[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············· Vl{CD>$,  
U u(ysN4`  
macro 正文：········· |A8Ar7)  
! centroid.zpl (sW:^0p  
! 4;M  
! Written by Kenneth Moore 9/1/92 mn{8"@Z  
! Added TIMER function 4/18/96 nZfTK>)A0  
! U#ueG  
TIMER p>Ju)o  
! j1N1c~2  
! The delta controls how many rays will be traced. A Z@nM\/v
LA  
! delta of .025 will trace a 80 x 80 grid in the pupil. Dj
;h!8t.  
! D7X-|`kH  
delta = .025 U`,&Q]  
! KunK.m  
print "This program computes the chief ray coordinates," *;7&  
print "centroid coordinates, and middle coordinates for" ]cc4+}L~  
print "the primary wave spot at each field position." uTpKT7t  
maxfield = maxf() ?Mp~^sgp'  
if maxfield == 0 then maxfield = 1 VBF3N5 ;W  
n = nsur() n]}+ :  
f = 1 b+'G^!JR  
label 1 P|v;
'9  
hx = fldx(f)/maxfield iH9g5G`O  
hy = fldy(f)/maxfield U)zd~ug?m  
raytrace hx,hy,0,0 r6Lb0PzMf  
format 10.4 q+x4Od3  
print P0Ds7xh]h  
print "  X Field    = ", fldx(f), WVftLIJ  
print "  Y Field    = ", fldy(f) Fla[YWS  
print "  X Chief    = ",rayx(n), m`g%\o^6i  
print "  Y Chief    = ",rayy(n) "monuErg&  
xraymax = -9e9 +%>s\W+?]  
yraymax = -9e9 si/F\NDT
 
xraymin =  9e9 j$Vv'on  
yraymin =  9e9 eE>3=1d]w  
xraytot = 0 f/Grem  
yraytot = 0 =9\=5_V  
numray = 0 S&6}9r  
numrayattempt = 0 $e+@9LNK  
px = -1 - delta %aaOws  
label 2 W2wDSP-   
px = px + delta Eg3rbqM- 8  
py = -1 - delta 76c4~IG#  
label 3 tRS^|??  
py = py + delta doFp53NhV  
rad = px*px + py*py Qf414 oW  
if rad <= 0.9999999 %{yr#F=t#]  
        raytrace hx, hy, px, py
N$/{f2iC  
        numrayattempt = numrayattempt+1 en=Z[ZIPO  
        if !rayv(n)                                              **************************** vROl}s;  
                numray = numray + 1 kNI m90,g  
                x = rayx(n) *<x]gV  
                y = rayy(n) 2 L%d,Ta>  
                if (x < xraymin) then xraymin = x `-\4Dx1!q  
                if (x > xraymax) then xraymax = x hEl)BRJ  
                if (y < yraymin) then yraymin = y 3SpDV'}  
                if (y > yraymax) then yraymax = y 9u1_L`+b  
                xraytot = xraytot + x |^S[Gr w  
                yraytot = yraytot + y tW|B\p}  
        endif st{:]yTRk  
endif ve1jLjsB  
if py < 1.0 then goto 3 N ]}Re$5  
if px < 1.0 then goto 2 BNyDEFd  
if numray 1|;WaO1Q  
        format 14.8 s$C;31k  
        print "  X Centroid = ",xraytot/numray, CUnZ}@?d  
        print "  Y Centroid = ",yraytot/numray 8hQ"rrj+  
        print "  X Middle   = ",(xraymax+xraymin)/2, g"2@E  
        print "  Y Middle   = ",(yraymax+yraymin)/2 @IB8(TZ5I  
        format .0 '$ s:cS`=  
        print "  ",numray, " out of ", numrayattempt," rays made it through." KAgiY4  
else ? Q.Y  
        print "  No rays made it through!" vO]gj/SaT  
endif Wfu%,=@,  
f=f+1 nkS6A}i3o  
if f<= nfld() then goto 1 n j; KnZ  
print ?b#/*T}ac  
print "All field positions done!" ,G"?fQ7zR  
FORMAT 0.1 JGn@)!$+/  
print "Elapsed time ", ETIM(), " seconds." YCh!D dy  

受教了 { zlq6z  

不敢當，互相切磋。

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 ~x4Y57  
的影響，因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  'JkK0a2D  

v'_tna6`O  
Kimclps兄果然学识过人，受教了·····

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 x6$P(eN  
的影響，因此須知道漸暈才能算出chief ray位置。