V10/cmd/dag/daglib.pic

define Box	% [box wid $2 ht $3 $1] %
define Square	% [box wid $2 ht $2 $1] %
define Circle	% [circle rad $2/2; $1 at last circle.c] %
define Ellipse	% [ellipse wid $2 ht $3 $1] %
define Diamond	% [move down $3/2; line up $3/2 right $2/2 then up $3/2 left $2/2 then down $3/2 left $2/2 then down $3/2 right $2/2; move up $3/2; $1;] %
define Doublecircle % [circle rad $2/2; circle rad .9*$2/2 at last circle.c; $1 at last circle.c] %
define Plaintext % [box invis wid $2 ht $3 $1] %