void Awake()
{
var ecefPoint = LatLong.FromDegrees(InitialLatitude, InitialLongitude).ToECEF();
var heading = InitialHeadingInDegrees;
TangentBasis = EcefHelpers.EcefTangentBasisFromPointAndHeading(ecefPoint, heading);
}
public static void CalculateLookAt(
DoubleVector3 interestPointEcef,
Vector3 interestBasisFoward,
float pitchRadians,
float distanceCameraToInterest,
out DoubleVector3 cameraLocation,
out Vector3 cameraDirection,
out Vector3 cameraUp)
{
var interestBasis = new EcefTangentBasis(interestPointEcef, interestBasisFoward);
var q = Quaternion.AngleAxis(pitchRadians * Mathf.Rad2Deg, interestBasis.Right);
cameraDirection = q.RotatePoint(interestBasis.Forward);
var toCamera = -cameraDirection * distanceCameraToInterest;
cameraLocation = interestBasis.PointEcef + new DoubleVector3(toCamera.x, toCamera.y, toCamera.z);
cameraUp = Vector3.Cross(cameraDirection, interestBasis.Right);
}
internal void ApplyNativeCameraState(NativeCameraState nativeCameraState, UnityEngine.Camera controlledCamera)
{
controlledCamera.fieldOfView = nativeCameraState.fieldOfViewDegrees;
controlledCamera.nearClipPlane = nativeCameraState.nearClipPlaneDistance;
controlledCamera.farClipPlane = nativeCameraState.farClipPlaneDistance;
var interestBasis = new EcefTangentBasis(
nativeCameraState.interestPointECEF,
nativeCameraState.interestBasisRightECEF,
nativeCameraState.interestBasisUpECEF,
nativeCameraState.interestBasisForwardECEF);
Vector3 forward, up;
DoubleVector3 positionECEF;
CameraHelpers.CalculateLookAt(
interestBasis.PointEcef,
interestBasis.Forward,
nativeCameraState.pitchDegrees * Mathf.Deg2Rad,
nativeCameraState.distanceToInterestPoint,
out positionECEF, out forward, out up);
m_interestPointProvider.UpdateFromNative(nativeCameraState.interestPointECEF);
if (m_coordinateSystem == CoordinateSystem.ECEF)
{
var position = (positionECEF - m_originECEF).ToSingleVector();
controlledCamera.transform.position = position;
controlledCamera.transform.LookAt((interestBasis.PointEcef - m_originECEF).ToSingleVector(), up);
}
else // if (m_coordinateSystem == CoordinateSystem.UnityWorld)
{
controlledCamera.transform.position = m_frame.ECEFToLocalSpace(positionECEF);
controlledCamera.transform.LookAt(m_frame.ECEFToLocalSpace(interestBasis.PointEcef), m_frame.ECEFToLocalRotation * up);
}
}
/// <summary>
/// Set the heading in degrees of this transform, relative to north.
/// </summary>
/// <param name="headingInDegrees">The new heading of the transform.</param>
public void SetHeading(float headingInDegrees)
{
m_tangentBasis = EcefHelpers.EcefTangentBasisFromPointAndHeading(m_tangentBasis.PointEcef, headingInDegrees);
}
