File:EM-Wave.gif
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EM-Wave.gif (627 × 522 pixels, file size: 848 KB, MIME type: image/gif, looped, 31 frames, 3.1 s)
Summary
| Description |
English: plane linearly polarized wave
Deutsch: linear polarisierte elektromagnetische Welle |
| Date | |
| Source | Own work |
| Author | And1mu |
Source Code
|
Script to create the animation: #!/bin/bash
set -eu
DIR="animate"
FILE="EM-Wave"
NUM=0
rm -f ${DIR}/frame???.png
for ANG in $(seq 0 0.05 1.5) ; do
echo "Creating frame $NUM ..."
POS=$ANG
echo $POS $ANG
sed -i "s/\\\def\\\myt{.\+}/\\\def\\\myt{$POS}/" ${FILE}.tex
pdflatex -shell-escape ${FILE}.tex 1> /dev/null
echo "Convert to png ..."
NUMSTR=$(printf "%03d" $NUM)
convert -density 200 ${FILE}.svg -shave 3 ${DIR}/frame${NUMSTR}.png
NUM=$(($NUM+1))
done
cd $DIR
convert -delay 10 -loop 10000 frame*.png ${FILE}.gif
cd -
The code to create a single frame (EM-Wave.tex): \documentclass[crop,border=15,tikz,convert={outext=.svg,command=\unexpanded{pdf2svg
\infile\space\outfile}},multi=false]{standalone}
\usepackage{tikz-3dplot}
\def\myt{0.5}
\def\mypi{3.141592653589793}
\tdplotsetmaincoords{70}{120}
\begin{document}
\begin{tikzpicture}[>=latex,scale=1,tdplot_main_coords]
\fill[white] (-4,-4.75,-5.5) rectangle (-4,4.5,3.25);
\draw[->] (0,0,0) -- (3,0,0) node[anchor=north east]{$z$};
\draw[->] (0,-1,0) -- (0,5.5,0) node[anchor=north west]{$x$};
\draw[->] (0,0,0) -- (0,0,3) node[anchor=south]{$y$};
\tdplotsetrotatedcoords{0}{90}{90}
\draw[thick,blue,smooth,domain=-1:5,samples=200,tdplot_rotated_coords] plot
function {2*sin(4*(x-\myt))};
\tdplotsetrotatedcoords{0}{0}{90}
\draw[thick,red,smooth,domain=-1:5,samples=200,tdplot_rotated_coords] plot
function {-2*sin(4*(x-\myt))};
%\tdplotsetrotatedcoords{0}{0}{0}
\foreach \a in {-1,-0.9,...,5}{
\def\E{{2*sin(4*180/\mypi*(\a-\myt))}}
\draw[blue] (0,\a,0) -- (0,\a,\E);
\draw[red] (0,\a,0) -- (\E,\a,0);
}
\draw[ultra thick,blue,->,tips=proper] (0,5,0) --
(0,5,{2*sin(4*180/\mypi*(5-\myt))}) node[anchor=west]{$\vec{E}$};
\draw[ultra thick,red,->,tips=proper] (0,5,0) --
({2*sin(4*180/\mypi*(5-\myt))},5,0) node[anchor=north west]{$\vec{B}$};
\end{tikzpicture}
\end{document}
|
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:31, 14 May 2021 | | 627 × 522 (848 KB) | wikimediacommons>Schwunkel | Reverted to version as of 18:31, 1 June 2017 (UTC) |
File usage
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