[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············· Vyy;mEBg  
>i&"{GZ  
macro 正文：········· t<8vgdD  
! centroid.zpl 4I"%GN[tA  
!
:mP%qG9U  
! Written by Kenneth Moore 9/1/92 _FpZc?=  
! Added TIMER function 4/18/96 x?10^~R  
! ]0[Gc \h}  
TIMER 0}LBnV  
! 2pr#qh8  
! The delta controls how many rays will be traced. A u.\FNa  
! delta of .025 will trace a 80 x 80 grid in the pupil. LWH(bs9U  
! "gt-bo.,  
delta = .025 WG~|sLg  
! ub/Z'!  
print "This program computes the chief ray coordinates," #6g9@tE  
print "centroid coordinates, and middle coordinates for" qg7qTF&  
print "the primary wave spot at each field position." h=?V)WSM  
maxfield = maxf() 6_UCRo5h%  
if maxfield == 0 then maxfield = 1 ojmF:hR"  
n = nsur() mGZJ$|  
f = 1 V_'!#  
label 1 =w&bS,a"y  
hx = fldx(f)/maxfield =1|^) 4M,x  
hy = fldy(f)/maxfield +qPpPjG;  
raytrace hx,hy,0,0 qS8p)pw  
format 10.4 \,n|V3#G  
print ~wejy3|@0  
print "  X Field    = ", fldx(f), o*]Tqx  
print "  Y Field    = ", fldy(f) 4n9".UH
h  
print "  X Chief    = ",rayx(n), .Iu8bN(L
`  
print "  Y Chief    = ",rayy(n) g?7I7W~?`  
xraymax = -9e9 _cRCG1
CJ  
yraymax = -9e9 j\I{
pW-  
xraymin =  9e9 YLXLaC[  
yraymin =  9e9 >Bw<THx  
xraytot = 0 ol[sX=5 *  
yraytot = 0 z`
}<mY E  
numray = 0 h+\+9^l6|  
numrayattempt = 0 :D|5E
>o(  
px = -1 - delta Ru&>8Ln0  
label 2 )a7nr<)aU  
px = px + delta "=0(a)01p:  
py = -1 - delta AfAlDM'  
label 3 )7aUDsu>4  
py = py + delta \X*Es.;|x  
rad = px*px + py*py thU9s%,  
if rad <= 0.9999999 6
D\$K  
        raytrace hx, hy, px, py dCb7sqJ%  
        numrayattempt = numrayattempt+1 4ZUTF3  
        if !rayv(n)                                              **************************** B0M(&)!%  
                numray = numray + 1 X_3*DqY  
                x = rayx(n) 0I v(ioB=  
                y = rayy(n) .S_7R/2(?  
                if (x < xraymin) then xraymin = x +!~"ooQZh  
                if (x > xraymax) then xraymax = x Tqf:G4!  
                if (y < yraymin) then yraymin = y wB(X(nr  
                if (y > yraymax) then yraymax = y < NRnE8:  
                xraytot = xraytot + x `iQ])C^d  
                yraytot = yraytot + y w *pTK +  
        endif ;_K3/:  
endif hl/) 1sOIR  
if py < 1.0 then goto 3 sk%Xf,  
if px < 1.0 then goto 2 ufF>I  
if numray +QW|8b  
        format 14.8 R/WbcQ)  
        print "  X Centroid = ",xraytot/numray, ke)}JU^"  
        print "  Y Centroid = ",yraytot/numray m ?e::W  
        print "  X Middle   = ",(xraymax+xraymin)/2, : MEB] }  
        print "  Y Middle   = ",(yraymax+yraymin)/2 7WMF8(j5  
        format .0 e0$.|+  
        print "  ",numray, " out of ", numrayattempt," rays made it through." Dq~\U&U\$  
else sd5)We  
        print "  No rays made it through!" W]W[oTJ5  
endif +:_;K_h  
f=f+1 FKH_o  
if f<= nfld() then goto 1 RxYC]R^78  
print 2CF5qn}T  
print "All field positions done!" Wt M1nnJp  
FORMAT 0.1 KaIkO8Dq0  
print "Elapsed time ", ETIM(), " seconds." dFl8'D  

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 vNQ|tmn  
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 XEUS)X)  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  .Ms$)1  

em2Tet  
Kimclps兄果然学识过人，受教了·····

不敢當，互相切磋。

受教了 fO837