < yraymin) then yraymin = y EF=.L{  
                    if (y > yraymax) then yraymax = y zvf:*Na")  
                    xraytot = xraytot + x 3t22KY[`  
                    yraytot = yraytot + y Q}FDu,  
            endif Zq=t&$*  
    endif OLJb8kO  
    if py < 1.0 then goto 3 u3vBMe0v[  
    if px < 1.0 then goto 2 Z)EmX=  
    if numray bq[j4xH0X  
            format 14.8 ;<`F[V Zau  
            print "  X Centroid = ",xraytot/numray, pW7vY)hj  
            print "  Y Centroid = ",yraytot/numray z"*X/T  
            print "  X Middle   = ",(xraymax+xraymin)/2, XIh2Y\33ys  
            print "  Y Middle   = ",(yraymax+yraymin)/2 LWHP31{R  
            format .0 nkTH#WTfR  
            print "  ",numray, " out of ", numrayattempt," rays made it through." tRRPNY  
    else _5%SYxF*y  
            print "  No rays made it through!" 0h-holUf}~  
    endif a]'sby  
    f=f+1 \bYuAE1q  
    if f<= nfld() then goto 1 rGuhYYvK  
    print 8*kZ.-T B  
    print "All field positions done!" hm3,?FMbq  
    FORMAT 0.1 yaD<jc(O  
    print "Elapsed time ", ETIM(), " seconds." >Z?fX  
     
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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 /]"&E"X"  
    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 q88p~Ccoa  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  IrQ8t!  
    FQNhn+A  
    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 "F>-W \%