Here you can find the source of deriveLocation(Point origin, double radius)
public static Point deriveLocation(Point origin, double radius)
//package com.java2s; /*//from w w w . ja v a2 s.c o m * Biocep: R-based Platform for Computational e-Science. * * Copyright (C) 2007-2009 Karim Chine - karim.chine@m4x.org * * Copyright (C) 2007 EMBL-EBI-Microarray Informatics * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.awt.Point; public class Main { public static Point deriveLocation(Point origin, double radius) { return new Point((int) ((origin.getX() - radius) + (Math.random() * 2 * radius)), (int) ((origin.getY() - radius) + (Math.random() * 2 * radius))); } }