public void Line_DoesIntersectPolyhedron()
{
//make a polyhedron
Point bottom1 = Point.Origin;
Point bottom2 = Point.MakePointWithInches(4, 0, 0);
Point bottom3 = Point.MakePointWithInches(4, 12, 0);
Point bottom4 = Point.MakePointWithInches(0, 12, 0);
Point top1 = Point.MakePointWithInches(0, 0, 2);
Point top2 = Point.MakePointWithInches(4, 0, 2);
Point top3 = Point.MakePointWithInches(4, 12, 2);
Point top4 = Point.MakePointWithInches(0, 12, 2);
List<Polygon> faces = new List<Polygon>();
Polygon bottomFace = new Polygon(new List<Point> {bottom1, bottom2, bottom3, bottom4});
Polygon topFace = new Polygon(new List<Point> { top1, top2, top3, top4 });
Polygon frontFace = new Polygon(new List<Point> { bottom1, bottom2, top2, top1 });
Polygon rightFace = new Polygon(new List<Point> { bottom2, bottom3, top3, top2 });
Polygon backFace = new Polygon(new List<Point> { bottom3, bottom4, top4, top3 });
Polygon leftFace = new Polygon(new List<Point> { bottom4, bottom1, top1, top4 });
faces.Add(bottomFace);
faces.Add(topFace);
faces.Add(frontFace);
faces.Add(rightFace);
faces.Add(backFace);
faces.Add(leftFace);
Polyhedron testPolyhedron = new Polyhedron(faces);
//now make some lines that will intersect it
Line intersecting1 = new Line(Point.MakePointWithInches(2, 0, 1), Point.MakePointWithInches(2, 1, 1));
Line intersecting2 = new Line(Point.MakePointWithInches(2, 0, .5), Point.MakePointWithInches(5, 12, 1));
Line intersectingAlongSide = new Line(Point.Origin, Point.MakePointWithInches(0, 1, 0));
Line noIntersect = new Line(Point.MakePointWithInches(5, 0, 0), Point.MakePointWithInches(5, 1, 0));
// Temporary
frontFace.DoesIntersect(intersecting1).Should().BeTrue();
backFace.DoesIntersect(intersecting1).Should().BeTrue();
// Temporary
intersecting1.DoesIntersect(testPolyhedron).Should().BeTrue();
intersecting2.DoesIntersect(testPolyhedron).Should().BeTrue();
intersectingAlongSide.DoesIntersect(testPolyhedron).Should().BeTrue();
noIntersect.DoesIntersect(testPolyhedron).Should().BeFalse();
}
public void Line_DoesIntersectLineSegment()
{
Line line1 = new Line(Point.MakePointWithInches(3, 0, 0), Point.MakePointWithInches(-3, 0, 0));
LineSegment segment1 = new LineSegment(Point.MakePointWithInches(3, -3, 0), Point.MakePointWithInches(2, 0, 0));
bool resultT1 = line1.DoesIntersect(segment1);
}
