<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <HTML> <HEAD> <META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.65"> <TITLE>BRLTTY Reference Manual: Standard Braille Dot Numbering Convention</TITLE> <LINK HREF="BRLTTY-14.html" REL=next> <LINK HREF="BRLTTY-12.html" REL=previous> <LINK HREF="BRLTTY.html#toc13" REL=contents> </HEAD> <BODY> <A HREF="BRLTTY-14.html">Next</A> <A HREF="BRLTTY-12.html">Previous</A> <A HREF="BRLTTY.html#toc13">Contents</A> <HR> <H2><A NAME="dots"></A> <A NAME="s13">13.</A> <A HREF="BRLTTY.html#toc13">Standard Braille Dot Numbering Convention</A></H2> <P>A standard braille cell consists of six dots arranged in three rows and two columns. Each dot can be specifically identified by its number as follows: <DL> <DT><B>1</B><DD> <P>Top-left (row 1, column 1).</P> <DT><B>2</B><DD> <P>Middle-left (row 2, column 1).</P> <DT><B>3</B><DD> <P>Bottom-left (row 3, column 1).</P> <DT><B>4</B><DD> <P>Top-right (row 1, column 2).</P> <DT><B>5</B><DD> <P>Middle-right (row 2, column 2).</P> <DT><B>6</B><DD> <P>Bottom-right (row 3, column 2).</P> </DL> </P> <P>Computer braille has introduced a fourth row at the bottom. <DL> <DT><B>7</B><DD> <P>Below-left (row 4, column 1).</P> <DT><B>8</B><DD> <P>Below-right (row 4, column 2).</P> </DL> </P> <P>Perhaps a picture will make this numbering convention easier to understand. <BLOCKQUOTE><CODE> <PRE> 1 o o 4 2 o o 5 3 o o 6 7 o o 8 </PRE> </CODE></BLOCKQUOTE> </P> <HR> <A HREF="BRLTTY-14.html">Next</A> <A HREF="BRLTTY-12.html">Previous</A> <A HREF="BRLTTY.html#toc13">Contents</A> </BODY> </HTML>
