Mega Code Archive
Creates a diagonal cross shape
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/*
* JCommon : a free general purpose class library for the Java(tm) platform
*
*
* (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* -------------------
* ShapeUtilities.java
* -------------------
* (C)opyright 2003-2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: ShapeUtilities.java,v 1.18 2008/06/02 06:58:28 mungady Exp $
*
* Changes
* -------
* 13-Aug-2003 : Version 1 (DG);
* 16-Mar-2004 : Moved rotateShape() from RefineryUtilities.java to here (DG);
* 13-May-2004 : Added new shape creation methods (DG);
* 30-Sep-2004 : Added createLineRegion() method (DG);
* Moved drawRotatedShape() method from RefineryUtilities class
* to this class (DG);
* 04-Oct-2004 : Renamed ShapeUtils --> ShapeUtilities (DG);
* 26-Oct-2004 : Added a method to test the equality of two Line2D
* instances (DG);
* 10-Nov-2004 : Added new translateShape() and equal(Ellipse2D, Ellipse2D)
* methods (DG);
* 11-Nov-2004 : Renamed translateShape() --> createTranslatedShape() (DG);
* 07-Jan-2005 : Minor Javadoc fix (DG);
* 11-Jan-2005 : Removed deprecated code in preparation for 1.0.0 release (DG);
* 21-Jan-2005 : Modified return type of RectangleAnchor.coordinates()
* method (DG);
* 22-Feb-2005 : Added equality tests for Arc2D and GeneralPath (DG);
* 16-Mar-2005 : Fixed bug where equal(Shape, Shape) fails for two Polygon
* instances (DG);
* 01-Jun-2008 : Fixed bug in equal(GeneralPath, GeneralPath) method (DG);
*
*/
import java.awt.Shape;
import java.awt.geom.GeneralPath;
/**
* Utility methods for {@link Shape} objects.
*
* @author David Gilbert
*/
public class Main {
/** A useful constant used internally. */
private static final float SQRT2 = (float) Math.pow(2.0, 0.5);
/**
* Creates a diagonal cross shape.
*
* @param l the length of each 'arm'.
* @param t the thickness.
*
* @return A diagonal cross shape.
*/
public static Shape createDiagonalCross(final float l, final float t) {
final GeneralPath p0 = new GeneralPath();
p0.moveTo(-l - t, -l + t);
p0.lineTo(-l + t, -l - t);
p0.lineTo(0.0f, -t * SQRT2);
p0.lineTo(l - t, -l - t);
p0.lineTo(l + t, -l + t);
p0.lineTo(t * SQRT2, 0.0f);
p0.lineTo(l + t, l - t);
p0.lineTo(l - t, l + t);
p0.lineTo(0.0f, t * SQRT2);
p0.lineTo(-l + t, l + t);
p0.lineTo(-l - t, l - t);
p0.lineTo(-t * SQRT2, 0.0f);
p0.closePath();
return p0;
}
}
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