59 lines
2.0 KiB
Java
59 lines
2.0 KiB
Java
/*
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* Copyright (c) 2006, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4632108
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* @summary Verifies that the Area transform methods maintain double precision
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*/
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import java.awt.Rectangle;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.Area;
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public class TransformPrecision {
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public static void main(String argv[]) {
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int x = 1 << 27;
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int y = 1 << 26;
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AffineTransform tx = AffineTransform.getTranslateInstance(x, y);
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AffineTransform untx = AffineTransform.getTranslateInstance(-x, -y);
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Rectangle r = new Rectangle(10, 10, 20, 20);
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Area a = new Area(r);
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Area b = new Area(r);
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b.transform(tx);
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b.transform(untx);
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if (!a.equals(b)) {
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throw new RuntimeException("large translation hurt precision!");
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}
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b = a.createTransformedArea(tx);
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b = b.createTransformedArea(untx);
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if (!a.equals(b)) {
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throw new RuntimeException("large translation hurt precision!");
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}
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}
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}
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