4

For istance, with Tikz, I can draw a circle centered in the point (0,0) with radius 2. How can I draw a rectangle centerd in (0,0) giving height and basis?

7

Last but not least, you could use a node, whose shape is rectangle and apply its anchor to its center:

\documentclass[border=2mm]{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
    % I want to center the rectangle here
    \filldraw (0,0) node [below] {center here} circle (1pt);
    % drawing the node with shape=rectangle and anchor=center
    \node [draw, thick, shape=rectangle, minimum width=3cm, minimum height=2cm, anchor=center] at (0,0) {};
\end{tikzpicture}
\end{document}

enter image description here

3

You can use the shift key:

 \draw[shift={(2,1)}] (-3,-2) rectangle (3,2);

With this method, you can also rotate the rectangle around the center:

 \draw[shift={(2,1)},rotate=20] (-3,-2) rectangle (3,2);
1

If you use the tikzpackage calc you can achieve this quite easily.

If A is the center and dim the basis/height of the rectangle

\coordinate (A) at (2,2);
\coordinate (dim) at (3,4);

you could calculate the lower left and upper right coordinate with:

\coordinate (LL) at ($(A)-0.5*(dim)$);
\coordinate (UR) at ($(A)+0.5*(dim)$);

And then draw the rectangle between those two points.

If you need this often I recommend creating a macro for it - se here: A macro of drawing a rectangle with several parameters in TikZ

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.