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Trace uma grade quadrada com um subconjunto de quadrados marcados usando pgfplots

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Trace uma grade quadrada com um subconjunto de quadrados marcados usando pgfplots

Recentemente descobri o pgfplots e estou impressionado com os recursos deste pacote. No entanto, existe um tipo de gráfico que não consigo descobrir como definir convenientemente usando pgfplots.

Basicamente, eu gostaria de traçar uma grade quadrada com um subconjunto de quadrados marcados (desculpe, como novo usuário não tenho permissão para postar imagens). Estou ciente de que posso seguir/modificar o exemplo do manual em que uma forma fechada é desenhada:

% Preamble: \pgfplotsset{width=7cm,compat=1.6}
\begin{tikzpicture}
\begin{axis}
\addplot+[fill] coordinates
{(0,1) (1,2) (0,3) (-1,2)} --cycle;
\end{axis}
\end{tikzpicture}

Mas estou me perguntando - é possível definir tal enredo passando apenas pelocoordenadas inteiras de quadradosmarcar, em vez de listas de quatro cantos precisos de cada quadrado?

Responder1

Eu não tinha certeza se você queria pilhas ou lajes, então aqui estão as duas:

\documentclass[parskip]{scrartcl}
\usepackage[margin=15mm]{geometry}
\usepackage{tikz}
\usepackage{arrayjobx}
\usepackage{trimspaces}
\usepackage{xifthen}

\makeatletter
\def\trimspace#1{\trim@spaces@in{#1}}
\makeatother

\newcommand{\getslab}[2]{\checkdrawsquares(#1,#2)\trimspace\cachedata}

\newcommand{\drawstacks}[3]% fillheights, baroptions, gridoptions
{   \draw[#3] (0,0) grid (\gridwidth,\gridheight);
    \foreach \x [count=\c] in {#1}
    {   \fill[#2] (\c-1,0) rectangle (\c,\x);
    }
}

\newcommand{\drawslabs}[3]% dataarray, slaboptions, gridoptions
{   \draw[#3] (0,0) grid (\gridwidth,\gridheight);
    \foreach \x in {1,...,\gridwidth}
    { \foreach \y in {1,...,\gridheight}
        {   \pgfmathtruncatemacro{\colnum}{\x}
            \pgfmathtruncatemacro{\rownum}{\gridheight+1-\y}
            \getslab{\rownum}{\colnum}
            \ifthenelse{\cachedata>0}
                {\fill[#2] (\x-1,\y-1) rectangle (\x,\y);}
                {}
        }
    }
}

\begin{document}

\pgfmathtruncatemacro{\gridwidth}{13}
\pgfmathtruncatemacro{\gridheight}{7}

\newarray\drawsquares
\readarray{drawsquares}{%
1 & 1 & 1 & 1 & 0 & 1 & 0 & 0 & 1 & 0 & 1 & 1 & 1 &%
0 & 0 & 1 & 1 & 1 & 1 & 0 & 1 & 0 & 1 & 1 & 0 & 0 &%
1 & 0 & 0 & 0 & 0 & 1 & 0 & 0 & 1 & 1 & 1 & 0 & 1 &%
1 & 1 & 1 & 0 & 1 & 0 & 0 & 1 & 0 & 1 & 0 & 1 & 0 &%
1 & 0 & 0 & 0 & 0 & 0 & 1 & 0 & 1 & 0 & 1 & 0 & 1 &%
1 & 1 & 1 & 0 & 1 & 1 & 0 & 0 & 1 & 0 & 0 & 1 & 0 &%
0 & 1 & 0 & 1 & 0 & 1 & 0 & 1 & 0 & 0 & 1 & 1 & 1}
\dataheight=\gridwidth%

\begin{tikzpicture}
    \drawstacks{1,7,5,0,3,0,0,2,3,4,6,4,7}{red!50!gray,fill opacity=0.5,draw=red!50!gray,thick}{gray,densely dashed}
\end{tikzpicture}

\begin{tikzpicture}
    \drawslabs{drawsquares}{red!50!gray,fill opacity=0.5,draw=red!50!gray,thick}{gray,densely dashed}{red}{gray}
\end{tikzpicture}

\end{document}

insira a descrição da imagem aqui

Editar 1:Eu consegui, só esqueci o \expandafterantes \csnamede ontem.

Atualizada\getslab

\newcommand{\getslab}[3]{\expandafter\csname check#1\endcsname(#2,#3)\trimspace\cachedata}

Atualizada\drawslabs

\newcommand{\drawslabs}[3]% arraname, slaboptions, gridoptions
{   \draw[#3] (0,0) grid (\gridwidth,\gridheight);
    \foreach \x in {1,...,\gridwidth}
    { \foreach \y in {1,...,\gridheight}
        {   \pgfmathtruncatemacro{\colnum}{\x}
            \pgfmathtruncatemacro{\rownum}{\gridheight+1-\y}
            \getslab{#1}{\rownum}{\colnum}
            \ifthenelse{\cachedata>0}
                {\fill[#2] (\x-1,\y-1) rectangle (\x,\y);}
                {}
        }
    }
}

Nova entrada de amostra

\pgfmathtruncatemacro{\gridwidth}{13}
\pgfmathtruncatemacro{\gridheight}{7}

\newarray\drawsquares
\readarray{drawsquares}{%
1 & 1 & 1 & 1 & 0 & 1 & 0 & 0 & 1 & 0 & 1 & 1 & 1 &%
0 & 0 & 1 & 1 & 1 & 1 & 0 & 1 & 0 & 1 & 1 & 0 & 0 &%
1 & 0 & 0 & 0 & 0 & 1 & 0 & 0 & 1 & 1 & 1 & 0 & 1 &%
1 & 1 & 1 & 0 & 1 & 0 & 0 & 1 & 0 & 1 & 0 & 1 & 0 &%
1 & 0 & 0 & 0 & 0 & 0 & 1 & 0 & 1 & 0 & 1 & 0 & 1 &%
1 & 1 & 1 & 0 & 1 & 1 & 0 & 0 & 1 & 0 & 0 & 1 & 0 &%
0 & 1 & 0 & 1 & 0 & 1 & 0 & 1 & 0 & 0 & 1 & 1 & 1}
\dataheight=\gridwidth%

\begin{tikzpicture}
    \drawstacks{1,7,5,0,3,0,0,2,3,4,6,4,7}{red!50!gray,fill opacity=0.5,draw=red!50!gray,thick}{gray,densely dashed}
\end{tikzpicture}

\begin{tikzpicture}
    \drawslabs{drawsquares}{red!50!gray,fill opacity=0.5,draw=red!50!gray,thick}{gray,densely dashed}{red}{gray}
\end{tikzpicture}

\delarray\drawsquares% Deleting the old array; don't reuse names of deleted arrays!

% define a "new array" by just interchanging width and height

\pgfmathtruncatemacro{\gridwidth}{7}% changed from 13 to 7
\pgfmathtruncatemacro{\gridheight}{13}% changed from 7 to 13

\newarray\verticalarray% new name
\readarray{verticalarray}{%
1 & 1 & 1 & 1 & 0 & 1 & 0 & 0 & 1 & 0 & 1 & 1 & 1 &%
0 & 0 & 1 & 1 & 1 & 1 & 0 & 1 & 0 & 1 & 1 & 0 & 0 &%
1 & 0 & 0 & 0 & 0 & 1 & 0 & 0 & 1 & 1 & 1 & 0 & 1 &%
1 & 1 & 1 & 0 & 1 & 0 & 0 & 1 & 0 & 1 & 0 & 1 & 0 &%
1 & 0 & 0 & 0 & 0 & 0 & 1 & 0 & 1 & 0 & 1 & 0 & 1 &%
1 & 1 & 1 & 0 & 1 & 1 & 0 & 0 & 1 & 0 & 0 & 1 & 0 &%
0 & 1 & 0 & 1 & 0 & 1 & 0 & 1 & 0 & 0 & 1 & 1 & 1}
\dataheight=\gridwidth% similar array as before, but this time interpreted as 7x13 instead of 13x7

\begin{tikzpicture}
    \drawslabs{verticalarray}{red!50!gray,fill opacity=0.5,draw=red!50!gray,thick}{gray,densely dashed}{red}{gray}
\end{tikzpicture}

Nova saída de amostra (com geometryopção a3paper)

insira a descrição da imagem aqui

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