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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············· Mz@{_*2   
    wNB?3v{n  
    macro 正文:········· w$]G$e  
    ! centroid.zpl U2Ve @.  
    ! 7Cz~nin>7  
    ! Written by Kenneth Moore 9/1/92 B=SA +{o  
    ! Added TIMER function 4/18/96 lhUGo =  
    ! a>4/2#J  
    TIMER ~q>jXi  
    ! LjKxznn o  
    ! The delta controls how many rays will be traced. A _u]Z+H"  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. RdCGK?s  
    ! (,At5 T  
    delta = .025 \!ZA#7  
    ! p=+Y7NE)  
    print "This program computes the chief ray coordinates," 1k[_DQ=^l1  
    print "centroid coordinates, and middle coordinates for" `bP`.Wm  
    print "the primary wave spot at each field position." O,$*`RZpx  
    maxfield = maxf() 0'sZ7f<e7  
    if maxfield == 0 then maxfield = 1 &4Z8df!  
    n = nsur() CD1Ma8I8  
    f = 1 r=j?0k '}]  
    label 1 j{C~wy!J  
    hx = fldx(f)/maxfield #2=l\y-#  
    hy = fldy(f)/maxfield 757&bH|a  
    raytrace hx,hy,0,0 8mX!mYO3c  
    format 10.4 ko%mZ0Y  
    print D+T/ Z)  
    print "  X Field    = ", fldx(f), 2> a&m>  
    print "  Y Field    = ", fldy(f) lMv6QL\>'  
    print "  X Chief    = ",rayx(n), FSuC)Xg  
    print "  Y Chief    = ",rayy(n) FB k7Cn!  
    xraymax = -9e9 4LSs WO<@  
    yraymax = -9e9 !@C-|=9G  
    xraymin =  9e9 xQR/Xp!h  
    yraymin =  9e9 6(rm%c  
    xraytot = 0 Df"PNUwA"  
    yraytot = 0 s}zR@ !`  
    numray = 0 Y3@+aA  
    numrayattempt = 0 >~g-  
    px = -1 - delta [8u9q.IZ  
    label 2 CvIuH=,  
    px = px + delta = MByD&o`  
    py = -1 - delta >s<Bu'r  
    label 3 /qdvzv%T  
    py = py + delta R0t!y3r&N  
    rad = px*px + py*py D#nHg  
    if rad <= 0.9999999 4s{=/,f  
            raytrace hx, hy, px, py |AvPg  
            numrayattempt = numrayattempt+1 m mF0RNE  
            if !rayv(n)                                              **************************** (N/u@M  
                    numray = numray + 1 4m~y%> &  
                    x = rayx(n) O%%Q./oh  
                    y = rayy(n) 65Z}Hf  
                    if (x < xraymin) then xraymin = x QRQ{Bq}#  
                    if (x > xraymax) then xraymax = x F`KXG$  
                    if (y < yraymin) then yraymin = y (-ELxshd  
                    if (y > yraymax) then yraymax = y ]ty$/{hx'  
                    xraytot = xraytot + x \7\sx:!$  
                    yraytot = yraytot + y 0MpW!|E  
            endif +B{u,xgg  
    endif -axKnfj  
    if py < 1.0 then goto 3 E}Cz(5  
    if px < 1.0 then goto 2 Zx8$M5  
    if numray e;v7!X  
            format 14.8 .QY>@b\  
            print "  X Centroid = ",xraytot/numray, H~*N:$C  
            print "  Y Centroid = ",yraytot/numray M|nLD+d~8  
            print "  X Middle   = ",(xraymax+xraymin)/2, X$xf@|<a  
            print "  Y Middle   = ",(yraymax+yraymin)/2 0L;,\&*u  
            format .0 j6s j2D  
            print "  ",numray, " out of ", numrayattempt," rays made it through." ?* ~4~ZE E  
    else Ztk%uc8_lM  
            print "  No rays made it through!" Dx\~#$S!=  
    endif &q&z$Gc;m  
    f=f+1 !I|_vJ@<  
    if f<= nfld() then goto 1 ; &rxwL  
    print \HxF?i "   
    print "All field positions done!" FM%WMyb[  
    FORMAT 0.1 .joCZKO  
    print "Elapsed time ", ETIM(), " seconds." )P? 0YC  
     
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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 i=5!taxu}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 F)l1%F Cm  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  "T8b.ng  
    Dir# [j  
    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 r-hb]!t