/// <summary>
/// 判断两个正方形是否有重叠的区域（包括共用一条边）
/// </summary>
/// <param name="rect1">正方形1</param>
/// <param name="rect2">正方形2</param>
/// <returns>如果重叠则返回true，否则返回false</returns>
public static bool CheckTwoRectanglesIntersect(Rectangle rect1, Rectangle rect2)
{
bool result = ((((rect1.X <= (rect2.X + rect2.Width)) && (rect2.X <= (rect1.X + rect1.Width))) && (rect1.Y <= (rect2.Y + rect2.Height))) && (rect2.Y <= (rect1.Y + rect1.Height)));
return result;
}
public static bool PointInRectangle(Point p, Rectangle rect)
{
bool result = ((p.X >= rect.X) && (p.X <= (rect.X + rect.Width))) && ((p.Y >= rect.Y) && (p.Y <= (rect.Y + rect.Height)));
return result;
}
public static bool PointInTheMaxRectangle(Point p, Polygon polygon)
{
double maxX = polygon.Points.Max(u => u.X);
double minX = polygon.Points.Min(u => u.X);
double maxY = polygon.Points.Max(u => u.Y);
double minY = polygon.Points.Min(u => u.Y);
LineSegment line = new LineSegment(new Point(maxX, maxY), new Point(minX, minY));
Rectangle rec = new Rectangle(line);
return Rectangle.PointInRectangle(p, rec);
}