private void ExpectOppositeEdgesAreDifferent(VerticalPrismalSurface surface, IPolysurfaceVertex v1, IPolysurfaceVertex v2)
{
var edge1 = surface.GetEdge(v1, v2);
var edge2 = surface.GetEdge(v2, v1);
Expect(edge1, Is.Not.EqualTo(edge2));
}
// for a forward edge index is the source vertex; for a backward edge index is the target vertex
public HorizontalEdge(VerticalPrismalSurface parent, int index, BaseSide baseSide, Direction direction = Direction.Forward)
{
_parent = parent;
_index = index;
_baseSide = baseSide;
_direction = direction;
}
private void ExpectOppositeEdgesAreEqualAsUndirected(VerticalPrismalSurface surface, IPolysurfaceVertex v1, IPolysurfaceVertex v2)
{
var edge1 = surface.GetEdge(v1, v2);
var edge2 = surface.GetEdge(v2, v1);
Expect(edge1, Is.EqualTo(edge2).Using(surface.UndirectedEdgeComparer));
}
private void ExpectTwoConstructionsOfEdgeCoincide(VerticalPrismalSurface surface, IPolysurfaceVertex v1, IPolysurfaceVertex v2)
{
var edge1 = surface.GetEdge(v1, v2);
var edge2 = v1.Edges.Where(e => e.Target.Equals(v2)).Single();
Expect(edge1, Is.EqualTo(edge2));
Expect(edge1, Is.EqualTo(edge2).Using(surface.UndirectedEdgeComparer));
}
public void ZRange_is_equal_to_received_in_ctor()
{
var @base = Mock.Of <IOpenPolyline>();
var zRange = new Interval(-3.14, 2.88);
var surface = new VerticalPrismalSurface(@base, zRange);
Expect(surface.ZRange, Is.EqualTo(zRange));
}
public void Base_is_same_as_received_in_ctor()
{
var @base = Mock.Of <IOpenPolyline>();
var zRange = new Interval(-3.14, 2.88);
var surface = new VerticalPrismalSurface(@base, zRange);
Expect(surface.Base, Is.SameAs(@base));
}
private void ExpectGetEdgeReturnsCorrectEdge(VerticalPrismalSurface surface, IPolysurfaceVertex v1, IPolysurfaceVertex v2)
{
var edge1 = surface.GetEdge(v1, v2);
Expect(edge1, Is.Not.Null);
Expect(edge1.Source, Is.EqualTo(v1));
Expect(edge1.Target, Is.EqualTo(v2));
var edge2 = surface.GetEdge(v2, v1);
Expect(edge2, Is.Not.Null);
Expect(edge2.Source, Is.EqualTo(v2));
Expect(edge2.Target, Is.EqualTo(v1));
}
public void Face_Normal_is_consistent_with_edge_order_for_convex_base([ValueSource("GetFaceOrientationTestCases")] FaceOrientationTestCase testCase)
{
var baseVertices = new List <Vector2>
{
new Vector2(-1, +2),
new Vector2(+1, +2),
new Vector2(+2, +1),
new Vector2(+2, -1),
new Vector2(+1, -2),
new Vector2(-1, -2),
new Vector2(-2, -1),
new Vector2(-2, +1)
};
var line = new ClosedPolyline(baseVertices);
var @base = testCase.IsOrientedOutside ? line.AsReverse() : line;
var zRange = new Interval(-3.14, 2.88);
var surface = new VerticalPrismalSurface(@base, zRange, isClosed: true);
IPolysurfaceFace face;
if (testCase.IsVertical)
{
face = surface.GetVerticalFace(2);
}
else
{
face = surface.GetHorizontalFace(testCase.Side);
}
var edge1 = face.Edges.ElementAt(0);
var edge2 = face.Edges.ElementAt(1);
var expected = edge1.Vector().Cross(edge2.Vector());
Expect(face.Normal * expected, Is.Positive);
}
public HorizontalFace(VerticalPrismalSurface parent, BaseSide side)
{
_parent = parent;
_side = side;
}
public VerticalFace(VerticalPrismalSurface parent, int index)
{
_parent = parent;
_index = index;
}
public FaceCollection(VerticalPrismalSurface parent)
{
_parent = parent;
}
public VerticalEdge(VerticalPrismalSurface parent, int index, Direction direction = Direction.Up)
{
_parent = parent;
_index = index;
_direction = direction;
}
public Vertex(VerticalPrismalSurface parent, int index, BaseSide baseFace)
{
_parent = parent;
_index = index;
_baseFace = baseFace;
}
public UndirectedEdgeComparerImpl(VerticalPrismalSurface parent)
{
_parent = parent;
}