Arc Segment between two points and a radius

Question

I am trying to paint an arc segment using WPF, but I somehow cannot figure out how to do this using the ArcSegment-Element.

I have two points of the arc given (P1 and P2) and I also have the center of the circle and the radius.

Answer 1

Create a PathFigure with P1 as StartPoint and an ArcSegment with P2 as Point and a quadratic Size that contains the radius.

Example: P1 = (150,100), P2 = (50,50), Radius = 100, i.e. Size=(100,100):

<Path Stroke="Black">
    <Path.Data>
        <PathGeometry>
            <PathFigure StartPoint="150,100">
                <ArcSegment Size="100,100" Point="50,50"/>
            </PathFigure>
        </PathGeometry>
    </Path.Data>
</Path>

or shorter:

<Path Stroke="Black" Data="M150,100 A100,100 0 0 0 50,50"/>