Ggthjy

(I guess many will view this nitpicking.) How can I replicate the soft-yet-beautiful-looking segment marks of GeoGebra.

documentclass[tikz,border=10pt]{standalone}

usepackage{tkz-euclide}

usetkzobj{all}

begin{document}

begin{tikzpicture}

    coordinate (A) at (0,0);

    coordinate (B) at (2,4);

    coordinate (C) at (4,0);



    draw(A)--(B)--(C)--cycle;

    tkzMarkSegment[pos=0.5,mark=||](A,B)

    tkzMarkSegment[pos=0.5,mark=||](B,C)

end{tikzpicture}

end{document}

You could just build your own and then have the full flexibility of controlling every aspect of its appearance.

documentclass[tikz,border=10pt]{standalone}

usetikzlibrary{decorations.markings}

begin{document}

begin{tikzpicture}[|| mark/.style={postaction=decorate,decoration={markings,

mark=at position #1 with {draw[line cap=round,mark segment] (-1pt,-2pt) -- (-1pt,2pt);

draw[line cap=round,mark segment] (1pt,-2pt) -- (1pt,2pt);

}}},mark segment/.style={thick}]

    coordinate (A) at (0,0);

    coordinate (B) at (2,4);

    coordinate (C) at (4,0);



    draw(A)--(B)--(C)--cycle;

    path[|| mark=0.5] (A) -- (B);

    path[|| mark=0.5] (B) -- (C);

end{tikzpicture}

end{document}

A more customizable version thereof is

documentclass[tikz,border=10pt]{standalone}

usetikzlibrary{decorations.markings}

begin{document}

tikzset{|| mark/.style={postaction=decorate,decoration={markings,

  mark=at position #1 with {%

   draw[line cap=round,mark segment] 

    (-pgfkeysvalueof{/tikz/mark segment distance}/2,-pgfkeysvalueof{/tikz/mark

    segment length}/2) -- (-pgfkeysvalueof{/tikz/mark segment distance}/2,pgfkeysvalueof{/tikz/mark

    segment length}/2);

   draw[line cap=round,mark segment] (pgfkeysvalueof{/tikz/mark segment distance}/2,-pgfkeysvalueof{/tikz/mark

    segment length}/2) -- (pgfkeysvalueof{/tikz/mark segment distance}/2,pgfkeysvalueof{/tikz/mark

    segment length}/2);}

  }},

 mark segment/.style={thick},

 mark segment options/.code=tikzset{mark segment/.style={#1}},

 mark segment distance/.initial=2pt,

 mark segment length/.initial=4pt

}

begin{tikzpicture}[]

    coordinate (A) at (0,0);

    coordinate (B) at (2,4);

    coordinate (C) at (4,0);



    draw(A)--(B)--(C)--cycle;

    path[|| mark=0.5] (A) -- (B);

    path[mark segment options={thick,yscale=2},|| mark=0.5] (B) -- (C);

end{tikzpicture}

end{document}

Use decorations.markings to customize the markings as you like.

To control the distance between the two ticks, just modify the x coordinates here:

draw[line cap=round, thick] (-2pt,-2pt) -- (-2pt,2pt);

draw[line cap=round, thick] (2pt,-2pt) -- (2pt,2pt);

MWE:

documentclass[tikz,border=10pt]{standalone}

usetikzlibrary{decorations.markings}

begin{document}

begin{tikzpicture}[decoration={

markings,

mark=at position .5 with

{

draw[line cap=round, thick] (-2pt,-2pt) -- (-2pt,2pt);

draw[line cap=round, thick] (2pt,-2pt) -- (2pt,2pt);

}

}

]

    coordinate (A) at (0,0);

    coordinate (B) at (2,4);

    coordinate (C) at (4,0);



    draw(A)--(B)--(C)--cycle;

    path[postaction={decorate}] (A) -- (B);

    path[postaction={decorate}] (B) -- (C);

end{tikzpicture}

end{document}