public void WindingOrderOnEllipsoid()
{
IList <Vector3D> positions = new List <Vector3D>();
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(0, 0))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(1, 0))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(1, 1))));
EllipsoidTangentPlane plane = new EllipsoidTangentPlane(Ellipsoid.UnitSphere, positions);
ICollection <Vector2D> positionsOnPlane = plane.ComputePositionsOnPlane(positions);
Assert.AreEqual(PolygonWindingOrder.Counterclockwise, SimplePolygonAlgorithms.ComputeWindingOrder(positionsOnPlane));
}
public void ComputeCurve2()
{
Vector3D p = -Vector3D.UnitZ;
Vector3D q = -Vector3D.UnitY;
IList <Vector3D> positions = Ellipsoid.UnitSphere.ComputeCurve(
p, q, Trig.ToRadians(30));
Assert.AreEqual(p, positions[0]);
Assert.IsTrue(new Vector3D(0, -0.5, -0.866025403784439).Normalize().EqualsEpsilon(positions[1].Normalize(), 1e-10));
Assert.IsTrue(new Vector3D(0, -0.866025403784439, -0.5).Normalize().EqualsEpsilon(positions[2].Normalize(), 1e-10));
Assert.AreEqual(q, positions[3]);
}
public void Triangle()
{
IList <Vector3D> positions = new List <Vector3D>();
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(0, 0))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(1, 0))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(1, 1))));
IndicesUnsignedInt indices = EarClippingOnEllipsoid.Triangulate(positions);
Assert.AreEqual(3, indices.Values.Count);
Assert.AreEqual(0, indices.Values[0]);
Assert.AreEqual(1, indices.Values[1]);
Assert.AreEqual(2, indices.Values[2]);
}
public void ComplexConcave()
{
IList <Vector3D> positions = new List <Vector3D>();
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(0, 0))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(2, 0))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(2, 1))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(0.1, 1.5))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(2, 2))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(0, 2))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(0, 1))));
positions.Add(Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic3D(1.9, 0.5))));
IndicesUnsignedInt indices = EarClippingOnEllipsoid.Triangulate(positions);
Assert.AreEqual(18, indices.Values.Count);
Assert.AreEqual(3, indices.Values[0]);
Assert.AreEqual(4, indices.Values[1]);
Assert.AreEqual(5, indices.Values[2]);
Assert.AreEqual(3, indices.Values[3]);
Assert.AreEqual(5, indices.Values[4]);
Assert.AreEqual(6, indices.Values[5]);
Assert.AreEqual(3, indices.Values[6]);
Assert.AreEqual(6, indices.Values[7]);
Assert.AreEqual(7, indices.Values[8]);
Assert.AreEqual(7, indices.Values[9]);
Assert.AreEqual(0, indices.Values[10]);
Assert.AreEqual(1, indices.Values[11]);
Assert.AreEqual(7, indices.Values[12]);
Assert.AreEqual(1, indices.Values[13]);
Assert.AreEqual(2, indices.Values[14]);
Assert.AreEqual(2, indices.Values[15]);
Assert.AreEqual(3, indices.Values[16]);
Assert.AreEqual(7, indices.Values[17]);
}
public void ToGeodetic3D()
{
Ellipsoid ellipsoid = new Ellipsoid(6378137.0, 6378137.0, 6356752.314245);
Vector3D v = ellipsoid.ToVector3D(new Geodetic3D(0, 0, 0));
Geodetic3D g = ellipsoid.ToGeodetic3D(v);
Assert.AreEqual(0.0, g.Longitude, 1e-10);
Assert.AreEqual(0.0, g.Latitude, 1e-8);
Assert.AreEqual(0.0, g.Height, 1e-10);
v = ellipsoid.ToVector3D(new Geodetic3D(Trig.ToRadians(45.0), Trig.ToRadians(-60.0), -123.4));
g = ellipsoid.ToGeodetic3D(v);
Assert.AreEqual(Trig.ToRadians(45.0), g.Longitude, 1e-10);
Assert.AreEqual(Trig.ToRadians(-60.0), g.Latitude, 1e-3);
Assert.AreEqual(-123.4, g.Height, 1e-3);
v = ellipsoid.ToVector3D(new Geodetic3D(Trig.ToRadians(-97.3), Trig.ToRadians(71.2), 1188.7));
g = ellipsoid.ToGeodetic3D(v);
Assert.AreEqual(Trig.ToRadians(-97.3), g.Longitude, 1e-10);
Assert.AreEqual(Trig.ToRadians(71.2), g.Latitude, 1e-3);
Assert.AreEqual(1188.7, g.Height, 1e-3);
}
public void TwoTriangles3()
{
Vector3D[] positions = new Vector3D[]
{
Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic2D(0, 44))),
Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic2D(1, 45))),
Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic2D(-1, 45))),
Ellipsoid.UnitSphere.ToVector3D(Trig.ToRadians(new Geodetic2D(0, 46)))
};
IndicesUnsignedInt indices = new IndicesUnsignedInt();
indices.Values.Add(0);
indices.Values.Add(1);
indices.Values.Add(2);
indices.Values.Add(3);
indices.Values.Add(2);
indices.Values.Add(1);
TriangleMeshSubdivisionResult result = TriangleMeshSubdivision.Compute(positions, indices, Trig.ToRadians(1.4));
Assert.AreEqual(5, result.Positions.Count);
Assert.AreEqual(12, result.Indices.Values.Count);
}
public void TwoTriangles()
{
Vector3D[] positions = new Vector3D[]
{
Vector3D.Zero,
new Vector3D(0.5, 0.5, 0),
new Vector3D(-0.5, 0.5, 0),
new Vector3D(0, 1, 0)
};
IndicesUnsignedInt indices = new IndicesUnsignedInt();
indices.Values.Add(0);
indices.Values.Add(1);
indices.Values.Add(2);
indices.Values.Add(3);
indices.Values.Add(2);
indices.Values.Add(1);
TriangleMeshSubdivisionResult result = TriangleMeshSubdivision.Compute(positions, indices, Trig.ToRadians(90));
Assert.AreEqual(0, result.Indices.Values[0]);
Assert.AreEqual(1, result.Indices.Values[1]);
Assert.AreEqual(2, result.Indices.Values[2]);
Assert.AreEqual(3, result.Indices.Values[3]);
Assert.AreEqual(2, result.Indices.Values[4]);
Assert.AreEqual(1, result.Indices.Values[5]);
}
public void OutOfRangeException()
{
TriangleMeshSubdivision.Compute(new Vector3D[] { }, new IndicesUnsignedInt(), Trig.ToRadians(1));
}
public void Null2()
{
TriangleMeshSubdivision.Compute(new Vector3D[] { }, null, Trig.ToRadians(1));
}
public void Null()
{
TriangleMeshSubdivision.Compute(null, new IndicesUnsignedInt(), Trig.ToRadians(1));
}
public void ToVector3D()
{
Ellipsoid ellipsoid = new Ellipsoid(1, 1, 0.7);
Assert.IsTrue(Vector3D.UnitX.EqualsEpsilon(ellipsoid.ToVector3D(new Geodetic3D(0, 0, 0)), 1e-10));
Assert.IsTrue(Vector3D.UnitY.EqualsEpsilon(ellipsoid.ToVector3D(new Geodetic3D(Trig.ToRadians(90), 0, 0)), 1e-10));
Assert.IsTrue(new Vector3D(0, 0, 0.7).EqualsEpsilon(ellipsoid.ToVector3D(new Geodetic3D(0, Trig.ToRadians(90), 0)), 1e-10));
}
