root / trunk / libraries / libRaster / src / org / gvsig / raster / grid / roi / ROI.java @ 12664
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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) 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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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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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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package org.gvsig.raster.grid.roi; |
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import java.awt.Color; |
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import java.util.Arrays; |
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import org.gvsig.raster.buffer.RasterBufferInvalidAccessException; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.grid.Grid; |
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import org.gvsig.raster.grid.GridCell; |
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import org.gvsig.raster.grid.GridExtent; |
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import org.gvsig.raster.grid.IQueryableGrid; |
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/**
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* Clase que representa las Regiones de Interes.
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*
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* @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)
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*
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*/
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public abstract class ROI implements IQueryableGrid { |
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private String name = ""; |
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private Color color = null; |
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private Grid grid = null; // Grid asociado a la ROI y que le proporciona los datos. |
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private ROIStatistic statistic = null; |
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private GridExtent roiExtent = null; // M?nimo extent que contiene al ROI. |
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protected int xOffset = 0; // Coord. x del grid donde est? la esquina sup. iz. del roi (coords. pixel) |
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protected int yOffset = 0; // Coord. y del grid donde est? la esquina sup. iz. del roi (coords. pixel) |
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public ROI(Grid grid) {
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this.grid = grid;
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roiExtent = new GridExtent();
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roiExtent.setCellSize(grid.getCellSize()); |
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statistic = new ROIStatistic(this); |
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} |
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public ROI add(ROI roi){
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return null; |
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} |
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public ROI intersect(ROI roi){
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return null; |
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} |
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public ROI subtract(ROI roi){
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return null; |
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} |
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public ROI exclusiveOr(ROI roi){
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return null; |
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} |
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public double getAspect(int x, int y) |
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throws RasterBufferInvalidAccessException {
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if (isInGrid(x, y))
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return grid.getAspect(x, y);
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else return getNoDataValue(); |
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} |
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public double getCellSize() { |
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return grid.getCellSize();
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} |
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public byte getCellValueAsByte(int x, int y) |
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throws RasterBufferInvalidAccessException {
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if (isInGrid(x, y))
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return grid.getCellValueAsByte(xOffset+x, yOffset+y);
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else
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return (byte) grid.getNoDataValue(); |
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} |
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public double getCellValueAsDouble(int x, int y) |
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throws RasterBufferInvalidAccessException {
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if (isInGrid(x, y))
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return grid.getCellValueAsDouble(xOffset+x, yOffset+y);
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else
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return grid.getNoDataValue();
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} |
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public float getCellValueAsFloat(int x, int y) |
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throws RasterBufferInvalidAccessException {
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if (isInGrid(x, y))
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return grid.getCellValueAsFloat(xOffset+x, yOffset+y);
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else
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return (float) grid.getNoDataValue(); |
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} |
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public int getCellValueAsInt(int x, int y) |
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throws RasterBufferInvalidAccessException {
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if (isInGrid(x, y))
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return grid.getCellValueAsInt(xOffset+x, yOffset+y);
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else
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return (int) grid.getNoDataValue(); |
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} |
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public short getCellValueAsShort(int x, int y) |
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throws RasterBufferInvalidAccessException {
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if (isInGrid(x, y))
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return grid.getCellValueAsShort(xOffset+x, yOffset+y);
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else
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return (short) grid.getNoDataValue(); |
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} |
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public int getDirToNextDownslopeCell(int x, int y) throws RasterBufferInvalidAccessException { |
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return getDirToNextDownslopeCell(x, y, true); |
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} |
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public int getDirToNextDownslopeCell(int x, int y,boolean bForceDirToNoDataCell) |
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throws RasterBufferInvalidAccessException {
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if (isInGrid(x, y))
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return grid.getDirToNextDownslopeCell(x, y, bForceDirToNoDataCell);
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else
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return -1; |
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} |
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public double getDistToNeighborInDir(int iDir) { |
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return grid.getDistToNeighborInDir(iDir);
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} |
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public GridExtent getGridExtent() {
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return roiExtent;
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} |
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public int getLayerNX() { |
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return grid.getLayerNX();
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} |
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public int getLayerNY() { |
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return grid.getLayerNY();
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} |
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public double getMaxValue() { |
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if (!statistic.isStatisticsCalculated())
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try {
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statistic.calculateStatistics(); |
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} catch (RasterBufferInvalidAccessException e) {
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//No se calculan las estad?sticas. No hacemos nada
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e.printStackTrace(); |
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} |
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return statistic.getMax();
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} |
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public double getMeanValue() { |
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if (!statistic.isStatisticsCalculated())
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try {
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statistic.calculateStatistics(); |
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} catch (RasterBufferInvalidAccessException e) {
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//No se calculan las estad?sticas. No hacemos nada
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e.printStackTrace(); |
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} |
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return statistic.getMean();
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} |
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public double getMinValue() { |
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if (!statistic.isStatisticsCalculated())
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try {
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statistic.calculateStatistics(); |
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} catch (RasterBufferInvalidAccessException e) {
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//No se calculan las estad?sticas. No hacemos nada
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e.printStackTrace(); |
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} |
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return statistic.getMin();
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} |
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public int getNX() { |
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return roiExtent.getNX();
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} |
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public int getNY() { |
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return roiExtent.getNY();
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} |
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public double getNoDataValue() { |
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// TODO Ver si usar un nodatavalue especifico del roi.
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return grid.getNoDataValue();
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} |
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public double getSlope(int x, int y) throws RasterBufferInvalidAccessException { |
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if (isInGrid(x, y))
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return grid.getSlope(x, y);
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else
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return getNoDataValue();
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} |
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public GridCell[] getSortedArrayOfCells() throws RasterBufferInvalidAccessException { |
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int i;
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int iX,iY;
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int iNX = getNX();
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int iCells = getNX() * getNY();
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GridCell [] cells = null; |
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GridCell cell = null;
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cells = new GridCell[iCells];
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for (i = 0; i < iCells; i++){ |
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iX = i % iNX; |
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iY = i / iNX; |
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switch(grid.getDataType()){
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case IBuffer.TYPE_BYTE: cell = new GridCell(iX, iY, getCellValueAsByte(iX, iY)); break; |
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case IBuffer.TYPE_SHORT: cell = new GridCell(iX, iY, getCellValueAsShort(iX, iY)); break; |
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case IBuffer.TYPE_INT: cell = new GridCell(iX, iY, getCellValueAsInt(iX, iY)); break; |
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case IBuffer.TYPE_FLOAT: cell = new GridCell(iX, iY, getCellValueAsFloat(iX, iY)); break; |
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case IBuffer.TYPE_DOUBLE: cell = new GridCell(iX, iY, getCellValueAsDouble(iX, iY)); break; |
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} |
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cells[i] = cell; |
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} |
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Arrays.sort(cells);
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return cells;
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} |
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public double getVariance() { |
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if (!statistic.isStatisticsCalculated())
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try {
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statistic.calculateStatistics(); |
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} catch (RasterBufferInvalidAccessException e) {
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//No se calculan las estad?sticas. No hacemos nada
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e.printStackTrace(); |
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} |
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return statistic.getVariance();
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} |
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public abstract boolean isInGrid(int x, int y); |
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public boolean isNoDataValue(double dValue) { |
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return grid.isNoDataValue(dValue);
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} |
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public void setInterpolationMethod(int iMethod) { |
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grid.setInterpolationMethod(iMethod); |
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} |
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public Grid getGrid() {
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return grid;
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} |
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public Color getColor() { |
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return color;
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} |
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public void setColor(Color color) { |
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this.color = color;
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} |
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public String getName() { |
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return name;
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} |
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public void setName(String name) { |
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this.name = name;
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} |
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} |