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English: Trellis diagram
Date 21 June 2009(2009-06-21)
Source Own work
Author Qef
Other versions

Original bitmap version: file:Convolutional_code_trellis_diagram.png


Public domain This work has been released into the public domain by its author, Qef. This applies worldwide.
In some countries this may not be legally possible; if so:
Qef grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Source code

This vector image was created with MetaPost. For MetaPost source code please see below.
prologues := 3;
input boxes

spacex=15mm; spacey=3mm;
pickup pencircle scaled 1pt;

boxit.aoo(btex 00 etex scaled 1.5);
boxit.aol(btex 01 etex scaled 1.5);
boxit.alo(btex 10 etex scaled 1.5);
boxit.all(btex 11 etex scaled 1.5);
boxit.boo(btex 00 etex scaled 1.5);
boxit.bol(btex 01 etex scaled 1.5);
boxit.blo(btex 10 etex scaled 1.5);
boxit.bll(btex 11 etex scaled 1.5);
boxit.coo(btex 00 etex scaled 1.5);
boxit.col(btex 01 etex scaled 1.5);
boxit.clo(btex 10 etex scaled 1.5);
boxit.cll(btex 11 etex scaled 1.5);
boxit.doo(btex 00 etex scaled 1.5);
boxit.dol(btex 01 etex scaled 1.5);
boxit.dlo(btex 10 etex scaled 1.5);
boxit.dll(btex 11 etex scaled 1.5);
boxit.eoo(btex 00 etex scaled 1.5);
boxit.eol(btex 01 etex scaled 1.5);
boxit.elo(btex 10 etex scaled 1.5);
boxit.ell(btex 11 etex scaled 1.5);

aoo.s - (0,spacey) = aol.n;
aol.s - (0,spacey) = alo.n;
alo.s - (0,spacey) = all.n;

aoo.e + (spacex,0) = boo.w;
aol.e + (spacex,0) = bol.w;
alo.e + (spacex,0) = blo.w;
all.e + (spacex,0) = bll.w;
boo.e + (spacex,0) = coo.w;
bol.e + (spacex,0) = col.w;
blo.e + (spacex,0) = clo.w;
bll.e + (spacex,0) = cll.w;
coo.e + (spacex,0) = doo.w;
col.e + (spacex,0) = dol.w;
clo.e + (spacex,0) = dlo.w;
cll.e + (spacex,0) = dll.w;
doo.e + (spacex,0) = eoo.w;
dol.e + (spacex,0) = eol.w;
dlo.e + (spacex,0) = elo.w;
dll.e + (spacex,0) = ell.w;

drawboxed(aoo, aol, alo, all);
drawboxed(boo, bol, blo, bll);
drawboxed(coo, col, clo, cll);
drawboxed(doo, dol, dlo, dll);
drawboxed(eoo, eol, elo, ell);

% solid arrows
drawarrow aoo.e--boo.w withcolor red;
drawarrow aol.e--boo.w;
drawarrow alo.e--bol.w;
drawarrow all.e--bol.w;
drawarrow boo.e--coo.w;
drawarrow bol.e--coo.w;
drawarrow blo.e--col.w;
drawarrow bll.e--col.w;
drawarrow coo.e--doo.w;
drawarrow col.e--doo.w;
drawarrow clo.e--dol.w withcolor red;
drawarrow cll.e--dol.w;
drawarrow doo.e--eoo.w;
drawarrow dol.e--eoo.w;
drawarrow dlo.e--eol.w;
drawarrow dll.e--eol.w;

% dashed arrows
drawarrow aoo.e--blo.w dashed evenly;
drawarrow aol.e--blo.w dashed evenly;
drawarrow alo.e--bll.w dashed evenly;
drawarrow all.e--bll.w dashed evenly;
drawarrow boo.e--clo.w dashed evenly withcolor red;
drawarrow bol.e--clo.w dashed evenly;
drawarrow blo.e--cll.w dashed evenly;
drawarrow bll.e--cll.w dashed evenly;
drawarrow coo.e--dlo.w dashed evenly;
drawarrow col.e--dlo.w dashed evenly;
drawarrow clo.e--dll.w dashed evenly;
drawarrow cll.e--dll.w dashed evenly;
drawarrow doo.e--elo.w dashed evenly;
drawarrow dol.e--elo.w dashed evenly withcolor red;
drawarrow dlo.e--ell.w dashed evenly;
drawarrow dll.e--ell.w dashed evenly;


The following commands were used to compile this into an SVG file:

mpost fig.mp
ps2pdf -dEPSCrop fig.1 fig.pdf
pstoedit -page 1 -dt -xscale 2 -yscale 2 -f sk fig.pdf fig.sk
inkscape -z --vacuum-defs -f fig.sk -l fig.svg

Public Domain


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