For a point, how do you create circles that shows a certain distance from a point. For instance, I have the following point:
What I want to have is this:
For instance, while the black circle represents all the points that are 2 kilometers away from the point, dark red circle represents all the points that are 4 kilometers away.
And is it possible to fill these circles with colors in a non-opaque way while making the map clearly visible?