Shape;
BoundingRectangle(1,1);
// This draws an offpage connector.
// The shape of the object is true if the bounding rectangle is square.

UnityDivisions(18);

pt0.x = left;
pt0.y = top;

pt1.x = left;
pt1.y = midy -2*unity;

pt2.x = midx;
pt2.y = bottom;

pt3.x = right;
pt3.y = midy -2*unity;

pt4.x = right;
pt4.y = top;

pt5.x = left;
pt5.y = top;

Polygon(6);
 