Passing a point collection to visual HitTest

Can I pass a collection of locations to HitTest(object, location). I have a line for an object and a points that make the edge of a shape, which are the locations. Is this an efficien开发者_开发知识库t way of finding the intersection point?

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Insead of a collection of points for the edges of an ellipse, can't you use an EllipseGeometry?

Here is an example

void SomeControl_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
    UIElement element = sender as UIElement;
    Point point = e.GetPosition(element);
    EllipseGeometry hitGeometry = new EllipseGeometry(point, 1.0, 1.0);
    VisualTreeHelper.HitTest(element,
                             null,
                             new HitTestResultCallback(HitTestCallback),
                             new GeometryHitTestParameters(hitGeometry)); 
}
public HitTestResultBehavior HitTestCallback(HitTestResult result)
{
    // Do your hit testing
}