content: package edu.stanford.rsl.conrad.geometry.transforms.test;
  
  import org.junit.Test;
  
  import edu.stanford.rsl.conrad.geometry.shapes.simple.PointND;
  import edu.stanford.rsl.conrad.geometry.transforms.ScaleRotate;
  import edu.stanford.rsl.conrad.numerics.SimpleMatrix;
  import edu.stanford.rsl.conrad.numerics.SimpleOperators;
  import edu.stanford.rsl.conrad.numerics.SimpleVector;
  import edu.stanford.rsl.conrad.utils.CONRAD;
  import edu.stanford.rsl.conrad.utils.TestingTools;
  
  /**
   * Class to test the accuracy of the {@link ScaleRotate} class
   * 
   * @see ScaleRotate
   * @author Rotimi X Ojo
   */
  public class TestScaleRotate {
  
  	@Test
  	public void main() {
  		System.out.println("Testing ScaleRotate class");	
  
  		SimpleVector oldDir = TestingTools.randVector(3);
  		SimpleMatrix randmatrix = TestingTools.randUpperTriangularMatrix(3, 3);
  		ScaleRotate scr = new ScaleRotate(randmatrix);
  		//Transform direction
  		SimpleVector newDir = scr.transform(oldDir);;
  		assert(SimpleOperators.equalElementWise(newDir,SimpleOperators.multiply(randmatrix, oldDir),0));
  		//Transform Point
  		PointND oldP = new PointND(oldDir);
  		PointND newP = scr.transform(oldP);
  		assert(SimpleOperators.equalElementWise(newP.getAbstractVector(),SimpleOperators.multiply(randmatrix, oldDir),0));
  		//Inverse Transform
  		ScaleRotate inscr = (ScaleRotate) scr.inverse();
  		//Invert new Direction		
  		assert(SimpleOperators.equalElementWise(inscr.transform(newDir),oldDir,CONRAD.SMALL_VALUE));
  		//Invert new Point
  		assert(SimpleOperators.equalElementWise(inscr.transform(newP).getAbstractVector(),oldP.getAbstractVector(),CONRAD.SMALL_VALUE));
  		
  		
  		System.out.println("Testing Complete");
  		
  	}
  
  }
  /*
   * Copyright (C) 2010-2014 Andreas Maier, Rotimi X Ojo
   * CONRAD is developed as an Open Source project under the GNU General Public License (GPL).
  */