* @return an array containing the min and max radius values
*/
public double[] getDefaultSearchRadius(WorldCoords centerPos, boolean useImageSize) {
Point2D.Double p1 = new Point2D.Double(1., 1.);
WorldCoordinateConverter wcs = getWCS();
wcs.imageToWorldCoords(p1, false);
double equinox = wcs.getEquinox();
WorldCoords origin = new WorldCoords(p1, equinox);
double maxRadius = centerPos.dist(origin);
return new double[]{0., maxRadius};