Ian Jauslin
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authorIan Jauslin <jauslin@ias.edu>2019-05-22 22:59:03 -0400
committerIan Jauslin <jauslin@ias.edu>2019-05-22 22:59:03 -0400
commitdf7449e4a29ec8d3182cf7b2aebcb86f7ac596c2 (patch)
tree182c5c85f57264b38c60a02ec268e5c00d937b34 /figs/contour.fig/contour.tikz.tex
As presented at VirginiaTech on 2019-05-24HEADv1.0master
Diffstat (limited to 'figs/contour.fig/contour.tikz.tex')
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diff --git a/figs/contour.fig/contour.tikz.tex b/figs/contour.fig/contour.tikz.tex
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+\documentclass{standalone}
+
+\usepackage{tikz}
+
+\def\pole#1{
+ \draw#1++(0.1,0.1)--++(-0.2,-0.2);
+ \draw#1++(-0.1,0.1)--++(0.2,-0.2);
+ \draw[color=red, line width=1pt]#1circle(0.3);
+}
+
+\begin{document}
+\begin{tikzpicture}
+
+% branch cut
+\fill[color=gray](-3.3,-0.1)--++(3.3,0)--++(0,0.2)--++(-3.3,0)--cycle;
+
+% axes
+\draw(-3.3,0)--++(6.6,0);
+\draw(0,-3.3)--++(0,6.6);
+
+% -ik0^2
+\pole{(0,-2)}
+
+% other poles
+\input{poles.tikz}
+
+% contour
+\draw[color=red, line width=1pt](-3.3,-0.3)--++(3.3,0);
+\draw[color=red, line width=1pt](0,-0.3)..controls(0.3,-0.3)and(0.3,0.3)..(0,0.3);
+\draw[color=red, line width=1pt](-3.3,0.3)--++(3.3,0);
+
+
+\end{tikzpicture}
+\end{document}