gvsig-raster / org.gvsig.raster.cache / trunk / org.gvsig.raster.cache / org.gvsig.raster.cache.lib.impl / src / test / java / org / gvsig / raster / cache / buffer / impl / memory / TestAddBand.java @ 1023
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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.Band; |
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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 add a band in a raster of 3 bands. As a result of this test a raster
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* of four bands is created and saved in the hard disk. The value of additional band
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* is zero in all its elements. Finally it gets the band added and compare each values
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* with 0.
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class TestAddBand 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-4bands.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 TestAddBand 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.addBand(1);
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//Write output file
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out = new GdalWrite(rasterOut, 4, input.getDataType(), input.getWidth(), input.getHeight(), GdalWrite.COLOR_INTERP_GRAY); |
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out.writeBands(buf.getBands()); |
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out.close(); |
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Band band = buf.getBand(1);
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for (int i = 0; i < band.getHeight(); i++) { |
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for (int j = 0; j < band.getWidth(); j++) { |
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byte b = band.getElemByte(i, j);
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assertEquals(0, b);
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} |
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} |
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buf.free(); |
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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 TestAddBand: " + (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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} |