public void Construct2()
{
Matrix3D m = new Matrix3D(
1.0, 2.0, 3.0,
4.0, 5.0, 6.0,
7.0, 8.0, 9.0);
Assert.AreEqual(1.0, m.Column0Row0);
Assert.AreEqual(2.0, m.Column1Row0);
Assert.AreEqual(3.0, m.Column2Row0);
Assert.AreEqual(4.0, m.Column0Row1);
Assert.AreEqual(5.0, m.Column1Row1);
Assert.AreEqual(6.0, m.Column2Row1);
Assert.AreEqual(7.0, m.Column0Row2);
Assert.AreEqual(8.0, m.Column1Row2);
Assert.AreEqual(9.0, m.Column2Row2);
Assert.AreEqual(1.0, m.ReadOnlyColumnMajorValues[0]);
Assert.AreEqual(4.0, m.ReadOnlyColumnMajorValues[1]);
Assert.AreEqual(7.0, m.ReadOnlyColumnMajorValues[2]);
Assert.AreEqual(2.0, m.ReadOnlyColumnMajorValues[3]);
Assert.AreEqual(5.0, m.ReadOnlyColumnMajorValues[4]);
Assert.AreEqual(8.0, m.ReadOnlyColumnMajorValues[5]);
Assert.AreEqual(3.0, m.ReadOnlyColumnMajorValues[6]);
Assert.AreEqual(6.0, m.ReadOnlyColumnMajorValues[7]);
Assert.AreEqual(9.0, m.ReadOnlyColumnMajorValues[8]);
}
public void Construct1()
{
Matrix3D m = new Matrix3D(1.0);
for (int i = 0; i < m.NumberOfComponents; ++i)
{
Assert.AreEqual(1.0, m.ReadOnlyColumnMajorValues[0], 1e-14);
}
}
public void DoubleToFloat()
{
Matrix3D m = new Matrix3D(
1.0, 2.0, 3.0,
4.0, 5.0, 6.0,
7.0, 8.0, 9.0);
Matrix3F mf = m.ToMatrix4F();
Assert.AreEqual(1.0, mf.ReadOnlyColumnMajorValues[0], 1e-7);
Assert.AreEqual(4.0, mf.ReadOnlyColumnMajorValues[1], 1e-7);
Assert.AreEqual(7.0, mf.ReadOnlyColumnMajorValues[2], 1e-7);
Assert.AreEqual(2.0, mf.ReadOnlyColumnMajorValues[3], 1e-7);
Assert.AreEqual(5.0, mf.ReadOnlyColumnMajorValues[4], 1e-7);
Assert.AreEqual(8.0, mf.ReadOnlyColumnMajorValues[5], 1e-7);
Assert.AreEqual(3.0, mf.ReadOnlyColumnMajorValues[6], 1e-7);
Assert.AreEqual(6.0, mf.ReadOnlyColumnMajorValues[7], 1e-7);
Assert.AreEqual(9.0, mf.ReadOnlyColumnMajorValues[8], 1e-7);
}
/// <summary>
/// Sets the <see cref="CenterPoint"/> and <see cref="FixedToLocalRotation"/> properties so that the
/// camera is looking at a given longitude, latitude, and height and is oriented in that point's local
/// East-North-Up frame. This method does not change the <see cref="Azimuth"/>, <see cref="Elevation"/>,
/// or <see cref="Range"/> properties, but the existing values of those properties are interpreted in the
/// new reference frame.
/// </summary>
/// <param name="longitude">The longitude of the point to look at, in radians.</param>
/// <param name="latitude">The latitude of the point to look at, in radians.</param>
/// <param name="height">The height of the point to look at, in meters above the <see cref="Ellipsoid"/> surface.</param>
public void ViewPoint(Ellipsoid ellipsoid, Geodetic3D geographic)
{
_centerPoint = ellipsoid.ToVector3D(geographic);
// Fixed to East-North-Up rotation, from Wikipedia's "Geodetic System" topic.
double cosLon = Math.Cos(geographic.Longitude);
double cosLat = Math.Cos(geographic.Latitude);
double sinLon = Math.Sin(geographic.Longitude);
double sinLat = Math.Sin(geographic.Latitude);
_fixedToLocalRotation =
new Matrix3D(-sinLon, cosLon, 0.0,
-sinLat * cosLon, -sinLat * sinLon, cosLat,
cosLat * cosLon, cosLat * sinLon, sinLat);
UpdateCameraFromParameters();
}
public bool Equals(Matrix3D other)
{
if (Matrix3D.ReferenceEquals(other, null))
{
return false;
}
for (int i = 0; i < _values.Length; ++i)
{
if (!_values[i].Equals(other._values[i]))
{
return false;
}
}
return true;
}
public void TestGetHashCode()
{
Matrix3D a = new Matrix3D(
1.0, 2.0, 3.0,
4.0, 5.0, 6.0,
7.0, 8.0, 9.0).Transpose();
Matrix3D b = new Matrix3D(0.0);
Matrix3D c = new Matrix3D(
1.0, 2.0, 3.0,
4.0, 5.0, 6.0,
7.0, 8.0, 9.0).Transpose();
Assert.AreEqual(a.GetHashCode(), c.GetHashCode());
Assert.AreNotEqual(a.GetHashCode(), b.GetHashCode());
}
public void Equals()
{
Matrix3D a = new Matrix3D(
1.0, 2.0, 3.0,
4.0, 5.0, 6.0,
7.0, 8.0, 9.0).Transpose();
Matrix3D b = new Matrix3D(0.0);
Matrix3D c = new Matrix3D(
1.0, 2.0, 3.0,
4.0, 5.0, 6.0,
7.0, 8.0, 9.0).Transpose();
Assert.IsTrue(a.Equals(c));
Assert.IsTrue(c.Equals(a));
Assert.IsTrue(a == c);
Assert.IsTrue(c == a);
Assert.IsFalse(c != a);
Assert.IsFalse(c != a);
Assert.IsFalse(a.Equals(b));
Assert.IsFalse(b.Equals(a));
Assert.IsFalse(a == b);
Assert.IsFalse(b == a);
Assert.IsTrue(a != b);
Assert.IsTrue(b != a);
object objA = a;
object objB = b;
object objC = c;
Assert.IsTrue(a.Equals(objA));
Assert.IsTrue(a.Equals(objC));
Assert.IsFalse(a.Equals(objB));
Assert.IsTrue(objA.Equals(objC));
Assert.IsFalse(objA.Equals(objB));
Assert.IsFalse(a.Equals(null));
Assert.IsFalse(a.Equals(5));
}
public void MultiplyVector2()
{
Matrix3D m = new Matrix3D(
1.0, 0.0, 2.0,
0.0, 1.0, 3.0,
2.0, 0.0, 1.0);
Vector3D v = new Vector3D(1.0, 2.0, 3.0);
Vector3D result = new Vector3D(7.0, 11.0, 5.0);
Assert.AreEqual(result, m * v);
}
public void MultiplyVector0()
{
Matrix3D zero = new Matrix3D(0.0);
Vector3D v = new Vector3D(1.0, 2.0, 3.0);
Assert.AreEqual(Vector3D.Zero, zero * v);
}
public void Transpose()
{
Matrix3D m = new Matrix3D(
1.0, 2.0, 3.0,
4.0, 5.0, 6.0,
7.0, 8.0, 9.0).Transpose();
Assert.AreEqual(1.0, m.Column0Row0);
Assert.AreEqual(4.0, m.Column1Row0);
Assert.AreEqual(7.0, m.Column2Row0);
Assert.AreEqual(2.0, m.Column0Row1);
Assert.AreEqual(5.0, m.Column1Row1);
Assert.AreEqual(8.0, m.Column2Row1);
Assert.AreEqual(3.0, m.Column0Row2);
Assert.AreEqual(6.0, m.Column1Row2);
Assert.AreEqual(9.0, m.Column2Row2);
}