2358 lines
56 KiB
HTML
2358 lines
56 KiB
HTML
<HTML>
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<HEAD>
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<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
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<META NAME="GENERATOR" CONTENT="Mozilla/4.04 [en] (WinNT; I) [Netscape]">
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<TITLE> CHAPTER 1 GDSII format </TITLE>
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</HEAD>
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<BODY TEXT="#000000" BGCOLOR="#66FFFF" LINK="#0000EE" VLINK="#551A8B" ALINK="#FF0000">
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<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
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<TR>
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<TD><B><FONT COLOR="#FFFF00"><FONT SIZE=+3>GDSII format</FONT></FONT></B></TD>
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</TR>
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</TABLE>
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<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
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<TR>
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<TD><B><FONT COLOR="#FFFF00"><FONT SIZE=+1>INDEX</FONT></FONT></B></TD>
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</TR>
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</TABLE>
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<OL>
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<LI>
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<I><A HREF="gdsformat.html#intro">introduction</A></I></LI>
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<LI>
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<I><A HREF="gdsformat.html#bnfforms">bachus nauer forms</A></I></LI>
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<LI>
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<I><A HREF="gdsformat.html#GDSBNF">GDSII BNF</A></I></LI>
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<LI>
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<I><A HREF="gdsformat.html#recordheader">Record header</A></I></LI>
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<LI>
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<I><A HREF="gdsformat.html#datatypes">Data types</A></I></LI>
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<LI>
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<I><A HREF="gdsformat.html#recordover">record types overview</A></I></LI>
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<LI>
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<I><A HREF="gdsformat.html#recordtypes">record types description</A></I></LI>
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<LI>
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<I><A HREF="#example">example file</A></I></LI>
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</OL>
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<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
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<TR>
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<TD><A NAME="example"></A><B><FONT COLOR="#FFFF00"><FONT SIZE=+1>example</FONT></FONT></B></TD>
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</TR>
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</TABLE>
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<A HREF="example.gif"><IMG SRC="example.gif" BORDER=3 HEIGHT=550 WIDTH=717></A>
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<BR>
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<BR>
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<OL>
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<LI>
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<A HREF="example.html#keyfile">text presentation of GDSII file in
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KEYformat</A></LI>
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<LI>
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<A HREF="example.html#hexdump">hex presentation of same file</A></LI>
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<LI>
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<A HREF="example.cal">GDSII file</A></LI>
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</OL>
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<BR>
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<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
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<TR>
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<TD><A NAME="intro"></A><B><FONT COLOR="#FFFF00"><FONT SIZE=+1>introduction</FONT></FONT></B></TD>
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</TR>
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</TABLE>
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GDSII Stream format is the standard file format for transfering/archiving
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2D graphical design data. It contains a hiearchy of structures, each structure
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containing elements (boundary/polygon, path/polyline, text,box, structure
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references, structure array references). The elements are situated on layers.
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It is a binary format that is platform independent, because it uses internally
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defined formats for its data types. While reading GDSII files, the GDSII
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internal data types (like reals, integers etc.) need to be converted to
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the platform/CAE package datatypes that are used.The GDSII format is a
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sequential list of records, each record contains a header to tell what
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information is in the record.The order of the record needs to be according
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to the GDSII BNF, because of this strict organization it is relativly easy
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to parse. The maximum number of vertixes is officially only 200 x,y pairs,
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but many packages can read up to the absolute maximum of 64k/2=32k, simple
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because this is the maximum record lenght that can be specified (two bytes).The
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format is hard to read, since it is binary, for that viewers are available
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to view (boolean) the contents as ASCII. Also an ASCII format has
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been developed (KEY format) which is more than just a text representation.
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It is possible to convert GDSIIformat to KEYformat and back.
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KEYformat has extended the basic primitives to contain cicrles, arcs, polygons/polylines
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with arc segments.
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<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
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<TR>
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<TD><A NAME="bnfforms"></A><B><FONT COLOR="#FFFF00"><FONT SIZE=+1>Bachus
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Nauer Forms</FONT></FONT></B></TD>
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</TR>
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</TABLE>
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The Bachus Nauer Form uses the following symbols:
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<TABLE BORDER=3 BGCOLOR="#FF99FF" >
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<TR BGCOLOR="#CC66CC">
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<TH>Symbol Name</TH>
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<TH>Symbol</TH>
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<TH>Meaning</TH>
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</TR>
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<TR>
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<TD>Double Colon</TD>
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<TD>::</TD>
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<TD>"Is composed of."</TD>
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</TR>
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<TR>
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<TD>Square brackets</TD>
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<TD>[ ]</TD>
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<TD>An element which can occor zero or one time.</TD>
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</TR>
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<TR>
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<TD>Braces</TD>
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<TD>{ }</TD>
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<TD>Choose one of the elements within the braces.</TD>
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</TR>
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<TR>
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<TD>Braces with an asteriks</TD>
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<TD>{ }*</TD>
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<TD>The elements within the braces can occur zero or more times.</TD>
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</TR>
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<TR>
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<TD>Braces with a plus</TD>
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<TD>{ }+</TD>
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<TD>The elements within braces must occur one or more times.</TD>
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</TR>
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<TR>
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<TD>Angle brackets</TD>
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<TD>< ></TD>
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<TD>These elements are further defined as a seperate entitie in the syntax
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list.</TD>
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</TR>
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<TR>
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<TD>Vertical bar</TD>
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<TD>|</TD>
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<TD>Or</TD>
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</TR>
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</TABLE>
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<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
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<TR>
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<TD><A NAME="GDSBNF"></A><FONT COLOR="#FFFF00"><FONT SIZE=+1>GDSII BNF</FONT></FONT></TD>
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</TR>
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</TABLE>
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The following is the Bachus Naur Form of the GDSI format, the words in
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capital are the names of <I><A HREF="gdsformat.html#recordover">RECORDS</A></I>
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<TABLE BORDER=3 CELLSPACING=0 CELLPADDING=0 COLS=3 WIDTH="88%" BGCOLOR="#FF99FF" >
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<TR>
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<TD WIDTH="10%"><stream format></TD>
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<TD WIDTH="2%">::=</TD>
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<TD><A HREF="#rec_header">HEADER</A> <A HREF="#rec_bgnlib">BGNLIB</A> <A HREF="#rec_libname">LIBNAME</A>
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[<A HREF="#rec_reflibs">REFLIBS</A>] [<A HREF="#rec_fonts">FONTS</A>]
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<BR>[<A HREF="#rec_attrtable">ATTRTABLE</A>] [<A HREF="#rec_generations">GENERATIONS</A>]
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[<FormatType>]
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<BR><A HREF="#rec_units">UNITS</A> {<structure>}* <A HREF="#rec_endlib">ENDLIB</A></TD>
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</TR>
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<TR>
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<TD><FormatType></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_format">FORMAT</A> | <A HREF="#rec_format">FORMAT</A>
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{<A HREF="#rec_mask">MASK</A>}+ <A HREF="#rec_endmasks">ENDMASKS</A></TD>
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</TR>
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<TR>
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<TD><structure></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_bgnstr">BGNSTR</A> <A HREF="#rec_strname">STRNAME</A>
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[<A HREF="#rec_strclass">STRCLASS</A>] {<element>}* <A HREF="#rec_endstr">ENDSTR</A></TD>
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</TR>
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<TR>
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<TD><element></TD>
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<TD>::=</TD>
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<TD>{<boundary> | <path> | <sref> | <aref> | <text> | <node>
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| <box>} {<property>}* <A HREF="#rec_endel">ENDEL</A></TD>
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</TR>
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<TR>
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<TD><boundary></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_boundary">BOUNDARY</A> [<A HREF="#rec_elflags">ELFLAGS</A>]
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[<A HREF="#rec_plex">PLEX</A>] <A HREF="#rec_layer">LAYER</A> <A HREF="#rec_datatype">DATATYPE</A>
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<A HREF="#rec_xy">XY</A></TD>
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</TR>
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<TR>
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<TD><path></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_path">PATH</A> [<A HREF="#rec_elflags">ELFLAGS</A>] [<A HREF="#rec_plex">PLEX</A>]
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<A HREF="#rec_layer">LAYER</A> <A HREF="#rec_datatype">DATATYPE</A> [<A HREF="#rec_pathtype">PATHTYPE</A>][<A HREF="#rec_width">WIDTH</A>]
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<A HREF="#rec_xy">XY</A></TD>
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</TR>
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<TR>
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<TD><sref></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_sref">SREF</A> [<A HREF="#rec_elflags">ELFLAGS</A>] [<A HREF="#rec_plex">PLEX</A>]
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<A HREF="#rec_sname">SNAME</A> [<strans>] <A HREF="#rec_xy">XY</A></TD>
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</TR>
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<TR>
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<TD><aref></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_aref">AREF</A> [<A HREF="#rec_elflags">ELFLAGS</A>] [<A HREF="#rec_plex">PLEX</A>]
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<A HREF="#rec_sname">SNAME</A> [<strans>] <A HREF="#rec_colrow">COLROW</A>
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<A HREF="#rec_xy">XY</A></TD>
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</TR>
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<TR>
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<TD><text></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_text">TEXT</A> [<A HREF="#rec_elflags">ELFLAGS</A>] [<A HREF="#rec_plex">PLEX</A>]
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<A HREF="#rec_layer">LAYER</A> <textbody></TD>
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</TR>
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<TR>
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<TD><node></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_node">NODE</A> [<A HREF="#rec_elflags">ELFLAGS</A>].
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[<A HREF="#rec_plex">PLEX</A>] <A HREF="#rec_layer">LAYER </A><A HREF="#rec_nodetype">NODETYPE</A>
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<A HREF="#rec_xy">XY</A></TD>
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</TR>
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<TR>
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<TD><box></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_box">BOX</A> [<A HREF="#rec_elflags">ELFLAGS</A>] [<A HREF="#rec_plex">PLEX</A>]
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<A HREF="#rec_layer">LAYER</A> <A HREF="#rec_boxtype">BOXTYPE</A> <A HREF="#rec_xy">XY</A></TD>
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</TR>
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<TR>
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<TD><textbody></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_texttype">TEXTYPE</A> [<A HREF="#rec_presentation">PRESENTATION</A>]
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[<A HREF="#rec_pathtype">PATHTYPE</A>] [<A HREF="#rec_width">WIDTH</A>]
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[<strans>] <A HREF="#rec_xy">XY</A> <A HREF="#rec_string">STRING</A></TD>
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</TR>
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<TR>
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<TD><strans></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_strans">STRANS</A> [<A HREF="#rec_mag">MAG</A>] [<A HREF="#rec_angle">ANGLE</A>]</TD>
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</TR>
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<TR>
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<TD><property></TD>
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<TD>::=</TD>
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<TD><A HREF="#rec_propattr">PROPATTR</A> <A HREF="#rec_propvalue">PROPVALUE</A></TD>
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</TR>
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</TABLE>
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<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
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<TR>
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<TD><A NAME="recordheader"></A><FONT COLOR="#FFFF00"><FONT SIZE=+1>Record
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header</FONT></FONT></TD>
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</TR>
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</TABLE>
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The Stream format output file is composed of variable length records. Record
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length is measured in bytes. The minimum record length is four bytes. Within
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the record, two bytes (16 bits) is a word. The 16 bits in a word are numbered
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0 to 15, left to right.The first four bytes of a record compose the recordheader.
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The first two bytes of the recordheader contain a count (in eight-bit bytes)
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of the total record length, so the maximum length is 65536 (64k). The next
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record starts immediately after the last byte of the previous record.The
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third byte of the header is the record type. The fourth byte of the header
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identifies the type of data contained within the record. The fifth until
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count bytes of a record contain the data.
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<TABLE BORDER=3 BGCOLOR="#FF99FF" >
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<TR BGCOLOR="#CC66CC">
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<TH><FONT COLOR="#000000">Bitnr</FONT></TH>
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<TD><FONT COLOR="#000000">0</FONT></TD>
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<TD><FONT COLOR="#000000">1</FONT></TD>
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<TD><FONT COLOR="#000000">2</FONT></TD>
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<TH><FONT COLOR="#000000">3</FONT></TH>
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<TH><FONT COLOR="#000000">4</FONT></TH>
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<TH><FONT COLOR="#000000">5</FONT></TH>
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<TH><FONT COLOR="#000000">6</FONT></TH>
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<TH><FONT COLOR="#000000">7</FONT></TH>
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<TH><FONT COLOR="#000000">8</FONT></TH>
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<TH><FONT COLOR="#000000">9</FONT></TH>
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<TH><FONT COLOR="#000000">10</FONT></TH>
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<TH><FONT COLOR="#000000">11</FONT></TH>
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<TH><FONT COLOR="#000000">12</FONT></TH>
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<TH><FONT COLOR="#000000">13</FONT></TH>
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<TH><FONT COLOR="#000000">14</FONT></TH>
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<TH><FONT COLOR="#000000">15</FONT></TH>
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</TR>
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<TR>
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<TD><FONT COLOR="#FF0000">Word1</FONT></TD>
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<TD COLSPAN="16">Total Record length in bytes</TD>
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</TR>
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<TR>
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<TD><FONT COLOR="#FF0000">Word2</FONT></TD>
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<TD COLSPAN="8"><I><A HREF="gdsformat.html#recordover">Record Type</A></I></TD>
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<TD COLSPAN="8"><I><A HREF="gdsformat.html#datatypes">Data type</A></I></TD>
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</TR>
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<TR>
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<TD>Word3</TD>
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<TD COLSPAN="16">Data until Word n (total record length/2)</TD>
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</TR>
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</TABLE>
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<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
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<TR>
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<TD><A NAME="datatypes"></A><FONT COLOR="#FFFF00"><FONT SIZE=+1>Data Types</FONT></FONT></TD>
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</TR>
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</TABLE>
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The fourth byte in the record header contains the data type for the rest
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of the record. The record length is used to find the number of items
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of the specified datatype.
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<TABLE BORDER=3 BGCOLOR="#FF99FF" >
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<TR BGCOLOR="#CC66CC">
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<TH>Data Type</TH>
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<TH>Value</TH>
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</TR>
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<TR>
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<TD>No Data</TD>
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<TD>0</TD>
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</TR>
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<TR>
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<TD>Bit Array</TD>
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<TD>1</TD>
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</TR>
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<TR>
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<TD>Two Byte Signed Integer</TD>
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<TD>2</TD>
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</TR>
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<TR>
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<TD>Four Byte Signed Integer</TD>
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<TD>3</TD>
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</TR>
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<TR>
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<TD>Four Byte Real</TD>
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<TD>4 (not used)</TD>
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</TR>
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<TR>
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<TD>Eight Byte Real</TD>
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<TD>5</TD>
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</TR>
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<TR>
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<TD>ASCII string</TD>
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<TD>6</TD>
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</TR>
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</TABLE>
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<OL>
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<LI CLASS="Numbered1">
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<B><FONT COLOR="#FF0000">Bit Array:</FONT></B></LI>
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<BR>A bit array is a word which uses the value of a particular bit or group
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of bits to represent data. A bit array allows oneword to represent a number
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of simple pieces of information.
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<BR>
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<LI>
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<B><FONT COLOR="#FF0000">Two-Byte Signed Integer:</FONT></B></LI>
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<BR>2-byte integer = 1 word 2s-complement representation. The range of
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two-byte signed integers is -32,768 to 32,767.
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<P>The following is a representation of a two-byte integer, where S is
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the sign and M is the magnitude.
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<P><I><FONT COLOR="#CC66CC"><FONT SIZE=+1>smmmmmmm mmmmmmmm</FONT></FONT></I>
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<P>The following are examples of two-byte integers:
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<P><I><FONT COLOR="#CC66CC">00000000 00000001 = 1</FONT></I>
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<BR><I><FONT COLOR="#CC66CC">00000000 00000010 = 2</FONT></I>
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<BR><I><FONT COLOR="#CC66CC">00000000 10001001 = 137</FONT></I>
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<BR><I><FONT COLOR="#CC66CC">11111111 11111111 = -1</FONT></I>
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<BR><I><FONT COLOR="#CC66CC">11111111 11111110 = -2</FONT></I>
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<BR><I><FONT COLOR="#CC66CC">11111111 01110111 = -137</FONT></I>
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<BR>
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<LI>
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<B><FONT COLOR="#FF0000">Four-Byte Signed Integer:</FONT></B></LI>
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<BR>4-byte integer = 2 word 2s-complement representation
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<P>The range of four-byte signed integers is -2,147,483,648 to 2,147,483,647.
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<P>The following is a representation of a four-byte integer, where S is
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the sign and M is the magnitude.
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<P><I><FONT COLOR="#CC33CC">smmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm</FONT></I>
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<P>The following are examples of four-byte integers:
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<P><I><FONT COLOR="#CC33CC">00000000 00000000 00000000 00000001 = 1</FONT></I>
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<BR><I><FONT COLOR="#CC33CC">00000000 00000000 00000000 00000010 = 2</FONT></I>
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<BR><I><FONT COLOR="#CC33CC">00000000 00000000 00000000 10001001 = 137</FONT></I>
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<BR><I><FONT COLOR="#CC33CC">11111111 11111111 11111111 11111111 = -1</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">11111111 11111111 11111111 11111110 = -2</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">11111111 11111111 11111111 01110111 = -137</FONT></I>
|
|
<BR>
|
|
<LI>
|
|
<B><FONT COLOR="#FF0000">Four-Byte Real</FONT></B></LI>
|
|
|
|
<BR>4-byte real = 2-word floating point representation
|
|
|
|
<P>(See 5.)
|
|
<BR>
|
|
<LI>
|
|
<B><FONT COLOR="#FF0000">Eight-Byte Real</FONT></B></LI>
|
|
|
|
<BR>8-byte real = 4-word floating point representation
|
|
|
|
<P><FONT COLOR="#FF0000">For all non-zero values:</FONT>
|
|
<OL>
|
|
<UL>
|
|
<LI>
|
|
A floating point number has three parts: the sign, the exponent, and the
|
|
mantissa.</LI>
|
|
|
|
<LI>
|
|
The value of a floating point number is defined as:</LI>
|
|
|
|
<LI>
|
|
(Mantissa) x (16 raised to the true value of the exponent field).</LI>
|
|
|
|
<LI>
|
|
The exponent field (bits 1-7) is in Excess-64 representation.</LI>
|
|
|
|
<LI>
|
|
The 7-bit field shows a number that is 64 greater than the actual exponent.</LI>
|
|
|
|
<LI>
|
|
The mantissa is always a positive fraction >=1/16 and <1. For a 4-byte
|
|
real, the mantissa is bits 8-31. For an 8-byte real, the mantissa is bits
|
|
8-63.</LI>
|
|
|
|
<LI>
|
|
The binary point is just to the left of bit 8.</LI>
|
|
|
|
<LI>
|
|
Bit 8 represents the value 1/2, bit 9 represents 1/4, etc.</LI>
|
|
|
|
<LI>
|
|
In order to keep the mantissa in the range of 1/16 to 1, the results of
|
|
floating point arithmetic are normalized. Normalization is a process where
|
|
by the mantissa is shifted left one hex digit at a time until its left
|
|
FOUR bits represent a non-zero quantity. For every hex digit shifted, the
|
|
exponent is decreased by one. Since the mantissa is shifted four bits at
|
|
a time, it is possible for the left three bits of the normalized mantissa
|
|
to be zero. A zero value, also called true zero, is represented by a number
|
|
with all bits zero.</LI>
|
|
</UL>
|
|
</OL>
|
|
The following are representations of 4-byte and 8-byte reals, where S is
|
|
the sign, E is the exponent, and M is the magnitude. Examples of 4-byte
|
|
reals are included in the following pages, but 4-byte reals are not used
|
|
currently. The representation of the negative values of real numbers is
|
|
exactly the same as the positive, except that the highest order bit is
|
|
1, not 0. In the eight-byte real representation, the first four bytes are
|
|
exactly the same as in the four-byte real representation. The last four
|
|
bytes contain additional binary places for more resolution.
|
|
|
|
<P>4-byte real:
|
|
|
|
<P><I><FONT COLOR="#CC33CC">SEEEEEEE MMMMMMMM MMMMMMMM MMMMMMMM</FONT></I>
|
|
|
|
<P>8-byte real:
|
|
|
|
<P><I><FONT COLOR="#CC33CC">SEEEEEEE MMMMMMMM MMMMMMMM MMMMMMMM MMMMMMMM
|
|
MMMMMMMM MMMMMMMM</FONT></I>
|
|
|
|
<P>Examples of 4-byte real:
|
|
|
|
<P>Note: In the first six lines of the following example, the 7-bit exponent
|
|
field = 65. The actual exponent is 65-64=1.
|
|
|
|
<P><I><FONT COLOR="#CC33CC">01000001 00010000 00000000 00000000 = 1</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000001 00100000 00000000 00000000 = 2</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000001 00110000 00000000 00000000 = 3</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">11000001 00010000 00000000 00000000 = -1</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">11000001 00100000 00000000 00000000 = -2</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">11000001 00110000 00000000 00000000 = -3</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000000 10000000 00000000 0000000 = 0 .5</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000000 10011001 10011001 1001100 = 1 .6</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000000 10110011 00110011 0011001 = 1 .7</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000001 00011000 00000000 00000000 = 1.5</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000001 00011001 10011001 10011001 = 1.6</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000001 00011011 00110011 00110011 = 1.7</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">00000000 00000000 00000000 00000000 = 0</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000001 00010000 00000000 00000000 = 1</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000001 10100000 00000000 00000000 = 10</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000010 01100100 00000000 00000000 = 100</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000011 00111110 00000001 00000000 = 1000</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000100 00100111 00010000 00000000 = 10000</FONT></I>
|
|
<BR><I><FONT COLOR="#CC33CC">01000101 00011000 01101010 00000000 = 100000</FONT></I>
|
|
<BR>
|
|
<LI>
|
|
<B><FONT COLOR="#FF0000">ASCII String</FONT></B></LI>
|
|
|
|
<BR>A collection of ASCII characters, where each character is represented
|
|
by one byte. All odd length strings must be padded with a null character
|
|
(the number zero), and the byte count for the record containing the ASCII
|
|
string must include this null character. Stream read-in programs must look
|
|
for the null character and decrease the length of the string by one if
|
|
the null character is present.</OL>
|
|
|
|
<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
|
|
<TR>
|
|
<TD><A NAME="recordover"></A><B><FONT COLOR="#FFFF00"><FONT SIZE=+1>Record
|
|
Types Overview</FONT></FONT></B></TD>
|
|
</TR>
|
|
</TABLE>
|
|
The following table gives an overview of all the record that are used within
|
|
a GDSII file.
|
|
<TABLE BORDER=3 BGCOLOR="#FF99FF" >
|
|
<TR BGCOLOR="#CC66CC">
|
|
<TH>Nr.</TH>
|
|
|
|
<TH>Code</TH>
|
|
|
|
<TH>Mnemonic</TH>
|
|
|
|
<TH>Data Type</TH>
|
|
|
|
<TH>description</TH>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>0</TD>
|
|
|
|
<TD>0002</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_header">HEADER</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>version number</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>1</TD>
|
|
|
|
<TD>0102</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_bgnlib">BGNLIB</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>begin of library, last modification date and time</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>2</TD>
|
|
|
|
<TD>0206</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_libname">LIBNAME</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>name of library</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>3</TD>
|
|
|
|
<TD>0305</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_units">UNITS</A></TD>
|
|
|
|
<TD>Eight-Byte Real</TD>
|
|
|
|
<TD>user and database units</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>4</TD>
|
|
|
|
<TD>0400</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_endlib">ENDLIB</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>end of library</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>5</TD>
|
|
|
|
<TD>0502</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_bgnstr">BGNSTR</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>begin of structure + creation and modification time</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>6</TD>
|
|
|
|
<TD>0606</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_strname">STRNAME</A></TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
|
|
<TD>name of structure</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>7</TD>
|
|
|
|
<TD>0700</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_endstr">ENDSTR</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>end of structure</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>8</TD>
|
|
|
|
<TD>0800</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_boundary">BOUNDARY</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>begin of boundary element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>9</TD>
|
|
|
|
<TD>0900</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_path">PATH</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>begin of path element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>10</TD>
|
|
|
|
<TD>0A00</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_sref">SREF</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>begin of structure reference element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>11</TD>
|
|
|
|
<TD>0B00</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_aref">AREF</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>begin of array reference element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>12</TD>
|
|
|
|
<TD>0C00</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_text">TEXT</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>begin of text element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>13</TD>
|
|
|
|
<TD>0D02</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_layer">LAYER</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>layer number of element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>14</TD>
|
|
|
|
<TD>0E02</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_datatype">DATATYPE</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>Datatype number of element </TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>15</TD>
|
|
|
|
<TD>0F03</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_width">WIDTH</A></TD>
|
|
|
|
<TD>Four-Byte Signed Integer</TD>
|
|
|
|
<TD>width of element in db units</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>16</TD>
|
|
|
|
<TD>1003</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_xy">XY</A></TD>
|
|
|
|
<TD>Four-Byte Signed Integer</TD>
|
|
|
|
<TD>list of xy coordinates in db units</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>17</TD>
|
|
|
|
<TD>1100</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_endel">ENDEL</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>end of element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>18</TD>
|
|
|
|
<TD>1206</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_sname">SNAME</A></TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
|
|
<TD>name of structure reference</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>19</TD>
|
|
|
|
<TD>1302</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_colrow">COLROW</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>number of colomns and rows in array reference</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>21</TD>
|
|
|
|
<TD>1500</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_node">NODE</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>begin of node element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>22</TD>
|
|
|
|
<TD>1602</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_texttype">TEXTTYPE</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>texttype number</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>23</TD>
|
|
|
|
<TD>1701</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_presentation">PRESENTATION</A></TD>
|
|
|
|
<TD>Bit Array</TD>
|
|
|
|
<TD>text presentation, font</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>25</TD>
|
|
|
|
<TD>1906</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_string">STRING</A></TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
|
|
<TD>character string for text element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>26</TD>
|
|
|
|
<TD>1A01</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_strans">STRANS</A></TD>
|
|
|
|
<TD>Bit Array</TD>
|
|
|
|
<TD>array reference, structure reference and text transform flags</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>27</TD>
|
|
|
|
<TD>1B05</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_mag">MAG</A></TD>
|
|
|
|
<TD>Eight Byte Real</TD>
|
|
|
|
<TD>magnification factor for text and references</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>28</TD>
|
|
|
|
<TD>1C05</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_angle">ANGLE</A></TD>
|
|
|
|
<TD>Eight Byte Real</TD>
|
|
|
|
<TD>rotation angle for text and references</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>31</TD>
|
|
|
|
<TD>1F06</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_reflibs">REFLIBS</A></TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
|
|
<TD>name of referenced libraries</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>32</TD>
|
|
|
|
<TD>2006</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_fonts">FONTS</A></TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
|
|
<TD>name of text fonts definition files</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>33</TD>
|
|
|
|
<TD>2102</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_pathtype">PATHTYPE</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>type of PATH element end ( rounded, square)</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>34</TD>
|
|
|
|
<TD>2202</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_generations">GENERATIONS</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>number of deleted structure ?????</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>35</TD>
|
|
|
|
<TD>2306</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_attrtable">ATTRTABLE</A></TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
|
|
<TD>attribute table, used in combination with element properties</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>38</TD>
|
|
|
|
<TD>2601</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_elflags">ELFLAGS</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>template data</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>42</TD>
|
|
|
|
<TD>2A02</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_nodetype">NODETYPE</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>node type number for NODE element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>43</TD>
|
|
|
|
<TD>2B02</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_propattr">PROPATTR</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>attribute number</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>44</TD>
|
|
|
|
<TD>2C06</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_propvalue">PROPVALUE</A></TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
|
|
<TD>attribute name</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>45</TD>
|
|
|
|
<TD>2D00</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_box">BOX</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>begin of box element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>46</TD>
|
|
|
|
<TD>2E02</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_boxtype">BOXTYPE</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>boxtype for box element</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>47</TD>
|
|
|
|
<TD>2F03</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_plex">PLEX</A></TD>
|
|
|
|
<TD>Four-Byte Signed Integer</TD>
|
|
|
|
<TD>plex number</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>50</TD>
|
|
|
|
<TD>3202</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_tapenum">TAPENUM</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>Tape Number</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>51</TD>
|
|
|
|
<TD>3302</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_tapecode">TAPECODE</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>Tape code</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>54</TD>
|
|
|
|
<TD>3602</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_format">FORMAT</A></TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
|
|
<TD>format type</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>55</TD>
|
|
|
|
<TD>3706</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_mask">MASK</A></TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
|
|
<TD>list of layers</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>56</TD>
|
|
|
|
<TD>3800</TD>
|
|
|
|
<TD><A HREF="gdsformat.html#rec_endmasks">ENDMASKS</A></TD>
|
|
|
|
<TD>No Data</TD>
|
|
|
|
<TD>end of MASK</TD>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<TABLE BORDER COLS=1 WIDTH="100%" BGCOLOR="#000000" >
|
|
<TR>
|
|
<TD><A NAME="recordtypes"></A><B><FONT COLOR="#FFFF00"><FONT SIZE=+1>Record
|
|
types description</FONT></FONT></B></TD>
|
|
</TR>
|
|
</TABLE>
|
|
Records are always an even number of bytes long. The first four bytes of
|
|
a record are the <I><A HREF="gdsformat.html#recordheader">record
|
|
header</A></I>. If a record contains ASCII string data and the ASCII string
|
|
is an odd number of bytes long, the data is padded with a null character.
|
|
This paragraph lists the record types with a brief description of each.
|
|
The descriptions include the record name and a four-digit number in brackets.
|
|
The first two numbers within the brackets are the record type, and the
|
|
last two numbers in brackets are the data type. All record numbers are
|
|
expressed in hexadecimal.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">0</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_header"></A>HEADER</TD>
|
|
|
|
<TD WIDTH="40">0002</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes of data representing the Stream version number.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">1</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_bgnlib"></A>BGNLIB</TD>
|
|
|
|
<TD WIDTH="40">0102</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains the last modification time of a library (two bytes each for year,
|
|
month, day, hour, minute, and second), the time of last access (same format),
|
|
and marks the beginning of a library.
|
|
<TABLE BORDER=3 COLS=17 WIDTH="50%" BGCOLOR="#33FF33" >
|
|
<TR BGCOLOR="#CC66CC">
|
|
<TD WIDTH="40">Bit</TD>
|
|
|
|
<TD WIDTH="20">0</TD>
|
|
|
|
<TD WIDTH="20">1</TD>
|
|
|
|
<TD WIDTH="20">2</TD>
|
|
|
|
<TD WIDTH="20">3</TD>
|
|
|
|
<TD WIDTH="20">4</TD>
|
|
|
|
<TD WIDTH="20">5</TD>
|
|
|
|
<TD WIDTH="20">6</TD>
|
|
|
|
<TD WIDTH="20">7</TD>
|
|
|
|
<TD WIDTH="20">8</TD>
|
|
|
|
<TD WIDTH="20">9</TD>
|
|
|
|
<TD WIDTH="20">10</TD>
|
|
|
|
<TD WIDTH="20">11</TD>
|
|
|
|
<TD WIDTH="20">12</TD>
|
|
|
|
<TD WIDTH="20">13</TD>
|
|
|
|
<TD WIDTH="20">14</TD>
|
|
|
|
<TD WIDTH="20">15</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word1</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="501">l C (hex) # of bytes in record</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word2</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="501">01 (hex) 02 (hex)</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word3</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">year (lastmodification time)</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word4</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">month</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word5</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">day</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word6</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">hour</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word7</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">minute</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word8</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">second</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word9</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">year (last access time)</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word10</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">month</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word11</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">day</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word12</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">hour</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word13</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">minute</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word14</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="411">second</TD>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">2</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_libname"></A>LIBNAME</TD>
|
|
|
|
<TD WIDTH="40">0206</TD>
|
|
|
|
<TD>ASCII String</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains a string which is the library name. The library name must follow
|
|
UNIX filename conventions for length and valid characters. The library
|
|
name may include the file extension (.sf or db in most cases).
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">3</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_units"></A>UNITS</TD>
|
|
|
|
<TD WIDTH="40">0305</TD>
|
|
|
|
<TD WIDTH="200">Eight-Byte Real</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two eight-byte real numbers. The first number is the size of a
|
|
database unit in user units. The second number is the size of a database
|
|
unit in meters. For example, if you create a library with the default units
|
|
(user unit = 1 micron and 1000 database units per user unit), the first
|
|
number is .001, and the second number is 1E-9. Typically, the first number
|
|
is less than 1, since you use more than 1 database unit per user unit.
|
|
To calculate the size of a user unit in meters, divide the second number
|
|
by the first.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">4</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_endlib"></A>ENDLIB</TD>
|
|
|
|
<TD WIDTH="40">0400</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Marks the end of a library.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">5</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_bgnstr"></A>BGNSTR</TD>
|
|
|
|
<TD WIDTH="40">0502</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains the creation time and last modification time of a structure (in
|
|
the same format as the BGNLIB record), and marks the beginning of a structure.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">6</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_strname"></A>STRNAME</TD>
|
|
|
|
<TD WIDTH="40">0606</TD>
|
|
|
|
<TD>ASCII String</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains a string which is the structure name. A structurename may be up
|
|
to 32 characters long. Legal structurename characters are:
|
|
<UL>
|
|
<LI>
|
|
A through Z</LI>
|
|
|
|
<LI>
|
|
a through z</LI>
|
|
|
|
<LI>
|
|
0 through 9</LI>
|
|
|
|
<LI>
|
|
Underscore (_)</LI>
|
|
|
|
<LI>
|
|
Question mark (?)</LI>
|
|
|
|
<LI>
|
|
Dollar sign ($)</LI>
|
|
</UL>
|
|
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">7</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_endstr"></A>ENDSTR</TD>
|
|
|
|
<TD WIDTH="40">0700</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Marks the end of a structure.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">8</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_boundary"></A>BOUNDARY</TD>
|
|
|
|
<TD WIDTH="40">0800</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Marks the beginning of a boundary element.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">9</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_path"></A>PATH</TD>
|
|
|
|
<TD WIDTH="40">0900</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Marks the beginning of a path element.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">10</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_sref"></A>SREF</TD>
|
|
|
|
<TD WIDTH="40">0A00</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Marks the beginning of an Sref (structure reference) element.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">11</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_aref"></A>AREF</TD>
|
|
|
|
<TD WIDTH="40">0B00</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Marks the beginning of an Aref (array reference) element.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">12</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_text"></A>TEXT</TD>
|
|
|
|
<TD WIDTH="20">0C00</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Marks the beginning of a text element.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">13</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_layer"></A>LAYER</TD>
|
|
|
|
<TD WIDTH="40">0D02</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes which specify the layer. The value of the layer must
|
|
be in the range of 0 to 255.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">14</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_datatype"></A>DATATYPE</TD>
|
|
|
|
<TD WIDTH="40">OEO2</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes which specify the datatype. The value of the datatype
|
|
must be in the range of 0 to 255.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">15</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_width"></A>WIDTH</TD>
|
|
|
|
<TD WIDTH="40">0F03</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains four bytes which specify the width of a path or text lines in
|
|
database units. A negative value for width means that the width is absolute,
|
|
that is, the width is not affected by the magnification factor of any parent
|
|
reference. If omitted, zero is assumed.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">16</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_xy"></A>XY</TD>
|
|
|
|
<TD WIDTH="40">1003</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<UL>
|
|
<LI>
|
|
Contains an array of XY coordinates in database units. Each X or Y coordinate
|
|
is four bytes long. Path elements may have a minimum of 2 and a maximum
|
|
of 200 coordinates. Boundary and border elements may have a minimum of
|
|
4 and a maximum of 200 coordinates. The first and last coordinates of a
|
|
boundary or border must coincide.</LI>
|
|
|
|
<LI>
|
|
A text, or Sref element may have only one coordinate.</LI>
|
|
|
|
<LI>
|
|
An Aref has exactly three coordinates. In an Aref, the first coordinate
|
|
is the array reference point (origin point). The other two coordinates
|
|
are already rotated, reflected as specified in the STRANS record (if specified).
|
|
So in order to calculate the intercolomn and interrow spacing, the coordinates
|
|
must be mapped back to their original position, or the vector lenght (x1,y1->
|
|
x3,y3) must be divided by the number of row etc. . The second coordinate
|
|
locates a position which is displaced from the reference point by the inter-column
|
|
spacing times the number of columns. The third coordinate locates a position
|
|
which is displaced from the reference point by the inter-row spacing times
|
|
the number of rows. For an example of an array lattice see the next picture.</LI>
|
|
|
|
<BR><IMG SRC="arrayref.gif" BORDER=3 HEIGHT=418 WIDTH=455>Aref rotated
|
|
-30 degrees.
|
|
<LI>
|
|
A node may have from one to 50 coordinates.</LI>
|
|
|
|
<LI>
|
|
A box must have five coordinates, with the first and last coordinates being
|
|
the same.</LI>
|
|
</UL>
|
|
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">17</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_endel"></A>ENDEL</TD>
|
|
|
|
<TD WIDTH="40">1100</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Marks the end of an element.
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">18</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_sname"></A>SNAME</TD>
|
|
|
|
<TD WIDTH="40">1206</TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains the name of a referenced structure.See also <A HREF="#rec_sname">STRNAME</A>.
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">19</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_colrow"></A>COLROW</TD>
|
|
|
|
<TD WIDTH="40">1302</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains four bytes. The first two bytes contain the number of columns
|
|
in the array. The third and fourth bytes contain the number of rows. Neither
|
|
the number of columns nor the number of rows may exceed 32,767 (decimal),
|
|
and both are positive. See also <A HREF="#rec_aref">AREF.</A>
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">21</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_node"></A>NODE</TD>
|
|
|
|
<TD WIDTH="40">1500</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Present Marks the beginning of a node
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">22</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_texttype"></A>TEXTTYPE</TD>
|
|
|
|
<TD WIDTH="40">1602</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes representing texttype. The value of the texttype must
|
|
be in the range 0 to 255.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">23</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_presentation"></A>PRESENTATION</TD>
|
|
|
|
<TD WIDTH="40">1701</TD>
|
|
|
|
<TD>Bit Array</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains one word (two bytes) of bit flags for text presentation. Bits
|
|
10 and 11, taken together as a binary number, specify the font (00 means
|
|
font 0, 01 rneans font 1, 10 means font 2, and 11 means font 3). Bits 12
|
|
and 13 specify the vertical justification (00 means top, 01 means middle,
|
|
and 10 means bottom). Bits 14 and 15 specify the horizontal justification
|
|
(00 means left, 01 means center, and 10 means right). Bits 0 through 9
|
|
are reserved for future use and must be cleared. If this record is omitted,
|
|
then top-left justification and font 0 are assumed. The following shows
|
|
a PRESENTATION record.
|
|
<BR>
|
|
<TABLE BORDER=3 COLS=17 WIDTH="50%" BGCOLOR="#33FF33" >
|
|
<TR BGCOLOR="#CC66CC">
|
|
<TD WIDTH="40">Bit</TD>
|
|
|
|
<TD WIDTH="20">0</TD>
|
|
|
|
<TD WIDTH="20">1</TD>
|
|
|
|
<TD WIDTH="20">2</TD>
|
|
|
|
<TD WIDTH="20">3</TD>
|
|
|
|
<TD WIDTH="20">4</TD>
|
|
|
|
<TD WIDTH="20">5</TD>
|
|
|
|
<TD WIDTH="20">6</TD>
|
|
|
|
<TD WIDTH="20">7</TD>
|
|
|
|
<TD WIDTH="20">8</TD>
|
|
|
|
<TD WIDTH="20">9</TD>
|
|
|
|
<TD WIDTH="20">10</TD>
|
|
|
|
<TD WIDTH="20">11</TD>
|
|
|
|
<TD WIDTH="20">12</TD>
|
|
|
|
<TD WIDTH="20">13</TD>
|
|
|
|
<TD WIDTH="20">14</TD>
|
|
|
|
<TD WIDTH="20">15</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word1</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="501">6 (hex) # of bytes in record</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word2</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="8" WIDTH="501">17 (hex) </TD>
|
|
|
|
<TD COLSPAN="8">01 (hex)</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word3</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="10" WIDTH="501">unused </TD>
|
|
|
|
<TD COLSPAN="2">font number</TD>
|
|
|
|
<TD COLSPAN="2">vertical
|
|
<BR>presentaion</TD>
|
|
|
|
<TD COLSPAN="2">horizontal presentation</TD>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">25</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_string"></A>STRING</TD>
|
|
|
|
<TD WIDTH="40">1906</TD>
|
|
|
|
<TD>ASCII String</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains a character string, up to 512 characters long, for text presentation.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">26</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_strans"></A>STRANS</TD>
|
|
|
|
<TD WIDTH="40">1A01</TD>
|
|
|
|
<TD>Bit Array</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes of bit flags for Sref, Aref, and text transforrnation.
|
|
Bit 0 (the leftmost bit) specifies reflection. If bit 0 is set, the element
|
|
is reflected about the X-axis before angular rotation. For an Aref, the
|
|
entire array is reflected, with the individual array members rigidly attached.
|
|
Bit 13 flags absolute magnification. Bit 14 flags absolute angle. Bit 15
|
|
(the rightmost bit) and all remaining bits are reserved for future use
|
|
and must be cleared. If this record is omitted, the element is assumed
|
|
to have no reflection, non-absolute magnification, and non- absolute angle.
|
|
<BR>The following shows a STRANS record.
|
|
<BR>
|
|
<TABLE BORDER=3 COLS=17 WIDTH="50%" BGCOLOR="#33FF33" >
|
|
<TR BGCOLOR="#CC66CC">
|
|
<TD WIDTH="40">Bit</TD>
|
|
|
|
<TD WIDTH="20">0</TD>
|
|
|
|
<TD WIDTH="20">1</TD>
|
|
|
|
<TD WIDTH="20">2</TD>
|
|
|
|
<TD WIDTH="20">3</TD>
|
|
|
|
<TD WIDTH="20">4</TD>
|
|
|
|
<TD WIDTH="20">5</TD>
|
|
|
|
<TD WIDTH="20">6</TD>
|
|
|
|
<TD WIDTH="20">7</TD>
|
|
|
|
<TD WIDTH="20">8</TD>
|
|
|
|
<TD WIDTH="20">9</TD>
|
|
|
|
<TD WIDTH="20">10</TD>
|
|
|
|
<TD WIDTH="20">11</TD>
|
|
|
|
<TD WIDTH="20">12</TD>
|
|
|
|
<TD WIDTH="20">13</TD>
|
|
|
|
<TD WIDTH="20">14</TD>
|
|
|
|
<TD WIDTH="20">15</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word1</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="501">6 (hex) # of bytes in record</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word2</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="8" WIDTH="501">1A (hex) </TD>
|
|
|
|
<TD COLSPAN="8">01 (hex)</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word3</TD>
|
|
|
|
<TD ALIGN=CENTER WIDTH="501">reflection </TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="12">unused</TD>
|
|
|
|
<TD>absolute
|
|
<BR>magnification</TD>
|
|
|
|
<TD>absolute angle</TD>
|
|
|
|
<TD>unused</TD>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">27</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_mag"></A>MAG</TD>
|
|
|
|
<TD WIDTH="40">1B05</TD>
|
|
|
|
<TD>Eight Byte Real</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Eight-Byte Real Contains a double-precision real number (8 bytes), which
|
|
is the magnification factor. If this record is omitted, a magnification
|
|
factor of one is assumed.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">28</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_angle"></A>ANGLE</TD>
|
|
|
|
<TD WIDTH="40">1C05</TD>
|
|
|
|
<TD>Eight Byte Real</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Eight-Byte Real Contains a double-precision real number (8 bytes), which
|
|
is the angular rotation factor. The angle of rotation is measured in degrees
|
|
and in the counterclockwise direction. For an <A HREF="#rec_aref">Aref</A>,
|
|
the ANGLE rotates the entire array (with the individual array members rigidly
|
|
attached) about the array reference point. For <A HREF="#rec_colrow">COLROW</A>
|
|
record information, the angle of rotation is already inlcuded in the coordinates.
|
|
If this record is omitted, an angle of zero degrees is assumed.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">31</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_reflibs"></A>REFLIBS</TD>
|
|
|
|
<TD WIDTH="40">1F06</TD>
|
|
|
|
<TD>ASCII String</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains the names of the reference libraries. This record must be present
|
|
if any reference libraries are bound to the working library. The name of
|
|
the first reference library starts at byte 5 (immediately following the
|
|
record header) and continues for 44 bytes. The next 44 bytes contain the
|
|
name of the second library. The record is extended by 44 bytes for each
|
|
additional library (up to 15) which is bound for reference. The reference
|
|
library names may include directory specifiers (separated with "/") and
|
|
an extension (separated with "."). If either the first or second library
|
|
is not named, its place is filled with nulls.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">32</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_fonts"></A>FONTS</TD>
|
|
|
|
<TD WIDTH="40">2006</TD>
|
|
|
|
<TD>ASCII String</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains the names of the textfont definition files. This record must be
|
|
present if any of the four fonts have acorresponding textfont definition
|
|
file. This record must not be present if none of the fonts have a textfont
|
|
definition file. The textfont filename of font 0 starts the record, followed
|
|
by the textfont files of the remaining three fonts.Each filename is 44
|
|
bytes long. The filename is padded withnulls if the name is shorter than
|
|
44 bytes. The filename is null if no textfont definition corresponds to
|
|
the font. The textfont filenames may include directory specifiers (separated
|
|
with "/" and an extension (separated with ".").
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">33</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_pathtype"></A>PATHTYPE</TD>
|
|
|
|
<TD WIDTH="40">2102</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
This record contains a value that describes the type of path endpoints.
|
|
The value is
|
|
<UL>
|
|
<LI>
|
|
0 for square-ended paths that endflush with their endpoints</LI>
|
|
|
|
<LI>
|
|
1 for round-ended paths</LI>
|
|
|
|
<LI>
|
|
2 for square-ended paths that extend a half-width beyond their endpoints</LI>
|
|
</UL>
|
|
If not specified, a Path-type of 0 is assumed.
|
|
|
|
<P>The following picture shows the pathtypes
|
|
<BR>
|
|
<TABLE BORDER COLS=2 BGCOLOR="#FF99FF" >
|
|
<TR>
|
|
<TD ROWSPAN="3" WIDTH="190"><IMG SRC="pathtype.gif" BORDER=0 HEIGHT=567 WIDTH=190></TD>
|
|
|
|
<TD WIDTH="200">Pathtype 0 produces a square-ended path, ending flush with
|
|
thedigitized endpoints. This is the de-fault pathtype if none is specified</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="50%">Pathtype 1 produces a round-ended path. The two ends aresemicircular
|
|
with center at thedigitized endpoints.</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD>Pathtype 2 produces a square-ended path. The ends of the pathextend
|
|
beyond the digitized end-points by one-half the path width.</TD>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">34</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_generations"></A>GENERATIONS</TD>
|
|
|
|
<TD WIDTH="40">2202</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
This record contains a value to indicate the number of copies of deleted
|
|
or back-up structures to retain. This numbermust be at least 2 and not
|
|
more than 99. If the GENERATION record is omitted, a value of 3 is assumed.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">35</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_attrtable"></A>ATTRTABLE</TD>
|
|
|
|
<TD WIDTH="40">2306</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains the name of the attribute definition file. This record is present
|
|
only if an attribute definition file is bound to the library. The attribute
|
|
defenition filename may include directory specifiers (separated with "/")
|
|
and an extension (separated with "."). Maximum record size is 44 bytes.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">36</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_styptable"></A>STYPTABLE</TD>
|
|
|
|
<TD WIDTH="40">2502</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Unrelesed Feature
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">37</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_strtype"></A>STRTYPE</TD>
|
|
|
|
<TD WIDTH="40">2502</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Unrelesed Feature
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">38</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_elflags"></A>ELFLAGS</TD>
|
|
|
|
<TD WIDTH="40">2601</TD>
|
|
|
|
<TD>Bit Array</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes of bit flags. Bit 15 (the rightmost bit)specifies Template
|
|
data. Bit 14 specifies External data(also referred to as Exterior data).
|
|
All other bits are currently unused and must be cleared to 0. If this record
|
|
isomitted, all bits are assumed to be 0. The following shows an ELFLAGS
|
|
record.
|
|
|
|
<P>For additional information on Template data, consult the GDSII Reference
|
|
Manual. For additional information on External data, consult the CustomPlus
|
|
User's Manual.
|
|
<BR>
|
|
<TABLE BORDER=3 COLS=17 WIDTH="50%" BGCOLOR="#33FF33" >
|
|
<TR BGCOLOR="#CC66CC">
|
|
<TD WIDTH="40">Bit</TD>
|
|
|
|
<TD WIDTH="20">0</TD>
|
|
|
|
<TD WIDTH="20">1</TD>
|
|
|
|
<TD WIDTH="20">2</TD>
|
|
|
|
<TD WIDTH="20">3</TD>
|
|
|
|
<TD WIDTH="20">4</TD>
|
|
|
|
<TD WIDTH="20">5</TD>
|
|
|
|
<TD WIDTH="20">6</TD>
|
|
|
|
<TD WIDTH="20">7</TD>
|
|
|
|
<TD WIDTH="20">8</TD>
|
|
|
|
<TD WIDTH="20">9</TD>
|
|
|
|
<TD WIDTH="20">10</TD>
|
|
|
|
<TD WIDTH="20">11</TD>
|
|
|
|
<TD WIDTH="20">12</TD>
|
|
|
|
<TD WIDTH="20">13</TD>
|
|
|
|
<TD WIDTH="20">14</TD>
|
|
|
|
<TD WIDTH="20">15</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word1</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="16" WIDTH="501">6 (hex) # of bytes in record</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word2</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="8" WIDTH="501">26 (hex) </TD>
|
|
|
|
<TD COLSPAN="8">01 (hex)</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD WIDTH="101">word3</TD>
|
|
|
|
<TD ALIGN=CENTER COLSPAN="14">unused</TD>
|
|
|
|
<TD>external data</TD>
|
|
|
|
<TD>template
|
|
<BR>data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">39</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_elkey"></A>ELKEY</TD>
|
|
|
|
<TD WIDTH="40">2703</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
(Unreleased feature)
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">40</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_linktype"></A>LINKTYPE</TD>
|
|
|
|
<TD WIDTH="40">28</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
(Unreleased feature)
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">41</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_linkkeys"></A>LINKKEYS</TD>
|
|
|
|
<TD WIDTH="40">29</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
(Unreleased feature)
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">42</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_nodetype"></A>NODETYPE</TD>
|
|
|
|
<TD WIDTH="40">2A02</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes which specify nodetype. The value ofthe nodetype must
|
|
be in the range of 0 to 255.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">43</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_propattr"></A>PROPATTR</TD>
|
|
|
|
<TD WIDTH="40">2B02</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes which specify the attribute number. The attribute number
|
|
is an integer from 1 to 127. Attribute numbers 126 and 127 are reserved
|
|
for the user integer and userstring (CSD) properties which existed prior
|
|
to Release 3.0.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">44</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_propvalue"></A>PROPVALUE</TD>
|
|
|
|
<TD WIDTH="40">2C06</TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains the string value associated with the attribute named in the preceding
|
|
PROPATTR record. Maximumlength is 126 characters. The attribute-value pairs
|
|
associated with any one element must all have distinct attribute numbers.
|
|
Also, the total amount of property data that may be associated with any
|
|
one element is limited: thetotal length of all the strings, plus twice
|
|
the number of attribute-value pairs, must not exceed 128 (or 512 if the
|
|
element is an Sref, Aref, contact, nodeport, or node).
|
|
|
|
<P>For example, if a boundary element uses property attribute2 with property
|
|
value "metal," and property attribute 10 with property value "property,"
|
|
the total amount of property data is 18 bytes. This is 6 bytes for "metal"
|
|
(odd-length strings must be padded with a null) + 8 for "property" + 2
|
|
times the 2 attributes (4) = 18.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">45</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_box"></A>BOX</TD>
|
|
|
|
<TD WIDTH="40">2D00</TD>
|
|
|
|
<TD>No Data</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Marks the beginning of a box element.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">46</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_boxtype"></A>BOXTYPE</TD>
|
|
|
|
<TD WIDTH="40">2E02</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes which specify boxtype. The value of the boxtype must
|
|
be in the range of 0 to 255.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">47</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_plex"></A>PLEX</TD>
|
|
|
|
<TD WIDTH="40">2F03</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
A unique positive number which is common to all elementsof the plex to
|
|
which this element belongs. The head of the plex is flagged by setting
|
|
the seventh bit; therefore, plexnumbers should be small enough to occupy
|
|
only the right-most 24 bits. If this record is not present, the element
|
|
is not a plex member Applies to Pathtype 4.Contains four bytes which specify
|
|
indatabase units the distance a path outline begins before orafter the
|
|
last point of the path. Value can be negative.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">50</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_tapenum"></A>TAPENUM</TD>
|
|
|
|
<TD WIDTH="40">3202</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains two bytes which specify the number of the current reel of tape
|
|
for a multi-reel Stream file. For the first tape, the TAPENUM is 1: for
|
|
the second tape, the TAPENUM is 2. For each additional tape, increment
|
|
the TAPENum by one.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">51</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_tapecode"></A>TAPECODE</TD>
|
|
|
|
<TD WIDTH="40">3302</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Contains 12 bytes. This is a unique 6-integer code which iscommon to all
|
|
the reels of multi-reel Stream file. It verifies that the correct reels
|
|
are being read.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">52</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_strclass"></A>STRCLASS</TD>
|
|
|
|
<TD WIDTH="40">3401</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Not used
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">53</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_reserved"></A>RESERVED</TD>
|
|
|
|
<TD WIDTH="40">3503</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
This record type was used for NUMTYPES but was not required.
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">54</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_format"></A>FORMAT</TD>
|
|
|
|
<TD WIDTH="40">3602</TD>
|
|
|
|
<TD>Two-Byte Signed Integer</TD>
|
|
</TR>
|
|
</TABLE>
|
|
Defines the format of a Stream tape in two bytes. The possible values are:
|
|
<OL>
|
|
<LI>
|
|
for GDSII Archive format</LI>
|
|
|
|
<LI>
|
|
for GDSII Filtered format</LI>
|
|
|
|
<LI>
|
|
for EDSM Archive format</LI>
|
|
|
|
<LI>
|
|
for EDSHI Filtered forrnat</LI>
|
|
</OL>
|
|
An Archive Stream file contains elements for all the layers and data types.
|
|
In an Archive Stream file, the FORMAT record is followed immediately by
|
|
the UNITS record. A file which does not have the FORMAT record is assumed
|
|
to be an Archive file.
|
|
|
|
<P>A Filtered Stream file contains only the elements on the layers and
|
|
with the datatypes you specify during creation ofthe Stream file. The list
|
|
of layers and datatypes specified appear in MASK records. At least one
|
|
MASK record must immediately follow the FORMAT record. The MASK records
|
|
are terminated with the ENDMASKS record.
|
|
<BR>
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">55</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_mask"></A>MASK</TD>
|
|
|
|
<TD WIDTH="40">3706</TD>
|
|
|
|
<TD>ASCII string</TD>
|
|
</TR>
|
|
</TABLE>
|
|
(Required for and present only in FilteredStream file. )
|
|
<BR>Contains the list of layers and datatypes specified by the user when
|
|
creating the file. At least one MASK record must immediately follow the
|
|
FORMAT record. More than one MASK record may occur. The last MASK record
|
|
is followed by the ENDMASK record.
|
|
<BR>In the MASK list, datatypes are separated from the layers with a semicolon.
|
|
Individual layers or datatypes are sepa-rated with a space. A range of
|
|
layers or datatypes is specified with a dash.
|
|
|
|
<P>An example MASK list looks like this: 1 5 -7 10 ; 0- 255
|
|
<TABLE BORDER=3 WIDTH="600" BGCOLOR="#FF9900" >
|
|
<TR>
|
|
<TD WIDTH="20">56</TD>
|
|
|
|
<TD WIDTH="100"><A NAME="rec_endmasks"></A>ENDMASKS</TD>
|
|
|
|
<TD WIDTH="40">3800</TD>
|
|
|
|
<TD>NoData</TD>
|
|
</TR>
|
|
</TABLE>
|
|
(Required for and present only in FilteredStream file.)
|
|
<BR>Marks the end of the MASK records. The ENDMASKS record must follow
|
|
the last MASK record. ENDMASKS is immediately followed by the UNITS record.
|
|
</BODY>
|
|
</HTML>
|