Eu gostaria de usar o hobbypacote para traçar curvas suaves desenhadas através de pontos. A função pgfs smoothnão está funcionando corretamente. Meu código é o seguinte,
\documentclass{standalone}
\usepackage{pgfplots}
\usepackage{filecontents}
\pgfplotsset{compat=1.9, every tick label/.append style={font=\normalsize}}
\pgfplotscreateplotcyclelist{my black white}{%
solid,smooth, every mark/.append style={solid, fill=white}, mark=triangle*\\%
solid, every mark/.append style={solid, fill=black}, mark=triangle*\\%
densely dashed, every mark/.append style={solid, fill=white},mark=diamond*\\%
densely dashed, every mark/.append style={solid, fill=black}, mark=diamond*\\%
}
\begin{filecontents}{p2.dat}
SAT ETCY-5 ETCX-5 ETCY-10 ETCX-10 AR-5 AR-10
100 0.46 0.50 0.54 0.61 0.17 0.25
90 0.45 0.48 0.53 0.59 0.18 0.25
80 0.43 0.47 0.51 0.58 0.19 0.27
70 0.41 0.45 0.49 0.57 0.21 0.30
60 0.39 0.44 0.48 0.55 0.25 0.35
50 0.37 0.42 0.46 0.54 0.30 0.44
40 0.35 0.40 0.44 0.52 0.38 0.57
30 0.33 0.37 0.42 0.51 0.50 0.71
20 0.29 0.34 0.39 0.48 0.63 0.87
10 0.24 0.29 0.34 0.45 0.78 1.04
0 0.18 0.23 0.29 0.41 0.92 1.22
\end{filecontents}
\begin{document}
\pgfplotstableread{p2.dat}{\2}
\begin{tikzpicture}
\begin{axis}[
cycle list name=my black white,
title={Compressing Pressure: 0.2 MPa},
enlarge x limits=-1,
xmin=0, xmax=100,
xlabel={Water Saturation($S_w$)},
xtick={0,10,20,30,40,50,60,70,80,90,100},
xticklabels={0,10,20,30,40,50,60,70,80,90,100},
scaled ticks=true,
ymin=0, ymax=0.7,
ylabel={Avg. ETC \quad $\frac{K_{eff}}{K_s}$ $(Dimensionless)$},
legend style ={ at={(0.25,0.4)},
anchor=north west, draw=none, font=\normalsize,
fill=white,align=left},
smooth
]
`
\addplot table [x={SAT}, y={ETCX-5}] {\2};
\addlegendentry{$K_{eff(x)}-Overlap \quad 5\% $};
\addplot table [x={SAT}, y={ETCY-5}] {\2};
\addlegendentry{$K_{eff(y)}-Overlap \quad5\% $};
\addplot table [x={SAT}, y={ETCX-10}] {\2};
\addlegendentry{$K_{eff(x)}-Overlap \quad10\% $};
\addplot table [x={SAT}, y={ETCY-10}] {\2};
\addlegendentry{$K_{eff(y)}-Overlap \quad10\% $};
\end{axis}
\end{tikzpicture}%
\end{document}
A suavidade das curvas não é consistente. Eu queria saber se existe uma maneira de usar o hobbypacote e usar os dados do .datarquivo para produzir curvas suaves. A meu ver, hobbyusa coordenadas absolutas para desenhar e não pontos de dados
Responder1
Conforme mencionado no manual da hobbybiblioteca, ela suporta o uso com arquivos pgfplots. É apenas uma questão de acrescentar algo \usetikzlibrary{hobby}ao preâmbulo e dizer, por exemplo
\addplot +[hobby] {rnd};
Portanto, substitua smoothem seu código por hobbyworks.
Dito isto, eu não faria isso sozinho, quase não há alteração na interpolação linear padrão.
Observe as alterações que fiz nas entradas da legenda e também no ylabel.
\documentclass[border=5mm]{standalone}
\usepackage{pgfplots}
\usetikzlibrary{hobby}
\usepackage{filecontents}
\pgfplotsset{compat=1.9, every tick label/.append style={font=\normalsize}}
\pgfplotscreateplotcyclelist{my black white}{%
solid,smooth, every mark/.append style={solid, fill=white}, mark=triangle*\\%
solid, every mark/.append style={solid, fill=black}, mark=triangle*\\%
densely dashed, every mark/.append style={solid, fill=white},mark=diamond*\\%
densely dashed, every mark/.append style={solid, fill=black}, mark=diamond*\\%
}
\begin{filecontents}{p2.dat}
SAT ETCY-5 ETCX-5 ETCY-10 ETCX-10 AR-5 AR-10
100 0.46 0.50 0.54 0.61 0.17 0.25
90 0.45 0.48 0.53 0.59 0.18 0.25
80 0.43 0.47 0.51 0.58 0.19 0.27
70 0.41 0.45 0.49 0.57 0.21 0.30
60 0.39 0.44 0.48 0.55 0.25 0.35
50 0.37 0.42 0.46 0.54 0.30 0.44
40 0.35 0.40 0.44 0.52 0.38 0.57
30 0.33 0.37 0.42 0.51 0.50 0.71
20 0.29 0.34 0.39 0.48 0.63 0.87
10 0.24 0.29 0.34 0.45 0.78 1.04
0 0.18 0.23 0.29 0.41 0.92 1.22
\end{filecontents}
\begin{document}
\pgfplotstableread{p2.dat}{\2}
\begin{tikzpicture}
\begin{axis}[
cycle list name=my black white,
title={Compressing Pressure: 0.2 MPa},
xmin=0, xmax=100,
xlabel={Water Saturation($S_w$)},
xtick distance=10,
ymin=0, ymax=0.7,
ylabel={Avg. ETC \quad $\frac{K_{\mathrm{eff}}}{K_s}$ (Dimensionless)},
legend style ={ at={(0.25,0.4)},
anchor=north west, draw=none, font=\normalsize,
fill=white,align=left,
cells={anchor=west} %% <-- added
},
hobby
]
\addplot table [x={SAT}, y={ETCX-5}] {\2};
\addlegendentry{$K_{\mathrm{eff}(x)}$ -- Overlap 5\% };
\addplot table [x={SAT}, y={ETCY-5}] {\2};
\addlegendentry{$K_{\mathrm{eff}(y)}$ -- Overlap 5\% };
\addplot table [x={SAT}, y={ETCX-10}] {\2};
\addlegendentry{$K_{\mathrm{eff}(x)}$ -- Overlap 10\% };
\addplot table [x={SAT}, y={ETCY-10}] {\2};
\addlegendentry{$K_{\mathrm{eff}(y)}$ -- Overlap 10\% };
\end{axis}
\end{tikzpicture}%
\end{document}