MapToRotatedCartesianTest.java

/*-
 * Copyright (c) 2012 Diamond Light Source Ltd.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */

package org.eclipse.dawnsci.analysis.dataset.function;


import static org.junit.Assert.assertEquals;

import java.util.List;

import org.eclipse.dawnsci.analysis.dataset.impl.function.MapToRotatedCartesian;
import org.eclipse.dawnsci.analysis.dataset.impl.function.Sum;
import org.eclipse.january.dataset.Dataset;
import org.eclipse.january.dataset.DatasetFactory;
import org.junit.Before;
import org.junit.Test;

/**
 *
 */
public class MapToRotatedCartesianTest {
	Dataset d = DatasetFactory.zeros(new int[] {500, 500}, Dataset.FLOAT64);

	/**
	 */
	@Before
	public void setUp() {
		d.fill(1.);
	}

	/**
	 * 
	 */
	@Test
	public void testMapToRotatedCartesian() {
		MapToRotatedCartesian mp = new MapToRotatedCartesian(100,70,50,30,45.);
		Dataset pd = mp.value(d).get(0);
		
		Sum s = new Sum();
		List<Number> dsets = s.value(pd);
		double answer = 50.*30;
		assertEquals(answer, dsets.get(0).doubleValue(), answer*1e-4); // within 0.01% accuracy
	}

}