<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Dear getDP developers:</DIV>
<DIV> </DIV>
<DIV>I am having some strange isse with post-processing (hopefuly it is only the post-processing issue).</DIV>
<DIV> </DIV>
<DIV>Attached are the files I use to compute magnetic field generated by 4 permant magnets. In the postOperation, I have 3 Print operation like the following:</DIV>
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<P>PostOperation {</P>
<P>{ Name a ; NameOfPostProcessing MagSta_a;</P>
<P>Operation {</P>
<P> Print[ b, OnElementsOf Omega, File "b_d1.pos" ] ;</P>
<P> Print[ h, OnElementsOf Omega, File "h_d1.pos" ] ;</P>
<P> Print[ h, OnPlane { {0.001, -0.009,0} { 0.01,-0.009,0} {0.001, 0.022,0}} {30,86}, File "MF_4magnets.pos" ];</P>
<P>}</P>
<P> </P>
<P>The first Print operation gave me errors and the second/third Print operations were successful.</P>
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<P>If I comment out the first Print operation, then, the second Print will give me the same error and will do the third successfully.</P>
<P>If I comment out the first and the second Print operations, then, the third Print will give me the same error and will not plot anything.</P>
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<P>Another strange thing is that, if I only have 2 permanent magnets and modify the *.pro files for the 2-magnet calculation, then, I will not have issue with the Print operation.</P>
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<P>Any suggestion?</P>
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<P>Is this only post-processing issue?</P>
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<P>Pei</P></SPAN></DIV><!-- cg25.c1.mail.mud.yahoo.com compressed/chunked Fri Dec 25 14:22:47 PST 2009 --></div><br>
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