/// <summary>
/// 获取向量的单位向量
/// </summary>
/// <param name="vector"></param>
/// <returns></returns>
public static CameraSpacePoint GetUnitVector(CameraSpacePoint vector)
{
CameraSpacePoint unitVector = new CameraSpacePoint();
float vectorLength = VectorHelp.GetVectorLength(vector);
if (vectorLength > 0)
{
unitVector.X = vector.X / vectorLength;
unitVector.Y = vector.Y / vectorLength;
unitVector.Z = vector.Z / vectorLength;
}
return(unitVector);
}
/// <summary>
/// 获取两个三维的点组成的向量,
/// 如向量AB
/// </summary>
/// <param name="A"></param>
/// <param name="B"></param>
/// <returns></returns>
public static CameraSpacePoint GetVector(CameraSpacePoint A, CameraSpacePoint B)
{
return(VectorHelp.GetSubtract(B, A));
}
