code: /*
   Copyright 1995-2017 Esri
  
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
         http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
  
   For additional information, contact:
   Environmental Systems Research Institute, Inc.
   Attn: Contracts Dept
   380 New York Street
   Redlands, California, USA 92373
  
   email: contracts@esri.com
   */
  
  package com.esri.core.geometry;
  
  import junit.framework.TestCase;
  import org.junit.Test;
  
  public class TestPolygonUtils extends TestCase {
  	@Override
  	protected void setUp() throws Exception {
  		super.setUp();
  	}
  
  	@Override
  	protected void tearDown() throws Exception {
  		super.tearDown();
  	}
  
  	@Test
  	public static void testPointInAnyOuterRing() {
  		Polygon polygon = new Polygon();
  		// outer ring1
  		polygon.startPath(-200, -100);
  		polygon.lineTo(200, -100);
  		polygon.lineTo(200, 100);
  		polygon.lineTo(-190, 100);
  		polygon.lineTo(-190, 90);
  		polygon.lineTo(-200, 90);
  
  		// hole
  		polygon.startPath(-100, 50);
  		polygon.lineTo(100, 50);
  		polygon.lineTo(100, -40);
  		polygon.lineTo(90, -40);
  		polygon.lineTo(90, -50);
  		polygon.lineTo(-100, -50);
  
  		// island
  		polygon.startPath(-10, -10);
  		polygon.lineTo(10, -10);
  		polygon.lineTo(10, 10);
  		polygon.lineTo(-10, 10);
  
  		// outer ring2
  		polygon.startPath(300, 300);
  		polygon.lineTo(310, 300);
  		polygon.lineTo(310, 310);
  		polygon.lineTo(300, 310);
  
  		polygon.reverseAllPaths();
  
  		Point2D testPointIn1 = new Point2D(1, 2); // inside the island
  		Point2D testPointIn2 = new Point2D(190, 90); // inside, betwen outer
  														// ring1 and the hole
  		Point2D testPointIn3 = new Point2D(305, 305); // inside the outer ring2
  		Point2D testPointOut1 = new Point2D(300, 2); // outside any
  		Point2D testPointOut2 = new Point2D(-195, 95); // outside any (in the
  														// concave area of outer
  														// ring 2)
  		Point2D testPointOut3 = new Point2D(99, 49); // outside (in the hole)
  
  		PolygonUtils.PiPResult res;
  		// is_point_in_polygon_2D
  		res = PolygonUtils.isPointInPolygon2D(polygon, testPointIn1, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPInside);
  		res = PolygonUtils.isPointInPolygon2D(polygon, testPointIn2, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPInside);
  		res = PolygonUtils.isPointInPolygon2D(polygon, testPointIn3, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPInside);
  
  		res = PolygonUtils.isPointInPolygon2D(polygon, testPointOut1, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPOutside);
  		res = PolygonUtils.isPointInPolygon2D(polygon, testPointOut2, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPOutside);
  		res = PolygonUtils.isPointInPolygon2D(polygon, testPointOut3, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPOutside);
  
  		// Ispoint_in_any_outer_ring
  		res = PolygonUtils.isPointInAnyOuterRing(polygon, testPointIn1, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPInside);
  		res = PolygonUtils.isPointInAnyOuterRing(polygon, testPointIn2, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPInside);
  		res = PolygonUtils.isPointInAnyOuterRing(polygon, testPointIn3, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPInside);
  
  		res = PolygonUtils.isPointInAnyOuterRing(polygon, testPointOut1, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPOutside);
  		res = PolygonUtils.isPointInAnyOuterRing(polygon, testPointOut2, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPOutside);
  		res = PolygonUtils.isPointInAnyOuterRing(polygon, testPointOut3, 0);
  		assertTrue(res == PolygonUtils.PiPResult.PiPInside);// inside of outer
  															// ring
  	}
  
  	@Test
  	public static void testPointInPolygonBugCR181840() {
  		PolygonUtils.PiPResult res;
  		{// pointInPolygonBugCR181840 - point in polygon bug
  			Polygon polygon = new Polygon();
  			// outer ring1
  			polygon.startPath(0, 0);
  			polygon.lineTo(10, 10);
  			polygon.lineTo(20, 0);
  
  			res = PolygonUtils.isPointInPolygon2D(polygon,
  					Point2D.construct(15, 10), 0);
  			assertTrue(res == PolygonUtils.PiPResult.PiPOutside);
  			res = PolygonUtils.isPointInPolygon2D(polygon,
  					Point2D.construct(2, 10), 0);
  			assertTrue(res == PolygonUtils.PiPResult.PiPOutside);
  			res = PolygonUtils.isPointInPolygon2D(polygon,
  					Point2D.construct(5, 5), 0);
  			assertTrue(res == PolygonUtils.PiPResult.PiPInside);
  		}
  
  		{// CR181840 - point in polygon bug
  			Polygon polygon = new Polygon();
  			// outer ring1
  			polygon.startPath(10, 10);
  			polygon.lineTo(20, 0);
  			polygon.lineTo(0, 0);
  
  			res = PolygonUtils.isPointInPolygon2D(polygon,
  					Point2D.construct(15, 10), 0);
  			assertTrue(res == PolygonUtils.PiPResult.PiPOutside);
  			res = PolygonUtils.isPointInPolygon2D(polygon,
  					Point2D.construct(2, 10), 0);
  			assertTrue(res == PolygonUtils.PiPResult.PiPOutside);
  			res = PolygonUtils.isPointInPolygon2D(polygon,
  					Point2D.construct(5, 5), 0);
  			assertTrue(res == PolygonUtils.PiPResult.PiPInside);
  		}
  	}
  }
  