public static PDFRect Union(PDFRect a, PDFRect b)
{
PDFUnit x = PDFUnit.Min(a.X, b.X);
PDFUnit x2 = PDFUnit.Max(a.X + a.Width, b.X + b.Width);
PDFUnit y = PDFUnit.Min(a.Y, b.Y);
PDFUnit y2 = PDFUnit.Max(a.Y + a.Height, b.Y + b.Height);
return(new PDFRect(x, y, x2 - x, y2 - y));
}
public static PDFRect Intersect(PDFRect a, PDFRect b)
{
PDFUnit x1 = PDFUnit.Max(a.X, b.X);
PDFUnit x2 = PDFUnit.Min(a.X + a.Width, b.X + b.Width);
PDFUnit y1 = PDFUnit.Max(a.Y, b.Y);
PDFUnit y2 = PDFUnit.Min(a.Y + a.Height, b.Y + b.Height);
if ((x2 >= x1) && (y2 >= y1))
{
return(new PDFRect(x1, y1, x2 - x1, y2 - y1));
}
else
{
return(PDFRect.Empty);
}
}
