[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············· ``$Dgj[  
kU{+@MA;  
macro 正文：········· dmI~$*  
! centroid.zpl mSF>~D1_  
! OC34@YUj[  
! Written by Kenneth Moore 9/1/92 @M-i$ q[4  
! Added TIMER function 4/18/96 4r&DW'  
! ?~X*\  
TIMER ~~>`WA\G5,  
! }Q&zYC]d  
! The delta controls how many rays will be traced. A a9]F.Jm  
! delta of .025 will trace a 80 x 80 grid in the pupil. .<7M4Z  
! U l8G R  
delta = .025 v|fA)Ww  
! go >*n\  
print "This program computes the chief ray coordinates," N^</:R  
print "centroid coordinates, and middle coordinates for" R+{QZ'K.qg  
print "the primary wave spot at each field position." hEUS&`K  
maxfield = maxf() 4efIw<1_  
if maxfield == 0 then maxfield = 1 /e5' YVP  
n = nsur() }MQNzaXY^  
f = 1 (mbC! !>  
label 1 {9?++G"\  
hx = fldx(f)/maxfield KYa}k0tVAp  
hy = fldy(f)/maxfield qaJ$0,]H+  
raytrace hx,hy,0,0 r
iw
0w  
format 10.4 .)=T1^[hI  
print NZT2ni4  
print "  X Field    = ", fldx(f), >=Bl/0YH  
print "  Y Field    = ", fldy(f) [bM$n m  
print "  X Chief    = ",rayx(n), 5&A{I
N  
print "  Y Chief    = ",rayy(n) :kU#5Aj gK  
xraymax = -9e9 DBTeV-G9~R  
yraymax = -9e9 vge4&H3a&  
xraymin =  9e9 VWhq+8z  
yraymin =  9e9 Q/D?U[G  
xraytot = 0 N;Hoi8W  
yraytot = 0 ]hE%Tk-
  
numray = 0
a(.q=W  
numrayattempt = 0
HGycF|]2  
px = -1 - delta , e^&,5b  
label 2 hc7"0mVd{  
px = px + delta xXb7/.*qE  
py = -1 - delta 7x>\/l(  
label 3 Pgug!![  
py = py + delta (F=/r]Q  
rad = px*px + py*py &<nj~BL  
if rad <= 0.9999999 PmjN!/  
        raytrace hx, hy, px, py h]
6m+oPW  
        numrayattempt = numrayattempt+1 z`]sWi F0  
        if !rayv(n)                                              **************************** lZ,w#sqbY  
                numray = numray + 1 <Wrn/%tL  
                x = rayx(n) =Jyi9VN=&  
                y = rayy(n) IKo,P$ PE  
                if (x < xraymin) then xraymin = x GN1Q\8)o  
                if (x > xraymax) then xraymax = x uuaoBf  
                if (y < yraymin) then yraymin = y ,I|3.4z  
                if (y > yraymax) then yraymax = y ]mzghH:E  
                xraytot = xraytot + x wWYo\WH'  
                yraytot = yraytot + y o?,c#g  
        endif (V(8E%<c  
endif C>NLZM
T  
if py < 1.0 then goto 3 8kdJ;%^N  
if px < 1.0 then goto 2 \u4`6EYF?  
if numray eP(|]Rk  
        format 14.8 a~*wZJ  
        print "  X Centroid = ",xraytot/numray, q%S^3C&  
        print "  Y Centroid = ",yraytot/numray kR0
/jEz C  
        print "  X Middle   = ",(xraymax+xraymin)/2, =|+%^)E  
        print "  Y Middle   = ",(yraymax+yraymin)/2 ,vDSY N6  
        format .0 )#os!Ns_A  
        print "  ",numray, " out of ", numrayattempt," rays made it through." 5ho!}K  
else >mAi/TZC  
        print "  No rays made it through!" E$"`|Df  
endif N({0"7  
f=f+1 X_HU?Q_N  
if f<= nfld() then goto 1 6N\f>c  
print F:~k4uTW\b  
print "All field positions done!" ptQCqQ1_d  
FORMAT 0.1 #fVk;]u`[3  
print "Elapsed time ", ETIM(), " seconds." 9P1!<6mN\  

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 GMKY1{   
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 ipD/dx.  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  ]$)U~)T iW  

]--" K{  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 n{=Nf|=