[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············· N6i Q8P-  
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macro 正文：········· $X
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! centroid.zpl )irEM  
! JYHl,HH#z  
! Written by Kenneth Moore 9/1/92 [FR`Z=%  
! Added TIMER function 4/18/96 `*1p0~cu  
! j3E7zRm] \  
TIMER 4ID5q~  
! Q
j3EXb  
! The delta controls how many rays will be traced. A :&."ttf=  
! delta of .025 will trace a 80 x 80 grid in the pupil. #Ki[$bS~6  
! ^SrJu:Q_  
delta = .025 =]0&i]z[.  
! !'*-$e  
print "This program computes the chief ray coordinates," Zp=U W*g^  
print "centroid coordinates, and middle coordinates for" 3AN/ H  
print "the primary wave spot at each field position." j/?kL{B  
maxfield = maxf() g{&ui.ml&  
if maxfield == 0 then maxfield = 1 PALc;"]O  
n = nsur() toC^LZgZ_6  
f = 1 4 "'~NvO  
label 1 T1=fNF  
hx = fldx(f)/maxfield B:'US&6Lf'  
hy = fldy(f)/maxfield YS"=yye3e  
raytrace hx,hy,0,0 9CD_os\h  
format 10.4 0YDR1dO(*  
print C!bUI8x z  
print "  X Field    = ", fldx(f), 1
/J=uH  
print "  Y Field    = ", fldy(f) t
;\Y{`  
print "  X Chief    = ",rayx(n), }:)&u|d_  
print "  Y Chief    = ",rayy(n) &0JI!bR(  
xraymax = -9e9 f(MO_Sj]  
yraymax = -9e9 BLD gt~h#  
xraymin =  9e9 rmg}N  
yraymin =  9e9 m!HJj>GEo  
xraytot = 0 vUM4S26"NT  
yraytot = 0 Wvf ^N(  
numray = 0  Mb~
F%_  
numrayattempt = 0 cSV aI  
px = -1 - delta Lw>N rY(Y  
label 2 ;uP:"k  
px = px + delta f._ua>v,f  
py = -1 - delta $-sHWYZ  
label 3 qY!Zt_Be6  
py = py + delta =B@2#W#  
rad = px*px + py*py )\$|X}uny&  
if rad <= 0.9999999 Btcy)LRk  
        raytrace hx, hy, px, py 8bld3p"^  
        numrayattempt = numrayattempt+1 U # qK.  
        if !rayv(n)                                              **************************** *0=j?~&  
                numray = numray + 1 Er?&Y,o  
                x = rayx(n) ?&1!vz  
                y = rayy(n) Xc&9Glf  
                if (x < xraymin) then xraymin = x c{w2Gt!  
                if (x > xraymax) then xraymax = x ]~siaiN[  
                if (y < yraymin) then yraymin = y EXqE~afm2  
                if (y > yraymax) then yraymax = y f) L  
                xraytot = xraytot + x $f7l34Sf3  
                yraytot = yraytot + y t*w/{|yO  
        endif 92oFlEJ  
endif :d'8x  
if py < 1.0 then goto 3 }k.Z~1y  
if px < 1.0 then goto 2 =@~Y12o?%  
if numray a9V,es"BWQ  
        format 14.8 ey$&;1x#5  
        print "  X Centroid = ",xraytot/numray, ;;/{xvQ.1  
        print "  Y Centroid = ",yraytot/numray G]&qx`TBK  
        print "  X Middle   = ",(xraymax+xraymin)/2, 7HYwLG:\~  
        print "  Y Middle   = ",(yraymax+yraymin)/2 jAlv`uB|G"  
        format .0 63IM]J  
        print "  ",numray, " out of ", numrayattempt," rays made it through." R.<g3"Lm>  
else 4{|"7/PE1  
        print "  No rays made it through!" SOA,kwHRe  
endif am6L8N  
f=f+1 "E4a=YH_  
if f<= nfld() then goto 1 {]4LULq  
print 8Z=R)asGS  
print "All field positions done!" 7WzxA=*#  
FORMAT 0.1 5]:U9ts#  
print "Elapsed time ", ETIM(), " seconds." Nu)NqFG,  

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 ]\HvKCN}  
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 &BSn?  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  M)(DZ}  

+aAc9'k  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 rSNi@;