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.geometry.core; 018 019/** Interface representing a geometric element with a size. The exact meaning 020 * of the size will vary between spaces and dimensions. For example, the size 021 * of a line is its length, while the size of a polygon is its area. 022 */ 023public interface Sized { 024 025 /** Get the size of the instance. 026 * @return the size of the instance 027 */ 028 double getSize(); 029 030 /** Return true if the size of the instance is finite. 031 * @return true if the size of the instance is finite 032 */ 033 default boolean isFinite() { 034 return Double.isFinite(getSize()); 035 } 036 037 /** Return true if the size of the instance is infinite. 038 * @return true if the size of the instance is infinite 039 */ 040 default boolean isInfinite() { 041 return Double.isInfinite(getSize()); 042 } 043}