
\pgfmathparse{180/pi} \let\radtodeg\pgfmathresult;

%Convex parameters for drawing lines
\pgfmathparse{1} \let\r\pgfmathresult;
\pgfmathparse{0.3} \let\tr\pgfmathresult;
\pgfmathparse{0.5} \let\trr\pgfmathresult;

\pgfmathparse{pi/2-pi/9} \let\Alpha\pgfmathresult;
\pgfmathparse{pi+\Alpha} \let\Beta\pgfmathresult;
\pgfmathparse{1} \let\size\pgfmathresult;

%Translateto the right between images
\coordinate (V) at (2.25,0);


%Define nodes
\coordinate (R1) at (\radtodeg*\Alpha:\size);
\coordinate (R2) at (\radtodeg*\Beta:\size);


\coordinate (R) at ($(R1)!\tr!(R2)$);
\coordinate (RR) at ($(R1)!\trr!(R2)$);

\coordinate (TXT) at (-0.1,-1.75);
\coordinate (VX) at (0.5,-0.0);

\coordinate (VY) at ($(R1)+(VX)$);
\coordinate (A) at ($(R)+(VX)$);
\coordinate (VX) at ($(R2)+(VX)$);


\coordinate (TX) at ($(RR)!0.25!(A)$);
\coordinate (TY) at ($(RR)!2!(A)$);
\coordinate (TS) at ($(RR)!-0.5!(A)$);

\coordinate (B) at ($(RR)!1.75!(A)$);
\coordinate (C) at ($(RR)!1.75!(A)$);
