Vector4.DistanceSquared Method (Vector4, Vector4)
Calculates the distance between two vectors squared.
'Declaration
Public Shared Function DistanceSquared ( _
value1 As Vector4, _
value2 As Vector4 _
) As Single
public static float DistanceSquared (
Vector4 value1,
Vector4 value2
)
public:
static float DistanceSquared(
Vector4 value1,
Vector4 value2
)
Type: Single
The distance between the source vectors squared.
Distance is calculated with the following formula:
.png "Bb196324.distance(en-us,XNAGameStudio.42).png")
Distance squared is the value before taking the square root. Distance squared can often be used in place of distance if relative comparisons are being made. For example, consider three points A, B, and C. To determine whether B or C is further from A, compare the distance between A and B to the distance between A and C. Calculating the two distances involves two square roots, which are computationally expensive. However, using distance squared provides the same information and avoids calculating two square roots.
Namespace: Microsoft.Xna.Framework
Assembly: Microsoft.Xna.Framework (in microsoft.xna.framework.dll)
Vector4 Structure
Vector4 Members
Microsoft.Xna.Framework Namespace
Windows Phone