# smooth curved arrow in flowchart

I am new to latex with a very little idea in tikzpicture or pgfplots, so you know what would happen... Please help me with the following flowchart-type diagram. Here the cartesian plot is a regular X vs Y plot that should be generated with a supplied table, for now, with coordinats {(0,0) (1,1)}. Thanks.

• Welcome to TeX.SX. Questions about how to draw specific graphics that just post an image of the desired result are really not reasonable questions to ask on the site. Please post a minimal compilable document showing that you've tried to produce the image and then people will be happy to help you with any specific problems you may have. See minimal working example (MWE) for what needs to go into such a document. – darthbith Nov 2 '14 at 23:47
• What would happen? – cfr Nov 3 '14 at 0:53

Would this be fair for a start... The proposal starts with a couple of style definitions, then place the various nodes cetering the polygon via above left, below right etc, etc., lastly, connect the nodes with lines that also has a style definition.

Code

\documentclass[tikz,border=10pt]{standalone}
\usetikzlibrary{arrows,arrows.meta,shapes.geometric,positioning,calc}

\tikzset{poly7/.style={draw=blue!30,fill=blue!30,minimum size=2cm,regular polygon,regular polygon sides=7,scale=0.5},
rect/.style={draw=blue!20, fill=blue!20,rectangle, minimum height=1cm,rounded corners},
line/.style={draw,solid,line width=2mm,-{Latex[length=4mm]},rounded corners}
}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}

% create the node

\node[poly7] (a) {\color{red} My Text2};
\node[rect, above right=0.3cm and1cm of a] (b) {\color{red} My Text 0};
\node[below left=0.1cm and 1.5cm of a] (c){};
\path[color=blue,line] (b.west) -| node[above right](){\tiny My Text 1} (a.north);
\path[color=green!40!brown,line] (c.west) |- node[above right](){\color{black}\tiny My Text 3} (a.west);
\begin{axis}[scale=0.2,xshift=3cm,yshift=-1cm]
\node(sin) at (axis cs:-1,1){};