public SizeD(SizeD size)
{
if (size == null)
{
throw new ArgumentNullException("size");
}
Width = size.Width;
Height = size.Height;
}
public RectD(PointD pt, SizeD sz)
{
if (pt == null)
{
throw new ArgumentNullException("pt");
}
if (sz == null)
{
throw new ArgumentNullException("sz");
}
X = pt.X;
Y = pt.Y;
Width = sz.Width;
Height = sz.Height;
}
public static PointD Subtract(PointD pt, SizeD sz)
{
return(new PointD(pt.X - sz.Width, pt.Y - sz.Height));
}
public static PointD Add(PointD pt, SizeD sz)
{
return(new PointD(pt.X + sz.Width, pt.Y + sz.Height));
}
public static SizeD Subtract(SizeD sz1, SizeD sz2)
{
return(new SizeD(sz1.Width - sz2.Width, sz1.Height - sz2.Height));
}
public static SizeD Add(SizeD sz1, SizeD sz2)
{
return(new SizeD(sz1.Width + sz2.Width, sz1.Height + sz2.Height));
}
