Revision 9523 branches/piloto3d/libraries/libCq CMS for java.old/src/org/cresques/io/data/Grid.java
Grid.java | ||
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/* |
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications. |
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana |
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* |
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* Copyright (C) 2004-5.
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* Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA. |
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* |
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* For more information, contact: |
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* |
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* cresques@gmail.com |
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*/ |
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package org.cresques.io.data; |
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import org.cresques.io.GeoRasterFile; |
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import org.cresques.io.datastruct.Histogram; |
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import org.cresques.io.datastruct.Statistic; |
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import org.cresques.io.exceptions.FileFoundInListException; |
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import org.cresques.px.Extent; |
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import org.cresques.px.PxRaster; |
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import org.cresques.util.Utilities; |
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public class Grid{ |
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public Grid(GeoRasterFile[] grf){} |
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public Grid(GeoRasterFile grf){} |
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public void addRenderizer(PxRaster pxR){} |
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public void addFile(GeoRasterFile grf){} |
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public void removeFile(GeoRasterFile grf){} |
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public class Grid implements IQueryableRaster, IWritableRaster { |
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private GeoRasterMultiFile grmf = new GeoRasterMultiFile(null); |
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private RasterBuf rasterBuf = null; |
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private Histogram histogram = null; |
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private PxRaster pxRaster = null; |
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private Statistic stats = null; |
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private int width = 0; |
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private int height = 0; |
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private double m_dNoDataValue = -99999; //TODO:temporal |
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/** |
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* Constructor |
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*/ |
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public Grid(){} |
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/** |
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* Constructor |
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* @param grf Lista de geoRasterFile |
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*/ |
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public Grid(GeoRasterFile[] grf){ |
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for(int i = 0; i< grf.length; i++) |
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addFile(grf[i]); |
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} |
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/** |
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* Constructor |
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* @param grf GeoRasterFile |
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*/ |
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public Grid(GeoRasterFile grf){ |
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addFile(grf); |
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} |
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/** |
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* Asigna el renderizador para el calculo de histogramas a partir |
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* de la visualizaci?n. |
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* @param pxR Renderizador. |
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*/ |
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public void addRenderizer(PxRaster pxR){ |
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this.pxRaster = pxR; |
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this.stats = pxR.stats; |
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this.getHistogram().addRenderizer(pxR); |
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} |
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/** |
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* A?ade un GeoRasterFile al Grid |
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* @param grf GeoRasterFile a a?adir |
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*/ |
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public void addFile(GeoRasterFile grf){ |
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try{ |
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grmf.addFile(grf); |
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width = grf.getWidth(); |
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height = grf.getHeight(); |
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}catch(FileFoundInListException e){ |
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//El fichero est? en la lista por lo que no lo a?adimos |
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} |
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} |
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/** |
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* Elimina un GeoRasterFile del Grid |
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* @param grf GeoRasterFile a eliminar |
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*/ |
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public void removeFile(GeoRasterFile grf){ |
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grmf.removeFile(grf); |
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} |
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/** |
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* Obtiene la estructura que contiene la lista de ficheros del Grid |
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* @return GeoRasterMultiFile |
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*/ |
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public GeoRasterMultiFile getGeoRasterMultiFile(){ |
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return grmf; |
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} |
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/** |
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* Libera el buffer de memoria |
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*/ |
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public void free(){ |
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rasterBuf = null; |
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System.gc(); |
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} |
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/** |
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* Resetea la asignaci?n de dibujado de las bandas de la imagen |
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* sobre el DataImage cuando se hace un update para esta banda. |
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*/ |
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public void clearDrawableBand(){ |
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for(int i = 0; i< grmf.getFileCount(); i++) |
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grmf.getBands().clearDrawableBand(); |
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} |
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/** |
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* Para este GeoRasterFile asigna que bandas se pintaran |
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* sobre el RasterBuf cuando se haga un update. Cada posici?n del vector es una banda |
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* del rasterBuf y el contenido de esa posici?n es la banda de la imagen que se dibujar? |
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* sobre ese RasterBuf. |
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* @param drawableBands . |
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*/ |
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public void addDrawableBands(int[] drawableBands){ |
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for(int i = 0; i< drawableBands.length; i++) |
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grmf.getBands().addDrawableBand(i, drawableBands[i]); |
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} |
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/** |
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* Asigna el ?rea de interes en coordenadas del mundo real. Si las coordenadas exceden del tama?o de la imagen |
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* estas coordenadas son ajustadas el extent. |
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* @param x Coordenada X, esquina superior izquierda |
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* @param y Coordenada Y, esquina superior izquierda |
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* @param w Ancho del ?rea |
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* @param h Alto del ?rea |
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* @throws ArrayIndexOutOfBoundsException |
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*/ |
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public void setAreaOfInterest(double x, double y, double w, double h) throws ArrayIndexOutOfBoundsException{ |
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Extent ext = new Extent(x, y, x + w, y + h); |
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ext = Utilities.calculateAdjustedView(ext, grmf.getExtent()); |
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rasterBuf = grmf.getWindowRaster(x, y, w, h); |
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//width = rasterBuf.getWidth(); |
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//height = rasterBuf.getHeight(); |
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} |
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/** |
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* Asigna el ?rea de interes en coordenadas pixel. Si las coordenadas exceden del tama?o de la imagen |
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* lanza una excepci?n. |
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* @param x Coordenada X, esquina superior izquierda |
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* @param y Coordenada Y, esquina superior izquierda |
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* @param w Ancho del ?rea |
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* @param h Alto del ?rea |
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* @throws ArrayIndexOutOfBoundsException |
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*/ |
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public void setAreaOfInterest(int x, int y, int w, int h) throws ArrayIndexOutOfBoundsException{ |
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if((x + w) > getWidth() || (y + h) > getHeight()) |
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throw new ArrayIndexOutOfBoundsException("Out of Image"); |
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rasterBuf = grmf.getWindowRaster(x, y, w, h); |
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//width = rasterBuf.getWidth(); |
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//height = rasterBuf.getHeight(); |
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} |
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/** |
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* Ajusta el ?rea del grid a un ancho y un alto dado en pixeles. Este ajuste se har? |
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* en relaci?n a un m?todo de interpolaci?n definido en el par?metro. |
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* @param w Ancho de la nueva imagen. |
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* @param h Alto de la nueva imagen. |
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* @param interpolation M?todo de interpolaci?n que se usar? en el ajuste. |
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* @param bands Bandas que se desea en el nuevo RasterBuf ajustado. Si este par?metro es null |
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* se usar?n todas las bandas de la imagen. |
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*/ |
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public void setAdjustedWindow(int w, int h, int interpolationMethod, int[] bands){ |
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if(w == width && h == height) |
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return; |
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switch(interpolationMethod){ |
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case IQueryableRaster.INTERPOLATION_NearestNeighbour: |
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rasterBuf = rasterBuf.adjustRasterNearestNeighbour(w, h, bands); |
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break; |
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case IQueryableRaster.INTERPOLATION_Bilinear: |
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System.out.println("Method not implemented yet"); |
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break; |
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case IQueryableRaster.INTERPOLATION_InverseDistance: |
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System.out.println("Method not implemented yet"); |
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break; |
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case IQueryableRaster.INTERPOLATION_BicubicSpline: |
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System.out.println("Method not implemented yet"); |
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break; |
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case IQueryableRaster.INTERPOLATION_BSpline: |
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System.out.println("Method not implemented yet"); |
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break; |
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} |
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//width = rasterBuf.getWidth(); |
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//height = rasterBuf.getHeight(); |
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} |
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public RasterBuf getData(int x, int y, int w, int h) { |
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return null; |
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} |
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/** |
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* Obtiene el tipo de datos del grid. |
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* @return entero que representa el tipo de dato de las celdas del grid. |
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*/ |
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public int getDataType() { |
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return grmf.getDataType()[0]; |
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} |
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/** |
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* Obtiene la altura del grid. |
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* @return altura en celdas del grid. |
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*/ |
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public int getHeight() { |
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return height; |
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} |
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/** |
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* Obtiene la anchura del grid. |
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* @return anchura en celdas del grid. |
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*/ |
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public int getWidth() { |
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return width; |
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} |
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public double getXCellSize() { |
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//TODO:remove this |
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Extent e = grmf.getExtent(); |
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double dCellsize = (e.getMax().getX() - e.getMin().getX() ) / (double) width; |
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return dCellsize; |
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} |
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public double getYCellSize() { |
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return 0; |
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} |
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public boolean isNoData(int x, int y, int band) { |
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return false; |
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} |
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public void setNoDataValue(double dNoDataValue){ |
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//TODO:temporal |
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m_dNoDataValue = dNoDataValue; |
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} |
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public double getNoDataValue(){ |
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return m_dNoDataValue; |
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} |
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public void setDataType(int dt) { |
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} |
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public int getBandCount(){ |
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if(rasterBuf != null) |
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return rasterBuf.getBandCount(); |
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else |
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return this.getGeoRasterMultiFile().getBandCount(); |
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} |
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/** |
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* Obtiene el buffer de datos del grid |
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* @return RasterBuf |
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*/ |
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public RasterBuf getRasterBuf() { |
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return rasterBuf; |
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} |
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/** |
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* Obtiene el objeto histograma asociado al grid |
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* @return |
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*/ |
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public Histogram getHistogram() { |
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if(histogram == null) |
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histogram = new Histogram(this); |
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return histogram; |
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} |
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/** |
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* Obtiene la clase para estadisticas |
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* @return |
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*/ |
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public Statistic getStatistic() { |
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return stats; |
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} |
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/** |
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* Evalua si una coordenada pixel cae dentro de la imagen. |
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* @param x coordenada pixel X |
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* @param y coordenada pixel Y |
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*/ |
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public boolean isPixelInGrid(int x, int y){ |
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return (x >= 0 && y >= 0 && x <= getWidth() && y <= getHeight()); |
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} |
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/** |
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* Extent del grid |
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*/ |
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public Extent getExtent(){ |
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return grmf.getExtent(); |
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} |
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} |
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