Viele kleine Verbesserungen

documents/GeoTopo/figures/topology-3.tex

@@ -0,0 +1,75 @@
+\newenvironment{customlegend}[1][]{%
+    \begingroup
+    % inits/clears the lists (which might be populated from previous
+    % axes):
+    \csname pgfplots@init@cleared@structures\endcsname
+    \pgfplotsset{#1}%
+}{%
+    % draws the legend:
+    \csname pgfplots@createlegend\endcsname
+    \endgroup
+}%
+
+% makes \addlegendimage available (typically only available within an
+% axis environment):
+\def\addlegendimage{\csname pgfplots@addlegendimage\endcsname}
+
+%%--------------------------------
+
+% definition to insert numbers
+\pgfkeys{/pgfplots/number in legend/.style={%
+        /pgfplots/legend image code/.code={%
+            \node at (0.295,-0.0225){#1};
+        },%
+    },
+}
+
+\pgfdeclarelayer{background}
+\pgfdeclarelayer{foreground}
+\pgfsetlayers{background,main,foreground}
+\begin{tikzpicture}
+    \tikzstyle{point}=[circle,thick,draw=black,fill=black,inner sep=0pt,minimum width=4pt,minimum height=4pt]
+    \tikzstyle{smallpoint}=[circle,thick,draw=red,fill=red,inner sep=0pt,minimum width=3pt,minimum height=3pt]
+    \begin{pgfonlayer}{foreground}
+        \node (a)[point] at (0,0) {};
+        \node (b)[point] at (2,0) {};
+        \node (c)[point] at (3,0.5) {};
+        \node (d)[point] at (0,3) {};
+        \node (e)[point] at (2,3) {};
+        \node (f)[point] at (3,1.5) {};
+        \node (g)[point] at (2,2.5) {};
+        \node (h)[point] at (1,1.5) {};
+    \end{pgfonlayer}
+
+    \draw (h.center) -- (e.center) -- (f.center) -- (b.center) -- cycle;
+    \draw (h.center) -- (f.center);
+
+    \draw[green, densely dashed] (a.center) -- (d.center) -- (g.center) -- (c.center) -- cycle;
+    \draw[green, densely dashed] (a.center) -- (g.center);
+
+    \begin{pgfonlayer}{foreground}
+        \node (x)[point, red,fill=red] at (1.79,0.31) {};
+        \node (x1)[smallpoint] at (1.2,1.5) {};
+        \node (x2)[smallpoint] at (1.71,2.56) {};
+        \node (x3)[smallpoint] at (2.5,1.5) {};
+        \node (x4)[smallpoint] at (2.72,1.06) {};
+    \end{pgfonlayer}
+    \draw[blue, densely dotted] (x.center) -- (x1.center);
+    \draw[blue, densely dotted] (x.center) -- (x2.center);
+    \draw[blue, densely dotted] (x.center) -- (x3.center);
+    \draw[blue, densely dotted] (x.center) -- (x4.center);
+
+
+    \begin{customlegend}[
+    legend entries={
+        $T_1$,
+        $T_2$,
+        $?$
+    },
+    legend style={at={(4.5,3.5)},font=\footnotesize}] % <= to define position and font legend
+    % the following are the "images" and numbers in the legend
+        \addlegendimage{black}
+        \addlegendimage{green,densely dashed}
+        \addlegendimage{blue, densely dotted}
+    \end{customlegend}
+\end{tikzpicture}

documents/GeoTopo/figures/topology-oktaeder.tex

@@ -5,7 +5,7 @@
     \node (c)[point] at (3,1) {};
     \node (d)[point] at (1,1) {};
     \node (e)[point] at (1.5,3) {};
-    \node (f)[point] at (1.5,-2) {};
+    \node (f)[point] at (1.5,-1) {};
     \draw (a.center) -- (b.center) -- (c.center) -- (e.center) -- (b.center);
     \draw (a.center) -- (e.center);
     \draw[dashed] (a.center) -- (d.center) -- (c.center);