Demonstration of how to draw a speech balloon tail, based on advice in http://stackoverflow.com/a/16782469/30461 .

balloon-tail.ps

%!PS-Adobe-3.0 EPSF-3.0 
%%BoundingBox: 0 0 120 260

/pt1 { 20 100 } def
/pt2 { 60 80 } def
/pt5 { 100 60 } def
/pt3 { 20 20 } def
/pt4 { 60 40 } def
/yoffset { 30 add } def

/labelpts {
	/Helvetica 5 selectfont
	pt1 moveto (1) show
	pt2 yoffset moveto (2) show
	pt3 moveto (3) show
	pt4 yoffset moveto (4) show
	pt5 moveto (5) show
} def

gsave
% CoDEFRo's code: http://stackoverflow.com/q/16763695/30461
0 120 translate

labelpts
pt1 moveto
pt1 pt2 yoffset pt5 curveto
pt3 pt4 yoffset pt5 curveto
closepath
stroke

grestore

labelpts
pt1 moveto
pt2 yoffset pt5 pt5 curveto
pt4 yoffset pt3 pt3 curveto
%closepath
stroke

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