% for use with LaTeX, comment out the following lines
%\font\sevrm=cmr7
%\font\twltt=cmtt12
%\def\mbox=\relax

% constants
\let\pics=2
\let\dottedpics=1
\let\nopics=0

% commands to change picture drawing mode
\newcommand{\nopictures}{\let\picturemode=\nopics}
\newcommand{\dottedpictures}{\let\picturemode=\dottedpics}
\newcommand{\pictures}{\let\picturemode=\pics}

% set default
\pictures
