Ich habe Schwierigkeiten im folgenden Beispiel den Zylindermantel einzufaerben. Hat jemand eine Idee wie man da mit tikz erreicht? Oder gibt es einen besseren Weg um den Zylinder darzustellen?

Öffne in Overleaf
Code, hier editierbar zum Übersetzen:
\documentclass{standalone}
\usepackage{tikz}
\begin{document}
\tikzset{
partial ellipse/.style args={#1:#2:#3}{
insert path={+ (#1:#3) arc (#1:#2:#3)}
}
}
% copied from: https://tex.stackexchange.com/questions/123158/tikz-using-the-ellipse-command-with-a-start-and-end-angle-instead-of-an-arc
\begin{tikzpicture}
\newcommand{\wa}{7} % angle 1
\newcommand{\wb}{42} % angle 2
\newcommand{\Ra}{1} % radius 1
\newcommand{\Rb}{2} % radius 2
\newcommand{\B}{5} % width
\draw[rotate=\wa] (0,0) ellipse ({cos(\wb)*\Ra} and \Ra); % draw the small
\begin{scope}[rotate around={\wa:(({cos(\wb)*\B},{sin(\wb)*\B}))}] %fill=gray!30,opacity=0.2
\draw[] ({cos(\wb)*\B},{sin(\wb)*\B}) [partial ellipse=-90+2*\wa:90+\wb-2*\wa:{cos(\wb)*\Ra} and \Ra]; % draw half of the smaller ellipse at the rear side
\draw[dashed] ({cos(\wb)*\B},{sin(\wb)*\B}) [partial ellipse=90+\wb-2*\wa:270+2*\wa:{cos(\wb)*\Ra} and \Ra]; % draw half of the smaller ellipse at the rear side (dashed)
\end{scope}
\draw[dashed] (0,0)--({cos(\wb)*\B},{sin(\wb)*\B}); % center axis
% wall
\draw ({0-sin(\wb-2*\wa)*\Ra},{0+cos(\wb-\wa)*\Ra}) -- ({cos(\wb)*\B-sin(\wb-2*\wa)*\Ra},{sin(\wb)*\B+cos(\wb-\wa)*\Ra});
\draw ({0+sin(\wb-2*\wa)*\Ra},{0-cos(\wb-\wa)*\Ra}) -- ({cos(\wb)*\B+sin(\wb-2*\wa)*\Ra},{sin(\wb)*\B-cos(\wb-\wa)*\Ra});
\draw[->] (-0.2,0) -- (4.2,-0.5119) node[right] {x};
\draw[->] (0,-0.2) -- (0,4.2) node[above] {y};
\draw[->] (0,0) -- ({-sin(\wb+\wa)},{-cos(\wb)}) node[below] {z};
\end{tikzpicture}
\end{document}
 
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gefragt 04 Nov '18, 21:38

tikzuser's gravatar image

tikzuser
1112
Akzeptiert-Rate: 0%

Hier ist eine Möglichkeit den Zylinder einzufäben und zu schattieren.

(05 Nov '18, 21:36) Community
1
(06 Nov '18, 10:42) esdd

Wenn man den fertigen Zylinder aus shapes.geometric verwendet; gibt es fertige Befehle, zumindest für die Füllungen.

alt text

PS: Allerdings ist es scheints nicht ganz einfach, diese hintere gestrichelte Ellipse zu konstruieren...

Öffne in Overleaf
Code, hier editierbar zum Übersetzen:
\documentclass[border=5mm]{standalone}
\usepackage{tikz}
\usetikzlibrary{shapes.geometric, calc}
\begin{document}
\begin{tikzpicture}[>=stealth]
\newcommand{\w}{42} % angle 2
\node [cylinder, draw,
aspect=8.2,
%rotate =180+\w, %180+42,
shape border rotate=180,
rotate=\w,
cylinder, %text={angle=180,}
cylinder uses custom fill,
cylinder end fill=red!50,
cylinder body fill=yellow,
minimum height=6cm, minimum width=2cm] (c) {};
\coordinate (MD) at ($(c.before top)!0.5!(c.after top)$);
\coordinate (MG) at ($(c.before bottom)!0.5!(c.after bottom)$);
% KoSy
\draw[->, shorten >= -2.5cm, shorten <=3.5cm] (MG) -- (MD) node[pos=1.7]{z};
\draw[->, shorten <=-5mm] (MD) -- ([shift={(MD)}]-\w:2.5) node[pos=1.1]{x};
\draw[->, shorten <=-5mm] (MD) -- ([shift={(MD)}]90:3) node[pos=1.1]{y};
\draw[densely dashed] (MD) -- (MG);
%\fill[red] ($(c.before top)!0.5!(c.after top)$) circle(2pt);
%\fill[blue] ($(c.before bottom)!0.5!(c.after bottom)$) circle(2pt);
%\fill[red] (0,0) circle(1pt);
\end{tikzpicture}
\end{document}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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beantwortet 04 Nov '18, 23:54

cis's gravatar image

cis
9.6k104461491
Akzeptiert-Rate: 29%

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gestellte Frage: 04 Nov '18, 21:38

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zuletzt geändert: 06 Nov '18, 10:42