/// <summary> Sets the value of this axis-angle to the rotational component of
/// the passed matrix.
/// If the specified matrix has no rotational component, the value
/// of this AxisAngle4f is set to an angle of 0 about an axis of (0,1,0).
/// </summary>
/// <param name="m1">the matrix4f
/// </param>
public void set_Renamed(Matrix4f m1)
{
Matrix3f m3f = new Matrix3f();
m1.get_Renamed(m3f);
x = m3f.m21 - m3f.m12;
y = m3f.m02 - m3f.m20;
z = m3f.m10 - m3f.m01;
double mag = x * x + y * y + z * z;
if (mag > EPS)
{
mag = System.Math.Sqrt(mag);
double sin = 0.5 * mag;
double cos = 0.5 * (m3f.m00 + m3f.m11 + m3f.m22 - 1.0);
//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
angle = (float) System.Math.Atan2(sin, cos);
double invMag = 1.0 / mag;
//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
x = (float) (x * invMag);
//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
y = (float) (y * invMag);
//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
z = (float) (z * invMag);
}
else
{
x = 0.0f;
y = 1.0f;
z = 0.0f;
angle = 0.0f;
}
}
