25 lines
641 B
Plaintext
25 lines
641 B
Plaintext
|
% light gray color
|
||
|
|
\definecolor{lightgray}{gray}{0.7}
|
||
|
|
|
||
|
|
% a grid with starting from #1 mesh #2 of width #3*#2 and height #4*#2
|
||
|
|
\def\grid#1#2#3#4{
|
||
|
|
% vertical lines
|
||
|
|
\foreach\i in{0,...,#3}{
|
||
|
|
\draw[color=lightgray]#1++(\i*#2,0)--++(0,#4*#2);
|
||
|
|
}
|
||
|
|
% horizontal lines
|
||
|
|
\foreach\j in{0,...,#4}{
|
||
|
|
\draw[color=lightgray]#1++(0,\j*#2)--++(#3*#2,0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
% a square centered at #1 of side #2
|
||
|
|
\def\square#1#2{
|
||
|
|
\draw#1++(-0.5*#2,-0.5*#2)--++(#2,0)--++(0,#2)--++(-#2,0)--cycle;
|
||
|
|
}
|
||
|
|
|
||
|
|
% fill a square centered at #1 of side #2 and color #3
|
||
|
|
\def\fillsquare#1#2#3{
|
||
|
|
\fill[color=#3]#1++(-0.5*#2,-0.5*#2)--++(#2,0)--++(0,#2)--++(-#2,0)--cycle;
|
||
|
|
}
|