Consegui fazer o código abaixo, mas ainda não é o que preciso.
Preciso dos pontos a1 a a5 para formar uma linha reta até o ponto “Gol”.
Como faço isso?
Os arquivos .dat têm esta aparência (inimigo.dat):
52 10 a0
3 41 a1
51 52 a2
22 62 a3
36 32 a4
pontofixo.dat
115 45 Goal
gbest.data
66.6357 27.6357 g0
48.2417 38.2417 g1
53.5413 63.5413 g2
57.8469 18.8469 g3
75.6483 40.2518 g4
inicial.dat
65 26 i0
47 37 i1
6 16 i2
44 5 i3
58 6 i4
Tomando essas coordenadas, como fazer uma reta do ponto a0 até o ponto “Gol”?
\documentclass[varwidth]{standalone}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\usepackage{geometry}
\geometry{
paperwidth=25cm,
left=1in,right=1in,top=1in,bottom=1in
}
\begin{document}
\begin{figure}[h]
\centering
\begin{subfigure}{.4\textwidth}
\centering
\begin{tikzpicture}
\begin{axis}[xmin=0,xmax=120,ymin=0,ymax=90, xstep=1,ystep=1,nodes near coords,enlargelimits=0.0]
\addplot +[only marks,mark=*,nodes near coords={\labelz}, visualization depends on={value \thisrowno{2}\as\labelz}]
table[header=false]{pontofixo.dat};
\addplot +[only marks,mark=*,nodes near coords={\labelz}, visualization depends on={value \thisrowno{2}\as\labelz}]
table[header=false]{inimigo.dat};
\addplot +[only marks,mark=*,nodes near coords={\labelz},visualization depends on={value \thisrowno{2}\as\labelz}]
table[header=false]{inicial.dat};
\end{axis}
\end{tikzpicture}
\caption{Estado inicial}
\end{subfigure}%
\centering
\begin{subfigure}{.4\textwidth}
\centering
\begin{tikzpicture}
\begin{axis}[xmin=0,xmax=120,ymin=0,ymax=90, xstep=1,ystep=1,nodes near coords,enlargelimits=0.0]
\addplot +[only marks,mark=*,nodes near coords={\labelz}, visualization depends on={value \thisrowno{2}\as\labelz}]
table[header=false]{pontofixo.dat};
\addplot +[only marks,mark=*,nodes near coords={\labelz}, visualization depends on={value \thisrowno{2}\as\labelz}]
table[header=false]{inimigo.dat};
\addplot +[only marks,mark=*,nodes near coords={\labelz}, visualization depends on={value \thisrowno{2}\as\labelz}]
table[header=false]{gbest.dat};
\end{axis}
\end{tikzpicture}
\caption{Estado final}
\end{subfigure}%
\end{figure}
\end{document}
Responder1
REVISÃO COMPLETA: Algum tempo depois de responder a esta pergunta, me depareiesse truque legal, o que permite atingir o objetivo de uma forma muito mais elegante. Depois que fui lembrado do meu código original emessa questão, senti que precisava atualizar esta resposta para
\documentclass[varwidth]{standalone}
\usepackage{filecontents}
\begin{filecontents*}{inimigo.dat}
x y label
52 10 a0
3 41 a1
51 52 a2
22 62 a3
36 32 a4
\end{filecontents*}
\begin{filecontents*}{pontofixo.dat}
x y label
115 45 Goal
\end{filecontents*}
\begin{filecontents*}{inicial.dat}
x y label
65 26 i0
47 37 i1
6 16 i2
44 5 i3
58 6 i4
\end{filecontents*}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\usepackage{geometry}
\geometry{
paperwidth=25cm,
left=1in,right=1in,top=1in,bottom=1in
}
\pgfplotsset{% https://tex.stackexchange.com/a/75811/121799
name nodes near coords/.style={
every node near coord/.append style={
name=#1-\coordindex,
alias=#1-last,
},
},
name nodes near coords/.default=coordnode
}
\begin{document}
\begin{figure}[h]
\centering
\begin{subfigure}{.4\textwidth}
\centering
\begin{tikzpicture}
\begin{axis}[xmin=0,xmax=120,ymin=0,ymax=90, xstep=1,ystep=1,nodes near coords,enlargelimits=0.0]
\addplot +[only marks,mark=*,nodes near
coords={\labelz},
visualization depends on={value \thisrowno{2}\as\labelz},
name nodes near coords=Gol]
table{pontofixo.dat}; % this defines the coordinate (Goal)
% if I do not define it, the next sequence will throw an error
\addplot +[scatter/position=relative,only marks,mark=*,
nodes near coords={\labelz},
visualization depends on={value \thisrowno{2}\as\labelz},
name nodes near coords=a]
table{inimigo.dat};
\addplot +[scatter/position=relative,only marks,mark=*,
nodes near coords={\labelz},
visualization depends on={value \thisrowno{2}\as\labelz},
name nodes near coords=i]
table{inicial.dat};
\end{axis}
\foreach \n in {0,...,4}
{
\draw[black,thick,dashed] (a-\n.south) -- (Gol-0.south);
\draw[black,thick,dashed] (i-\n.south) -- (Gol-0.south);
}
\end{tikzpicture}
\caption{Estado inicial}
\end{subfigure}%
\centering
\begin{subfigure}{.4\textwidth}
\centering
\begin{tikzpicture}
\begin{axis}[xmin=0,xmax=120,ymin=0,ymax=90, xstep=1,ystep=1,nodes near coords,enlargelimits=0.0]
\addplot +[only marks,mark=*,nodes near
coords={\labelz},
visualization depends on={value \thisrowno{2}\as\labelz},
name nodes near coords=Gol]
table{pontofixo.dat}; % this defines the coordinate (Goal)
% if I do not define it, the next sequence will throw an error
\addplot +[scatter/position=relative,only marks,mark=*,
nodes near coords={\labelz},
visualization depends on={value \thisrowno{2}\as\labelz},
name nodes near coords=a]
table{inimigo.dat};
\addplot +[scatter/position=relative,only marks,mark=*,
nodes near coords={\labelz},
visualization depends on={value \thisrowno{2}\as\labelz},
name nodes near coords=g]
table{gbest.dat};
\end{axis}
\foreach \n in {0,...,4}
{
\draw[black,thick,dashed] (a-\n.south) -- (Gol-0.south);
\draw[black,thick,dashed] (g-\n.south) -- (Gol-0.south);
}
\end{tikzpicture}
\caption{Estado final}
\end{subfigure}%
\end{figure}
\end{document}
VELHO: Aqui está minha solução original.
\documentclass[varwidth]{standalone}
\usepackage{filecontents}
\begin{filecontents*}{inimigo.dat}
x y label
52 10 a0
3 41 a1
51 52 a2
22 62 a3
36 32 a4
\end{filecontents*}
\begin{filecontents*}{pontofixo.dat}
x y label
115 45 Goal
\end{filecontents*}
\begin{filecontents*}{inicial.dat}
x y label
65 26 i0
47 37 i1
6 16 i2
44 5 i3
58 6 i4
\end{filecontents*}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\usepackage{geometry}
\geometry{
paperwidth=25cm,
left=1in,right=1in,top=1in,bottom=1in
}
\begin{document}
\begin{figure}[h]
\centering
\begin{subfigure}{.4\textwidth}
\centering
\begin{tikzpicture}
\begin{axis}[xmin=0,xmax=120,ymin=0,ymax=90, xstep=1,ystep=1,nodes near coords,enlargelimits=0.0]
\xdef\DoLater{}
\addplot +[only marks,mark=*,nodes near
coords={\makebox[0pt]{\coordinate(\labelz) at (\myx,\myy);}\labelz},
visualization depends on={value \thisrowno{2}\as\labelz},
visualization depends on={value \thisrow{x}\as\myx},
visualization depends on={value \thisrow{y}\as\myy}]
table{pontofixo.dat}; % this defines the coordinate (Goal)
% if I do not define it, the next sequence will throw an error
\addplot +[scatter/position=relative,only marks,mark=*,
nodes near coords={\labelz\makebox[0pt]{\coordinate(\labelz) at
(\myx,\myy);
\xdef\DoLater{\DoLater,\labelz}
}}, visualization depends on={value \thisrowno{2}\as\labelz},
visualization depends on={value \thisrow{x}\as\myx},
visualization depends on={value \thisrow{y}\as\myy}]
table{inimigo.dat};
\addplot +[scatter/position=relative,only marks,mark=*,
nodes near coords={\labelz\makebox[0pt]{\coordinate(\labelz) at
(\myx,\myy);
\xdef\DoLater{\DoLater,\labelz}
}}, visualization depends on={value \thisrowno{2}\as\labelz},
visualization depends on={value \thisrow{x}\as\myx},
visualization depends on={value \thisrow{y}\as\myy}]
table{inicial.dat};
\end{axis}
\foreach \Point in \DoLater{
\ifx\Point\empty%
\relax
\else
\draw (\Point) -- (Goal);
\fi
}
\end{tikzpicture}
\caption{Estado inicial}
\end{subfigure}%
\centering
\begin{subfigure}{.4\textwidth}
\centering
\begin{tikzpicture}
\begin{axis}[xmin=0,xmax=120,ymin=0,ymax=90, xstep=1,ystep=1,nodes near coords,enlargelimits=0.0]
\xdef\DoLater{}
\addplot +[only marks,mark=*,nodes near
coords={\makebox[0pt]{\coordinate(\labelz) at (\myx,\myy);}\labelz},
visualization depends on={value \thisrowno{2}\as\labelz},
visualization depends on={value \thisrow{x}\as\myx},
visualization depends on={value \thisrow{y}\as\myy}]
table{pontofixo.dat}; % this defines the coordinate (Goal)
% if I do not define it, the next sequence will throw an error
\addplot +[scatter/position=relative,only marks,mark=*,
nodes near coords={\labelz\makebox[0pt]{\coordinate(\labelz) at
(\myx,\myy);
\xdef\DoLater{\DoLater,\labelz}
}}, visualization depends on={value \thisrowno{2}\as\labelz},
visualization depends on={value \thisrow{x}\as\myx},
visualization depends on={value \thisrow{y}\as\myy}]
table{inimigo.dat};
\addplot +[scatter/position=relative,only marks,mark=*,
nodes near coords={\labelz\makebox[0pt]{\coordinate(\labelz) at
(\myx,\myy);
\xdef\DoLater{\DoLater,\labelz}
}}, visualization depends on={value \thisrowno{2}\as\labelz},
visualization depends on={value \thisrow{x}\as\myx},
visualization depends on={value \thisrow{y}\as\myy}]
table{gbest.dat};
\end{axis}
\foreach \Point in \DoLater{
\ifx\Point\empty%
\relax
\else
\draw (\Point) -- (Goal);
\fi
}
\end{tikzpicture}
\caption{Estado final}
\end{subfigure}%
\end{figure}
\end{document}
Explicação: Enquanto as tabelas são analisadas, são definidas coordenadas que possuem o rótulo ... tenho um palpite ... label
e as coordenadas também são armazenadas em uma lista \DoLater
. Esta lista é analisadaforao axis
meio ambiente (por causa doproblema de expansão atrasada) e então as conexões são desenhadas. (Observe que esta versão depende de os rótulos de coordenadas serem únicos, mas é simples adicionar algo parecido \coordindex
ao rótulo para torná-los únicos em aplicações futuras deste truque.)
Responder2
A idéia principal desta solução é fornecer a nodes near coords
para name
que posteriormente possam ser usados/referenciados para desenhar as linhas de conexão. Depois de feito isso só precisa ser conhecido
- quantos
\addplot
s foram plotados e - quantas coordenadas existem em cada um
\addplot
.
Com esse conhecimento é fácil traçar os limites do “Objetivo”.
(Apresento apenas a solução para o primeiro gráfico, que pode então ser facilmente adotada para o segundo gráfico.)
Para obter detalhes, dê uma olhada nos comentários no código.
% used PGFPlots v1.15
\begin{filecontents*}{pontofixo.dat}
x y label
115 45 Goal
\end{filecontents*}
\begin{filecontents*}{inimigo.dat}
x y label
52 10 a0
3 41 a1
51 52 a2
22 62 a3
36 32 a4
\end{filecontents*}
\begin{filecontents*}{inicial.dat}
x y label
65 26 i0
47 37 i1
6 16 i2
44 5 i3
58 6 i4
\end{filecontents*}
\documentclass[border=5pt]{standalone}
\usepackage{pgfplotstable}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
xmin=0,
xmax=120,
ymin=0,
ymax=90,
enlargelimits=false,
% moved common options here
only marks,
nodes near coords={\labelz},
% give any "node near coord" a name
nodes near coords style={
name=a\plotnum-\coordindex,
},
visualization depends on={
value \thisrowno{2}\as\labelz
},
% create a cycle list so there is no need for `\addplot' options
cycle multiindex* list={
color\nextlist
mark=*\nextlist
},
]
\addplot table {pontofixo.dat};
\addplot table {inimigo.dat};
\addplot table {inicial.dat};
% store the number of plots which will be needed outside the
% `axis' environment
\pgfmathtruncatemacro{\NumPlots}{\numplots}
\end{axis}
% now draw the lines
\foreach \tab [count=\plotnumber from 1] in {
inimigo.dat,
inicial.dat%
} {
% get the number of rows per table so we know how many lines need to
% be drawn per table
\pgfplotstablegetrowsof{\tab}
\pgfmathtruncatemacro{\NoOfRows}{\pgfplotsretval-1}
\foreach \i in {0,...,\NoOfRows} {
\draw (a\plotnumber-\i.south) -- (a0-0.south);
}
}
\end{tikzpicture}
\end{document}