Draw a decagon in LaTeX

TeX - LaTeX Asked on January 5, 2022

I need to draw a graph with 10 nodes in LaTeX. I thought about doing it with tikz and try to give exact coordinates to draw a decagon but I don’t know what coordinates to give.

A solution with PSTricks only for either fun or comparison purposes.

curvepnodes is useful to define an array of nodes for any given number of nodes and curve functions. For example, we can use it to make an array of 12 nodes on a circle. Offset is provided as the rotation offset.

documentclass[pstricks,margin=5mm]{standalone}
usepackage{pst-node,pst-plot}

begin{document}
begin{pspicture}[showpoints,dotscale=1](-4,-4)(4,4)
pstVerb{/Offset 30 def}%
psnpolygon[linecolor=red](0,numexprAnodecount-1){A}
end{pspicture}
end{document}


Animated version

documentclass[pstricks,margin=5mm]{standalone}
usepackage{pst-node,pst-plot}

begin{document}
multido{i=0+10}{10}{%
begin{pspicture}[showpoints,dotscale=6](-4,-4)(4,4)
pstVerb{/Offset ispace def}%
psnpolygon[linecolor=red](0,numexprAnodecount-1){A}
end{pspicture}}
end{document}


Answered by Unreal Engine 5 Coming Soon on January 5, 2022

In this link you can find a series of regular polygons...I have changed the code to have the penthagon. Here the drawing is without coordinates.

documentclass[12pt]{article}
usepackage{tikz}
begin{document}
newdimenR
R=1cm
This is a pentagon $n=10$,
begin{tikzpicture}
draw[yshift=-6.0R] (0:R) foreach x in {36,72,...,359} {
-- (x:R)
} -- cycle (90:R) node[above] {$scriptstyle n=10$} ;
end{tikzpicture}
that it could be used as a symbol.
end{document}


Answered by Sebastiano on January 5, 2022