protected override Size ArrangeOverride(Size finalSize)
{
var minMax = this.GetMinMax();
var arrangeSize = finalSize
.AtLeast(minMax.min)
.AtMost(minMax.max);
var cx = arrangeSize.Width / 2;
var cy = arrangeSize.Height / 2;
var strokeThickness = ActualStrokeThickness;
_ellipse.SetAttribute(
("cx", cx.ToStringInvariant()),
("cy", cy.ToStringInvariant()),
("rx", (cx - strokeThickness).ToStringInvariant()),
("ry", (cy - strokeThickness).ToStringInvariant()));
return(base.ArrangeOverride(finalSize));
}