[OS X TeX] ifthen
Nitecki, Zbigniew H.
Zbigniew.Nitecki at tufts.edu
Tue Jun 14 22:10:25 CEST 2016
I am trying to set up an association between certain numbers (positions in a braid diagram) and colors.
The macro
\newcommand{\strandcolor}[1]{\ifthenelse{\equal{#1}{1}}{orange}
{\ifthenelse{\equal{#1}{2}}{black}
{\ifthenelse{\equal{#1}{3}}{red}
{\ifthenelse{\equal{#1}{4}}{purple}
{\ifthenelse{\equal{#1}{5}}{green}{}
}
}
}
}
}
Seems to work fine: if I follow it with a multi do statement it prints out the names of the colors in order.
However, when I try to use it in the following macro
\newcommand{\colornode}[5]{\rput*(#4,#5){\circlenode[linecolor=white]{V#1#2}{\textcolor{\strandcolor{#3}}{$\boldsymbol{\scriptsize{#3}}$}}}}
I get the error message that \equal is an undefined control sequence. Is there something about expanding or protecting macros that I am missing, or what other stupid mistake have I made. Attached is the pared-down total source code and log of the (unfinished) run..
Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155
telephones:
Office (617)627-3843
Dept. (617)627-3234
Dept. fax (617)627-3966
http://www.tufts.edu/~znitecki/
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