/*
* org.openmicroscopy.shoola.util.math.geom2D.TestEllipseArea
*
*------------------------------------------------------------------------------
* Copyright (C) 2006 University of Dundee. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.util.math.geom2D;
//Java imports
import java.awt.Rectangle;
//Third-party libraries
import junit.framework.TestCase;
//Application-internal dependencies
/**
* Unit test for {@link EllipseArea}.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author <br>Andrea Falconi
* <a href="mailto:a.falconi@dundee.ac.uk">
* a.falconi@dundee.ac.uk</a>
* @version 2.2
* <small>
* (<b>Internal version:</b> $Revision$ $Date$)
* </small>
* @since OME2.2
*/
public class TestEllipseArea
extends TestCase
{
private static final int LENGTH = 4, MAX_ITER = 1000;
public void testEllipse()
{
EllipseArea area = new EllipseArea(0, 0, 5000,
5000);
Rectangle r = area.getBounds();
assertEquals("Should set x to argument passed to constructor.",
0, r.x, 0);
assertEquals("Should set y to argument passed to constructor.",
0, r.y, 0);
assertEquals("Should set w to argument passed to constructor.",
5000, r.width, 0);
assertEquals("Should set h to argument passed to constructor.",
5000, r.height, 0);
}
public void testSetBounds()
{
EllipseArea area = new EllipseArea(0, 0, 1, 1);
area.setBounds(0, 0, 2, 2);
Rectangle r = area.getBounds();
assertEquals("Should set x to argument passed to setBounds() method.",
0, r.x, 0);
assertEquals("Should set y to argument passed to setBounds() method.",
0, r.y, 0);
assertEquals("Should set w to argument passed to setBounds() method.",
2, r.width, 0);
assertEquals("Should set h to argument passed to setBounds() method.",
2, r.height, 0);
}
public void testScale()
{
EllipseArea area = new EllipseArea(0, 0, 1, 1);
double j;
Rectangle r = area.getBounds();
Rectangle rScale;
for (int i = 0; i < MAX_ITER; i++) {
j = ((double) i)/MAX_ITER;
area.scale(j);
rScale = area.getBounds();
assertEquals("Wrong scale x [i = "+i+"].", rScale.x, (int) (r.x*j),
0);
assertEquals("Wrong scale y [i = "+i+"].", rScale.y, (int) (r.y*j),
0);
assertEquals("Wrong scale w [i = "+i+"].", rScale.width,
(int) (r.width*j), 0);
assertEquals("Wrong scale h [i = "+i+"].", rScale.height,
(int) (r.height*j), 0);
}
}
public void testPlanePoints1()
{
EllipseArea area = new EllipseArea(0, 0, 1, 1);
//Empty array
PlanePoint[] points = area.getPoints();
assertEquals("Wrong size of the array", 0, points.length, 0);
}
public void testPlanePoints2()
{
//Ellipse which only contains the origin.
EllipseArea area = new EllipseArea(-1, -1, 2, 2);
PlanePoint[] points = area.getPoints();
assertEquals("Wrong size of the array", 1, points.length, 0);
assertEquals("Wrong x coordinate", 0, points[0].x1, 0);
assertEquals("Wrong y coordinate", 0, points[0].x2, 0);
}
public void testPlanePoints3()
{
//Ellipse containing 9 points.
// (-1, 1), (0, 1), (1, 1), (-1, 0), (0, 0), (0, 1)
// (-1, -1), (0, -1), (1, -1)
EllipseArea area = new EllipseArea(-2, -2, LENGTH, LENGTH);
PlanePoint[] points = area.getPoints();
assertEquals("Wrong size of the array", 2*LENGTH+1, points.length, 0);
PlanePoint point;
int k = -1, j = -1, l = 1;
for (int i = 0; i < points.length; i++) {
point = points[i];
assertEquals("Wrong x coordinate", k, point.x1, 0);
assertEquals("Wrong y coordinate", j, point.x2, 0);
if (i == l*(LENGTH-1)-1) {
l++;
j++;
k = -2;
}
k++;
}
}
public void testOnBoundaries()
{
EllipseArea area = new EllipseArea(-1, -1, 2, 2);
assertFalse(area.onBoundaries(0, 0));
}
}