/// <summary>Creates a skew matrix from the given angles in radians.</summary>
/// <param name="radiansX">The X angle, in radians.</param>
/// <param name="radiansY">The Y angle, in radians.</param>
/// <returns>A skew matrix.</returns>
public static Matrix3X2 <T> CreateSkew <T>(T radiansX, T radiansY)
where T : unmanaged, IFormattable, IEquatable <T>, IComparable <T>
{
Matrix3X2 <T> result = Matrix3X2 <T> .Identity;
T xTan = Scalar.Tan(radiansX);
T yTan = Scalar.Tan(radiansY);
result.M12 = yTan;
result.M21 = xTan;
return(result);
}
/// <summary>Creates a skew matrix from the given angles in radians and a center point.</summary>
/// <param name="radiansX">The X angle, in radians.</param>
/// <param name="radiansY">The Y angle, in radians.</param>
/// <param name="centerPoint">The center point.</param>
/// <returns>A skew matrix.</returns>
public static Matrix3X2 <T> CreateSkew <T>(T radiansX, T radiansY, Vector2D <T> centerPoint)
where T : unmanaged, IFormattable, IEquatable <T>, IComparable <T>
{
Matrix3X2 <T> result = Matrix3X2 <T> .Identity;
T xTan = Scalar.Tan(radiansX);
T yTan = Scalar.Tan(radiansY);
T tx = Scalar.Negate(Scalar.Multiply(centerPoint.Y, xTan));
T ty = Scalar.Negate(Scalar.Multiply(centerPoint.X, yTan));
result.M12 = yTan;
result.M21 = xTan;
result.M31 = tx;
result.M32 = ty;
return(result);
}