images/oe-post-recursive-diff2.tex: Added first version of the graphic.

diff --git a/images/oe-post-recursive-diff2.tex b/images/oe-post-recursive-diff2.tex
new file mode 100644 (file)
index 0000000..2fc8700
--- /dev/null
+++ b/images/oe-post-recursive-diff2.tex
@@ -0,0 +1,73 @@
+\begin{tikzpicture}[scale=0.75,auto]
+
+%\draw[fill=red!10] (0,1) rectangle (3,2);
+%\draw[fill=red!10] (.5,0) rectangle (1.5,1);
+
+%\draw[fill=blue!10] (0,3) rectangle (1,4);
+%\draw[fill=blue!10] (1,1) rectangle (2,4);
+
+% Grid
+%\path[draw,-] (0 ,2) -- (4  ,2);
+%\path[draw,-] (0 ,1) -- (4.5,1);
+%\path[draw,-] (.5,0) -- (4.5,0);
+
+% Space between nodes
+\pgfmathsetmacro{\spacingx}{1.3}
+% Amount even boxes are raised
+\pgfmathsetmacro{\offsety}{0.8}
+
+% Space between `subpictures'
+\pgfmathsetmacro{\spacingy}{.5}
+
+\pgfmathsetmacro{\subpicheight}{4 + \offsety} % Height of one sub-picture.
+
+\foreach \curzdiff in {0, 1, 2}
+{
+  \pgfmathsetmacro{\basey}{(\subpicheight + \spacingy) * (2 - \curzdiff)}
+
+  \pgfmathsetmacro{\lastzeroindex}{\curzdiff}
+  \pgfmathsetmacro{\firstoneindex}{\curzdiff+1}
+
+  % Lines
+  \foreach \x in {0, ..., 7}
+    \draw[edge] (\spacingx * \x, \basey) -- (\spacingx * \x, \basey + \subpicheight);
+
+  \draw (8 * \spacingx, \basey + + \subpicheight) node[below] {Differenz: \curzdiff};
+
+  % Even zero nodes
+  \foreach \x in {0, ..., \lastzeroindex}
+  {
+    \draw[red box]  (2 * \spacingx * \x - .5, \basey + 2 + \offsety) rectangle +(1,1);
+    \draw (2 * \spacingx * \x, \basey + 2.5 + \offsety) node {$0$};
+  }
+  % Even one nodes
+  \foreach \x in {\firstoneindex, ..., 3}
+  {
+    \draw[blue box] (2 * \spacingx * \x - .5, \basey + 2 + \offsety) rectangle +(1,1);
+    \draw (2 * \spacingx * \x, \basey + 2.5 + \offsety) node {$1$};
+  }
+
+  % Odd zero nodes
+  \foreach \x in {0, ..., 0}
+  {
+    \draw[red box]  (\spacingx + 2 * \spacingx * \x - .5, \basey + 2) rectangle +(1,1);
+    \draw (\spacingx + 2 * \spacingx * \x, \basey + 2.5) node {$0$};
+  }
+  % Odd one nodes
+  \foreach \x in {1, ..., 3}
+  {
+    \draw[blue box] (\spacingx + 2 * \spacingx * \x - .5, \basey + 2) rectangle +(1,1);
+    \draw (\spacingx + 2 * \spacingx * \x, \basey + 2.5) node {$1$};
+  }
+
+  \foreach \x in {0, ..., 2}
+    \draw[comp] (    \spacingx + 2 * \spacingx * \x, \basey + 1) node[vertex] {}
+             -- (2 * \spacingx + 2 * \spacingx * \x, \basey + 1) node[vertex] {};
+}
+
+%\foreach \x in {0, ..., 3}
+%  \draw (            \spacingx * \x + .5, -.15) node {$u_\x$};
+%\foreach \x in {0, ..., 3}
+%  \draw (\spacingx  + \spacingx * \x + .5, -.15) node {$v_\x$};
+
+\end{tikzpicture}