| 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 String fileIn = baseDir + "potrace.bmp";

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

	private RasterDataset f1 = null;

	private int activaBit(int value, int pos) {

		value = (value | ((int)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() + 32 - 1) / 32;

			int[] bufferBits = new int[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) {

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

					}

					bit++;

					if (bit >= 32) {

						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] & ((int) 1 << j)) == 0)

//						System.out.print('1');

//					else

//						System.out.print('0');

//				}

//			}

			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();

	}

}