I have two blocks drawn using TikZ/PGF, and I want to draw multiple parallel lines between them. This is the code I have.
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\documentclass{article}\usepackage{tikz}\usetikzlibrary{shapes,arrows,fadings, shadows}\usepackage{amsmath,bm,times}\begin{document}\pagestyle{empty}\tikzstyle{sensor}=[draw, fill=blue!20, text width=5em,text centered, minimum height=2.5em]\tikzstyle{naveqs} = [sensor, text width=4em, fill=gray!40,minimum height=12em, rounded corners, shade, drop shadow]\begin{tikzpicture}\node (naveq) [naveqs, name=S2P] {S/P};\node (naveq) [naveqs, name=FFT, right of=S2P,node distance=3cm] {FFT};\end{tikzpicture}\end{document}
Thanks in advance