[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············· u #7AB>wi{  
0+S'i82=M  
macro 正文：········· P`M1sON~  
! centroid.zpl [dXRord  
! 'zTa]y]a  
! Written by Kenneth Moore 9/1/92 z.kBQ{P  
! Added TIMER function 4/18/96 E__A1j*gd  
! ^EKf_w-v  
TIMER S'vUxOAo  
! 3-2?mV>5  
! The delta controls how many rays will be traced. A d _koF-7  
! delta of .025 will trace a 80 x 80 grid in the pupil. 
faI4`.i  
! wijY]$  
delta = .025 %!)Dk<  
! 9}Zi_xK&|e  
print "This program computes the chief ray coordinates," N" oJ3-~  
print "centroid coordinates, and middle coordinates for" oRCD8b?  
print "the primary wave spot at each field position." z[_Gg8e  
maxfield = maxf() ^kj%Ekt7  
if maxfield == 0 then maxfield = 1 885 ,3AdA  
n = nsur() 1uhSP!b  
f = 1 rkWW)h(e  
label 1 px_%5^zRQ  
hx = fldx(f)/maxfield \R<OT%8  
hy = fldy(f)/maxfield u\G\KASUK%  
raytrace hx,hy,0,0 Z7R+'OC  
format 10.4 '~'3x4B
o  
print j-etEWOTr  
print "  X Field    = ", fldx(f), h%@#jvh?4  
print "  Y Field    = ", fldy(f) V?cUQghHg  
print "  X Chief    = ",rayx(n), jl4rEzVu  
print "  Y Chief    = ",rayy(n) R0mWVgoz  
xraymax = -9e9 u@zBE? g  
yraymax = -9e9 >pA
9'KWs]  
xraymin =  9e9 sQe>LNp,G  
yraymin =  9e9 S-+^L|  
xraytot = 0 ktKT=(F&  
yraytot = 0 \<A@Nf"  
numray = 0 -n~VMLd?@  
numrayattempt = 0 Z?-l-sK  
px = -1 - delta 7e&%R4{b  
label 2 Zx]"2U#  
px = px + delta ouUU(jj02  
py = -1 - delta 3^zOG2  
label 3 ) 4'@=q  
py = py + delta JEes'H}Y  
rad = px*px + py*py oMi"X"C:q  
if rad <= 0.9999999 89)rss  
        raytrace hx, hy, px, py ?Yp: h  
        numrayattempt = numrayattempt+1 }KHdlhD  
        if !rayv(n)                                              **************************** 2xd G&}$fa  
                numray = numray + 1 #yVY!+A  
                x = rayx(n) KmkPq]  
                y = rayy(n) W7"ks(  
                if (x < xraymin) then xraymin = x _#+~#U%5n  
                if (x > xraymax) then xraymax = x 5q?ZuAAA  
                if (y < yraymin) then yraymin = y +d736lLe%  
                if (y > yraymax) then yraymax = y f"5vpU^5*  
                xraytot = xraytot + x H;$OCDRC  
                yraytot = yraytot + y DFt1{qS8@u  
        endif uIvE~<  
endif m.p{+_@M&  
if py < 1.0 then goto 3 UpS`KgF"v  
if px < 1.0 then goto 2 'DQKpk'  
if numray &a p{|>3  
        format 14.8 OE/O:F:1j  
        print "  X Centroid = ",xraytot/numray, /wL}
+  
        print "  Y Centroid = ",yraytot/numray 3B|o   
        print "  X Middle   = ",(xraymax+xraymin)/2, BUcze\+  
        print "  Y Middle   = ",(yraymax+yraymin)/2 }ya9 +?I  
        format .0 l7P~_X_)"  
        print "  ",numray, " out of ", numrayattempt," rays made it through." kGMI ?  
else eVDI7W:(Sn  
        print "  No rays made it through!" _S#uxgL<  
endif Hay`lA2@  
f=f+1 ?8n`4yO0  
if f<= nfld() then goto 1 B@l/'$G  
print ,!3G  
print "All field positions done!" 7!`,P  
FORMAT 0.1 u%S&EuX  
print "Elapsed time ", ETIM(), " seconds." Q': }'CI  

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 2*5Z| 3aX  
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 SY_T\ }  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  iV[g.sP-  

0n|op:]BHM  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 UP}Ys*