there was this old post on that
https://dotspatial.codeplex.com/discussions/249408
I didn't try to do what you ask but maybe it is a good starting point
otherwise you may also take advantage of the tutorial no. 4 of dotspatial, where they basically show you how to draw points, lines and polygons. I would implement something similar to the line drawing where you basically tell the code the center and the radius of the circle and draw a polyline made of a large number of small segments that resemble a circle.
Oscar
https://dotspatial.codeplex.com/discussions/249408
I didn't try to do what you ask but maybe it is a good starting point
otherwise you may also take advantage of the tutorial no. 4 of dotspatial, where they basically show you how to draw points, lines and polygons. I would implement something similar to the line drawing where you basically tell the code the center and the radius of the circle and draw a polyline made of a large number of small segments that resemble a circle.
Oscar