CreateFromSize() статический приватный Метод

static private CreateFromSize ( Size renderSize ) : Ellipse
renderSize System.Windows.Size
Результат Ellipse
        protected override Geometry GetOrCreateConnectorGeometry(Size renderSize)
        {
            var ellipse = Ellipse.CreateFromSize(renderSize);

            this.SetCurrentValue(EllipseProperty, ellipse);
            if (ellipse.IsZero)
            {
                return(Geometry.Empty);
            }

            var direction   = this.ConnectorOffset;
            var ip          = ellipse.PointOnCircumference(direction);
            var vertexPoint = ip + this.ConnectorOffset;
            var ray         = new Ray(vertexPoint, this.ConnectorOffset.Negated());

            var p1 = ConnectorPoint.Find(ray, this.ConnectorAngle / 2, this.StrokeThickness, ellipse);
            var p2 = ConnectorPoint.Find(ray, -this.ConnectorAngle / 2, this.StrokeThickness, ellipse);

            this.SetCurrentValue(ConnectorVertexPointProperty, vertexPoint);
            this.SetCurrentValue(ConnectorPoint1Property, p1);
            this.SetCurrentValue(ConnectorPoint2Property, p2);
            if (this.ConnectorGeometry is PathGeometry)
            {
                return(this.ConnectorGeometry);
            }

            var figure = this.CreatePathFigureStartingAt(ConnectorPoint1Property);

            figure.Segments.Add(this.CreateLineSegmentTo(ConnectorVertexPointProperty));
            figure.Segments.Add(this.CreateLineSegmentTo(ConnectorPoint2Property));
            var geometry = new PathGeometry();

            geometry.Figures.Add(figure);
            return(geometry);
        }
        protected override Geometry GetOrCreateBoxGeometry(Size renderSize)
        {
            var ellipse = Ellipse.CreateFromSize(renderSize);

            this.SetCurrentValue(EllipseProperty, ellipse);
            if (ellipse.RadiusX <= 0 || ellipse.RadiusY <= 0)
            {
                return(Geometry.Empty);
            }

            if (this.BoxGeometry is EllipseGeometry)
            {
                return(this.BoxGeometry);
            }

            var geometry = new EllipseGeometry();

            geometry.Bind(EllipseGeometry.CenterProperty)
            .OneWayTo(this, EllipseProperty, EllipseCenterConverter.Default);
            geometry.Bind(EllipseGeometry.RadiusXProperty)
            .OneWayTo(this, EllipseProperty, EllipseRadiusXConverter.Default);
            geometry.Bind(EllipseGeometry.RadiusYProperty)
            .OneWayTo(this, EllipseProperty, EllipseRadiusYConverter.Default);
            return(geometry);
        }