public void testSub()
{
Tutorial_Point res1 = p1.sub(p2);
Tutorial_Point res2 = p1.sub(p3);
Assert.AreEqual(4, res1.x);
Assert.AreEqual(-21, res1.y);
Assert.AreEqual(-3, res2.x);
Assert.AreEqual(12, res2.x);
}
public void setUp()
{
p1 = new Tutorial_Point(2, -3);
p2 = new Tutorial_Point(3, 7);
l1 = new Line(p1, p2);
p3 = new Tutorial_Point(7, 2);
p4 = new Tutorial_Point(8, 12);
l2 = new Line(p3, p4);
}
public Quadrilateral(Tutorial_Point p1, Tutorial_Point p2, Tutorial_Point p3, Tutorial_Point p4)
{
this.p1 = p1;
this.p2 = p2;
this.p3 = p3;
this.p4 = p4;
this.l1 = new Line(p1, p2);
this.l2 = new Line(p2, p3);
this.l3 = new Line(p3, p4);
this.l4 = new Line(p4, p1);
}
public void setUp()
{
p1 = new Tutorial_Point(7, 9);
p2 = new Tutorial_Point(-3, -30);
p3 = new Tutorial_Point(-10, 3);
}
/* Construct Vector2D from two points */
public Vector2D(Tutorial_Point p1, Tutorial_Point p2)
{
this.x = p2.x - p1.x;
this.y = p2.y - p1.y;
}
public Tutorial_Point sub(Tutorial_Point p)
{
return(new Tutorial_Point(x - p.x, y - p.y));
}
public Tutorial_Point add(Tutorial_Point p)
{
return(new Tutorial_Point(x + p.x, y + p.y));
}
public Line(Tutorial_Point p1, Tutorial_Point p2)
{
this.p1 = p1;
this.p2 = p2;
}
