diagram-doodles.tex

\newcommand{\skyline}[1]{
    \foreach [count=\col] \val in {#1} {
        \foreach \y in {1,...,\val} {
            \draw[thick, line cap = round] (\col, \y) rectangle ++(1,1);
        }
    }
}

\newcommand{\skylinelabeled}[1]{
    \foreach [count=\col] \val in {#1} {
        \foreach \y in {1,...,\val} {
            \draw[thick, line cap = round] (\col, \y) rectangle ++(1,1);
        }
        \node at ({\col+0.5}, 0) {$\val$};
    }
}

\newcommand{\skylinefilled}[1]{
    \foreach [count=\col] \val in {#1} {
        \ifthenelse{\equal{\val}{0}}{}{
            \foreach \y in {1,...,\val} {
                \draw[fill=gray!50, thick, line cap = round] (\col, \y) rectangle ++(1,1);
            }
        }
    }
}
\newcommand{\skylinefilledunderlines}[1]{
    \foreach [count=\col] \val in {#1} {
        \ifthenelse{\equal{\val}{0}}{}{
            \foreach \y in {1,...,\val} {
                \draw[fill=gray!50, thick, line cap = round] (\col, \y) rectangle ++(1,1);
            }
            \draw[shorten <= 2pt, shorten >= 2pt] (\col, -0.55) -- ++(1,0);
        }
    }
}

\newcommand{\ferrers}[1]{
    \foreach [count=\row] \val in {#1} {
        \foreach \x in {1,...,\val} {
            \draw[thick, line cap = round] (\x, -\row) rectangle ++(1,1);
        }
    }
}

\newcommand{\ferrersfilled}[1]{
    \foreach [count=\row] \val in {#1} {
        \foreach \x in {1,...,\val} {
            \draw[fill=gray!50, thick, line cap = round] (\x, -\row) rectangle ++(1,1);
        }
    }
}