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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············· FG{,l=Z0  
    S]|sK Y  
    macro 正文:········· [7~AWZU3  
    ! centroid.zpl ,!alNNY  
    ! }CMGK{  
    ! Written by Kenneth Moore 9/1/92 vu.?@k@  
    ! Added TIMER function 4/18/96 U^ , !  
    ! dlCiqY: }  
    TIMER 8#tuB8>  
    ! 1n}#54  
    ! The delta controls how many rays will be traced. A 53ZbtEwhwr  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. oqysfLJ  
    ! _'1 ]CoR  
    delta = .025 oIx|)[  
    ! @x}^2FE  
    print "This program computes the chief ray coordinates," :[(%4se  
    print "centroid coordinates, and middle coordinates for" @RszPH1B  
    print "the primary wave spot at each field position." u/S>*E  
    maxfield = maxf() ~/)]`w  
    if maxfield == 0 then maxfield = 1 _F`JFMS  
    n = nsur() %HtgZeY  
    f = 1 DCZG'eb  
    label 1 f(blqO.@l  
    hx = fldx(f)/maxfield $oM>?h_ =  
    hy = fldy(f)/maxfield p%sizn  
    raytrace hx,hy,0,0 *s" OqTM]x  
    format 10.4 0%[IG$u)|  
    print EmrkaV-?k  
    print "  X Field    = ", fldx(f), 7)[Ve1;/N  
    print "  Y Field    = ", fldy(f) `[#id@Z1  
    print "  X Chief    = ",rayx(n), 7}~w9jK"F  
    print "  Y Chief    = ",rayy(n) 6)?u8K5%r  
    xraymax = -9e9 M&29J  
    yraymax = -9e9 ];6955I!  
    xraymin =  9e9 czu9a"M>X  
    yraymin =  9e9 SJh~4R\  
    xraytot = 0 y9R%%i  
    yraytot = 0 :;+_<pk  
    numray = 0 #|(>UM\  
    numrayattempt = 0 |94o P>d  
    px = -1 - delta \<`oW>  
    label 2 U?{oxy_[2  
    px = px + delta ;zo|. YD  
    py = -1 - delta /@1YlxKF  
    label 3 ~+t@7A=  
    py = py + delta >lQa"F=  
    rad = px*px + py*py W!O/t^H>  
    if rad <= 0.9999999 )fIG4#%\  
            raytrace hx, hy, px, py ^t7u4w!  
            numrayattempt = numrayattempt+1 .uS`RS8JM  
            if !rayv(n)                                              **************************** 3T0-RP*  
                    numray = numray + 1 zng.(]U/?H  
                    x = rayx(n) *U$]U0M  
                    y = rayy(n) C,eP!_O  
                    if (x < xraymin) then xraymin = x + jwk4BU  
                    if (x > xraymax) then xraymax = x ;UpJ_y)n8\  
                    if (y < yraymin) then yraymin = y ^W:a7cMw  
                    if (y > yraymax) then yraymax = y 0?/gEr  
                    xraytot = xraytot + x 0KgP'oWvY  
                    yraytot = yraytot + y c"lwFr9x7  
            endif !i (V.A  
    endif H,GjPIG  
    if py < 1.0 then goto 3 xl,% Z~[  
    if px < 1.0 then goto 2 u*=^>LD  
    if numray EZI#CLT[  
            format 14.8 P)f8 lU^z  
            print "  X Centroid = ",xraytot/numray, 1~~GF_l?  
            print "  Y Centroid = ",yraytot/numray k]r4b`x`  
            print "  X Middle   = ",(xraymax+xraymin)/2, .(cpYKFX  
            print "  Y Middle   = ",(yraymax+yraymin)/2 U*Y]cohh  
            format .0 YU[#4f~  
            print "  ",numray, " out of ", numrayattempt," rays made it through." uyk;]EYjHZ  
    else 9XDSL[[  
            print "  No rays made it through!" PcT]  
    endif \rxjvV4fcZ  
    f=f+1 YzG?K0O%  
    if f<= nfld() then goto 1 O9By5j 4  
    print ]*k ~jY,  
    print "All field positions done!" Bi \fB-|  
    FORMAT 0.1 "PRHQW  
    print "Elapsed time ", ETIM(), " seconds." z Gg)R  
     
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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 d{NMG)`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 v\G 7V  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  -"H$ &p~  
    f0^s<:*  
    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 ,vMAX?c