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-rw-r--r--graphics/pgf/base/doc/text-en/pgfmanual-en-library-er.tex14
1 files changed, 7 insertions, 7 deletions
diff --git a/graphics/pgf/base/doc/text-en/pgfmanual-en-library-er.tex b/graphics/pgf/base/doc/text-en/pgfmanual-en-library-er.tex
index 691d4e1d79..28939c1a5c 100644
--- a/graphics/pgf/base/doc/text-en/pgfmanual-en-library-er.tex
+++ b/graphics/pgf/base/doc/text-en/pgfmanual-en-library-er.tex
@@ -34,7 +34,7 @@ The package defines a simple style for drawing entities:
and a class in object-oriented programming). If this bothers you, feel free
to define a style |entity type| instead.
%
-\begin{codeexample}[]
+\begin{codeexample}[preamble={\usetikzlibrary{er,positioning}}]
\begin{tikzpicture}
\node[entity] (sheep) {Sheep};
\node[entity] (genome) [right=of sheep] {Genome};
@@ -47,7 +47,7 @@ The package defines a simple style for drawing entities:
This style is evoked by the style |entity|. To change the appearance of
entities, you can change this style.
%
-\begin{codeexample}[]
+\begin{codeexample}[preamble={\usetikzlibrary{er,positioning}}]
\begin{tikzpicture}
[every entity/.style={draw=blue!50,fill=blue!20,thick}]
\node[entity] (sheep) {Sheep};
@@ -67,7 +67,7 @@ entities.
This style works like |entity|, only it is to be used for relationships.
Again, |relationship|s are actually relationship types.
%
-\begin{codeexample}[]
+\begin{codeexample}[preamble={\usetikzlibrary{er}}]
\begin{tikzpicture}
\node[entity] (sheep) at (0,0) {Sheep};
\node[entity] (genome) at (2,0) {Genome};
@@ -82,7 +82,7 @@ entities.
\begin{stylekey}{/tikz/every relationship}
Works like |every entity|.
%
-\begin{codeexample}[]
+\begin{codeexample}[preamble={\usetikzlibrary{er}}]
\begin{tikzpicture}
[every entity/.style={fill=blue!20,draw=blue,thick},
every relationship/.style={fill=orange!20,draw=orange,thick,aspect=1.5}]
@@ -104,7 +104,7 @@ entities.
attribute to its entity, you can use, for example, the |child| command or
the |pin| option.
%
-\begin{codeexample}[]
+\begin{codeexample}[preamble={\usetikzlibrary{er}}]
\begin{tikzpicture}
\node[entity] (sheep) {Sheep}
child {node[attribute] {name}}
@@ -112,7 +112,7 @@ entities.
\end{tikzpicture}
\end{codeexample}
%
-\begin{codeexample}[]
+\begin{codeexample}[preamble={\usetikzlibrary{er}}]
\begin{tikzpicture}[every pin edge/.style=draw]
\node[entity,pin={[attribute]60:name},pin={[attribute]120:color}] {Sheep};
\end{tikzpicture}
@@ -130,7 +130,7 @@ entities.
This style is used with every attribute, and therefore also for every key
attribute.
%
-\begin{codeexample}[]
+\begin{codeexample}[preamble={\usetikzlibrary{er}}]
\begin{tikzpicture}
[text depth=1pt,
every attribute/.style={fill=black!20,draw=black},