001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.image.feature.local.interest;
031
032import java.io.DataInput;
033import java.io.DataOutput;
034import java.io.IOException;
035import java.io.PrintWriter;
036import java.util.Scanner;
037
038import org.openimaj.math.geometry.shape.Ellipse;
039import org.openimaj.math.geometry.shape.EllipseUtilities;
040
041import Jama.Matrix;
042
043public class EllipticInterestPointData extends InterestPointData {
044
045        /**
046         * 
047         */
048        private static final long serialVersionUID = 3442580574124477236L;
049        
050        public Matrix transform;
051        
052        
053        public void setTransform(Matrix transform) {
054                this.transform = transform;
055        }
056        
057        @Override
058        public Matrix getTransform(){
059                Matrix m = new Matrix(3,3);
060                m.setMatrix(0, 1, 0,1,this.transform);
061                m.set(0, 2, 0);
062                m.set(1, 2, 0);
063                m.set(2, 2, 1);
064                return m;
065        }
066        
067        @Override
068        public Ellipse getEllipse() {
069                return EllipseUtilities.fromTransformMatrix2x2(transform, x, y, scale);
070        }
071        
072        @Override
073        public void writeBinary(DataOutput out) throws IOException {
074                super.writeBinary(out);
075                out.writeFloat((float) transform.get(0,0));
076                out.writeFloat((float) transform.get(0,1));
077                out.writeFloat((float) transform.get(1,0));
078                out.writeFloat((float) transform.get(1,1));
079        }
080        
081        @Override
082        public void writeASCII(PrintWriter out) throws IOException {
083                super.writeASCII(out);
084                out.format(" %4.2f %4.2f %4.2f %4.2f", (float) transform.get(0,0),(float) transform.get(0,1),(float) transform.get(1,0),(float) transform.get(1,1));
085        }
086        
087        @Override
088        public void readBinary(DataInput in) throws IOException {
089                super.readBinary(in);
090                this.transform = new Matrix(2,2);
091                this.transform.set(0, 0, in.readFloat());
092                this.transform.set(0, 1, in.readFloat());
093                this.transform.set(1, 0, in.readFloat());
094                this.transform.set(1, 1, in.readFloat());
095                this.setTransform(this.transform);
096        }
097        
098        @Override
099        public void readASCII(Scanner in) throws IOException {
100                super.readASCII(in);
101                this.transform = new Matrix(2,2);
102                this.transform.set(0, 0, in.nextFloat());
103                this.transform.set(0, 1, in.nextFloat());
104                this.transform.set(1, 0, in.nextFloat());
105                this.transform.set(1, 1, in.nextFloat());
106                this.setTransform(this.transform);
107        }
108        
109        @Override
110        public EllipticInterestPointData clone() {
111                EllipticInterestPointData d = (EllipticInterestPointData) super.clone();
112                d.transform = this.transform.copy();
113                return d;
114        }
115}