
/*
 * Copyright (c) 2016 Vivid Solutions.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * and Eclipse Distribution License v. 1.0 which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v20.html
 * and the Eclipse Distribution License is available at
 *
 * http://www.eclipse.org/org/documents/edl-v10.php.
 */
package org.locationtech.jts.geom;

import org.locationtech.jts.io.WKTReader;

import junit.framework.TestCase;
import junit.textui.TestRunner;



/**
 * @version 1.7
 */
public class AreaLengthTest extends TestCase {

  private PrecisionModel precisionModel = new PrecisionModel();
  private GeometryFactory geometryFactory = new GeometryFactory(precisionModel, 0);
  WKTReader reader = new WKTReader(geometryFactory);
  
  private static final double TOLERANCE = 1E-5;
  
  public static void main(String args[]) {
    TestRunner.run(AreaLengthTest.class);
  }

  public AreaLengthTest(String name) { super(name); }

  public void testLength() throws Exception
  {
  	checkLength("MULTIPOINT (220 140, 180 280)", 0.0);
    checkLength("LINESTRING (220 140, 180 280)", 145.6021977);
    checkLength("LINESTRING (0 0, 100 100)", 141.4213562373095);
    checkLength("POLYGON ((20 20, 40 20, 40 40, 20 40, 20 20))", 80.0);
    checkLength("POLYGON ((20 20, 40 20, 40 40, 20 40, 20 20), (25 35, 35 35, 35 25, 25 25, 25 35))", 120.0);
  }

  public void testArea() throws Exception
  {
  	checkArea("MULTIPOINT (220 140, 180 280)", 0.0);
  	checkArea("LINESTRING (220 140, 180 280)", 0.0);
  	checkArea("POLYGON ((20 20, 40 20, 40 40, 20 40, 20 20))", 400.0);
  	checkArea("POLYGON ((20 20, 40 20, 40 40, 20 40, 20 20), (25 35, 35 35, 35 25, 25 25, 25 35))", 300.0);
  }

  public void checkLength(String wkt, double expectedValue) throws Exception {
		Geometry g = reader.read(wkt);
		double len = g.getLength();
//		//System.out.println(len);
		assertEquals(expectedValue, len, TOLERANCE);
	}

	public void checkArea(String wkt, double expectedValue) throws Exception {
		Geometry g = reader.read(wkt);
		assertEquals(expectedValue, g.getArea(), TOLERANCE);
	}

}
