protected Coordinates ThreeDeeToGeo(Vector3d vector)
{
Matrix3d mat = dataset.Matrix;
mat.Invert();
Coordinates result = Coordinates.CartesianToSpherical(Vector3d.TransformCoordinate(vector, mat));
result.Lng = -result.Lng;
return(result);
}
public Vector2d GetImagePixel(Coordinates sky)
{
Vector2d result = new Vector2d();
//Vector3 tangent = GeoTo3dWithAltitude(sky.Lat, sky.Lng);
Vector3d tangent = Coordinates.RADecTo3d(sky.RA + 12, sky.Dec, 1);
Matrix3d mat = dataset.Matrix;
mat.Invert();
tangent = Vector3d.TransformCoordinate(tangent, mat);
Coordinates imagePoint = Coordinates.CartesianToSpherical(tangent);
result.X = (float)((imagePoint.Lng / ScaleX) + PixelCenterX);
result.Y = (float)((imagePoint.Lat / -ScaleY) + PixelCenterY);
return(result);
}
public IPlace HoverCheck(Vector3 searchPoint, IPlace defaultPlace, float distance)
{
searchPoint = -searchPoint;
Vector3 dist;
if (defaultPlace != null)
{
Vector3 testPoint = Coordinates.RADecTo3d(defaultPlace.RA, -defaultPlace.Dec, -1.0).Vector311;
dist = searchPoint - testPoint;
distance = dist.Length();
}
int closestItem = -1;
int index = 0;
foreach (Vector3 point in positions)
{
dist = searchPoint - point;
if (dist.Length() < distance)
{
distance = dist.Length();
closestItem = index;
}
index++;
}
lastHoverIndex = closestItem;
if (closestItem == -1)
{
return(defaultPlace);
}
Coordinates pnt = Coordinates.CartesianToSpherical(positions[closestItem]);
string name = this.names[closestItem];
if (String.IsNullOrEmpty(name))
{
name = string.Format("RA={0}, Dec={1}", Coordinates.FormatHMS(pnt.RA), Coordinates.FormatDMS(pnt.Dec));
}
TourPlace place = new TourPlace(name, pnt.Dec, pnt.RA, Classification.Unidentified, "", ImageSetType.Sky, -1);
return(place);
}