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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············· DA<F{n.Z:  
    &8[ZN$Xe"  
    macro 正文:········· !dU9sB2  
    ! centroid.zpl :a_BD  
    !  \#4m@  
    ! Written by Kenneth Moore 9/1/92 Tub1S v>J  
    ! Added TIMER function 4/18/96 q,[k7&HS  
    ! J>rka]*  
    TIMER E,{GU  
    ! :ozV3`%$(  
    ! The delta controls how many rays will be traced. A T n"e   
    ! delta of .025 will trace a 80 x 80 grid in the pupil. NH7`5mF$  
    ! FJP< bREQ  
    delta = .025 @ Ii-NmOr  
    ! 21r= = H$  
    print "This program computes the chief ray coordinates," j|:dYt`WM  
    print "centroid coordinates, and middle coordinates for" 4p.^'2m  
    print "the primary wave spot at each field position." ' |&>/dyq  
    maxfield = maxf() :.*HQt9N  
    if maxfield == 0 then maxfield = 1 `NBbTQtgO  
    n = nsur() K&=D-50%  
    f = 1 !Eq#[Gs  
    label 1 6X/wd k  
    hx = fldx(f)/maxfield "jMqt9ysN  
    hy = fldy(f)/maxfield C:]s;0$3'9  
    raytrace hx,hy,0,0 KQ&Y2l1*>>  
    format 10.4 "`pNH'   
    print aF!Ex  
    print "  X Field    = ", fldx(f), 'It?wB W  
    print "  Y Field    = ", fldy(f) et=7}K]l  
    print "  X Chief    = ",rayx(n), GL1'Zo  
    print "  Y Chief    = ",rayy(n) kw*)/$5]  
    xraymax = -9e9 P?kx  
    yraymax = -9e9 a6%@d_A  
    xraymin =  9e9 S}[l*7  
    yraymin =  9e9 xq}-m!nX  
    xraytot = 0 "!O1j r;  
    yraytot = 0 oL]mjo=jN  
    numray = 0 i3#'*7f%j  
    numrayattempt = 0 Y9F)`1 7  
    px = -1 - delta Hkdf$$\  
    label 2 H@GE)I>^@  
    px = px + delta OTj,O77k  
    py = -1 - delta tJNIr5o  
    label 3 YutQ]zYA.  
    py = py + delta H$!+A  
    rad = px*px + py*py GF8 -_X  
    if rad <= 0.9999999 ;B~P>n}}_]  
            raytrace hx, hy, px, py (&jW}1D  
            numrayattempt = numrayattempt+1 zJ+3g!  
            if !rayv(n)                                              **************************** s=D f `  
                    numray = numray + 1 u:@U $:sZ  
                    x = rayx(n) i31<].|kA*  
                    y = rayy(n) iK#/w1`  
                    if (x < xraymin) then xraymin = x 8V9 [a*9  
                    if (x > xraymax) then xraymax = x Oe51PEqn  
                    if (y < yraymin) then yraymin = y C-m*?))go  
                    if (y > yraymax) then yraymax = y %%%S"$t  
                    xraytot = xraytot + x `1Zhq+s  
                    yraytot = yraytot + y >c4/ ?YV  
            endif [:iv4>ZZ  
    endif 44\cI]!{  
    if py < 1.0 then goto 3 4U=75!>  
    if px < 1.0 then goto 2 54{q.I@n  
    if numray @Y}uZ'jt'  
            format 14.8 mk!Dozb/  
            print "  X Centroid = ",xraytot/numray, 8Hi!kc;f6>  
            print "  Y Centroid = ",yraytot/numray 7\ypW$Ot  
            print "  X Middle   = ",(xraymax+xraymin)/2, a8pY[)^c  
            print "  Y Middle   = ",(yraymax+yraymin)/2 [ %}u=}@  
            format .0 7G<t"'  
            print "  ",numray, " out of ", numrayattempt," rays made it through." =>|C~@C?  
    else ]5' d&f  
            print "  No rays made it through!" (CJ.BHu]  
    endif "7,FXTaer  
    f=f+1 N>|XS ,  
    if f<= nfld() then goto 1 +pf5\#l?  
    print H6K`\8/SeN  
    print "All field positions done!" !lTda<;]  
    FORMAT 0.1 V5mlJml2(  
    print "Elapsed time ", ETIM(), " seconds." wJeG(h  
     
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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 F'JY?  
    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 f/,>%j=Ms  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  l>gI&1)%  
    TL$EV>Nr  
    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 fDE%R={!n5