Tento interpolar essas curvas e o que consigo não é muito legal:
O que eu tentei:
\documentclass[french,25pt,a4paper,landscape]{article}
\usepackage{etex}
\usepackage{tikz}
\usepackage[T1]{fontenc}
\usepackage{xcolor}
\begin{document}
\begin{center}
\definecolor{qqwuqq}{rgb}{0,0.39215686274509803,0}
\definecolor{uuuuuu}{rgb}{0.26666666666666666,0.26666666666666666,0.26666666666666666}
\definecolor{qqqqff}{rgb}{0,0,1}
\begin{tikzpicture}[line cap=round,line join=round,>=stealth,x=1cm,y=1cm]
\coordinate[label=below:$O$] (A) at (0,0);
\coordinate[label=below left:] (B) at (0,4);
\coordinate[label=below left:$t$] (C) at (4,0);
\coordinate[label=above right:] (D) at (0.54,1.04);
\coordinate[label=above right:] (E) at (1.38,1.58);
\coordinate[label=above right:] (F) at (1.9,1.667);
\coordinate[label=above right:] (G) at (2.76,1.767);
\coordinate[label=above right:] (H) at (4.36,1.8);
\coordinate[label=above right:] (I) at (0.3,3.82);
\coordinate[label=above right:] (J) at (0.5,3.5);
\coordinate[label=above right:] (K) at (0.7,2.94);
\coordinate[label=above right:] (L) at (0.84,2.44);
\coordinate[label=above right:] (M) at (1,2);
\coordinate[label=above right:] (N) at (1.24,1.36);
\coordinate[label=above right:] (O) at (1.86,0.86);
\coordinate[label=above right:] (P) at (2.44,0.54);
\coordinate[label=above right:] (Q) at (2.86,0.22);
\coordinate[label=above right:] (R) at (3.42,0.18);
\coordinate[label=above right:] (S) at (0.84,0.38);
\coordinate[label=above right:] (T) at (1.61,1.04);
\coordinate[label=above right:] (U) at (1.92,1.68);
\coordinate[label=above right:] (V) at (2.52,3.04);
\coordinate[label=above right:] (W) at (2.84,4.32);
\draw [->,line width=0.8pt] (A) -- (B) node[midway, below left] {};
\draw [->,line width=0.8pt] (A) -- (C) node[midway, above] {};
\draw [red] plot [smooth, tension=0.6] coordinates { (A) (D) (E) (F) (G) (H)};
\draw [blue, dashed] plot [smooth, tension=0.6] coordinates { (I) (J) (K) (L) (M) (N) (O) (P) (Q) (R)};
\draw [green] plot [smooth, tension=0.6] coordinates { (A) (S) (T) (U) (V) (W)};
\fill (A) circle (2pt);
\fill (B) circle (0pt);
\fill (C) circle (0pt);
\end{tikzpicture}
\end{center}
\end{document}
O resultado :
Como faço para suavizar essas curvas para que pareçam mais reais? E eu também gostaria de adicionar os números circulados
Responder1
Aqui está uma maneira de fazer isso. Chaves:
- removendo código desnecessário do seu exemplo
- substituindo
--porto[out=,in=] - colocando um ponto intermediário para a curva azul
- colocar rótulos no final de cada curva com algumas variantes para deslocá-la
Você também pode usar controlsuma outra abordagem por meio de curvas de Bezier. Acho os efeitos tomais fáceis de visualizar.
Sugiro desenhar seus gráficos em arquivos separados usando class standaloneE incluindo os referidos PDFs via package graphicx. Veja aqui paraum exemplo, enquanto eu sugeri fazer issovárias vezes (saiba mais).
%\documentclass[french,25pt,a4paper,landscape]{article}
%\usepackage{etex}
%
%\usepackage{tikz}
%\usepackage[T1]{fontenc}
%\usepackage{xcolor}
\documentclass[10pt,border=3mm,tikz]{standalone}
\begin{document}
% \begin{center}
% ~~~ you don't use them here ... ~~~~~~~~~~~~~~~~~~~~~
% \definecolor{qqwuqq}{rgb}{0,0.39215686274509803,0}
% \definecolor{uuuuuu}{rgb}{0.26666666666666666,0.26666666666666666,0.26666666666666666}
% \definecolor{qqqqff}{rgb}{0,0,1}
\begin{tikzpicture}[
line cap=round,
line join=round,
>=stealth,
lbl/.style={draw,circle},
% x=1cm,y=1cm
]
\coordinate[label=below:$O$] (A) at (0,0);
\coordinate[label=below left:] (B) at (0,4);
\coordinate[label=below left:$t$] (C) at (4,0);
%
% \coordinate[label=above right:] (D) at (0.54,1.04);
% \coordinate[label=above right:] (E) at (1.38,1.58);
% \coordinate[label=above right:] (F) at (1.9,1.667);
% \coordinate[label=above right:] (G) at (2.76,1.767);
\coordinate[label=above right:] (H) at (4.36,1.8);
%
\coordinate[label=above right:] (I) at (0.3,3.82);
% \coordinate[label=above right:] (J) at (0.5,3.5);
% \coordinate[label=above right:] (K) at (0.7,2.94);
% \coordinate[label=above right:] (L) at (0.84,2.44);
% \coordinate[label=above right:] (M) at (1,2);
% \coordinate[label=above right:] (N) at (1.24,1.36);
% \coordinate[label=above right:] (O) at (1.86,0.86);
% \coordinate[label=above right:] (P) at (2.44,0.54);
% \coordinate[label=above right:] (Q) at (2.86,0.22);
\coordinate[label=above right:] (R) at (3.42,0.18);
%
% \coordinate[label=above right:] (S) at (0.84,0.38);
% \coordinate[label=above right:] (T) at (1.61,1.04);
% \coordinate[label=above right:] (U) at (1.92,1.68);
% \coordinate[label=above right:] (V) at (2.52,3.04);
\coordinate[label=above right:] (W) at (2.84,4.32);
% ~~~ y- and x-axis ~~~~~~~~~~~~~~~~~~~~~~~~~
\draw [->,line width=0.8pt] (A) -- (B) node[midway, below left] {?};
\draw [->,line width=0.8pt] (A) -- (C) node[midway, above] {??};
% ~~~ curves ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
%\draw[red] (A) -- (H); % start like this
\draw[red] (A) to[out=60,in=182] (H) node[lbl,yshift=4mm] {3}; % refined
\draw[teal!80] (A) to[out=20,in=250] (W) node[lbl,shift=(200:7mm)] {1};
\draw[blue,dashed]
(I) to[out=-35,in=110] +(.7,-1.6)
to[out=290,in=180] (R) node[lbl,shift=(120:7mm)] {2};
%\draw [red] plot [smooth, tension=0.6] coordinates { (A) (D) (E) (F) (G) (H)};
%\draw [blue, dashed] plot [smooth, tension=0.6] coordinates { (I) (J) (K) (L) (M) (N) (O) (P) (Q) (R)};
%\draw [green] plot [smooth, tension=0.6] coordinates { (A) (S) (T) (U) (V) (W)};
\fill (A) circle (2pt);
\fill (B) circle (0pt);
\fill (C) circle (0pt);
\end{tikzpicture}
% \end{center}
\end{document}