public void SetViewCenter(HorizontalCoordinate viewCenterCoord)
{
ViewCenterVector = viewCenterCoord.ToVector();
HorizontalCoordinate vertAxisCoord =
new HorizontalCoordinate(viewCenterCoord.Azimuth + 90, 0);
vertAxis = vertAxisCoord.ToVector();
horzAxis = Vector3.Cross(ViewCenterVector, vertAxis);
}
public void GetAngleOffsets(HorizontalCoordinate objectCoord,
out double horzAngle, out double vertAngle)
{
Vector3 objectVector = objectCoord.ToVector();
Vector3 horzObjectCross = Vector3.Cross(objectVector, -horzAxis);
Vector3 vertObjectCross = Vector3.Cross(objectVector, vertAxis);
horzObjectCross = Vector3.Normalize(horzObjectCross);
vertObjectCross = Vector3.Normalize(vertObjectCross);
double x = Vector3.Dot(horzObjectCross, vertAxis);
double y = Vector3.Dot(horzObjectCross, ViewCenterVector);
horzAngle = -180 * Math.Atan2(y, x) / Math.PI;
x = Vector3.Dot(vertObjectCross, horzAxis);
y = Vector3.Dot(vertObjectCross, ViewCenterVector);
vertAngle = -180 * Math.Atan2(y, x) / Math.PI;
}