protected override void CalculateDistanceFromCamera()
{
Vector3 v3Tmp = this.Worldlocation;
v3Tmp.TransformCoordinate(CombinedTransformationMatrix * Device.Transform.World1);
Vec3d dvTmp = new Vec3d(null, v3Tmp.X, v3Tmp.Y, v3Tmp.Z);
this.m_fDistFromCamera = dvTmp.Distance(this.ParentStructure.BodyEditor.BodyView.CameraPosition);
}