public void GetLine()
{
// -- Triangle --
XYPolygon xypolygon = new XYPolygon();
xypolygon.Points.Add(new XYPoint(1, 2));
xypolygon.Points.Add(new XYPoint(4, 3));
xypolygon.Points.Add(new XYPoint(2, 5));
Assert.AreEqual(new XYLine(1, 2, 4, 3), xypolygon.GetLine(0));
Assert.AreEqual(new XYLine(4, 3, 2, 5), xypolygon.GetLine(1));
Assert.AreEqual(new XYLine(2, 5, 1, 2), xypolygon.GetLine(2));
// -- concave polygon --
XYPolygon xypolygon4 = new XYPolygon();
xypolygon4.Points.Add(new XYPoint(1, 1));
xypolygon4.Points.Add(new XYPoint(9, 1));
xypolygon4.Points.Add(new XYPoint(5, 5));
xypolygon4.Points.Add(new XYPoint(5, 3));
xypolygon4.Points.Add(new XYPoint(3, 3));
xypolygon4.Points.Add(new XYPoint(3, 8));
xypolygon4.Points.Add(new XYPoint(9, 8));
xypolygon4.Points.Add(new XYPoint(9, 11));
xypolygon4.Points.Add(new XYPoint(1, 11));
Assert.AreEqual(new XYLine(1, 1, 9, 1), xypolygon4.GetLine(0));
Assert.AreEqual(new XYLine(9, 1, 5, 5), xypolygon4.GetLine(1));
Assert.AreEqual(new XYLine(5, 5, 5, 3), xypolygon4.GetLine(2));
Assert.AreEqual(new XYLine(5, 3, 3, 3), xypolygon4.GetLine(3));
Assert.AreEqual(new XYLine(3, 3, 3, 8), xypolygon4.GetLine(4));
Assert.AreEqual(new XYLine(3, 8, 9, 8), xypolygon4.GetLine(5));
Assert.AreEqual(new XYLine(9, 8, 9, 11), xypolygon4.GetLine(6));
Assert.AreEqual(new XYLine(9, 11, 1, 11), xypolygon4.GetLine(7));
Assert.AreEqual(new XYLine(1, 11, 1, 1), xypolygon4.GetLine(8));
}
