请教斑竹codev中 monte calro的具体用法。
<P>请教版主！</P>
<P> 在设计完镜头后，总归要评价此镜头的误差感度，大家平常都用逆感度来评价，ZEMAX和CODEV都可以很方便的计算，但这有个缺点，不能很好的模拟现实生产中的良品率，估算成本等。现在很多国外的公司都要求能够在生产之前准确的估算良品率和评价一个镜头好坏。这就要用到 montecalro法了，这个模拟方法很好，可惜需要比很多相应的宏。斑竹如果有精力在这方面做点研究，为中国的光学出点力。</P>
<P> 由于本人对宏不太了解，所以现在设计起来经常是力不从心。希望以后多指教！</P>
<P>! Macro TOLMTF
!
! Other global variables which may be filled in to override
! defaults are:</P><P>! ^format The format of the output. The total width of
! the field should be 12 characters.The default
! is "8d.3d".</P><P>! ^description A description of the image quality value for
! labeling purposes.The default is a blank.</P><P>! ^degradation A value of +1 or -1 depending on whether
! an increase or decrease of the image quality
! value degrades the image.For example, for
! RMS wavefront error it is +1 while for
! MTF it is -1. The default is +1.</P><P>! ^error An error code.It is initialized to 0 in
! TOLFDIF.If the image quality value cannot
! be calculated, this macro should set it to 1.</P><P>! ^z_limit The limit on the zoom loop.It is initialized
! to (NUM Z) in TOLFDIF.</P><P>! ^f_limit The limit on the field loop.It is initialized
! to (NUM F) in TOLFDIF.</P><P>! ^z_label The label for the zoom loop.It is initialized
! to "Zoom" in TOLFDIF.It can be up to 10 characters.</P><P>! ^f_label The label for the field loop.It is initialized
! to "Field" in TOLFDIF.It can be up to 10 characters.</P><P>! ^z_name(50) The names of the zoom values.It is initialized
! to 1, 2, 3, etc., in TOLFDIF.Each can be up to 10 characters.</P><P>! ^f_name(50) The names of the field values.It is initialized
! to 1, 2, 3, etc., in TOLFDIF.Each can be up to 10 characters.
</P><P>rfd"TAN" 20</P><P>
lcl num ^z ^f
lcl str ^t
!lcl num mtfs(200)
!lcl num mtft(200)</P><P>
! Define format, description and degradation for use by TOLFDIF
^format == "5d.6d"
^description == concat(substr(rfstr(1),1,3),"MTF at ")
^description == concat(^description,num_to_str(#2))
^description == concat(^description,"cyc/mm")
^degradation == -1</P><P>
^t==rfstr(1)
^t==substr(upcase(^t),1,1)</P><P>vux f1 (vux f1)+.001</P><P>
BUF DEL B0 ! clear B0 buffer
BUF YES ! turn on output buffer to collect output
mtf
mfr #2
ifr #2/2
plo fre n
go
BUF NO ! turn off output buffer</P><P> ! Loop through field, using BUF FND to locate data of interest
! "DIFFRACTION LIMIT" is reference point for start of MTF data
! sagittal is 6 lines below, 4 columns over
! tangent. is 6 lines below, 5 columns over</P><P> BUF MOV B0 I1 J1
BUF FND B0 "DIFFRACTION LIMIT" ! find first occurrence
for ^z 1 (num z)
for ^F 1 (num f)
!^diffs(^i) == (buf.num ic+6 jc+2)! ic updated by each BUF FND
!^difft(^i) == (buf.num ic+6 jc+3)
!^mtfs(^j,^i) == (buf.num ic+6 jc+4)
IF ^t = 'T'
^imagqual(^z,^f) == (buf.numic+6 jc+5)
ELSE
^imagqual(^z,^f) == (buf.numic+6 jc+4)
END IF
!^mtft(^j,^i) == (buf.num ic+6 jc+5)
BUF FND ! find next occurrence
end for
end for</P><P>buf del b0</P><P>以上是一个用于MONTE CALRO 的宏的示例.</P><P>其实很简单,但是将你想要进行的公差分析内容入进一个全局变量中,供TOLMONTE ＣＡＬＲＯ调用就可以了．</P> <P><img src="data/attachment/forum/dvbbs/2005-3/2005318144945598.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2005-3/2005318144945598.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
例子．当然如果你想完全掌握，最好还是要学会用宏．它并不是太难．</P>
monte calro分析，速度很慢，但较准确．
<P>谢谢版主的解答！</P>
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