public final void addTriangle ( double x1 , double y1 , double x2 , double y2 , double x3 , double y3 ) { addEdge ( x1 , y1 , x2 , y2 ) ; addEdge ( x2 , y2 , x3 , y3 ) ; addEdge ( x1 , y1 , x3 , y3 ) ; }
Adds edges of a triangle .