/// <summary>
/// Get maximum internal rectangle smaller than the rectangle specified by 'l' and 's'
/// Each axis value in 's' must be positive.
/// </summary>
public static Rect3D MaxSmallerRect(LocationF l, Size3DF s)
{
Location loc = Location.Ceiling(l);
int x2 = (int)Math.Floor(l.X + s.sx);
int y2 = (int)Math.Floor(l.Y + s.sy);
int z2 = (int)Math.Floor(l.Z + s.sz);
Size3D size = new Size3D(x2 - loc.X, y2 - loc.Y, z2 - loc.Z);
return(new Rect3D(loc, size));
}
/// <summary>
/// Get horizontal <code>Direction</code> toward specified <code>Location</code> 'to'.
/// Retrun value is the nearest one in 16 directions.
/// </summary>
/// <param name="to"></param>
/// <returns></returns>
public Direction16 GetDirectionTo(LocationF to)
{
double v = Math.Atan2(to.Y - Y, to.X - X) / Math.PI;
if (v < 0)
{
v += 2.5;
}
else
{
v += 0.5;
}
// 180deg = 1, 22.5deg=1/8. so multiply v 8 times to make 22.5deg=1
int n = (int)Math.Round(v * 8);
return(Direction.GetByAngle(n));
}
/// Convert each coordinate to integer which is largest but not greater than original. ///
public static Location Floor(LocationF l)
{
return(new Location((int)Math.Floor(l.X), (int)Math.Floor(l.Y), (int)Math.Floor(l.Z)));
}
/// Convert each coordinate to integer which is smallest but not lesser than original. ///
public static Location Ceiling(LocationF l)
{
return(new Location((int)Math.Ceiling(l.X), (int)Math.Ceiling(l.Y), (int)Math.Ceiling(l.Z)));
}
public double GetPlaneDistanceTo(LocationF to)
{
return((to - this).ValueInPlane);
}
public double GetDistanceTo(LocationF to)
{
return((to - this).Value);
}
public Size3DF(LocationF l)
{
sx = l.X; sy = l.Y; sz = l.Z;
}