/// <summary>
/// Creates and initializes a new instance from the given Box and Sphere.
/// </summary>
/// <param name="box">The bounding box.</param>
/// <param name="sphere">The bounding sphere.</param>
public FBoxSphereBounds(FBox box, FSphere sphere)
{
box.GetCenterAndExtents(out Origin, out BoxExtent);
SphereRadius = FMath.Min(BoxExtent.Size(), (sphere.Center - Origin).Size() + sphere.W);
DiagnosticCheckNaN();
}
/// <summary>
/// Creates and initializes a new instance the given Box.
///
/// The sphere radius is taken from the extent of the box.
/// </summary>
/// <param name="box">The bounding box.</param>
public FBoxSphereBounds(FBox box)
{
box.GetCenterAndExtents(out Origin, out BoxExtent);
SphereRadius = BoxExtent.Size();
DiagnosticCheckNaN();
}
/// <summary>
/// Creates and initializes a new instance from the given set of points.
///
/// The sphere radius is taken from the extent of the box.
/// </summary>
/// <param name="points">The points to be considered for the bounding box.</param>
public FBoxSphereBounds(FVector[] points)
{
FBox boundingBox = new FBox();
// find an axis aligned bounding box for the points.
for (uint pointIndex = 0; pointIndex < points.Length; pointIndex++)
{
boundingBox += points[pointIndex];
}
boundingBox.GetCenterAndExtents(out Origin, out BoxExtent);
// using the center of the bounding box as the origin of the sphere, find the radius of the bounding sphere.
SphereRadius = 0.0f;
for (uint pointIndex = 0; pointIndex < points.Length; pointIndex++)
{
SphereRadius = FMath.Max(SphereRadius, (points[pointIndex] - Origin).Size());
}
DiagnosticCheckNaN();
}
