Making the environment of A Cap B less thick

Question

How do I decrease the thickness of the line encompassing A intersection B? This is my Code:

\documeentclass{book}
\usepackage{tikz}
\usetikzlibrary{patterns}
\begin{document}
\begin{venndiagram2sets}[tikzoptions={scale=1.7, line width = 0.2cm}, labelA= {}, labelB={}, showframe=false, shade={}]
\setpostvennhook{
\draw (labelA) node[above=0.2cm, left=1.1cm]{\LARGE $A$};
\draw (labelB) node[above=0.2cm, right=1.1cm]{\LARGE $B$};}
\begin{scope}[pattern= horizontal lines]
\fillACapB
\end{scope}
\begin{scope}[pattern= north east lines]
\fillACapB
\end{scope}
\end{venndiagram2sets}
\end{document}

I want it to be something like this:

Maybe have a look at: https://tex.stackexchange.com/questions/9681/how-to-draw-venn-diagrams-especially-complements-in-latex it might help. — Paul A, Jun 18 '22 at 12:37
Or https://latexdraw.com/how-to-draw-venn-diagrams-in-latex/ — Paul A, Jun 18 '22 at 12:44
Worst case you have to draw the diagram manually. Should not be very hard, figure out some way to draw circle section, fill a region, draw an arc etc. — user202729, Jun 18 '22 at 13:01

hpekristiansen · Accepted Answer · 2022-06-21T11:54:36.720

5

\documentclass[tikz, border=1cm]{standalone}
\usetikzlibrary{patterns}
\begin{document}
\begin{tikzpicture}
\draw[line width=8pt] (0,0) circle[radius=2cm] (3,0) circle[radius=2cm];
\filldraw[fill=white] (0,0) circle[radius=2cm] (3,0) circle[radius=2cm];
\clip (0,0) circle[radius=2cm];
\fill[pattern=crosshatch] (3,0) circle[radius=2cm];
\end{tikzpicture}
\end{document}

\documentclass[tikz, border=1cm]{standalone}
\usetikzlibrary{patterns}
\begin{document}
\begin{tikzpicture}
\draw[line width=8pt] (0,0) circle[radius=2cm] (3,0) circle[radius=2cm] (60:3) circle[radius=2cm];
\filldraw[fill=white] (0,0) circle[radius=2cm] (3,0) circle[radius=2cm] (60:3) circle[radius=2cm];
\clip (0,0) circle[radius=2cm];
\clip (60:3) circle[radius=2cm];
\fill[pattern=crosshatch] (3,0) circle[radius=2cm];
\end{tikzpicture}
\end{document}

edited Jun 21 '22 at 11:54

answered Jun 18 '22 at 20:19

hpekristiansen

37,006

Please can you also help me with the one of three sets A, B and C shaded in A intersection B intersection C. Please. Thank you so much for this. – Abdulhafeez Ayinde Abdulsalam Jun 21 '22 at 11:45
See edit. You should normally start a new question for addition questions. -remember there is no limit on how many new question you can ask, and if you show some effort, all question will attract helpfull people. – hpekristiansen Jun 21 '22 at 11:56
Thank you. I will note that. – Abdulhafeez Ayinde Abdulsalam Jun 21 '22 at 12:15

SebGlav · Answer 2 · 2022-06-18T20:14:29.983

Just to play a bit (if you want to do more complex diagrams, you'll have to calculate the angles more accurately).

\documentclass[tikz,border=3.14mm]{standalone}
\usetikzlibrary{intersections}
\begin{document}
    \begin{tikzpicture}
        \path[name path=circleA] (0,0) circle [radius=3];
        \path[name path=circleB] (4,0) circle [radius=3];
        \path[name intersections={of=circleA and circleB}] ;
        \draw[red,fill=orange] (intersection-1) arc(132:228:3) arc(-48:48:3);
        \draw[red,line width=3pt] (intersection-1) arc(48:312:3) arc(-132:132:3) -- cycle; 
    \end{tikzpicture}
\end{document}

EDIT

A second approach (which I don't really like because of the white fill which doesn't allow to have something under the picture, but anyway it's quite unlikely) is the following where the lines seem better to my eyes.

\documentclass[tikz,border=3.14mm]{standalone}
\usetikzlibrary{intersections}
\begin{document}
    \begin{tikzpicture}
        \path[name path=circleA] (0,0) circle [radius=3];
        \path[name path=circleB] (4,0) circle [radius=3];
        \path[name intersections={of=circleA and circleB}] ;
    \draw[red,line width=15pt] (intersection-1) arc(48:312:3) arc(-132:132:3) -- cycle; 
    \fill[white] (intersection-1) arc(48:312:3) arc(-132:132:3) -- cycle; 
    \draw[red,fill=orange] (intersection-1) arc(132:228:3) arc(-48:48:3);
\end{tikzpicture}

\end{document}

Making the environment of A Cap B less thick

2 Answers2

EDIT