C++ (Cpp) Quaternion Beispiele

Beispiel #1

Datei: CameraTransitionExample.cpp Projekt: Umar-Majeed/mobile-sdk-harness

Eegeo::v3 ComputeHeadingVector(Eegeo::dv3 interestPosition, float heading)
{
	Eegeo::v3 m_heading(0,1,0);
	Eegeo::dv3 interestEcefUp = interestPosition.Norm();
	Eegeo::v3 m_interestUp = Eegeo::v3(interestEcefUp.GetX(), interestEcefUp.GetY(), interestEcefUp.GetZ());

	Eegeo::v3 m_interestRight = Eegeo::v3::Cross(m_interestUp, m_heading);
	m_interestRight = m_interestRight.Norm();

	m_heading = Eegeo::v3::Cross(m_interestRight, m_interestUp);
	m_heading = m_heading.Norm();

	Eegeo::Quaternion headingRot;
	headingRot.Set(m_interestUp, heading);
	m_heading = headingRot.RotatePoint(m_heading);

	return m_heading;
}

Beispiel #2

Datei: CameraTransitionController.cpp Projekt: treejames/mobile-example-app

            Eegeo::v3 ComputeHeadingVector(Eegeo::dv3 interestPosition, float heading)
            {
                Eegeo::v3 interestForward(0,1,0);
                Eegeo::dv3 interestEcefUp = interestPosition.Norm();
                Eegeo::v3 interestUp = interestEcefUp.ToSingle();

                Eegeo::v3 interestRight = Eegeo::v3::Cross(interestUp, interestForward);
                interestRight = interestRight.Norm();

                interestForward = Eegeo::v3::Cross(interestRight, interestUp);
                interestForward = interestForward.Norm();

                Eegeo::Quaternion rotation;
                rotation.Set(interestUp, heading);
                interestForward = rotation.RotatePoint(interestForward);

                return interestForward;
            }