LaTeX Forum

\documentclass{article}
\usepackage{pgfplots}
\pgfplotsset{compat=1.12}

\begin{document}
	\begin{figure}
		\begin{tikzpicture}
		\begin{axis}[%
		,width=\textwidth
		,axis lines=center
		,xlabel={$x$}, ylabel={$y$}, zlabel={$z$}
		,xmin=-20, xmax=20, xtick={-20,20} % setzt die Ticks nur da, wo Du sie möchtest
		,ymin=-20, ymax=20, ytick={-20,20}
		,zmin=-20, zmax=20, ztick={-20,20}
		,view={50}{30} % rotation eines 3D Plots. 
		]	
		\addplot3[mark=ball,only marks,ball color=red,mark size=8] coordinates {(10,5,0)};
		\addplot3[mark=ball,only marks,ball color=green,mark size=4] coordinates {(1,2,4)};
		\addplot3[mark=ball,only marks,ball color=blue,mark size=2] coordinates {(3,-10,-3)};
		\end{axis}
		\end{tikzpicture}
	\end{figure}
\end{document}

 \documentclass{article}
\usepackage{pgfplots}
\usepackage{tikz}



\begin{document}
	\begin{tikzpicture}[scale=.05, x = {(0.8cm,0.5cm)}, y={(0cm,2cm)}, z={(1cm,-0.5cm)}]
	\draw[thick,->] (0,-50,0) -- (0,50,0) node[above] {z};
	\draw[thick,->] (0,0,-100) -- (0,0,100) node[right] {x};
	\draw[thick,->] (-100,0,0) -- (100,0,0) node[right] {y};
	
	
	\path (30,0,0) node[circle, color=red!60, fill, inner sep=3]{};
	\path (15,30,0) node[circle, color=blue!60, fill, inner sep=3]{};
	\path (-12,0,30) node[circle, color=black!60, fill, inner sep=6]{};
	\end{tikzpicture}
\end{document}

% arara: pdflatex

\documentclass{article}
\usepackage{pgfplots}
\pgfplotsset{compat=1.12} % wichtig für die Achsenlabels

\begin{document}
	\begin{figure}
		\begin{tikzpicture}
		\begin{axis}[width=\textwidth, axis lines=center,
		xlabel={$x$}, ylabel={$y$}, zlabel={$z$},
		xmin=-20, xmax=20,
		ymin=-20, ymax=20,
		zmin=-20, zmax=20]	
		\addplot3[mark=ball,only marks,ball color=red,mark size=8] coordinates {(10,5,0)}; % plus nicht nötig, geht aber auch. Achte auf die Umrandung der Bälle
		\addplot3[mark=ball,only marks,ball color=green,mark size=4] coordinates {(1,2,4)};
		\addplot3[mark=ball,only marks,ball color=blue,mark size=2] coordinates {(3,-10,-3)};
		\end{axis}
		\end{tikzpicture}
	\end{figure}
\end{document} 

\documentclass{article}
\usepackage{pgfplots}


\begin{document}
\begin{figure}
	\begin{tikzpicture}
		\begin{axis}[width=\textwidth, axis lines=center,
		xlabel={$x$}, ylabel={$y$}, zlabel={$z$},
		xmin=-20, xmax=20,
		ymin=-20, ymax=20,
		zmin=-20, zmax=20,]
	
		\addplot3+[mark=ball, only marks,] coordinates {(10,5,0) (1,2,4) (3,-10,-3)};
		
		\end{axis}
	\end{tikzpicture}
\end{figure}
\end{document}