\documentclass[crop,border=5,tikz,convert={outext=,   command=\unexpanded{pdf2svg \infile\space\outfile\%02d.svg     all}},multi=false]{standalone} \usetikzlibrary{math,calc,through,shapes,patterns,decorations.pathmorphing}  \def\posx{-0.5}  \begin{document} \begin{tikzpicture}[>=latex]   \fill[white] (-3,3.5) rectangle (6.5,-4.8);   \node[black!50!blue] at (1.5,3.3) {$\vec{B}$};   \fill[black!50!blue!50] (0,0) rectangle (3,3);   \begin{scope}[shift={(0.5,0.5)}]     \foreach \x in {0,1,2}{       \foreach \y in {0,1,2}{         \draw[thick,black!50!blue] (\x,\y) circle (3mm);         \draw[thick,black!50!blue]         (\x-0.21213,\y-0.21213)--(\x+0.21213,\y+0.21213);         \draw[thick,black!50!blue]         (\x+0.21213,\y-0.21213)--(\x-0.21213,\y+0.21213);       }     }   \end{scope}   \begin{scope}[shift={(\posx,0)}]     \fill[red,opacity=0.75] (-2,0.5) rectangle     (0,2.5);     \fill[white] (-3-\posx,0.5) rectangle (0-\posx,2.5);     \fill[white] (3-\posx,0.5) rectangle (6-\posx,2.5);     \draw[ultra thick] (-2,0.5) rectangle (0,2.5);     \draw[ultra thick,black!50!green,fill=black!50!green!20] (-2,1.5) circle (3mm) node[black!50!green]{$V$};     \draw[dashed] (0,1.5) --+ (0,-6);     \draw[thick,->] (-1.3,1.5) --+ (0.7,0)     node[midway,above]{$\vec{v}$};   \end{scope}   \begin{scope}[shift={(0,-1.8)}]     \draw[ultra thick,red]     (-0.5,0)--(0,0)--(2,1)--(3,1)--(5,0)--(5.5,0);     \draw[->] (0,-0.1) -- (0,1.25) node[anchor=north east]{$A$};     \draw[->] (-0.5,0) -- (6,0) node[anchor=west]{$x$};   \end{scope}   \begin{scope}[shift={(0,-3.4)}]     \draw[ultra thick,black!50!green]     (-0.5,0)--(0,0)|-(2,-1)|-(3,0)|-(5,1)|-(5.5,0);     \draw[->] (0,-1.25) -- (0,1.25) node[anchor=north east]{$U_\mathrm{ind}$};     \draw[->] (-0.5,0) -- (6,0) node[anchor=west]{$x$};   \end{scope} \end{tikzpicture}  \end{document}