Revision 20871 trunk/libraries/libRaster/src/org/gvsig/raster/grid/Grid.java

View differences:

Grid.java
95 95 
	public Grid(IRasterDataSource datasets, int[] bands, GridExtent windowExtent)
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			throws RasterBufferInvalidException{
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		BufferFactory bufferFactory = new BufferFactory(datasets);
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		double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(),
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											bufferFactory.getSourceHeight());
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		layerExtent = new GridExtent(	bufferFactory.getDataSource().getExtent(),
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										calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth()));
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										cellSize[0],
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										cellSize[1]);
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		if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null)
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			dataType = bufferFactory.getDataSource().getDataType()[0];
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		this.bands = bands;
......
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	 * el reader es interpolado o no a partir de los extents de capa y la ventana seleccionada.
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	 */
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	public Grid(BufferFactory bufferFactory, boolean notInterp) {
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		double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(),
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				bufferFactory.getSourceHeight());
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		this.layerExtent = new GridExtent(	bufferFactory.getDataSource().getExtent(),
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											calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth()));
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											cellSize[0],
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											cellSize[1]);
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		if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null)
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			dataType = bufferFactory.getDataSource().getDataType()[0];
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		bands = bufferFactory.getDrawableBands();
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		this.windowExtent = new GridExtent(	bufferFactory.getDataExtent(), 


  		




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											calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth()));


  		




  
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											cellSize[0],


  		




  
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											cellSize[1]);


  		




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		rasterBuf = (RasterBuffer)bufferFactory.getRasterBuf();


  		




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  ......




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	public Grid(BufferFactory bufferFactory, int[] bands)


  		




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			throws RasterBufferInvalidException{


  		




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		//La petici?n es del raster completo


  		




  
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		double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(),


  		




  
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				bufferFactory.getSourceHeight()); 


  		




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		windowExtent = layerExtent = new GridExtent(bufferFactory.getDataSource().getExtent(), 


  		




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													calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth()));


  		




  
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													cellSize[0],


  		




  
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													cellSize[1]);


  		




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		if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null)


  		




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			dataType = bufferFactory.getDataSource().getDataType()[0];


  		




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		this.bands = bands;


  		




  ......




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	 */


  		




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	public Grid(BufferFactory bufferFactory) throws RasterBufferInvalidException {


  		




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		//La petici?n es del raster completo


  		




  
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		double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(),


  		




  
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				bufferFactory.getSourceHeight()); 


  		




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		windowExtent = layerExtent = new GridExtent(bufferFactory.getDataSource().getExtent(), 


  		




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													calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth()));


  		




  
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													cellSize[0],


  		




  
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													cellSize[1]);


  		




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		if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null)


  		




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			dataType = bufferFactory.getDataSource().getDataType()[0];


  		




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  ......




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	}


  		




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	/**


  		




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	 * Calcula el tama?o de celda a partir de un dataset y un ancho en pixeles


  		




  
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	 * Calcula el tama?o de celda a partir de un dataset, un ancho y un alto en pixeles


  		




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	 * @return


  		




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	 */


  		




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	private double calcCellSize(IRasterDataSource mDataset, double w) {


  		




  
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	private double[] calcCellSize(IRasterDataSource mDataset, double w, double h) {


  		




  
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		double dCellsize[] = new double[2];


  		




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		try {


  		




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			Extent e = mDataset.getExtent();


  		




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			double dCellsize = (e.getMax().getX() - e.getMin().getX() ) / w;


  		




  
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			dCellsize[0] = (e.getMax().getX() - e.getMin().getX() ) / w;


  		




  
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			dCellsize[1] = (e.getMax().getY() - e.getMin().getY() ) / h;


  		




  
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			return dCellsize;


  		




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		} catch (NullPointerException e) {


  		




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			return 1;


  		




  
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			dCellsize[0] = 1;


  		




  
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			dCellsize[1] = 1;


  		




  
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			return dCellsize;


  		




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		}


  		




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	}


  		




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