1 /* 2 * Copyright 2011 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.geometry; 18 19 import javax.annotation.Nullable; 20 21 /** 22 * The area of an interior, i.e. the region on the left side of an odd 23 * number of loops and optionally a centroid. 24 * The area is between 0 and 4*Pi. If it has a centroid, it is 25 * the true centroid of the interiord multiplied by the area of the shape. 26 * Note that the centroid may not be contained by the shape. 27 * 28 * @author dbentley@google.com (Daniel Bentley) 29 */ 30 public final class S2AreaCentroid { 31 32 private final double area; 33 private final S2Point centroid; 34 S2AreaCentroid(double area, @Nullable S2Point centroid)35 public S2AreaCentroid(double area, @Nullable S2Point centroid) { 36 this.area = area; 37 this.centroid = centroid; 38 } 39 getArea()40 public double getArea() { 41 return area; 42 } 43 getCentroid()44 @Nullable public S2Point getCentroid() { 45 return centroid; 46 } 47 } 48