001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.math3.geometry.enclosing; 018 019import java.util.List; 020 021import org.apache.commons.math3.geometry.Point; 022import org.apache.commons.math3.geometry.Space; 023 024/** Interface for generating balls based on support points. 025 * <p> 026 * This generator is used in the {@link WelzlEncloser Emo Welzl} algorithm 027 * and its derivatives. 028 * </p> 029 * @param <S> Space type. 030 * @param <P> Point type. 031 * @see EnclosingBall 032 * @since 3.3 033 */ 034public interface SupportBallGenerator<S extends Space, P extends Point<S>> { 035 036 /** Create a ball whose boundary lies on prescribed support points. 037 * @param support support points (may be empty) 038 * @return ball whose boundary lies on the prescribed support points 039 */ 040 EnclosingBall<S, P> ballOnSupport(List<P> support); 041 042}