After some reserach on the internet I found that the inscribed circle is calculated basing on the volronoi diagram and using the convex hull of a set of points.The set of points can be extracted directly from the sketch entities.After that its possible to draw the convex hull of the set points.Finally , the voronoi diagram should be used to get the maximun inscribed circle .Some help please ?

After some reserach on the internet I found that the inscribed circle is calculated basing on the volronoi diagram and using the convex hull of a set of points.The set of points can be extracted directly from the sketch entities.After that its possible to draw the convex hull of the set points.Finally , the voronoi diagram should be used to get the maximun inscribed circle .Some help please ?