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Piecharts/Piecharts.tex

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+\documentclass{article}
+\usepackage{graphicx}
+\usepackage{subcaption}
+\usepackage{hyperref}
+\usepackage{tikz}
+\usepackage{wheelchart}
+\usetikzlibrary{decorations.markings}
+\usepackage{siunitx}
+\usepackage{adjustbox}
+\definecolor{blu}{RGB}{102,140,217}
+\definecolor{giallo}{RGB}{255,153,0}
+\definecolor{rosso}{RGB}{220,57,18}
+\definecolor{viola}{RGB}{153,0,153}
+
+\setlength{\parindent}{0pt}
+
+\hypersetup{
+    colorlinks=true,
+    linkcolor=blue,
+    citecolor=blue,
+    filecolor=magenta,
+    urlcolor=blue,
+}
+
+\begin{document}
+
+
+% Insert Image at specified Position
+The following \autoref{image0} is inserted at the specified position.
+
+\begin{figure}[h]
+    \centering
+    \begin{tikzpicture}
+        \wheelchart[
+          counterclockwise,
+          data=\WCperc,
+          data style={shift={(0,0.1)}},
+          gap=0.03,
+          legend columns=2,
+          legend row={\tikz\fill[\WCvarB,draw=black] (0,0) rectangle (0.3,0.3); & \WCvarC},
+          legend={
+            \node[anchor=north] at (0,-2.5) {%
+              \begin{tabular}{*{2}{l@{ }l}}%
+              \WClegend%
+              \end{tabular}%
+            };
+          },
+          lines=0.5,
+          lines angle shift{1}=20,
+          lines angle shift{3}=-20,
+          lines ext=2,
+          lines ext left anchor=base west,
+          lines ext right anchor=base east,
+          lines sep=-1,
+          lines style={
+            postaction=decorate,
+            decoration={
+              markings,
+              mark=at position 0 with {
+                \fill (0,0) circle[radius=0.1];
+              }
+            }
+          },
+          radius={0}{2},
+          title=Open Source,
+          title style={font=\bfseries}
+        ]{
+          50/viola/Ja,
+          50/giallo/Nein
+        }
+        \end{tikzpicture}
+        \caption{image}
+        \label{image0}
+\end{figure}
+
+This Reference to \autoref{image0} was inserted below the figure at the specified position. \\\\
+
+
+It turns out that to use subfig with tikz, you need an adjustbox!
+
+\begin{figure}[h]
+    \centering
+    \begin{subfigure}[b]{0.3\textwidth}
+        \begin{adjustbox}{width=\linewidth}
+        \begin{tikzpicture}
+            \wheelchart[
+              counterclockwise,
+              data=\WCperc,
+              data style={shift={(0,0.1)}},
+              gap=0.03,
+              legend columns=2,
+              legend row={\tikz\fill[\WCvarB,draw=black] (0,0) rectangle (0.3,0.3); & \WCvarC},
+              legend={
+                \node[anchor=north] at (0,-2.5) {%
+                  \begin{tabular}{*{2}{l@{ }l}}%
+                  \WClegend%
+                  \end{tabular}%
+                };
+              },
+              lines=0.5,
+              lines angle shift{1}=20,
+              lines angle shift{3}=-20,
+              lines ext=2,
+              lines ext left anchor=base west,
+              lines ext right anchor=base east,
+              lines sep=-1,
+              lines style={
+                postaction=decorate,
+                decoration={
+                  markings,
+                  mark=at position 0 with {
+                    \fill (0,0) circle[radius=0.1];
+                  }
+                }
+              },
+              radius={0}{2},
+              title=Open Source,
+              title style={font=\bfseries}
+            ]{
+              50/viola/Ja,
+              50/giallo/Nein
+            }
+            \end{tikzpicture}
+        \end{adjustbox}
+    \end{subfigure}
+    \hfill
+    \begin{subfigure}[b]{0.3\textwidth}
+        \begin{adjustbox}{width=\linewidth}
+        \begin{tikzpicture}
+            \wheelchart[
+              counterclockwise,
+              data=\WCperc,
+              data style={shift={(0,0.1)}},
+              gap=0.03,
+              legend columns=2,
+              legend row={\tikz\fill[\WCvarB,draw=black] (0,0) rectangle (0.3,0.3); & \WCvarC},
+              legend={
+                \node[anchor=north] at (0,-2.5) {%
+                  \begin{tabular}{*{2}{l@{ }l}}%
+                  \WClegend%
+                  \end{tabular}%
+                };
+              },
+              lines=0.5,
+              lines angle shift{1}=20,
+              lines angle shift{3}=-20,
+              lines ext=2,
+              lines ext left anchor=base west,
+              lines ext right anchor=base east,
+              lines sep=-1,
+              lines style={
+                postaction=decorate,
+                decoration={
+                  markings,
+                  mark=at position 0 with {
+                    \fill (0,0) circle[radius=0.1];
+                  }
+                }
+              },
+              radius={0}{2},
+              title=Open Source,
+              title style={font=\bfseries}
+            ]{
+              50/viola/Ja,
+              50/giallo/Nein
+            }
+            \end{tikzpicture}
+        \end{adjustbox}
+    \end{subfigure}
+    \hfill
+    \begin{subfigure}[b]{0.3\textwidth}
+        \begin{adjustbox}{width=\linewidth}
+        \begin{tikzpicture}
+            \wheelchart[
+              counterclockwise,
+              data=\WCperc,
+              data style={shift={(0,0.1)}},
+              gap=0.03,
+              legend columns=2,
+              legend row={\tikz\fill[\WCvarB,draw=black] (0,0) rectangle (0.3,0.3); & \WCvarC},
+              legend={
+                \node[anchor=north] at (0,-2.5) {%
+                  \begin{tabular}{*{2}{l@{ }l}}%
+                  \WClegend%
+                  \end{tabular}%
+                };
+              },
+              lines=0.5,
+              lines angle shift{1}=20,
+              lines angle shift{3}=-20,
+              lines ext=2,
+              lines ext left anchor=base west,
+              lines ext right anchor=base east,
+              lines sep=-1,
+              lines style={
+                postaction=decorate,
+                decoration={
+                  markings,
+                  mark=at position 0 with {
+                    \fill (0,0) circle[radius=0.1];
+                  }
+                }
+              },
+              radius={0}{2},
+              title=Open Source,
+              title style={font=\bfseries}
+            ]{
+              50/viola/Ja,
+              50/giallo/Nein
+            }
+            \end{tikzpicture}
+        \end{adjustbox}
+    \end{subfigure}
+\end{figure}
+
+\pagebreak
+\listoffigures
+
+
+\end{document}