Visual CreateClippingGeometry()
{
DrawingContext dc;
DrawingVisual dv = PrepareDrawingVisual(out dc);
Geometry clip;
//Brush brush = Brushes.DarkOrange;
//Pen pen = new Pen(Brushes.DarkBlue, 3);
Point center = new Point(BoxWidth / 2, BoxHeight / 2);
BeginBox(dc, 1, BoxOptions.Tile, "Clip through pentagram");
clip = GeometrieSamples.GetPentagram(BoxHeight / 2, new Vector(center.X, center.Y));
dc.PushClip(clip);
DrawRays(dc);
//dc.DrawEllipse(brush, null, center, BoxWidth, BoxHeight);
//dc.DrawGeometry(brush, null, clip);
dc.Pop();
EndBox(dc);
//BeginBox(dc, 2, BoxOptions.Tile, "large arc, counterclockwise");
//EndBox(dc);
dc.Close();
return(dv);
}
Visual CreatePathDCPrimitives()
{
DrawingContext dc;
DrawingVisual dv = PrepareDrawingVisual(out dc);
Brush brush = Brushes.DarkOrange;
Pen pen = new Pen(Brushes.DarkBlue, 3);
Rect rect = new Rect(5, 5, BoxWidth - 10, BoxHeight - 10);
BeginBox(dc, 1, BoxOptions.Tile, "DrawLine");
dc.DrawLine(pen, new Point(5, 20), new Point(BoxWidth, 95));
EndBox(dc);
BeginBox(dc, 3, BoxOptions.Tile, "DrawRectangle");
dc.DrawRectangle(Brushes.DarkOrange, new Pen(Brushes.DarkBlue, 5), new Rect(0, 0, BoxWidth, BoxHeight));
EndBox(dc);
BeginBox(dc, 4, BoxOptions.Tile, "DrawRoundedRectangle");
dc.DrawRoundedRectangle(Brushes.DarkOrange, new Pen(Brushes.DarkBlue, 5), new Rect(0, 0, BoxWidth, BoxHeight), 25, 20);
EndBox(dc);
BeginBox(dc, 5, BoxOptions.Tile, "DrawEllipse");
dc.DrawEllipse(Brushes.DarkOrange, new Pen(Brushes.DarkBlue, 5), new Point(BoxWidth / 2, BoxHeight / 2), BoxWidth / 2 - 5, BoxHeight / 2 - 5);
EndBox(dc);
BeginBox(dc, 6, BoxOptions.Tile, "DrawEllipse");
dc.DrawEllipse(Brushes.DarkOrange, new Pen(Brushes.DarkBlue, 5), new Point(BoxWidth / 2, BoxHeight / 2), BoxHeight / 2 - 5, BoxHeight / 2 - 5);
EndBox(dc);
BeginBox(dc, 7, BoxOptions.Tile, "DrawLine");
dc.DrawGeometry(brush, pen, GeometrieSamples.GetPentagram(BoxHeight / 2 - 5, new Vector(BoxWidth / 2, BoxHeight / 2)));
dc.DrawLine(new Pen(Brushes.DarkGreen, 3), new Point(0, 0), new Point(BoxWidth, BoxHeight));
dc.DrawLine(new Pen(Brushes.DarkGreen, 3), new Point(BoxWidth, 0), new Point(0, BoxHeight));
EndBox(dc);
//BeginBox(dc, 8, BoxOptions.Tile, "DrawLine");
//dc.DrawLine(new Pen(Brushes.DarkGreen, 3), new Point(0, 0), new Point(BoxWidth, BoxHeight));
//dc.DrawLine(new Pen(Brushes.DarkGreen, 3), new Point(BoxWidth, 0), new Point(0, BoxHeight));
//EndBox(dc);
dc.Close();
return(dv);
}