[讨论]macros [复制链接]

       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············· W~R_- ]k@g  
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macro 正文：········· rHN>fySn7  
! centroid.zpl 7;c{lQOj}  
! Fx)]AJ~[t  
! Written by Kenneth Moore 9/1/92 _MnMT9  
! Added TIMER function 4/18/96 b(K.p?bt  
! IRXpk6|  
TIMER &ViIxJZ1$  
! "RZ)pav?  
! The delta controls how many rays will be traced. A C+O`3wPZp  
! delta of .025 will trace a 80 x 80 grid in the pupil. >q4nQ/eP  
! vy6NH5Q  
delta = .025 (\#j3Y)r  
! (w@|:0t^y[  
print "This program computes the chief ray coordinates," M[HPHNsA&  
print "centroid coordinates, and middle coordinates for" ?=f\oH$  
print "the primary wave spot at each field position." F0]= z-  
maxfield = maxf() QMHeU>  
if maxfield == 0 then maxfield = 1 9sJbz=o]r  
n = nsur() Wf>UI)^n  
f = 1 7ugmZO}lL  
label 1 1rTA0+
h  
hx = fldx(f)/maxfield :cIE8<\%  
hy = fldy(f)/maxfield fM \T^X  
raytrace hx,hy,0,0 nvgo6*  
format 10.4 !|,=rM9x  
print ~r&Q\G  
print "  X Field    = ", fldx(f), H;Z{R@kf  
print "  Y Field    = ", fldy(f) <&b ~(f  
print "  X Chief    = ",rayx(n), 7A7K:,c  
print "  Y Chief    = ",rayy(n) 2 R1S>X  
xraymax = -9e9 g)xzy^2e  
yraymax = -9e9 %|r@q  
xraymin =  9e9 Mp"] =  
yraymin =  9e9 d<fS52~l  
xraytot = 0 ZVgR7+`]#  
yraytot = 0 1b* dC;<  
numray = 0 oa1&9  
numrayattempt = 0 RSzp-sKB  
px = -1 - delta GsE?<3  
label 2 q{n~s=  
px = px + delta e7pN9tXGf  
py = -1 - delta 7q$9\RR5  
label 3 /8J2,8vZ  
py = py + delta )<IbQH|_  
rad = px*px + py*py D[:7B:i  
if rad <= 0.9999999 K#+TCZ,  
        raytrace hx, hy, px, py &!KJrQ  
        numrayattempt = numrayattempt+1 2ggW4`"c  
        if !rayv(n)                                              **************************** "x3_cA~  
                numray = numray + 1 ",Ek| z  
                x = rayx(n) R*VZ=i  
                y = rayy(n) E(8O3*=  
                if (x < xraymin) then xraymin = x I`DdhMi7  
                if (x > xraymax) then xraymax = x QO%>RG  
                if (y < yraymin) then yraymin = y _mA[^G=gY  
                if (y > yraymax) then yraymax = y Tb:n6a@  
                xraytot = xraytot + x {RwwSqJ  
                yraytot = yraytot + y I{B8'n{cN  
        endif "c1vW<;  
endif ls 'QfJm  
if py < 1.0 then goto 3 V +*Vi^  
if px < 1.0 then goto 2 ww+XE2,  
if numray ax'Dp{Q  
        format 14.8 u&2uQ-T0  
        print "  X Centroid = ",xraytot/numray, wz>j>e6k`  
        print "  Y Centroid = ",yraytot/numray i&Xr+Zsec"  
        print "  X Middle   = ",(xraymax+xraymin)/2, c\]h YKA  
        print "  Y Middle   = ",(yraymax+yraymin)/2 h, +2Mc<  
        format .0 &'T7 ~M:  
        print "  ",numray, " out of ", numrayattempt," rays made it through." g7_a8_  
else BU]9eF!>h  
        print "  No rays made it through!" \AkeC6[D  
endif )x?F1/  
f=f+1 {lx^57v  
if f<= nfld() then goto 1 Ca?pK_Y  
print B6OggJ9Iq  
print "All field positions done!" dKZffDTZ  
FORMAT 0.1 VUagZ7p  
print "Elapsed time ", ETIM(), " seconds." vJmE}  

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 N ?0V0B  
的影響，因此須知道漸暈才能算出chief ray位置。

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 y$K!g&lGA  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  /_aFQ>.4n  

V.\do"m  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 |SQ5Sb