/* * Copyright (c) 2006, 2018, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 4632108 * @summary Verifies that the Area transform methods maintain double precision */ import java.awt.Rectangle; import java.awt.geom.AffineTransform; import java.awt.geom.Area; public class TransformPrecision { public static void main(String argv[]) { int x = 1 << 27; int y = 1 << 26; AffineTransform tx = AffineTransform.getTranslateInstance(x, y); AffineTransform untx = AffineTransform.getTranslateInstance(-x, -y); Rectangle r = new Rectangle(10, 10, 20, 20); Area a = new Area(r); Area b = new Area(r); b.transform(tx); b.transform(untx); if (!a.equals(b)) { throw new RuntimeException("large translation hurt precision!"); } b = a.createTransformedArea(tx); b = b.createTransformedArea(untx); if (!a.equals(b)) { throw new RuntimeException("large translation hurt precision!"); } } }