public bool IsExtentsCross(Rect3D extents)
{
Rect3D sum = this + extents;
return((sum.XRange <= this.XRange + extents.XRange) && (sum.YRange <= this.YRange + extents.YRange) && (sum.ZRange <= this.ZRange + extents.ZRange));
}
public bool IsExtentsIn(Rect3D extents)
{
return(extents.min.x >= min.x && extents.min.y >= min.y && extents.max.x <= max.x && extents.max.y <= max.y && extents.min.z >= min.z && extents.max.z <= max.z);
}