Ich habe mithilfe der Flächenfunktion in Matlab ein einfaches Phasendiagramm erstellt.
Ich habe es mithilfe der Funktion matlab2tikz in Tikz konvertiert, die folgenden Code generiert:
\documentclass[tikz]{standalone}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{pgfplots}
\usepackage{grffile}
\pgfplotsset{compat=newest}
\usetikzlibrary{plotmarks}
\usetikzlibrary{arrows.meta}
\usepgfplotslibrary{patchplots}
\usepackage{amsmath}
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%
\begin{tikzpicture}
\begin{axis}[%
width=0.951\fwidth,
height=\fheight,
at={(0\fwidth,0\fheight)},
scale only axis,
area style,
stack plots=y,
xmin=233.5,
xmax=373,
xlabel style={font=\color{white!15!black}},
xlabel={Temperatur in K},
ymin=10,
ymax=100,
ylabel style={font=\color{white!15!black}},
ylabel={Druck in bar},
axis background/.style={fill=white},
axis x line*=bottom,
axis y line*=left
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\closedcycle;
\end{axis}
\end{tikzpicture}%
\end{document}
Das Ergebnis sieht wie folgt aus:
Was habe ich falsch gemacht?