| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 */

package org.gvsig.raster.potrace;

import org.gvsig.jpotrace.Potrace;

import org.gvsig.jpotrace.PotraceException;

import org.gvsig.raster.buffer.BufferFactory;

import org.gvsig.raster.buffer.RasterBuffer;

import org.gvsig.raster.dataset.NotSupportedExtensionException;

import org.gvsig.raster.dataset.RasterDataset;

import org.gvsig.raster.dataset.io.RasterDriverException;

/**

 * 

 * @version 05/08/2008

 * @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)

 */

public class TestRasterPotrace {

        private String baseDir = "./test-images/";

//        private String fileIn = baseDir + "wheel.bmp";

//        private String fileOut = "/tmp/wheel.eps";

        private String fileIn = baseDir + "letters.bmp";

        private String fileOut = "/tmp/letters.eps";

        private RasterDataset f1 = null;

        private long activaBit(long value, int pos) {

                value = (value | ((long)1 << pos));

                return value;

        }

        public TestRasterPotrace() {

                try {

                        f1 = RasterDataset.open(null, fileIn);

                        BufferFactory ds = new BufferFactory(f1);

                        ds.setAllDrawableBands();

                        ds.setAreaOfInterest();

                        RasterBuffer buf = (RasterBuffer) ds.getRasterBuf();

                        int dy = (buf.getWidth() + 64 - 1) / 64;

                        long[] bufferBits = new long[buf.getHeight() * dy];

                        for (int i = 0; i < bufferBits.length; i++)

                                bufferBits[i] = 0;

                        int bit = 0;

                        int pos = 0;

                        for (int i = 0; i < buf.getHeight(); i++) {

                                pos = (buf.getHeight() - i - 1) * dy;

                                bit = 0;

                                for (int j = 0; j < buf.getWidth(); j++) {

                                        byte data = buf.getElemByte(i, j, 0);

                                        if (data == 0) {

                                                if (bit < 32)

                                                        bufferBits[pos] = activaBit(bufferBits[pos], 31 - bit);

                                                else

                                                        bufferBits[pos] = activaBit(bufferBits[pos], Math.abs(bit-95));

                                        }

                                        bit++;

                                        if (bit >= 64) {

                                                bit = 0;

                                                pos++;

                                        }

                                }

                        }

                        for (int i = 0; i < bufferBits.length; i++) {

                                if ((i % dy) == 0)

                                        System.out.println("");

                                for (int j=31; j>=0; j--) {

                                        if ((bufferBits[i] & ((long) 1 << j)) == 0)

                                                System.out.print('1');

                                        else

                                                System.out.print('0');

                                }

                                for (int j=63; j>=32; j--) {

                                        if ((bufferBits[i] & ((long) 1 << j)) == 0)

                                                System.out.print('1');

                                        else

                                                System.out.print('0');

                                }

                        }

                        System.out.println("");

                        System.out.println(bufferBits.length);

                        Potrace.vectorizeBufferRaster(bufferBits, buf.getWidth(), buf.getHeight(), fileOut);

                } catch (NotSupportedExtensionException e) {

                        e.printStackTrace();

                } catch (RasterDriverException e) {

                        e.printStackTrace();

                } catch (InterruptedException e) {

                        e.printStackTrace();

                } catch (PotraceException e) {

                        e.printStackTrace();

                }

        }

        public static void main(String[] args){

                new TestRasterPotrace();

        }

}