Add missing preamble to ComponentDirection.lua

hansonchar · Jun 20, 2024 · 16fcc9d · 16fcc9d
1 parent 71b3f6c
commit 16fcc9d
Showing 1 changed file with 15 additions and 13 deletions.
diff --git a/tex/generic/pgf/graphdrawing/lua/pgf/gd/control/ComponentDirection.lua b/tex/generic/pgf/graphdrawing/lua/pgf/gd/control/ComponentDirection.lua
@@ -38,19 +38,21 @@ declare {
     by this option in any way. You can use the |grow| option or |orient|
     options to orient individual components.
   "]],
-  examples = {[["
-    \tikz \graph [tree layout, nodes={inner sep=1pt,draw,circle},
-                  component direction=left]
-      { a, b, c -- d -- e, f -- g };
-  "]],[["
-    \tikz \graph [tree layout, nodes={inner sep=1pt,draw,circle},
-                  component direction=10]
-      { a, b, c -- d -- e, f -- g };
-  "]],[["
-    \tikz \graph [tree layout, nodes={inner sep=1pt,draw,circle},
-                  component direction=up]
-       { a, b, c [grow=right] -- d -- e, f[grow=45] -- g };
-  "]]
+  examples = {
+    options = [[preamble=\usetikzlibrary{graphs,graphdrawing} \usegdlibrary{trees}]],
+    [["
+      \tikz \graph [tree layout, nodes={inner sep=1pt,draw,circle},
+                    component direction=left]
+        { a, b, c -- d -- e, f -- g };
+    "]],[["
+      \tikz \graph [tree layout, nodes={inner sep=1pt,draw,circle},
+                    component direction=10]
+        { a, b, c -- d -- e, f -- g };
+    "]],[["
+      \tikz \graph [tree layout, nodes={inner sep=1pt,draw,circle},
+                    component direction=up]
+        { a, b, c [grow=right] -- d -- e, f[grow=45] -- g };
+    "]]
   }
 }