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Diffstat (limited to 'graphics/pgf/base/lua/graphdrawing/pgf/gd/examples/SimpleHuffman.lua')
-rw-r--r--graphics/pgf/base/lua/graphdrawing/pgf/gd/examples/SimpleHuffman.lua6
1 files changed, 4 insertions, 2 deletions
diff --git a/graphics/pgf/base/lua/graphdrawing/pgf/gd/examples/SimpleHuffman.lua b/graphics/pgf/base/lua/graphdrawing/pgf/gd/examples/SimpleHuffman.lua
index f81abf1105..6aa9bffb72 100644
--- a/graphics/pgf/base/lua/graphdrawing/pgf/gd/examples/SimpleHuffman.lua
+++ b/graphics/pgf/base/lua/graphdrawing/pgf/gd/examples/SimpleHuffman.lua
@@ -51,7 +51,8 @@ declare {
HuffmanNode/.style={/tikz/.cd,circle,inner sep=0pt,outer sep=0pt,draw,minimum size=3pt}
}
-\begin{codeexample}[]
+\begin{codeexample}[preamble={ \usetikzlibrary{graphs,graphdrawing,quotes}
+ \usegdlibrary{examples}}]
\tikz \graph [simple Huffman layout,
level distance=7mm, sibling distance=8mm, grow'=up]
{
@@ -178,6 +179,7 @@ function SimpleHuffman:run()
%
Ok, we are mainly done now. Finish by computing vertical placements
and do formal cleanup.
+ %
\begin{codeexample}[code only, tikz syntax=false]
layered.arrange_layers_by_baselines(layers, self.adjusted_bb, self.ugraph)
end
@@ -282,4 +284,4 @@ function SimpleHuffman:run()
layered.arrange_layers_by_baselines(layer, self.adjusted_bb, self.ugraph)
end
-return SimpleHuffman \ No newline at end of file
+return SimpleHuffman