70 lines
2.2 KiB
TeX
70 lines
2.2 KiB
TeX
% Author: Prof. Dr. Matthias Jung, DL9MJ
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% Year: 2026
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\begin{tikzpicture}
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\pgfplotsset{
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compat=1.10,
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width=\getDarcImageFactor * 16cm,
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standard/.style={
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axis x line=middle,
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axis y line=left,
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ticklabel style={fill=white},
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set layers=tick labels on top% use layers and choose the new layer set
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},
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layers/tick labels on top/.define layer set=% define the new layer set based on the standard one
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{axis background,axis grid,axis ticks,axis lines,main,%
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axis tick labels,% <- tick labels before main
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axis descriptions,axis foreground}
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{/pgfplots/layers/standard},
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clip=false
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}
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\begin{polaraxis}[
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/pgf/number format/.cd,
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use comma,
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domain=-180:180,
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ymin=-0.2,
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ymax=1.05,
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xmin=-45,
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xmax=45,
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grid=none,
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axis line style={draw=none},
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ticks=none,
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ytick={0.3,0.4,0.5,0.6,0.7,0.8,0.9,1},
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yticklabels={,,},
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xtick={-40,-30,-20,-10,0,10,20,30,40},
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xticklabels={}
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]
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\draw[very thick, DARCblue] plot[
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variable=\t,
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domain=0:360,
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smooth,samples=101
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]
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({40*sin(\t)}:{129*pow(0.95*sin(\t/2),5)});
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\draw[very thick, DARCblue] plot[
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variable=\t,
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domain=0:360,
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smooth,samples=101
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]
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({180+40*sin(\t)}:{12*pow(sin(\t/2),9)});
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\draw[anchor=base] (0,0) node[](origin){};
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\path(0:0) -- ++(-40:100) coordinate (E1);
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\path(0:0) -- ++(0:110) coordinate (F1);
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\path(0:0) -- ++(180:30) coordinate (G1);
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\end{polaraxis}
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\draw[very thick]
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(origin) ++(0,0) -- +(1.5,0)
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(origin) ++(0,-0.8) -- +(0, 1.6)
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(origin) ++(0.3,-0.7) -- +(0.0, 1.4)
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(origin) ++(0.6,-.6) -- +(0.0, 1.2)
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(origin) ++(0.9,-.5) -- +(0.0, 1)
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(origin) ++(1.2,-.4) -- +(0.0, 0.8)
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(origin) ++(1.5,-.3) -- +(0.0, 0.6);
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\draw[very thick] (origin) ++(0.15,0) coordinate(E2) -- (E2|-E1) coordinate (E3);
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\draw[very thick] (E3) -- (E3-|F1) coordinate (F2);
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\draw[very thick] (E3) -- (E3-|G1) coordinate (G2);
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\end{tikzpicture} |