gvsig-raster / org.gvsig.raster / branches / org.gvsig.raster.2.4 / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.buffer / org.gvsig.raster.lib.buffer.impl / src / main / java / org / gvsig / raster / lib / buffer / impl / DefaultBandByte.java @ 5486
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package org.gvsig.raster.lib.buffer.impl; |
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import java.util.Arrays; |
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import org.gvsig.raster.lib.buffer.api.Band; |
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import org.gvsig.raster.lib.buffer.api.BufferManager; |
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import org.gvsig.raster.lib.buffer.api.NoData; |
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import org.gvsig.raster.lib.buffer.api.Band.BandByte; |
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import org.gvsig.raster.lib.buffer.api.RasterLocator; |
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import org.gvsig.raster.lib.buffer.impl.exceptions.CopyFromBandException; |
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/**
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* @author fdiaz
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*
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*/
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public class DefaultBandByte extends AbstractBand implements BandByte { |
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byte[] data; |
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/**
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* @param rows
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* @param columns
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*/
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public DefaultBandByte(int rows, int columns) { |
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this(rows, columns, RasterLocator.getBufferManager().createNoData(null, null)); |
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} |
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/**
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* @param rows
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* @param columns
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* @param noData
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*/
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public DefaultBandByte(int rows, int columns, NoData noData) { |
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this.rows = rows;
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this.columns = columns;
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data = new byte[rows * columns]; |
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if(noData==null){ |
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this.noData = RasterLocator.getBufferManager().createNoData(null, null); |
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} else {
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this.noData = noData;
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} |
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} |
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@Override
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public int getDataType() { |
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return BufferManager.TYPE_BYTE;
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} |
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@Override
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public Object get(int row, int column) { |
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return getValue(row, column);
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} |
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@Override
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public void set(int row, int column, Object value) { |
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setValue(row, column, (byte) value);
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} |
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@Override
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public void fill(Object value) { |
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if (value == null) { |
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if (getNoData().isDefined()) {
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value = getNoData().getValue(); |
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} else {
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// Do nothing, no data value is undefined
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return;
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} |
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} |
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Arrays.fill(data, (byte) value); |
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} |
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byte[] getData() { |
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return data;
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} |
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@Override
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public void copyFrom(Band source) throws CopyFromBandException { |
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if (this.getColumns() != source.getColumns() || this.getRows() != source.getRows() |
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|| !(source instanceof DefaultBandByte)) {
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throw new CopyFromBandException(source, this); |
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} |
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System.arraycopy(((DefaultBandByte) source).getData(), 0, this.data, 0, this.getRows() |
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* this.getColumns());
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} |
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@Override
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public byte getValue(int row, int column) { |
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return data[row + column * getColumns()];
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} |
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@Override
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public void setValue(int row, int column, byte value) { |
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data[row + column * getColumns()] = value; |
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} |
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@Override
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public byte[] createRowBuffer() { |
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return new byte[getColumns()]; |
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} |
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@Override
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public void fetchRow(int row, Object rowBuffer) { |
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System.arraycopy(data, row * getColumns(), (byte[]) rowBuffer, 0, getColumns()); |
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} |
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@Override
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public void putRow(int row, Object rowBuffer) { |
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System.arraycopy((byte[]) rowBuffer, 0, data, row * getColumns(), getColumns()); |
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} |
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} |