[Tex/LaTex] How to draw bigotimes and diamond with tikz

tikz-pgf

I want to draw two figures using tikz. One is bigotimes and the other one is diamond, as you can seen in the picture below. But I don't know how to draw them. Could someone help me?

enter image description here

Best Answer

enter image description here

  \documentclass[11pt]{scrartcl}
  \usepackage{tikz}
  \usetikzlibrary{shapes.geometric}
  \begin{document}
  \begin{tikzpicture} 
     \tikzset{oplus/.style={path picture={% 
        \draw[black]
         (path picture bounding box.south west) -- (path picture bounding box.north east) 
         (path picture bounding box.north west) -- (path picture bounding box.south east);
        }}} 
      \node[oplus,fill=blue!10,draw=blue,thick,circle, scale=10] {};
      \end{tikzpicture}  
   \begin{tikzpicture}
     \node [draw,scale=8,diamond,fill=orange!50]{}; 
   \end{tikzpicture}

  \end{document}
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