Arrow in WPF code

There is nothing in this article, mainly someCode;

 

1: The background code in WPF draws a line similar to an arrow line;

 

Arrow line

// Fields
Private   Double Marrowangle =   0.17453292519943295 ;
Private   Double Marrowlengh =   30.0 ;

// Methods
Public   Override Geometry create ( Double X1, Double Y1, Double X2, Double Y2)
{
Point point =   New Point (x1, Y1 );
Point point2 =   New Point (X2, Y2 );
Double Num = Math. atan (Y2 - Y1) / (X2 - X1 ));
Double D = Num -   This . Arrowangle;
Double Num3 = Num +   This . Arrowangle;
Int Num4 = (X2 > X1) ?   - 1 : 1 ;
Double X = X2 + (Num4 *   This . Arrowlengh) * Math. Cos (d ));
Double Y = Y2 + (Num4 *   This . Arrowlengh) * Math. Sin (d ));
Double Num7 = X2 + (Num4 *   This . Arrowlengh) * Math. Cos (num3 ));
Double Num8 = Y2 + (Num4 *   This . Arrowlengh) * Math. Sin (num3 ));
Point point3 =   New Point (x, y );
Point point4 =   New Point (num7, num8 );
Pathgeometry Geometry =   New Pathgeometry ();
Pathfigure figure =   New Pathfigure ();
Figure. isfilled =   True ;
Figure. startpoint = Point2;
Point [] points =   New Point [] {point, point2, point3, point4, point2}; // from point2 to point, return to point2, and draw an arrow. And from point2 to point3 to point4 to point2 .....
Polylinesegment segment =   New Polylinesegment (points, True );
Figure. segments. Add (segment );
Geometry. Figures. Add (figure );
Geometry. Freeze ();
Return Geometry;
}

// Properties
Public   Double Arrowangle
{
Get
{
Return   This . Marrowangle;
}
Set
{
This . Marrowangle = Value;
}
}

Public   Double Arrowlengh
{
Get
{
Return   This . Marrowlengh;
}
Set
{
This . Marrowlengh = Value;
}
}