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-rw-r--r--Master/texmf-dist/tex/generic/pgf/graphdrawing/lua/pgf/gd/trees/ChildSpec.lua7
1 files changed, 4 insertions, 3 deletions
diff --git a/Master/texmf-dist/tex/generic/pgf/graphdrawing/lua/pgf/gd/trees/ChildSpec.lua b/Master/texmf-dist/tex/generic/pgf/graphdrawing/lua/pgf/gd/trees/ChildSpec.lua
index 5af36428858..815f90d268e 100644
--- a/Master/texmf-dist/tex/generic/pgf/graphdrawing/lua/pgf/gd/trees/ChildSpec.lua
+++ b/Master/texmf-dist/tex/generic/pgf/graphdrawing/lua/pgf/gd/trees/ChildSpec.lua
@@ -13,7 +13,6 @@
---
-- @section subsection {Specifying Missing Children}
---
-- \label{section-gd-missing-children}
--
-- In the present section we discuss keys for specifying missing children
@@ -38,7 +37,8 @@
-- \item When you use the |child| syntax, you can use the |missing| key
-- with the |child| command to indicate a missing child:
-- %
--- \begin{codeexample}[]
+-- \begin{codeexample}[preamble={\usetikzlibrary{graphs,graphdrawing}
+-- \usegdlibrary{trees}}]
-- \tikz [binary tree layout, level distance=5mm]
-- \node {a}
-- child { node {b}
@@ -57,7 +57,8 @@
-- which really must be completely empty and may not even contain a
-- slash, to indicate a missing node:
-- %
--- \begin{codeexample}[]
+-- \begin{codeexample}[preamble={\usetikzlibrary{graphs,graphdrawing}
+-- \usegdlibrary{trees}}]
-- \tikz [binary tree layout, level distance=5mm]
-- \graph { a -> { b -> c -> d, e -> { , f -> { , g} } } };
-- \end{codeexample}