How to make 161 meter / 528ft circles on with OSMDROID?

Question

I'm using OsmDroid on OpenStreetMaps and can make markers and polylines, but I can't find any examples on how I'd make 161m/528ft circles around a marker.

a) How do I make circles?
b) How do I make them 161m/528ft in size?

Answer 1

Thanks to MKer, I got an idea on how to solve the problem and made this piece of code, which works:

oPolygon = new org.osmdroid.bonuspack.overlays.Polygon(this);
final double radius = 161;
ArrayList<GeoPoint> circlePoints = new ArrayList<GeoPoint>();
for (float f = 0; f < 360; f += 1){
    circlePoints.add(new GeoPoint(latitude , longitude ).destinationPoint(radius, f));
}
oPolygon.setPoints(circlePoints);
oMap.getOverlays().add(oPolygon);`

I know this can be optimized. I'm drawing 360 points, no matter what the zoom is!