gvsig-raster / org.gvsig.raster.cache / trunk / org.gvsig.raster.cache / org.gvsig.raster.cache.lib.impl / deprecated / buffer / test / memory / TestRemoveBand.java @ 1965
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package org.gvsig.raster.cache.buffer.impl.memory; |
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import java.io.IOException; |
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import junit.framework.TestCase; |
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import org.gvsig.jgdal.GdalException; |
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import org.gvsig.raster.cache.buffer.Buffer; |
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import org.gvsig.raster.cache.buffer.exception.OperationNotSupportedException; |
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import org.gvsig.raster.cache.buffer.exception.ProcessInterruptedException; |
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import org.gvsig.raster.cache.buffer.impl.io.GdalRead; |
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import org.gvsig.raster.cache.buffer.impl.io.GdalWrite; |
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/**
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* This test read a RGB image and remove one band from the read buffer. Then compare
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* the bands that have not been removed with the source bands. As a result of this test a raster
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* of two bands is created and saved in the hard disk
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class TestRemoveBand extends TestCase { |
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private String rasterIn = "./src/test/resources/image/001m09_1_0.tif"; |
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private String rasterOut = "/tmp/out-2bands.tif"; |
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public void start() { |
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this.setUp();
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this.testStack();
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} |
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public void setUp() { |
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System.err.println("MemoryBuffer TestRemoveBand running..."); |
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} |
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public void testStack() { |
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long t1 = System.currentTimeMillis(); |
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GdalRead input = null;
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GdalWrite out = null;
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try {
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//Read input data
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input = new GdalRead(rasterIn);
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Object dataIn = input.readBlock(0, 0, input.getWidth(), input.getHeight()); |
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//Create Buffer
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Buffer buf = new RasterMemoryBuffer(input.getRasterBufTypeFromGdalType(input.getDataType()), |
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input.getWidth(), |
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input.getHeight(), |
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input.getBandCount(), |
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true);
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//Set data to buffer
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setLines(dataIn, buf); |
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buf.removeBand(1);
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//Write output file
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out = new GdalWrite(rasterOut, 2, input.getDataType(), input.getWidth(), input.getHeight(), GdalWrite.COLOR_INTERP_GRAY); |
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out.writeBands(buf.getBands()); |
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buf.free(); |
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out.close(); |
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//Open output file and compare
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GdalRead newFile = new GdalRead(rasterOut);
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Object dataOut = newFile.readBlock(0, 0, input.getWidth(), input.getHeight()); |
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byte[][][] d1 = (byte[][][])dataOut; |
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byte[][][] d2 = (byte[][][])dataIn; |
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for (int row = 0; row < buf.getHeight(); row++) { |
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for (int col = 0; col < buf.getWidth(); col++) { |
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if(d1[0][row][col] != d2[0][row][col]) |
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System.out.println("BAND:" + 0 +" ROW:" + row + " COL:" + col + " " + d1[0][row][col] + " " + d2[0][row][col]); |
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assertEquals(d1[0][row][col], d2[0][row][col]); |
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} |
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} |
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for (int row = 0; row < buf.getHeight(); row++) { |
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for (int col = 0; col < buf.getWidth(); col++) { |
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if(d1[1][row][col] != d2[2][row][col]) |
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System.out.println("BAND:" + 1 +" ROW:" + row + " COL:" + col + " " + d1[1][row][col] + " " + d2[2][row][col]); |
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assertEquals(d1[1][row][col], d2[2][row][col]); |
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} |
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} |
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} catch (GdalException e) {
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e.printStackTrace(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} catch (ProcessInterruptedException e) {
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e.printStackTrace(); |
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} catch (OperationNotSupportedException e) { |
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e.printStackTrace(); |
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} |
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long t2 = System.currentTimeMillis(); |
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System.out.println("Tiempo MemoryBuffer TestRemoveBand: " + (t2 - t1) + " milisegundos"); |
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} |
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private void setLines(Object dataIn, Buffer buf) throws OperationNotSupportedException { |
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if(dataIn instanceof byte[][][]) { |
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byte[][][] d = (byte[][][])dataIn; |
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for (int iBand = 0; iBand < d.length; iBand++) { |
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for (int row = 0; row < d[iBand].length; row++) { |
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buf.setLineInBandByte(d[iBand][row], row, iBand); |
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} |
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} |
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} |
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} |
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} |