├── LICENSE ├── README ├── examples ├── neural-networks-ebook.pdf ├── neuralnetwork.pdf ├── neuralnetwork.sty ├── neuralnetwork.tex ├── xor.pdf └── xor.tex └── neuralnetwork.sty /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. By contrast, the GNU General Public 13 | License is intended to guarantee your freedom to share and change free 14 | software--to make sure the software is free for all its users. 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It is safest 289 | to attach them to the start of each source file to most effectively 290 | convey the exclusion of warranty; and each file should have at least 291 | the "copyright" line and a pointer to where the full notice is found. 292 | 293 | LaTeX/TikZ/PGF package for drawing graphs, particularly neural networks. 294 | Copyright (C) 2013 Mark K Cowan 295 | 296 | This program is free software; you can redistribute it and/or modify 297 | it under the terms of the GNU General Public License as published by 298 | the Free Software Foundation; either version 2 of the License, or 299 | (at your option) any later version. 300 | 301 | This program is distributed in the hope that it will be useful, 302 | but WITHOUT ANY WARRANTY; without even the implied warranty of 303 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304 | GNU General Public License for more details. 305 | 306 | You should have received a copy of the GNU General Public License along 307 | with this program; if not, write to the Free Software Foundation, Inc., 308 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 309 | 310 | Also add information on how to contact you by electronic and paper mail. 311 | 312 | If the program is interactive, make it output a short notice like this 313 | when it starts in an interactive mode: 314 | 315 | Gnomovision version 69, Copyright (C) year name of author 316 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 317 | This is free software, and you are welcome to redistribute it 318 | under certain conditions; type `show c' for details. 319 | 320 | The hypothetical commands `show w' and `show c' should show the appropriate 321 | parts of the General Public License. Of course, the commands you use may 322 | be called something other than `show w' and `show c'; they could even be 323 | mouse-clicks or menu items--whatever suits your program. 324 | 325 | You should also get your employer (if you work as a programmer) or your 326 | school, if any, to sign a "copyright disclaimer" for the program, if 327 | necessary. Here is a sample; alter the names: 328 | 329 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330 | `Gnomovision' (which makes passes at compilers) written by James Hacker. 331 | 332 | {signature of Ty Coon}, 1 April 1989 333 | Ty Coon, President of Vice 334 | 335 | This General Public License does not permit incorporating your program into 336 | proprietary programs. If your program is a subroutine library, you may 337 | consider it more useful to permit linking proprietary applications with the 338 | library. If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | -------------------------------------------------------------------------------- /README: -------------------------------------------------------------------------------- 1 | ***NOTE*** CTAN isn't letting me update their copy of the package and I don't have time to waste chasing it. 2 | 3 | ** The CTAN version is *out of date. ** 4 | 5 | ** The Github repository has the most up-to-date version. ** 6 | 7 | 8 | Title: 9 | Neural Network 10 | 11 | Author: 12 | Mark K Cowan, mark@battlesnake.co.uk 13 | 14 | Installation: 15 | The most up-to-date version of this package is available as a git repository: 16 | battlesnake/neural 17 | https://github.com/battlesnake/neural 18 | 19 | This package is also available on CTAN as `neuralnetwork`: 20 | /graphics/pgf/contrib/neuralnetwork 21 | http://www.ctan.org/tex-archive/graphics/pgf/contrib/neuralnetwork 22 | 23 | Description: 24 | LaTeX package for drawing graphs, particularly neural network diagrams. 25 | 26 | % Diagram is created via the neuralnetwork environment 27 | \begin{neuralnetwork} [nodespacing=10mm, layerspacing=25mm, 28 | maintitleheight=2.5em, layertitleheight=2.5em, 29 | height=5, toprow=false, nodesize=17pt, style={}, 30 | title={}, titlestyle={}] 31 | % nodespacing = vertical spacing between nodes 32 | % layerspacing = horizontal spacing between layers 33 | % maintitleheight = space reserved for main title 34 | % layertitleheight = space reserved for layer titles 35 | % height = max nodes in any one layer [REQUIRED] 36 | % toprow = top row in node space reserved for bias nodes 37 | % nodesize = size of nodes 38 | % style = style for internal "tikzpicture" environment 39 | % titlestyle = style for main title 40 | 41 | % To customize the text within nodes, define a macro like: 42 | \newcommand{\mynodetext}[2] { 43 | % layer=#1, node=#2 44 | } 45 | % The assign it: 46 | \setdefaultnodetext{\mynodetext} 47 | 48 | % To draw a layer (advanced): 49 | \layer[title={}, titlestyle={}, count=5, 50 | nodeclass={hidden neuron}, biaspos=top 51 | top=false, exclude={}, widetitle=false, 52 | bias={}] 53 | % title = layer title 54 | % titlestyle = style for layer title 55 | % count = nodes in this layer (excl. bias node) 56 | % nodeclass = class of node: 57 | % "neuron", which is base class for: 58 | % "input neuron" 59 | % "output neuron" 60 | % "hidden neuron" 61 | % biaspos = position of bias node: 62 | % "top" - immediately above other nodes 63 | % "top row" - at the top of the node space, in 64 | % the area reserved by setting parameter 65 | % "toprow = true" on the "neuralnetwork" 66 | % environment 67 | % "center" - center of layer 68 | % "center left" - left of "center" 69 | % "center right" - right of "center" 70 | % "center left left" - left of "center left" 71 | % "center right right" - right of "center right" 72 | % top = layer is vertically aligned to the top, not the middle 73 | % exclude = one-based indices of nodes to avoid drawing 74 | % widetitle = allocate extra horizontal space for layer title 75 | % bias = true to add a bias node, false otherwise [REQUIRED] 76 | 77 | % To draw a layer (simpler): 78 | % "\layer" is wrapped up into some simpler macros, which can 79 | % accept the same parameters as "\layer" 80 | \inputlayer[count=16] % bias=true, nodeclass={input neuron} 81 | \hiddenlayer[count=12] % bias=true, nodeclass={hidden neuron} 82 | \linklayers 83 | \hiddenlayer[count=12] % bias=true, nodeclass={hidden neuron} 84 | \linklayers 85 | \outputlayer[count=3] % bias=false, nodeclass={output neuron} 86 | \linklayers 87 | 88 | % "\linklayers" links every node in the previous layer to the 89 | % layer before it. 90 | 91 | % To customize the text on the links, define a macro like: 92 | \newcommand{\mylinktext}[4] { 93 | % from layer=#1, from node=#2 94 | % to layer=#3, to node=#4 95 | } 96 | % Then assign it: 97 | \setdefaultlinklabel{\mylinktext} 98 | 99 | % To link the nodes of the previous two layers together: 100 | \linklayers[title={}, style={}, not from={}, not to={}] 101 | % title = title to put above the links (i.e. between layers) 102 | % style = passed to "style" param of "\link" 103 | % not from = one-based indices of nodes to NOT link from 104 | % not to = one-based indices of nodes to NOT link to 105 | 106 | % To draw a link from one node to another: 107 | \link[style={}, labelpos=midway, from layer, from node, 108 | to layer, to node] 109 | % style = style for the link path 110 | % labelpos = TikZ position of the label node along the path: 111 | "midway", "near end", "very near start", 112 | "at start", "pos=0.35", etc 113 | % from layer = layer to link from [REQUIRED] 114 | % from node = node to link from [REQUIRED] 115 | % to layer = layer to link to [REQUIRED] 116 | % to node = node to link to [REQUIRED] 117 | 118 | \end{neuralnetwork} 119 | -------------------------------------------------------------------------------- /examples/neural-networks-ebook.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/battlesnake/neural/7a544a98133d41ed7c478ff96ef049bd5f96ab0b/examples/neural-networks-ebook.pdf -------------------------------------------------------------------------------- /examples/neuralnetwork.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/battlesnake/neural/7a544a98133d41ed7c478ff96ef049bd5f96ab0b/examples/neuralnetwork.pdf -------------------------------------------------------------------------------- /examples/neuralnetwork.sty: -------------------------------------------------------------------------------- 1 | ../neuralnetwork.sty -------------------------------------------------------------------------------- /examples/neuralnetwork.tex: -------------------------------------------------------------------------------- 1 | \documentclass{standalone} 2 | 3 | \usepackage{neuralnetwork} 4 | 5 | \begin{document} 6 | \begin{neuralnetwork}[height=4] 7 | \newcommand{\nodetextclear}[2]{} 8 | \newcommand{\nodetextx}[2]{$x_#2$} 9 | \newcommand{\nodetexty}[2]{$y_#2$} 10 | \inputlayer[count=4, bias=false, title=Input\\layer, text=\nodetextx] 11 | \hiddenlayer[count=5, bias=false, title=Hidden\\layer, text=\nodetextclear] \linklayers 12 | \outputlayer[count=3, title=Output\\layer, text=\nodetexty] \linklayers 13 | \end{neuralnetwork} 14 | \end{document} 15 | -------------------------------------------------------------------------------- /examples/xor.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/battlesnake/neural/7a544a98133d41ed7c478ff96ef049bd5f96ab0b/examples/xor.pdf -------------------------------------------------------------------------------- /examples/xor.tex: -------------------------------------------------------------------------------- 1 | \documentclass{standalone} 2 | 3 | \usepackage{neuralnetwork} 4 | 5 | \begin{document} 6 | \begin{neuralnetwork}[height=2.5, layertitleheight=0, nodespacing=2.8cm, layerspacing=1.7cm] 7 | \newcommand{\nodetextclear}[2]{} 8 | \newcommand{\nodetextxnb}[2]{\ifnum0=#2 \else $x_#2$ \fi} 9 | \newcommand{\logiclabel}[1]{\,{$\scriptstyle#1$}\,} 10 | \newcommand{\nodetextY}[2]{$y$} 11 | \newcommand{\linklabelsU}[4]{\logiclabel{+1}} 12 | \newcommand{\linklabelsA}[4]{\ifnum0=#2 \logiclabel{+3} \else \logiclabel{-2} \fi} 13 | \setdefaultnodetext{\nodetextclear} 14 | % Input layer 15 | \inputlayer[count=2, bias=false, text=\nodetextxnb] 16 | % links to first hidden layer from input layer 17 | \hiddenlayer[count=3, bias=false, exclude={1, 3}] 18 | \link[from layer=0, to layer=1, from node=1, to node=2, label=\linklabelsA] 19 | \link[from layer=0, to layer=1, from node=2, to node=2, label=\linklabelsA] 20 | \hiddenlayer[count=2, bias=true, biaspos=center] 21 | % links to second hidden layer from input and first hidden layer 22 | \link[from layer=0, to layer=2, from node=1, to node=1, label=\linklabelsA] 23 | \link[from layer=1, to layer=2, from node=2, to node=1, label=\linklabelsA] 24 | \link[from layer=1, to layer=2, from node=2, to node=2, label=\linklabelsA] 25 | \link[from layer=0, to layer=2, from node=2, to node=2, label=\linklabelsA] 26 | \outputlayer[count=1, text=\nodetextY] 27 | % links to output layer from second hidden layer 28 | \link[from layer=2, to layer=3, from node=1, to node=1, label=\linklabelsA] 29 | \link[from layer=2, to layer=3, from node=2, to node=1, label=\linklabelsA] 30 | % links from bias node 31 | \link[from layer=2, to layer=1, from node=0, to node=2, label=\linklabelsA] 32 | \link[from layer=2, to layer=2, from node=0, to node=1, label=\linklabelsA] 33 | \link[from layer=2, to layer=2, from node=0, to node=2, label=\linklabelsA] 34 | \link[from layer=2, to layer=3, from node=0, to node=1, label=\linklabelsA] 35 | \end{neuralnetwork} 36 | \end{document} 37 | -------------------------------------------------------------------------------- /neuralnetwork.sty: -------------------------------------------------------------------------------- 1 | \ProvidesPackage{neuralnetwork}[2013/07/18 v1.0 Neural network diagrams, Mark Kuckian Cowan, mark@battlesnake.co.uk] 2 | 3 | % 4 | % Available from github: 5 | % git clone https://github.com/battlesnake/neural 6 | % 7 | % Distributed under the terms of the GNU General Public License version 2 (GPL2) 8 | % 9 | 10 | \NeedsTeXFormat{LaTeX2e} 11 | 12 | \RequirePackage{environ} 13 | \RequirePackage{etoolbox} 14 | \RequirePackage{xkeyval} 15 | \RequirePackage{tikz} 16 | \RequirePackage{algorithmicx} 17 | \RequirePackage{mathtools} 18 | 19 | \usetikzlibrary{shapes} 20 | 21 | \newcommand{\nn@var}[1] {\@ifundefined{c@nn@#1@counter}{\newcounter{nn@#1@counter}}{\nn@set{#1}{0}}} 22 | \newcommand{\nn@set}[2] {\setcounter{nn@#1@counter}{{#2}}} 23 | \newcommand{\nn@get}[1] {\arabic{nn@#1@counter}} 24 | \newcommand{\nn@inc}[1] {\stepcounter{nn@#1@counter}} 25 | \newcommand{\nn@del}[1] {\stepcounter{nn@#1@counter}} 26 | 27 | \define@key{network}{nodespacing} {\pgfmathsetlengthmacro\nn@nodespacing{#1}} 28 | \define@key{network}{layerspacing} {\pgfmathsetlengthmacro\nn@layerspacing{#1}} 29 | \define@key{network}{height} {\def\nn@height{#1}} 30 | \define@key{network}{maintitleheight} {\pgfmathsetlengthmacro\nn@maintitleheight{#1}} 31 | \define@key{network}{layertitleheight} {\pgfmathsetlengthmacro\nn@layertitleheight{#1}} 32 | \define@boolkey{network}{toprow} {\ifKV@network@toprow\def\nn@toprow{1}\else\def\nn@toprow{0}\fi} 33 | \define@key{network}{style} {\def\nn@style{#1}} 34 | \define@key{network}{nodesize} {\pgfmathsetlengthmacro\nn@nodesize{#1}} 35 | \define@key{network}{title} {\def\nn@maintitle{#1}} 36 | \define@key{network}{titlestyle} {\def\nn@titlestyle{#1}} 37 | 38 | \NewEnviron{neuralnetwork}[1][] {{% 39 | \begingroup 40 | \setkeys{network} {nodespacing=1.0cm, layerspacing=2.5cm, maintitleheight=2.5em, layertitleheight=2.5em, height=5, toprow=false, nodesize=17pt, style={}, title={}, titlestyle={}, #1} 41 | \edef\nn@tikzpic@styled{\noexpand\begin{tikzpicture}[\nn@style]} 42 | \nn@tikzpic@styled 43 | \tikzstyle{neuron}=[circle,fill=black!25,minimum size=\nn@nodesize,inner sep=0pt] 44 | \tikzstyle{input neuron}=[neuron, fill=green!50]; 45 | \tikzstyle{output neuron}=[neuron, fill=red!50]; 46 | \tikzstyle{hidden neuron}=[neuron, fill=blue!40]; 47 | \tikzstyle{bias neuron}=[neuron, fill=yellow!50]; 48 | \tikzstyle{layertitle} = [text width=\nn@layerspacing - (1 em), text centered]; 49 | \tikzstyle{layertitlewide} = [layertitle, text width=\nn@layerspacing + (2 em)]; 50 | \tikzstyle{linkstitle} = [text centered, fill=white, text=darkgray, fill opacity=0.45, text opacity=1.0, inner sep=2pt, ellipse]; 51 | \tikzstyle{linklabel} = [rectangle, fill=white, text opacity=1.0, text=black, text centered, inner sep=0pt]; 52 | \tikzstyle{link} = [->, shorten <=0pt, shorten >=1pt, node distance=\nn@layerspacing, thin, draw=black!45]; 53 | \tikzstyle{networktitle} = [rectangle, text=black, text centered, inner sep=0pt]; 54 | \nn@var{layerindex} 55 | \nn@var{lastlayerstart} \nn@var{thislayerstart} 56 | \nn@var{lastlayercount} \nn@var{thislayercount} 57 | \nn@var{lastlayerindex} \nn@var{thislayerindex} 58 | \def\nnlinkbasestyle{} 59 | \def\nnlinkextrastyle{} 60 | \def\nnlinklabelbasestyle{} 61 | \def\nnlinklabelextrastyle{} 62 | \newcommand{\nn@layerindex}{\nn@get{layerindex}} 63 | \hfuzz=\maxdimen 64 | %\tolerance=10000 65 | %\hbadness=10000 66 | \ifx\nn@maintitle\empty \def\nn@maintitleheight{0} \fi 67 | { \BODY } 68 | \ifx\nn@maintitle\empty {} \else 69 | \pgfmathsetlengthmacro{\nn@width} {\nn@layerspacing * (\nn@layerindex - 1)} 70 | \pgfmathsetlengthmacro{\nn@halfwidth} {\nn@width / 2} 71 | \edef\nn@gentitle{\noexpand\node[networktitle, \nn@titlestyle] (MAIN-TITLE) at (\nn@halfwidth, 0) {\noexpand\nn@maintitle};} 72 | \nn@gentitle 73 | \fi 74 | \end{tikzpicture} 75 | \endgroup 76 | }} 77 | 78 | % For some reason latex won't accept this, and spews out a dozen meaningless error messages. 79 | % The Y version needs updating anyway to account for extra titles 80 | %\newcommand{\nnGridX}[1] {\pgfmathsetlength{\temp}{(\nn@layerspacing * #1)}\temp} 81 | %\newcommand{\nnGridY}[1] {\pgfmathsetlength{\temp}{(-\nn@nodespacing * #1 + \nn@titleheight)}\temp} 82 | 83 | \newcommand{\nn@if} {\expandafter\ifstrequal\expandafter} 84 | 85 | \newcommand{\nn@defaultnodetext}[2] {} 86 | \newcommand{\setdefaultnodetext}[1] {\renewcommand{\nn@defaultnodetext}[2]{#1{##1}{##2}}} 87 | \define@key{layer}{title} {\def\nn@layertitle{#1}} 88 | \define@boolkey{layer}{widetitle} {\ifKV@layer@widetitle\def\nn@widetitle{1}\else\def\nn@widetitle{0}\fi} 89 | \define@key{layer}{count} {\def\nn@nodecount{#1}} 90 | \define@key{layer}{text} {\renewcommand{\nn@nodecaption}[2]{#1{##1}{##2}}} 91 | \define@boolkey{layer}{bias} {\ifKV@layer@bias\def\nn@bias{1}\else\def\nn@bias{0}\fi} 92 | \define@key{layer}{title} {\def\nn@layertitle{#1}} 93 | \define@key{layer}{nodeclass} {\def\nn@nodeclass{#1}} 94 | \define@boolkey{layer}{top} {\ifKV@layer@top\def\nn@top{1}\else\def\nn@top{0}\fi} 95 | \define@key{layer}{biaspos} {\def\nn@biaspos{#1}} 96 | \define@key{layer}{exclude} {\def\nn@exclude{#1}} 97 | \define@key{layer}{titlestyle} {\def\nn@layertitlestyle{#1}} 98 | \newcommand{\layer}[1][] {{% 99 | \newcommand{\nn@nodecaption}[2]{} 100 | \setkeys{layer} {title={}, titlestyle={}, count=5, text=\nn@defaultnodetext, nodeclass={hidden neuron}, biaspos=top, top=false, exclude={}, widetitle=false, #1} 101 | % Linkage stuff 102 | \nn@set{lastlayercount}{\nn@get{thislayercount}} 103 | \nn@set{lastlayerstart}{\nn@get{thislayerstart}} 104 | \nn@set{lastlayerindex}{\nn@get{thislayerindex}} 105 | % Get start index 106 | \pgfmathtruncatemacro{\nn@startindex} {1 - \nn@bias} 107 | % Get y-offset 108 | \pgfmathsetlengthmacro{\nn@titles} {\nn@maintitleheight + \nn@layertitleheight} 109 | \if \nn@top 1 110 | \pgfmathsetlengthmacro{\nn@offset} {\nn@titles} 111 | \def\nn@biaspos{top} 112 | \else 113 | \pgfmathsetlengthmacro{\nn@offset} {\nn@titles + \nn@nodespacing * (\nn@height - (1 + \nn@nodecount - \nn@startindex)) / 2} 114 | \fi 115 | % Get x-position 116 | \pgfmathsetlengthmacro{\nn@node@x} {\nn@layerspacing * \nn@layerindex} 117 | % Draw bias node if needed 118 | \pgfmathtruncatemacro{\nn@startindex@draw}{\nn@startindex} 119 | \if \nn@bias 1 120 | % Get xy-position of bias node and update position range for other nodes 121 | \newcommand{\nn@node@xb} {} 122 | \def\nn@bias@own@row{0} 123 | \nn@if{\nn@biaspos}{top} { 124 | \pgfmathsetlengthmacro{\nn@node@y} {-\nn@offset} 125 | \pgfmathsetlengthmacro{\nn@node@xb} {\nn@node@x} 126 | \def\nn@bias@own@row{1} 127 | \if \nn@toprow 1 128 | \def\nn@biaspos{top row} 129 | \fi 130 | } 131 | \nn@if{\nn@biaspos}{top row} { 132 | \pgfmathsetlengthmacro{\nn@node@y} {-\nn@titles} 133 | \pgfmathsetlengthmacro{\nn@node@xb} {\nn@node@x} 134 | \def\nn@bias@own@row{1} 135 | } 136 | % Does the bias node have its own row ("top" or "top row")? 137 | \nn@if{\nn@bias@own@row}{0} { 138 | \pgfmathsetlengthmacro{\nn@offset} {\nn@offset - (\nn@nodespacing / 2)} 139 | \pgfmathsetlengthmacro{\nn@node@y} {-(\nn@nodespacing * ((\nn@nodecount+1)/2 - \nn@startindex@draw) + \nn@offset)} 140 | } 141 | % Centered vertical position 142 | % The "dummy" line is necessary to overcome some LaTeX bug, the first line in the list below always seems to get ignored by the parser. 143 | \nn@if{\nn@biaspos}{dummy} { \pgfmathsetlengthmacro{\nn@node@xb} {\nn@node@x} } 144 | \nn@if{\nn@biaspos}{center} { \pgfmathsetlengthmacro{\nn@node@xb} {\nn@node@x} } 145 | \nn@if{\nn@biaspos}{center right} { \pgfmathsetlengthmacro{\nn@node@xb} {\nn@node@x + (1*\nn@layerspacing / 4)} } 146 | \nn@if{\nn@biaspos}{center left} { \pgfmathsetlengthmacro{\nn@node@xb} {\nn@node@x - (1*\nn@layerspacing / 4)} } 147 | \nn@if{\nn@biaspos}{center right right} { \pgfmathsetlengthmacro{\nn@node@xb} {\nn@node@x + (2*\nn@layerspacing / 3)} } 148 | \nn@if{\nn@biaspos}{center left left} { \pgfmathsetlengthmacro{\nn@node@xb} {\nn@node@x - (2*\nn@layerspacing / 3)} } 149 | % Error check 150 | \nn@if{\nn@node@xb}{} { 151 | \PackageError{neuralnetwork}{Unknown bias node position: "\nn@biaspos"} 152 | } 153 | % Draw node 154 | \node[bias neuron] (L\nn@layerindex-0) at (\nn@node@xb, \nn@node@y) {\nn@nodecaption{\nn@layerindex}{0}}; 155 | \fi 156 | % Adjust unbiased layer if bias nodes have their own top row 157 | \if \nn@toprow 1 158 | \if \nn@bias 0 159 | \pgfmathsetlengthmacro{\nn@offset}{\nn@offset + \nn@nodespacing/2} 160 | \fi 161 | \fi 162 | % Draw nodes 163 | \foreach \nn@nodeindex in {1,...,\nn@nodecount} { 164 | % Get y-position 165 | \pgfmathsetlengthmacro{\nn@node@y} {-(\nn@nodespacing * (\nn@nodeindex - \nn@startindex@draw) + \nn@offset)} 166 | % Check if the node is excluded 167 | \def\nn@dontdraw{0} 168 | \foreach \nn@excluded in \nn@exclude 169 | \if \nn@excluded \nn@nodeindex \global\def\nn@dontdraw{1} \breakforeach \fi; 170 | % Draw node if not excluded 171 | \if \nn@dontdraw 0 172 | \node[\nn@nodeclass] (L\nn@layerindex-\nn@nodeindex) at (\nn@node@x, \nn@node@y) {\nn@nodecaption{\nn@layerindex}{\nn@nodeindex}}; 173 | \fi 174 | } 175 | % Title 176 | %\if\relax\detokenize{\nn@layertitle}\relax \else 177 | \ifx\nn@layertitle\empty {} \else 178 | \edef\nn@layer@gentitle[##1]{\noexpand\node[##1, \nn@layertitlestyle] (T\nn@layerindex) at (\nn@node@x, \nn@maintitleheight) {\noexpand\nn@layertitle};} 179 | \if \nn@widetitle 1 180 | \nn@layer@gentitle[layertitlewide] 181 | \else 182 | \nn@layer@gentitle[layertitle] 183 | \fi 184 | \fi 185 | % Linkage stuff 186 | \nn@set{thislayercount}{\nn@nodecount} 187 | \nn@set{thislayerstart}{\nn@startindex} 188 | \nn@set{thislayerindex}{\nn@layerindex} 189 | \nn@inc{layerindex} 190 | }} 191 | \newcommand{\inputlayer}[1][] { \layer[bias=true,nodeclass={input neuron},#1] } 192 | \newcommand{\hiddenlayer}[1][] { \layer[bias=true,nodeclass={hidden neuron},#1] } 193 | \newcommand{\outputlayer}[1][] { \layer[bias=false,nodeclass={output neuron},#1] } 194 | 195 | \define@key{links}{title} {\def\nn@linkstitle{#1}} 196 | \define@key{links}{labels} {\def\nn@linkslabels{#1}} 197 | \define@key{links}{not from} {\def\nn@notfrom{#1}} 198 | \define@key{links}{not to} {\def\nn@notto{#1}} 199 | \define@key{links}{style} {\def\nn@linksstyle{#1}} 200 | \newcommand{\linklayers}[1][] {{% 201 | \setkeys{links} {title={},labels=\nn@defaultlinklabel,style={},not from={}, not to={},#1} 202 | % Layer indices 203 | \edef\nn@lastlayer{\nn@get{lastlayerindex}} 204 | \edef\nn@thislayer{\nn@get{thislayerindex}} 205 | % Links 206 | \foreach \nn@lastnode in {\nn@get{lastlayerstart},...,\nn@get{lastlayercount}} 207 | \foreach \nn@thisnode in {1,...,\nn@get{thislayercount}} { 208 | % Draw link if it isn't excluded 209 | \def\nn@dontdraw{0} 210 | \foreach \nn@excluded in \nn@notfrom 211 | \if \nn@excluded \nn@lastnode \global\def\nn@dontdraw{1} \breakforeach \fi; 212 | \foreach \nn@excluded in \nn@notto 213 | \if \nn@excluded \nn@thisnode \global\def\nn@dontdraw{1} \breakforeach \fi; 214 | \if \nn@dontdraw 0 215 | \link[from layer=\nn@lastlayer, from node=\nn@lastnode, to layer=\nn@thislayer, to node=\nn@thisnode, label=\nn@linkslabels, style=\nn@linksstyle]; 216 | \fi 217 | } 218 | % Title 219 | \ifdefempty{\nn@linkstitle} {} { 220 | \pgfmathsetlengthmacro{\nn@links@title@x} {\nn@layerspacing * (\nn@thislayer - 0.5)} 221 | \pgfmathsetlengthmacro{\nn@links@title@y} {-(\nn@maintitleheight + \nn@layertitleheight - (\nn@nodespacing / 6))} 222 | \node[linkstitle] (TL\nn@lastlayer) at (\nn@links@title@x, \nn@links@title@y) {\nn@linkstitle}; 223 | } 224 | }} 225 | 226 | \newcommand{\nn@defaultlinklabel}[4] {\empty} 227 | \newcommand{\setdefaultlinklabel}[1] {\renewcommand{\nn@defaultlinklabel}[4]{#1{##1}{##2}{##3}{##4}}} 228 | \define@key{link}{label} {\renewcommand{\nn@linklabel}[4]{#1{##1}{##2}{##3}{##4}}} 229 | \define@key{link}{from layer} {\def\nn@fromlayer{#1}} 230 | \define@key{link}{from node} {\def\nn@fromnode{#1}} 231 | \define@key{link}{to layer} {\def\nn@tolayer{#1}} 232 | \define@key{link}{to node} {\def\nn@tonode{#1}} 233 | \define@key{link}{labelpos} {\def\nn@labelpos{#1}} 234 | \define@key{link}{style} {\def\nn@linkstyle{#1}} 235 | \newcommand{\link}[1][] {{% 236 | \newcommand{\nn@linklabel}[4] {} 237 | \setkeys{link} {style={}, label=\nn@defaultlinklabel, labelpos=midway, #1} 238 | \edef\nn@label{\nn@linklabel{\nn@fromlayer}{\nn@fromnode}{\nn@tolayer}{\nn@tonode}} 239 | % Handle necessary expansions 240 | \def\nn@link@proto##1 { \noexpand\path[\nnlinkbasestyle, link, \nnlinkextrastyle, \nn@linkstyle] (L\nn@fromlayer-\nn@fromnode) edge ##1 (L\nn@tolayer-\nn@tonode) } 241 | \edef\nn@link@path { \nn@link@proto{} } 242 | \edef\nn@link@node { \nn@link@proto{[\noexpand\nn@labelpos] node[\nnlinklabelbasestyle, linklabel, \nnlinklabelextrastyle] {\noexpand\nn@label}} } 243 | \ifdefempty{\nn@label} { 244 | \nn@link@path; 245 | } { 246 | \nn@link@node; 247 | } 248 | }} 249 | 250 | \endinput 251 | --------------------------------------------------------------------------------