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From: R. Timothy Edwards (tim AT stravinsky DOT jhuapl.edu)
Date: Tue Nov 27 2001 - 12:58:35 EST

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    Dear Shengwei,
   Magic believes that a stream file, calma, and GDSII are all the same
thing.  Magic can read either CIF or GDSII (a.k.a. calma).  Magic
version 7.1 gets rid of the silly restriction from version 6.5 and
earlier that all GDSII files must end in the extension ".strm" and all
CIF files must end in the extension ".cif".
   Use ":calma read <filename>" to read GDSII files, and
":cif read <filename>" to read CIF files.  Note that magic's treatment
of GDSII input is to (more or less) convert GDSII records to CIF on the
fly as it reads the file, so most of the CIF commands (like "cif istyle"
and "cif ostyle") also apply to GDSII files.
   More information is in the "Magic Maintainer's Manual #2:  The
Technology File" found in $CAD_HOME/lib/magic/doc/maint2.ps (or, if
your version of magic is not recent enough to save the manuals in
$CAD_HOME/lib, then look in the magic source at doc/psfiles/maint2.ps).
   Please let me know if you have any further questions.

						Regards,
						Tim

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