The second figure, a heart that is assigned the character
code B, uses the PTYPE variable combination V-C-V to draw the arcs that make
up the top of the heart. Each side requires two arcs. Since the arcs are continuous,
the observation that marks the end of one arc is also the beginning of the
next arc. The heart drawing begins at the bottom point and continues counterclockwise.
B W 0 64 0 P /* heart */
B V 32 2 1 P
B V 44 17 1 P
B V 58 40 1 P
B C 46 47 1 P
B V 56 58 1 P
B C 46 47 1 P
B V 32 52 1 P
B C 18 47 1 P
B V 8 58 1 P
B C 18 47 1 P
B V 6 40 1 P
B V 20 17 1 P
B V 32 2 1 P