1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.geometry.enclosing;
18
19 import java.util.List;
20
21 import org.apache.commons.geometry.core.Point;
22
23 /** Interface for generating balls based on support points.
24 * <p>
25 * This generator is used in the {@link WelzlEncloser Emo Welzl} algorithm
26 * and its derivatives.
27 * </p>
28 * @param <P> Point type.
29 * @see EnclosingBall
30 */
31 public interface SupportBallGenerator<P extends Point<P>> {
32
33 /** Create a ball whose boundary lies on prescribed support points.
34 * @param support support points (may be empty)
35 * @return ball whose boundary lies on the prescribed support points
36 */
37 EnclosingBall<P> ballOnSupport(List<P> support);
38
39 }