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Add Data Matrix ECC 000-140 and MicroQR

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hooper114 2008-11-05 08:43:13 +00:00
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docs/twodims.html
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@ -5,7 +5,7 @@
<TITLE>Two-Dimensional Symbols</TITLE>
<META NAME="GENERATOR" CONTENT="OpenOffice.org 2.4 (Unix)">
<META NAME="CREATED" CONTENT="20070730;21081900">
<META NAME="CHANGED" CONTENT="20080708;13271600">
<META NAME="CHANGED" CONTENT="20081102;14024700">
<STYLE TYPE="text/css">
<!--
TD P { color: #000000 }
@ -38,10 +38,131 @@
<H1>5.6 Two-Dimensional Symbols</H1>
<P><A NAME="DMATRIX"></A><FONT SIZE=5><B>5.6.1 Data Matrix (ISO
16022)</B></FONT></P>
<P>Also known as Semacode this symbology can encode a large amount of
data in a small area. Any length ASCII string can be encoded up to
780 characters. Symbol size is determined by the length of the input
data and Reed-Solomon error correction is added.</P>
<P>Also known as Semacode this symbology was developed in 1989 by
Acuity CiMatrix in partnership with the US DoD and NASA. The symbol
can encode a large amount of data in a small area. Zint supports all
versions of the standard from ISO 16022 as shown in the following
table. ECC200 uses Reed-Solomon error correction and is recommended
for new applications. The different modes are accessed using the
<FONT FACE="Courier, monospace">mode=</FONT> option or by setting
<FONT FACE="Courier, monospace">option_1</FONT>.</P>
<DL>
<DL>
<DL>
<DL>
<DL>
<DD>
<TABLE WIDTH=708 BORDER=1 CELLPADDING=4 CELLSPACING=3>
<COL WIDTH=143>
<COL WIDTH=142>
<COL WIDTH=214>
<COL WIDTH=160>
<TR VALIGN=TOP>
<TD WIDTH=143 HEIGHT=20>
<P ALIGN=CENTER><B>Input</B></P>
</TD>
<TD WIDTH=142>
<P ALIGN=CENTER><B>Mode</B></P>
</TD>
<TD WIDTH=214>
<P ALIGN=CENTER><B>Error Correction Capacity</B></P>
</TD>
<TD WIDTH=160>
<P ALIGN=CENTER><B>Recovery Capacity</B></P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=143>
<P ALIGN=CENTER>1 (default)</P>
</TD>
<TD WIDTH=142>
<P ALIGN=CENTER>ECC 200</P>
</TD>
<TD WIDTH=214>
<P ALIGN=CENTER>28 - 62%</P>
</TD>
<TD WIDTH=160>
<P ALIGN=CENTER>30 - 40%</P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=143>
<P ALIGN=CENTER>2</P>
</TD>
<TD WIDTH=142>
<P ALIGN=CENTER>ECC 000</P>
</TD>
<TD WIDTH=214>
<P ALIGN=CENTER>0%</P>
</TD>
<TD WIDTH=160>
<P ALIGN=CENTER>0%</P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=143>
<P ALIGN=CENTER>3</P>
</TD>
<TD WIDTH=142>
<P ALIGN=CENTER>ECC 050</P>
</TD>
<TD WIDTH=214>
<P ALIGN=CENTER>25%</P>
</TD>
<TD WIDTH=160>
<P ALIGN=CENTER>2.8%</P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=143>
<P ALIGN=CENTER>4</P>
</TD>
<TD WIDTH=142>
<P ALIGN=CENTER>ECC 080</P>
</TD>
<TD WIDTH=214>
<P ALIGN=CENTER>33%</P>
</TD>
<TD WIDTH=160>
<P ALIGN=CENTER>5.5%</P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=143>
<P ALIGN=CENTER>5</P>
</TD>
<TD WIDTH=142>
<P ALIGN=CENTER>ECC 100</P>
</TD>
<TD WIDTH=214>
<P ALIGN=CENTER>50%</P>
</TD>
<TD WIDTH=160>
<P ALIGN=CENTER>12.6%</P>
</TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=143>
<P ALIGN=CENTER>6</P>
</TD>
<TD WIDTH=142>
<P ALIGN=CENTER>ECC 140</P>
</TD>
<TD WIDTH=214>
<P ALIGN=CENTER>75%</P>
</TD>
<TD WIDTH=160>
<P ALIGN=CENTER>25%</P>
</TD>
</TR>
</TABLE>
</DL>
</DL>
</DL>
</DL>
</DL>
<P><BR><BR>
</P>
<P ALIGN=CENTER><IMG SRC="matrix.png" NAME="graphics1" ALIGN=LEFT WIDTH=44 HEIGHT=44 BORDER=0><BR CLEAR=LEFT><BR><BR>
</P>
<P><A NAME="QRCODE"></A><FONT SIZE=5><B>5.6.2 QR Code (ISO 18004)</B></FONT></P>
@ -153,9 +274,16 @@ option or setting <FONT FACE="Courier, monospace">option_2</FONT> to
the QR Code version required (1-40). The maximum capacity of a
(version 40) QR Code symbol is 7089 numeric digits, 4296 alphanumeric
characters or 2953 bytes of data.</P>
<P ALIGN=CENTER><IMG SRC="qr.png" NAME="graphics2" ALIGN=LEFT WIDTH=50 HEIGHT=50 BORDER=0><BR CLEAR=LEFT><BR><BR>
<P ALIGN=CENTER><IMG SRC="qr.png" NAME="graphics5" ALIGN=LEFT WIDTH=50 HEIGHT=50 BORDER=0><BR CLEAR=LEFT><BR><BR>
</P>
<P><A NAME="MAXI"></A><FONT SIZE=5><B>5.6.3 Maxicode (ISO 16023)</B></FONT></P>
<P><A NAME="MICROQR"></A><FONT SIZE=5><B>5.6.3 Micro QR Code (ISO
18004)</B></FONT></P>
<P ALIGN=LEFT>A miniature version of the QR Code symbol for short
messages. ECC levels can be selected as for QR Code (above). Micro QR
Code support does not require <I>libqrencode</I>.</P>
<P ALIGN=LEFT><IMG SRC="microqr.png" NAME="graphics2" ALIGN=LEFT WIDTH=30 HEIGHT=30 BORDER=0><BR CLEAR=LEFT><BR><BR>
</P>
<P><A NAME="MAXI"></A><FONT SIZE=5><B>5.6.4 Maxicode (ISO 16023)</B></FONT></P>
<P ALIGN=LEFT>Developed by UPS the Maxicode symbology employs a grid
of hexagons surrounding a 'bulls-eye' finder pattern. This symbology
is designed for the identification of parcels. Zint encodes Maxicode
@ -344,7 +472,7 @@ resolution of 12 pixels per millimetre (approx 300 dpi) and uses the
methods set out in Annex J of the ISO/IEC standard.</P>
<P ALIGN=LEFT><IMG SRC="maxicode.png" NAME="graphics3" ALIGN=LEFT WIDTH=200 HEIGHT=200 BORDER=0><BR CLEAR=LEFT><BR><BR>
</P>
<P><A NAME="AZTEC"></A><FONT SIZE=5><B>5.6.4 Aztec Code (ISO 24778)</B></FONT></P>
<P><A NAME="AZTEC"></A><FONT SIZE=5><B>5.6.5 Aztec Code (ISO 24778)</B></FONT></P>
<P ALIGN=LEFT>Invented by Andrew Longacre at Welch Allyn Inc in 1995
the Aztec Code symbol is a matrix symbol with a distinctive bulls-eye
finder pattern. Zint can generate Compact Aztec Code (sometimes