Application: gvSIG desktop » gvSIG raster

/* gvSIG. Geographic Information System of the Valencian Government

*

* Copyright (C) 2007-2008 Infrastructures and Transports Department

* of the Valencian Government (CIT)

* 

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU General Public License for more details.

* 

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 

* MA  02110-1301, USA.

* 

*/

package org.gvsig.raster.impl.grid.roi;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

import java.util.ArrayList;

import java.util.List;

import org.gvsig.fmap.dal.coverage.RasterLocator;

import org.gvsig.fmap.dal.coverage.RasterManager;

import org.gvsig.fmap.dal.coverage.datastruct.Extent;

import org.gvsig.fmap.dal.coverage.store.RasterDataStore;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.raster.roi.AbstractROI;

import org.gvsig.raster.roi.VectorialROI;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

/**

 * Clase que representa una regi?n de interes conformada por

 * elementos vectoriales.

 *

 * @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)

 *

 */

public class VectorialROIImpl extends AbstractROI implements VectorialROI {

        /**

         * Array de geometr?as (IGeometry) que definen el ROI.

         */

        private ArrayList<Geometry>                geometries   = null;

        public VectorialROIImpl(RasterDataStore store) {

                super(store);

                geometries = new ArrayList<Geometry>();

        }

        public boolean isInside(double x, double y, double w, double h) {

                if((x + w) < getROIExtent().minX() || x > getROIExtent().maxX() || (y - h) > getROIExtent().maxY() || y < getROIExtent().minY())

                        return false;

                for (int i = 0; i < geometries.size(); i++) {

                        Rectangle2D celda = new Rectangle2D.Double(x, y, w, h);

                        if(((Geometry)geometries.get(i)).intersects(celda))

                                return true;

                }

                return false;

        }

        public boolean isInsideOfPolygon(int x, int y) {

                double newX = x - xOffset;

                double newY = y - yOffset;

                //Comprobaci?n de que el punto cae dentro de los l?mites de la bbox de las geometr?as

                if (newX < 0 || newX > getROIPxWidth() || newY < 0 || newY > getROIPxHeight()) 

                        return false;

                Point2D p = getStore().rasterToWorld(new Point2D.Double(x, y));

                for (int i = 0; i < geometries.size(); i++){

                        if(((Geometry)geometries.get(i)).contains(p.getX(), p.getY()))

                                return true;

                }

                return false;

        }

        /**

         * A?ade una geometr?a a la ROI

         *

         * @param geometry

         */

        public void addGeometry(Geometry geometry){

                RasterManager rManager = RasterLocator.getManager();

                geometries.add(geometry);

                Rectangle2D geometryBounds = geometry.getBounds();

                if(getROIExtent() == null)

                        roiExtent = rManager.getDataStructFactory().createExtent(

                                        geometryBounds.getMinX(), 

                                        geometryBounds.getMaxY(), 

                                        geometryBounds.getMaxX(), 

                                        geometryBounds.getMinY());

                else

                        roiExtent = rManager.getDataStructFactory().createExtent(

                                                                        Math.min(geometryBounds.getMinX(), getROIExtent().minX()),

                                                                        Math.max(geometryBounds.getMaxY(), getROIExtent().maxY()),

                                                                        Math.max(geometryBounds.getMaxX(), getROIExtent().maxX()),

                                                                        Math.min(geometryBounds.getMinY(), getROIExtent().minY()));

                double minX = geometryBounds.getMinX() - Math.abs(geometryBounds.getMinX() - getStoreExtent().getMin().getX()) % getCellSize();

                double minY = (geometryBounds.getMinY()) - (Math.abs(geometryBounds.getMinY() - getStoreExtent().getMin().getY())) % getCellSize();

                double maxX = (geometryBounds.getMaxX()  + getCellSize()) - Math.abs(geometryBounds.getMaxX() - getStoreExtent().getMin().getX()) % getCellSize();

                double maxY = (geometryBounds.getMaxY() + getCellSize()) - (Math.abs(geometryBounds.getMaxY() - getStoreExtent().getMin().getY())) % getCellSize();

                if (geometries.size() > 1) {

                        minX = Math.min(minX, getROIExtent().getMin().getX());

                        minY = Math.min(minY, getROIExtent().getMin().getY());

                        maxX = Math.max(maxX, getROIExtent().getMax().getX());

                        maxY = Math.max(maxY, getROIExtent().getMax().getY());

                }

                xOffset = (int)((minX - getStoreExtent().getMin().getX()) / getCellSize());

                yOffset = (int)((getStoreExtent().getMax().getY()- maxY) / getCellSize());

                getStatistic().setCalculated(false);

        }

        /**

         * Eliminar la geometr?a con ?ndice <code>index</code> de la ROI

         *

         * @param index indice de la geometr?a a eliminar

         */

        public void deleteGeometry(int index){

                geometries.remove(index);

                getStatistic().setCalculated(false);

        }

        /**

         * Elimina todas las geometr?as que definen la ROI.

         *

         */

        public void clear(){

                geometries.clear();

                getStatistic().setCalculated(false);

        }

        /**

         *

         * @return ArryList con las geometr?as que definen la ROI

         */

        public List<Geometry> getGeometries() {

                return geometries;

        }

        /**

         * @deprecated The regions of interest should not be persisted

         */

        @SuppressWarnings("unchecked")

        public void loadFromState(PersistentState state)

        throws PersistenceException {

                super.loadFromState(state);

                List<Geometry> aux = state.getList("geometries");

                this.geometries = new ArrayList<Geometry>();

                this.geometries.addAll(aux);

                roiExtent = (Extent)state.get("extent");

        }

        /**

         * @deprecated The regions of interest should not be persisted

         */

        public void saveToState(PersistentState state) throws PersistenceException {

                super.saveToState(state);

                state.set("geometries", geometries);                

                state.set("extent", getROIExtent());

        }        

        /**

         * @deprecated The regions of interest should not be persisted

         */

        public static void registerPersistence() {

                PersistenceManager manager = ToolsLocator.getPersistenceManager();

                DynStruct definition = manager.getDefinition(PERSISTENT_NAME);

                if( definition == null ) {

                        definition = manager.addDefinition(

                                        VectorialROIImpl.class,

                                        PERSISTENT_NAME,

                                        PERSISTENT_DESCRIPTION,

                                        null, 

                                        null

                        );

                        definition.addDynFieldList("geometries").setClassOfItems(Geometry.class).setMandatory(false);

                        definition.addDynFieldObject("extent").setClassOfValue(Extent.class).setMandatory(true);

                }

        }

}