svn-gvsig-desktop / tags / v1_0_2_Build_897 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / layers / FLyrGT2.java @ 10444
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/*
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* Created on 20-sep-2005
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*
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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 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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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig.fmap.layers; |
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import java.awt.Graphics2D; |
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import java.awt.geom.Rectangle2D; |
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import java.awt.image.BufferedImage; |
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import java.io.IOException; |
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import java.util.NoSuchElementException; |
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import javax.print.attribute.PrintRequestAttributeSet; |
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import org.geotools.data.DataStore; |
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import org.geotools.data.DefaultQuery; |
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import org.geotools.data.DefaultTransaction; |
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import org.geotools.data.FeatureReader; |
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import org.geotools.data.FeatureSource; |
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import org.geotools.data.Query; |
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import org.geotools.data.Transaction; |
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import org.geotools.feature.Feature; |
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import org.geotools.feature.IllegalAttributeException; |
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import org.geotools.filter.AbstractFilter; |
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import org.geotools.filter.BBoxExpression; |
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import org.geotools.filter.Filter; |
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import org.geotools.filter.FilterFactory; |
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import org.geotools.filter.GeometryFilter; |
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import org.geotools.filter.IllegalFilterException; |
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import com.iver.cit.gvsig.fmap.DriverException; |
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import com.iver.cit.gvsig.fmap.ViewPort; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.core.ShapeFactory; |
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import com.iver.cit.gvsig.fmap.core.gt2.FLiteShape; |
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import com.iver.cit.gvsig.fmap.core.v02.FConstant; |
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import com.iver.cit.gvsig.fmap.core.v02.FConverter; |
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import com.iver.cit.gvsig.fmap.core.v02.FSymbol; |
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import com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor; |
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import com.iver.cit.gvsig.fmap.operations.strategies.VisitException; |
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import com.iver.utiles.swing.threads.Cancellable; |
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import com.vividsolutions.jts.geom.Envelope; |
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import com.vividsolutions.jts.geom.Geometry; |
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public class FLyrGT2 extends FLyrSecuential { |
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DataStore dataStore; |
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String typeName;
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String tableName;
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static FilterFactory ff = FilterFactory.createFilterFactory();
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public Rectangle2D getFullExtent() throws DriverException { |
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// TODO Auto-generated method stub
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Rectangle2D r;
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Envelope jtsR = null;
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try {
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jtsR = dataStore.getFeatureSource(tableName).getBounds(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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throw new DriverException(e); |
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} |
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r = FConverter.convertEnvelopeToRectangle2D(jtsR); |
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return r;
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} |
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private void prepareDrawing() |
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{ |
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} |
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private void drawSelectedFeatures() |
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{ |
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} |
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public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, |
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Cancellable cancel, double scale) throws DriverException { |
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if (!isWithinScale(scale)) return; |
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try {
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prepareDrawing(); |
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FeatureSource featSource = dataStore.getFeatureSource(tableName); |
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Envelope env = new Envelope(viewPort.getExtent().getMinX(),
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viewPort.getExtent().getMinY(), viewPort.getExtent().getMaxX(), |
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viewPort.getExtent().getMaxY()); |
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// create filter to select only features that satify 300000 >= "field" >= 100000
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BBoxExpression bb = ff.createBBoxExpression(env); |
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GeometryFilter bboxFilter = |
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ff.createGeometryFilter(AbstractFilter.GEOMETRY_BBOX); |
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bboxFilter.addRightGeometry(bb); |
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String strGeom = dataStore.getSchema(tableName).getDefaultGeometry().getName();
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bboxFilter.addLeftGeometry( |
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ff.createAttributeExpression(dataStore.getSchema(tableName),strGeom)); |
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Query theQuery = new DefaultQuery(tableName, bboxFilter); |
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// Query theQuery = new DefaultQuery(tableName, Filter.NONE);
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Transaction t = new DefaultTransaction();
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FeatureReader reader = dataStore.getFeatureReader(theQuery, t); |
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Feature f = null;
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FSymbol sym = new FSymbol(FConstant.SYMBOL_TYPE_FILL);
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while ( reader.hasNext() ) {
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if (cancel.isCanceled()) {
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reader.close(); |
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break;
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} |
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f = reader.next(); |
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Geometry geom = f.getDefaultGeometry(); |
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FLiteShape shpLite = new FLiteShape(geom);
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IGeometry gAux = ShapeFactory.createGeometry(shpLite); |
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gAux.draw(g,viewPort,sym); |
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} |
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reader.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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throw new DriverException(e); |
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} catch (IllegalFilterException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (NoSuchElementException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (IllegalAttributeException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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public void print(Graphics2D g, ViewPort viewPort, Cancellable cancel, |
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double scale, PrintRequestAttributeSet properties) throws DriverException { |
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// TODO Auto-generated method stub
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} |
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/**
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* @return Returns the dataStore.
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*/
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public DataStore getDataStore() {
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return dataStore;
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} |
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/**
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* @param dataStore The dataStore to set.
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* @throws IOException
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*/
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public void setDataStore(DataStore dataStore) throws IOException { |
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this.dataStore = dataStore;
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// feature type name is defaulted to the name of shapefile (without extension)
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typeName = dataStore.getTypeNames()[0];
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} |
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/**
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* @param tableName The tableName to set.
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*/
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public void setTableName(String tableName) { |
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this.tableName = tableName;
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} |
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public void process(FeatureVisitor visitor, FBitSet subset) throws DriverException, VisitException { |
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// TODO Auto-generated method stub
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} |
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public void process(FeatureVisitor visitor, Rectangle2D rect) throws DriverException, VisitException { |
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try
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{ |
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Envelope env = FConverter.convertRectangle2DtoEnvelope(rect); |
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BBoxExpression bb = ff.createBBoxExpression(env); |
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GeometryFilter bboxFilter = |
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ff.createGeometryFilter(AbstractFilter.GEOMETRY_BBOX); |
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bboxFilter.addRightGeometry(bb); |
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String strGeom = dataStore.getSchema(tableName).getDefaultGeometry().getName();
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bboxFilter.addLeftGeometry( |
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ff.createAttributeExpression(dataStore.getSchema(tableName),strGeom)); |
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Query theQuery = new DefaultQuery(tableName, bboxFilter); |
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// Query theQuery = new DefaultQuery(tableName, Filter.NONE);
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Transaction t = new DefaultTransaction();
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FeatureReader reader = dataStore.getFeatureReader(theQuery, t); |
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Feature f = null;
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while ( reader.hasNext() ) {
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f = reader.next(); |
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Geometry geom = f.getDefaultGeometry(); |
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FLiteShape shpLite = new FLiteShape(geom);
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IGeometry gAux = ShapeFactory.createGeometry(shpLite); |
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visitor.visit(gAux, -1);
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} |
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reader.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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throw new DriverException(e); |
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} catch (IllegalFilterException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (NoSuchElementException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (IllegalAttributeException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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public void process(FeatureVisitor visitor) throws DriverException, VisitException { |
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// TODO Auto-generated method stub
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} |
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public SelectableDataSource getRecordset() throws DriverException { |
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// TODO Auto-generated method stub
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// fjp: simplificar SelectableDataSource y quitar los m?todos que no
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// necesitamos. (getPrimeryKeys, getDataWare, getDataFactory... etc)
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return null; |
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} |
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} |