<Point X="50" Y="100" />
<Point .../> describes a point in x- and y-coordinates. Point is used primarily to describe more complex shapes such as Polygon and Polyline.
Point is often declared through the use of abbreviated markup syntax. Wherever an attribute is specified as a Point, it can be declared as a comma-separated pair of Double values representing the x-coordinate and the y-coordinate, respectively:
<Element SomePointAttribute="0,0" />