public static BoundingBox CreateFromPoints(IEnumerable <Vector3> points)
{
if (points == null)
{
throw new ArgumentNullException();
}
// TODO: Just check that Count > 0
bool empty = true;
Vector3 vector2 = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);
Vector3 vector1 = new Vector3(float.MinValue, float.MinValue, float.MinValue);
foreach (Vector3 vector3 in points)
{
vector2 = Vector3Extensions.Min(vector2, vector3);
vector1 = Vector3Extensions.Max(vector1, vector3);
empty = false;
}
if (empty)
{
throw new ArgumentException();
}
return(new BoundingBox(vector2, vector1));
}
public bool Intersects(BoundingSphere sphere)
{
float val = Vector3Extensions.Distance(sphere.Center, Center);
if (val > sphere.Radius + Radius)
{
return(false);
}
return(true);
}
public static BoundingSphere CreateFromBoundingBox(BoundingBox box)
{
// Find the center of the box.
Vector3 center = new Vector3((box.Min.X + box.Max.X) / 2.0f,
(box.Min.Y + box.Max.Y) / 2.0f,
(box.Min.Z + box.Max.Z) / 2.0f);
// Find the distance between the center and one of the corners of the box.
float radius = Vector3Extensions.Distance(center, box.Max);
return(new BoundingSphere(center, radius));
}
public ContainmentType Contains(Vector3 point)
{
float distance = Vector3Extensions.Distance(point, Center);
if (distance > this.Radius)
{
return(ContainmentType.Disjoint);
}
else if (distance < this.Radius)
{
return(ContainmentType.Contains);
}
return(ContainmentType.Intersects);
}
public ContainmentType Contains(BoundingSphere sphere)
{
float val = Vector3Extensions.Distance(sphere.Center, Center);
if (val > sphere.Radius + Radius)
{
return(ContainmentType.Disjoint);
}
else if (val <= Radius - sphere.Radius)
{
return(ContainmentType.Contains);
}
else
{
return(ContainmentType.Intersects);
}
}
public static BoundingBox CreateMerged(BoundingBox original, BoundingBox additional)
{
return(new BoundingBox(
Vector3Extensions.Min(original.Min, additional.Min), Vector3Extensions.Max(original.Max, additional.Max)));
}