[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············· |nBs(>b  
#,h0K  
macro 正文：········· &WZ&Tt/)/  
! centroid.zpl .'NTy R  
! <R?S  
! Written by Kenneth Moore 9/1/92 #gVWLm<  
! Added TIMER function 4/18/96 7^C&2k5G  
! :eIQF7-  
TIMER gv){&=9/  
! {E0\mZ2  
! The delta controls how many rays will be traced. A }Fsr"RER@{  
! delta of .025 will trace a 80 x 80 grid in the pupil. \1hQ7:f;\  
! 3vdFO: j  
delta = .025 l{*Ko~g  
! 0Oa&vx  
print "This program computes the chief ray coordinates," LtUvFe  
print "centroid coordinates, and middle coordinates for" *fz#B/_o  
print "the primary wave spot at each field position." Yl=-
j  
maxfield = maxf() R'8S)'l  
if maxfield == 0 then maxfield = 1 yMt:
L)+  
n = nsur() TfHL'u9B  
f = 1 ^^F 8M0k3  
label 1 frc9  
hx = fldx(f)/maxfield HPg%v|  
hy = fldy(f)/maxfield _l2_) ~  
raytrace hx,hy,0,0 LTB rg[X  
format 10.4 {yDQncq'^  
print FY`t7_Y?GV  
print "  X Field    = ", fldx(f), x~=Mn%Ew0  
print "  Y Field    = ", fldy(f) <s%Ft  
print "  X Chief    = ",rayx(n), 9bhubx\^/  
print "  Y Chief    = ",rayy(n) iCCe8nK  
xraymax = -9e9 WNt':w^_  
yraymax = -9e9 ?Qx4Z3n  
xraymin =  9e9 56Z  
yraymin =  9e9 UyFC\vQ  
xraytot = 0 _Tm]tlV  
yraytot = 0 ;NE4G;px4<  
numray = 0 P
- +]4\
 
numrayattempt = 0 H>},{ z  
px = -1 - delta PpH ;p.-!d  
label 2 ,.h@tN<C  
px = px + delta 5{#s<%b.  
py = -1 - delta T+B8SZw#}!  
label 3 /;{L~f=et)  
py = py + delta 0+u>"7T  
rad = px*px + py*py ,Xr`tQ<@  
if rad <= 0.9999999 9dm<(I}  
        raytrace hx, hy, px, py "n)AlAV@  
        numrayattempt = numrayattempt+1 6}V
Fob#h8  
        if !rayv(n)                                              **************************** ooBBg@  
                numray = numray + 1 IZ\fvYp  
                x = rayx(n) v??$z#1F3  
                y = rayy(n) sT "q]  
                if (x < xraymin) then xraymin = x &n#yxv4  
                if (x > xraymax) then xraymax = x {>
8?6m-  
                if (y < yraymin) then yraymin = y K|OPtYeb  
                if (y > yraymax) then yraymax = y e]CoYuPr  
                xraytot = xraytot + x D_1O4/  
                yraytot = yraytot + y nA{yH}D4  
        endif a>rDJw:  
endif 42p1P6d  
if py < 1.0 then goto 3 UvM4-M%2JN  
if px < 1.0 then goto 2 h&n1
}W+  
if numray xRdx` YYu  
        format 14.8 _*n `*"  
        print "  X Centroid = ",xraytot/numray, H?!DcUg CC  
        print "  Y Centroid = ",yraytot/numray NUJ $)qNA  
        print "  X Middle   = ",(xraymax+xraymin)/2, L[
A?W  
        print "  Y Middle   = ",(yraymax+yraymin)/2 }/h&`0z`  
        format .0 :Ocw+X3  
        print "  ",numray, " out of ", numrayattempt," rays made it through." t`{T:Tjc  
else */_'pt  
        print "  No rays made it through!" $zU
%?[J  
endif WUo\jm[yr  
f=f+1 FvYciU!  
if f<= nfld() then goto 1 (xoYYO  
print bar=^V)  
print "All field positions done!" )B)f`(SA"<  
FORMAT 0.1 c8Ud<M .  
print "Elapsed time ", ETIM(), " seconds." ^sFO[cYo  

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 B /w&Lo  
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%_{   
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  ocJG4#  

)Hmf=eoc  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 ;VAyH('~