Application: gvSIG desktop » gvSIG raster

package org.gvsig.raster.cache.buffer.impl.rocache;

import java.io.IOException;

import junit.framework.TestCase;

import org.gvsig.raster.cache.buffer.Band;

import org.gvsig.raster.cache.buffer.Buffer;

import org.gvsig.raster.cache.buffer.BufferDataSource;

import org.gvsig.raster.cache.buffer.impl.io.BufferDataSourceImpl;

/**

 * Copy the band 0 from a buffer over the band 2 in the same buffer using the

 * method getBandCopy.  

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class TestCopyBand extends TestCase {

        private String rasterIn = "./src/test/resources/image/001m09_1_0.tif";

        public void start() {

                this.setUp();

                this.testStack();

        }

        public void setUp() {

                System.err.println("ROCache TestCopyBand running...");

        }

        public void testStack() {

                long t1 = System.currentTimeMillis();

                try {                        

                        BufferDataSource ds = null;

                        try {

                                ds = new BufferDataSourceImpl(rasterIn);

                        } catch (IOException e) {

                                e.printStackTrace();

                        }

                        Buffer buf = new RasterReadOnlyBuffer(ds);

                        Band rb = buf.getBandCopy(0);

                        Band band1 = buf.getBand(0);

                        for (int i = 0; i < band1.getHeight(); i++) {

                                for (int j = 0; j < band1.getWidth(); j++) {

                                        byte b1 = band1.getElemByte(i, j);

                                        byte b2 = rb.getElemByte(i, j);

                                        assertEquals(b1, b2);

                                }

                        }

                        buf.free();

                } catch (IOException e) {

                        e.printStackTrace();

                }

                long t2 = System.currentTimeMillis();

                System.out.println("Tiempo ROCache TestCopyBand: " + (t2 - t1) + " milisegundos");

        }

}