Examples of purrpackagedemo.Transformation.Translation

    assertEquals( a + "," + b, a.y, b.y, .000001 );
  }
  
  @Test 
  public void testTransformationsOnPoints() {
    Translation t = new Translation( 3, -2.5 );
    assertPointEquals( new Point( 3, -2.5 ), t.apply( Point.ORIGIN ));
    assertPointEquals( new Point( 4, -1.5 ), t.apply( new Point( 1, 1 ) ) );
    
    Rotation r = new Rotation( Math.PI / 2.0 );
    assertPointEquals( new Point( 0, 1 ), r.apply( new Point( 1, 0 )) );
    assertPointEquals( new Point( -2, 0 ), r.apply( r.apply( new Point( 2, 0 ))) );


  @Test
  public void testTransformationsOnRegions() {
    Point[] ps = new Point[] { Point.ORIGIN, new Point( 0.5, -0.5 ), new Point( 1, 1 ) };
    Transformation[] ts = new Transformation[] { new Transformation.Expansion( 2.0 ),
        new Transformation.Rotation( 1 ), new Translation( 7, -8 ) };
    for( Transformation t : ts ) {
      Region tr = t.apply( Circle.UNIT );
      for ( Point p : ps ) {
        assertEquals( Circle.UNIT.contains( p ), tr.contains( t.apply( p )) );
      }

Related Classes of purrpackagedemo.Transformation.Translation

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