public void ifLinesAreParallelAndInterSectThenReturnsIntersection()
{
Line a = new Line(new Point(0, 0), new Point(1, 1));
Line b = new Line(new Point(-1, -1), new Point(0, 0));
Assert.AreEqual(0, a.crosses(b, 0.01).X, "the crossing point x is correct");
Assert.AreEqual(0, a.crosses(b, 0.01).Y, "the crossing point y is correct");
}
public void ifLinesAreParallelAndDoNotInterSectThenReturnsNull()
{
Line a = new Line(new Point(0, 0), new Point(1, 1));
Line b = new Line(new Point(-2, -2), new Point(-1, -1));
Assert.AreEqual(null, a.crosses(b, 0.01), "the crossing point is correctely null");
}
public void ifLinesCrossThenReturnsCrossingPt()
{
Line a = new Line(new Point(0, 0), new Point(2, 2));
Line b = new Line(new Point(0, 2), new Point(2, 0));
Assert.AreEqual(new Point(1, 1), a.crosses(b, 0.01), "the crossing point is correctely the intersection point");
a = new Line(new Point(1, 0), new Point(1, 2));
b = new Line(new Point(0, 0), new Point(2, 2));
Assert.AreEqual(new Point(1, 1), a.crosses(b, 0.01), "the crossing point is correctely the intersection point for vertical line");
}
private void processPath(string path, string transformationData, int officeNumber)
{
string[] coordinates = path.Split(' ');
if (coordinates.Length > 1)
{
Point current_pt = new Point(getCoordinateFromString(coordinates[0]), getCoordinateFromString(coordinates[1]));
transform(transformationData, current_pt);
for (int i = 2; i < coordinates.Length - 1; i += 2)
{
Point end_pt = new Point(getCoordinateFromString(coordinates[i]), getCoordinateFromString(coordinates[i + 1]));
transform(transformationData, end_pt);
if (!startNewLine(coordinates[i]))
{
Line curr_line = new Line(current_pt, end_pt, officeNumber);
for (int j = 0; j < lines.Count; j++)
{
Point crossing_pt = curr_line.crosses(lines[j], epsilon);
if (!string.IsNullOrEmpty(Convert.ToString(crossing_pt)))
{
Node new_node = new Node();
new_node.CrossingPoint = crossing_pt;
if (curr_line.getOfficeNumber() != -1)
{
new_node.OfficeLocation = curr_line.getOfficeNumber();
}
else if (lines[j].getOfficeNumber() != -1)
{
new_node.OfficeLocation = lines[j].getOfficeNumber();
}
graph.addNode(new_node);
}
}
lines.Add(curr_line);
}
current_pt = end_pt;
}
}
}