gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / provider / fusion / BufferListFusion.java @ 2438
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package org.gvsig.raster.impl.provider.fusion; |
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import java.awt.geom.Rectangle2D; |
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import java.util.List; |
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import org.gvsig.fmap.dal.coverage.dataset.Buffer; |
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import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
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import org.gvsig.raster.impl.datastruct.ExtentImpl; |
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/**
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* Buffer composed by a list of buffers and its extents. The buffers are not tiles and it can
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* be superposed among them. The number of pixel of each buffer can be different too.
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class BufferListFusion { |
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//private Logger log = LoggerFactory.getLogger(MemoryMatrixBuffer.class);
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public static int FIRST = 0; |
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public static int LAST = 0; |
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public static int MIXED = 0; |
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public static int MINIMUM = 0; |
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public static int MAXIMUM = 0; |
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public static int AVERAGE = 0; |
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public static int COLOR_STATISTICS = 0; |
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public static int COLOR_HISTOGRAM = 0; |
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public static int COLOR_LINEAR_CORRELATION = 0; |
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private List<Buffer> bufferList = null; |
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private List<Extent> bboxList = null; |
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private PixelSquareStructure pxSquare = null; |
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private AbstractFusionMethod fusion = null; |
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private int alphaBandNumber = -1; |
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public BufferListFusion(
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List<Buffer> bufferList, |
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PixelSquareStructure pxSquare, |
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int fusionMethod) {
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this.bufferList = bufferList;
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if(pxSquare.bbox == null) { |
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Extent bbox = getBoundingBox(); |
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pxSquare.bbox = bbox; |
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} |
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this.pxSquare = pxSquare;
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if(fusionMethod == FIRST) {
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fusion = new FirstFusionMethod(bufferList, pxSquare);
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} |
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} |
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/**
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* Gets a entire window from buffers
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* @param ext
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* @param buf
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* @return
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*/
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public Buffer getWindow() { |
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if(pxSquare.dataType == Buffer.TYPE_BYTE) { |
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for (int row = 0; row < pxSquare.buffer.getHeight(); row++) { |
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for (int col = 0; col < pxSquare.buffer.getWidth(); col++) { |
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boolean hasData = false; |
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for (int band = 0; band < fusion.getBandCount(); band++) { |
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Byte value = fusion.getByteValue(row, col, band);
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if(value != null) { |
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pxSquare.buffer.setElem(row, col, band, value.byteValue()); |
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hasData = true;
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value = null;
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} |
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} |
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for (int band = fusion.getBandCount(); band < pxSquare.buffer.getBandCount(); band++) { |
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pxSquare.buffer.setElem(row, col, band, (byte)255); |
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} |
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if(alphaBandNumber != -1 && alphaBandNumber < pxSquare.buffer.getBandCount()) |
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if(hasData) //No data has been written |
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pxSquare.buffer.setElem(row, col, alphaBandNumber, (byte)255); |
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else
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pxSquare.buffer.setElem(row, col, alphaBandNumber, (byte)0); |
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} |
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} |
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} |
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if(pxSquare.dataType == Buffer.TYPE_FLOAT) { |
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for (int row = 0; row < pxSquare.buffer.getHeight(); row++) { |
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for (int col = 0; col < pxSquare.buffer.getWidth(); col++) { |
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for (int band = 0; band < fusion.getBandCount(); band++) { |
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pxSquare.buffer.setElem(row, col, band, fusion.getFloatValue(row, col, band)); |
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} |
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for (int band = fusion.getBandCount(); band < pxSquare.buffer.getBandCount(); band++) { |
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pxSquare.buffer.setElem(row, col, band, 0F);
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} |
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} |
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} |
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} |
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return pxSquare.buffer;
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} |
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/**
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* Sets a band to NODATA value
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* @param bufResult
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* @param tileExtent
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* @param buf
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* @param ex
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* @param pixelSize
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*/
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protected void clearMaskBuffer(Buffer buf) { |
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if(buf.getDataType() == Buffer.TYPE_BYTE) { |
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for (int i = 0; i < buf.getHeight(); i++) { |
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for (int j = 0; j < buf.getWidth(); j++) { |
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for (int iBand = 0; iBand < buf.getBandCount(); iBand++) { |
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buf.setElem(i, j, iBand, pxSquare.nodata.getValue().byteValue()); |
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} |
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} |
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} |
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return;
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} |
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if(buf.getDataType() == Buffer.TYPE_SHORT) { |
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for (int i = 0; i < buf.getHeight(); i++) { |
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for (int j = 0; j < buf.getWidth(); j++) { |
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for (int iBand = 0; iBand < buf.getBandCount(); iBand++) { |
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buf.setElem(i, j, iBand, pxSquare.nodata.getValue().shortValue()); |
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} |
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} |
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} |
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return;
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} |
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if(buf.getDataType() == Buffer.TYPE_INT) { |
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for (int i = 0; i < buf.getHeight(); i++) { |
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for (int j = 0; j < buf.getWidth(); j++) { |
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for (int iBand = 0; iBand < buf.getBandCount(); iBand++) { |
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buf.setElem(i, j, iBand, pxSquare.nodata.getValue().intValue()); |
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} |
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} |
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} |
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return;
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} |
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if(buf.getDataType() == Buffer.TYPE_FLOAT) { |
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for (int i = 0; i < buf.getHeight(); i++) { |
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for (int j = 0; j < buf.getWidth(); j++) { |
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for (int iBand = 0; iBand < buf.getBandCount(); iBand++) { |
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buf.setElem(i, j, iBand, pxSquare.nodata.getValue().floatValue()); |
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} |
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} |
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} |
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return;
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} |
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if(buf.getDataType() == Buffer.TYPE_DOUBLE) { |
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for (int i = 0; i < buf.getHeight(); i++) { |
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for (int j = 0; j < buf.getWidth(); j++) { |
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for (int iBand = 0; iBand < buf.getBandCount(); iBand++) { |
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buf.setElem(i, j, iBand, pxSquare.nodata.getValue().doubleValue()); |
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} |
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} |
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} |
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return;
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} |
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} |
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private Extent getBoundingBox() {
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double minX = Double.MAX_VALUE; |
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double minY = Double.MAX_VALUE; |
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double maxX = 0; |
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double maxY = 0; |
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if(bboxList != null) { |
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for (int i = 0; i < bboxList.size(); i++) { |
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Extent e = bboxList.get(i); |
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if(e.getMin().getX() < minX)
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minX = e.getMin().getX(); |
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if(e.getMin().getY() < minY)
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minY = e.getMin().getY(); |
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if(e.getMax().getX() > maxX)
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maxX = e.getMax().getX(); |
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if(e.getMax().getY() > maxY)
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maxY = e.getMax().getY(); |
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} |
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} else {
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for (int i = 0; i < bufferList.size(); i++) { |
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Rectangle2D e = bufferList.get(i).getDataExtent();
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if(e.getX() < minX)
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minX = e.getX(); |
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if((e.getY() - e.getHeight()) < minY)
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minY = (e.getY() - e.getHeight()); |
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if((e.getX() + e.getWidth()) > maxX)
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maxX = (e.getX() + e.getWidth()); |
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if(e.getY() > maxY)
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maxY = e.getY(); |
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} |
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} |
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return new ExtentImpl(minX, minY, maxX, maxY); |
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} |
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public void dispose() { |
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for (int i = 0; i < bufferList.size(); i++) { |
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bufferList.get(i).dispose(); |
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} |
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bufferList.clear(); |
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} |
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public void setAlphaBand(int alphaBandNumber) { |
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this.alphaBandNumber = alphaBandNumber;
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} |
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/*public void setNoDataValue(int datatype) {
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NoData noData = RasterLocator.getManager().getDataStructFactory().createDefaultNoData(bandCount, datatype);
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switch (datatype) {
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case Buffer.TYPE_BYTE:
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byteNoData = noData.getValue().byteValue();
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break;
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case Buffer.TYPE_SHORT:
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shortNoData = noData.getValue().shortValue();
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break;
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case Buffer.TYPE_INT:
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intNoData = noData.getValue().intValue();
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break;
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case Buffer.TYPE_FLOAT:
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floatNoData = noData.getValue().floatValue();
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break;
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case Buffer.TYPE_DOUBLE:
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doubleNoData = ((NoData)noData).getValue().doubleValue();
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break;
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}
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}
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private Extent getIntersectionBoundingBox(Extent bbox) {
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Extent intersection = bbox;
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if(bboxList != null) {
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for (int i = 0; i < bboxList.size(); i++) {
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Extent e = bboxList.get(i);
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intersection = intersection.intersection(e);
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}
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} else {
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for (int i = 0; i < bufferList.size(); i++) {
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Rectangle2D r = bufferList.get(i).getDataExtent();
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Extent e = new ExtentImpl(r.getMinX(), r.getMinY(), r.getMaxX(), r.getMaxY());
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intersection = intersection.intersection(e);
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}
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}
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return intersection;
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}*/
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} |