/// <summary>Sets this transformation to be a rotation around point rotationCenter.</summary>
/// <remarks>
/// Sets this transformation to be a rotation around point rotationCenter.
/// When the axis Y is directed up and X is directed to the right, the
/// positive angle corresponds to the anti-clockwise rotation. When the axis
/// Y is directed down and X is directed to the right, the positive angle
/// corresponds to the clockwise rotation.
/// </remarks>
/// <param name="cosA">The cos of the rotation angle.</param>
/// <param name="sinA">The sin of the rotation angle.</param>
/// <param name="rotationCenter">The center point of the rotation.</param>
internal void SetRotate(double cosA, double sinA, com.epl.geometry.Point2D rotationCenter)
{
SetShift(-rotationCenter.x, -rotationCenter.y);
com.epl.geometry.Transformation2D temp = new com.epl.geometry.Transformation2D();
temp.SetRotate(cosA, sinA);
Multiply(temp);
Shift(rotationCenter.x, rotationCenter.y);
}
/// <summary>Rotates the transformation aroung a center point.</summary>
/// <param name="cos">The cos angle of the rotation.</param>
/// <param name="sin">sin angle of the rotation.</param>
/// <param name="rotationCenter">The center point of the rotation.</param>
public void Rotate(double cos, double sin, com.epl.geometry.Point2D rotationCenter)
{
com.epl.geometry.Transformation2D temp = new com.epl.geometry.Transformation2D();
temp.SetRotate(cos, sin, rotationCenter);
Multiply(temp);
}
/// <summary>Rotates the transformation.</summary>
/// <param name="cos">The cos angle of the rotation.</param>
/// <param name="sin">The sin angle of the rotation.</param>
public void Rotate(double cos, double sin)
{
com.epl.geometry.Transformation2D temp = new com.epl.geometry.Transformation2D();
temp.SetRotate(cos, sin);
Multiply(temp);
}
/// <summary>Rotates the transformation.</summary>
/// <param name="angle_in_Radians">The rotation angle in radian.</param>
public void Rotate(double angle_in_Radians)
{
com.epl.geometry.Transformation2D temp = new com.epl.geometry.Transformation2D();
temp.SetRotate(angle_in_Radians);
Multiply(temp);
}
