Any piste to replicate this oscillogram

Question

I need to replicate this oscillogram using LaTeX. I know a bit of TiKZ but I would like to have some tips or packages to get started building this and at the end come up my own to draw others like this.

$u(t) = 8\cos(400\pi t)$ and $i(t) = 0,2\cos(400\pi t - \dfrac{2\pi}{5})$ are examples.

My first thought was to use pgfplots. Do you have the functions of those two curves? — Torbjørn T., Aug 05 '22 at 10:59
Oscilloscope: https://texample.net/tikz/examples/textronics-oscilloscope — Cicada, Aug 05 '22 at 12:45
Start with this example https://tex.stackexchange.com/a/239296/, see https://tex.stackexchange.com/a/85963/ for changing the color of the axis lines, add the option axis lines=center to the axis environment, and note that pgfplots by default uses degrees for trig functions (e.g. https://tex.stackexchange.com/a/12956/). — Torbjørn T., Aug 05 '22 at 13:22
@TorbjørnT. I'm going to try using these resources and post the result. — Ousseynou Diagne, Aug 05 '22 at 13:32

score 1 · Answer 1 · answered Aug 05 '22 at 13:46

Maybe you could alter this, with the equations you need?

\documentclass{article}
\usepackage{pgfplots}
\usepackage[graphics,tightpage,active]{preview}
\PreviewEnvironment{tikzpicture}
\pgfplotsset{compat=1.9}
\usetikzlibrary{backgrounds}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
    ymin=-4,%
    ymax=4,%
    grid=both,%
    %axis on top
    ]
 \begin{scope}[on background layer]
\fill[blue,opacity=0.5] ({rel axis cs:0,0}) rectangle ({rel axis cs:1,1});

\end{scope}
 \addplot[domain=-360:360, white , very thick, smooth]{sin(x)}; %add equation here
\addplot[domain=-360:360, green , very thick, smooth]{2*cos(x)};% and here
\end{axis}

\end{tikzpicture}
\end{document}

Any piste to replicate this oscillogram

1 Answers1