Edit: I can't delete this question despite it being based on a silly mistake. Please don't waste time reading/answering.
I'm trying to draw a row of boxes which alternate colours, and I'm using a \foreach
to do it. My question is whether it's possible to use colour names as a variable in a foreach
loop.
MWE:
\documentclass{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
\foreach \x/\y {1/blue, 2/red, 3/blue, 4/red}
\fill[color=\y] (\x,0) --++ (1,0) --++ (0,1) --++ (-1,0) --cycle;
\end{tikzpicture}
\end{document}
When I run this I get the error ! Package pgfkeys Error: I do not know the key '/pgf/foreach/color', to which you passed '\y ', and I am going to ignore it. Perhaps you misspelled it.
In other questions I've seen (example 1, example 2, example 3), people have been asking about defining colours with numbers (red!50!black
, for example), so I think this question is different.
So, am I just doing something wrong, or is it simply not possible to do what I'm trying to do. If it's the latter, I'll do it a different way, but I wanted to know about the possibility.